Methods and systems for integration of industrial site efficiency losses to produce LNG and/or LIN

• US 10,563,914 B2
• Filed: 08/05/2016
• Issued: 02/18/2020
• Est. Priority Date: 08/06/2015
• Status: Active Grant

• Current Assignee: L'Air Liquide Societe Anonyme Pour L'Etude et L'Exploitation Des Procedes Georges Claude (L'Air Liquide SA)
• Original Assignee: L'Air Liquide Societe Anonyme Pour L'Etude et L'Exploitation Des Procedes Georges Claude (L'Air Liquide SA)
• Inventors: Guillard, Alain, Turney, Michael A.
• Primary Examiner(s): Munson, Patricia H
• Assistant Examiner(s): Stewart, Crystol
• Application Number:
  US15/229,843
• Publication Number:
  US 20170038132A1
• Time in Patent Office: 1,292 Days
• Field of Search: None
• CPC Class Codes: F25J 1/0015 Nitrogen
• CPC Class Codes: F25J 1/0022 Hydrocarbons, e.g. natural gas
• CPC Class Codes: F25J 1/0037 of a return stream
• CPC Class Codes: F25J 1/0045 by vaporising a liquid return stream
• CPC Class Codes: F25J 1/0052 by vaporising a liquid refrigerant stream
• CPC Class Codes: F25J 1/0072 Nitrogen
• CPC Class Codes: F25J 1/0092 Mixtures of hydrocarbons comprising possibly also minor amounts of nitrogen
• CPC Class Codes: F25J 1/0202 in a quasi-closed internal refrigeration loop F25J1/0208, F25J1/0219, F25J1/0224 take precedence
• CPC Class Codes: F25J 1/0208 in combination with an internal quasi-closed refrigeration loop, e.g. with deep flash recycle loop F25J1/021 takes precedence
• CPC Class Codes: F25J 1/0221 using the cold stored in an external cryogenic component in an open refrigeration loop
• CPC Class Codes: F25J 1/0232 integration within a pressure letdown station of a high pressure pipeline system
• CPC Class Codes: F25J 1/0238 Purification or treatment step is integrated within one refrigeration cycle only, i.e. the same or single refrigeration cycle provides feed gas cooling (if present) and overhead gas cooling
• CPC Class Codes: F25J 1/0259 Modularity and arrangement of parts of the liquefaction unit and in particular of the cold box, e.g. pre-fabrication, assembling and erection, dimensions, horizontal layout "plot"
• CPC Class Codes: F25J 1/0275 adapted for special use of the liquefaction unit, e.g. portable or transportable devices
• CPC Class Codes: F25J 1/0292 Refrigerant compression by cold or cryogenic suction of the refrigerant gas
• CPC Class Codes: F25J 2205/02 using simple phase separation in a vessel or drum
• CPC Class Codes: F25J 2205/04 in the feed line, i.e. upstream of the fractionation step
• CPC Class Codes: F25J 2210/06 Splitting of the feed stream, e.g. for treating or cooling in different ways
• CPC Class Codes: F25J 2210/40 Air or oxygen enriched air, i.e. generally less than 30mol% of O2
• CPC Class Codes: F25J 2210/42 Nitrogen
• CPC Class Codes: F25J 2210/60 : Natural gas or synthetic natural gas [SNG]
• CPC Class Codes: F25J 2215/42 : Nitrogen or special cases, e.g. multiple or low purity N2
• CPC Class Codes: F25J 2220/02 : Separating impurities in general from the feed stream
• CPC Class Codes: F25J 2220/44 : Separating high boiling, i.e. less volatile components from nitrogen, e.g. CO, Ar, O2, hydrocarbons
• CPC Class Codes: F25J 2220/60 : Separating impurities from natural gas, e.g. mercury, cyclic hydrocarbons
• CPC Class Codes: F25J 2220/64 : Separating heavy hydrocarbons, e.g. NGL, LPG, C4+ hydrocarbons or heavy condensates in general
• CPC Class Codes: F25J 2220/66 : Separating acid gases, e.g. CO2, SO2, H2S or RSH
• CPC Class Codes: F25J 2220/68 : Separating water or hydrates
• CPC Class Codes: F25J 2230/20 : Integrated compressor and process expander; Gear box arrangement; Multiple compressors on a common shaft
• CPC Class Codes: F25J 2230/22 : Compressor driver arrangement, e.g. power supply by motor, gas or steam turbine
• CPC Class Codes: F25J 2230/30 : Compression of the feed stream
• CPC Class Codes: F25J 2230/42 : the fluid being nitrogen
• CPC Class Codes: F25J 2230/60 : the fluid being hydrocarbons or a mixture of hydrocarbons
• CPC Class Codes: F25J 2240/02 : Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream
• CPC Class Codes: F25J 2240/12 : the fluid being nitrogen
• CPC Class Codes: F25J 2240/40 : Expansion without extracting work, i.e. isenthalpic throttling, e.g. JT valve, regulating valve or venturi, or isentropic nozzle, e.g. Laval
• CPC Class Codes: F25J 2240/44 : the fluid being nitrogen
• CPC Class Codes: F25J 2245/02 : Recycle of a stream in general, e.g. a by-pass stream
• CPC Class Codes: F25J 2245/42 : the recycled stream being nitrogen
• CPC Class Codes: F25J 2260/42 : Integration in an installation using nitrogen, e.g. as utility gas, for inerting or purging purposes in IGCC, POX, GTL, PSA, float glass forming, incineration processes, for heat recovery or for enhanced oil recovery
• CPC Class Codes: F25J 2270/04 : Internal refrigeration with work-producing gas expansion loop
• CPC Class Codes: F25J 2270/08 : Internal refrigeration by flash gas recovery loop
• CPC Class Codes: F25J 2270/14 : External refrigeration with work-producing gas expansion loop
• CPC Class Codes: F25J 2270/16 : with mutliple gas expansion loops of the same refrigerant
• CPC Class Codes: F25J 2270/42 : Quasi-closed internal or closed external nitrogen refrigeration cycle
• CPC Class Codes: F25J 2270/88 : Quasi-closed internal refrigeration or heat pump cycle, if not otherwise provided
• CPC Class Codes: F25J 2290/10 : Mathematical formulae, modeling, plot or curves; Design methods
• CPC Class Codes: F25J 2290/12 : Particular process parameters like pressure, temperature, ratios
• CPC Class Codes: F25J 2290/34 : Details about subcooling of liquids
• CPC Class Codes: F25J 2290/70 : Processing device is mobile or transportable, e.g. by hand, car, ship, rocket engine etc.
• CPC Class Codes: F25J 3/0257 : separation of nitrogen from air F25J3/04, production of nitrogen in general C01B21/00
• CPC Class Codes: F25J 3/04412 : in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
• CPC Class Codes: G06Q 10/06313 : Resource planning in a project environment
• CPC Class Codes: G06Q 10/0637 : Strategic management or analysis, e.g. setting a goal or target of an organisation; Planning actions based on goals; Analysis or evaluation of effectiveness of goals
• CPC Class Codes: G06Q 50/00 : Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism healthcare informatics G16H
• CPC Class Codes: G06Q 50/06 : Energy or water supply

Abstract

A method includes receiving input corresponding to a proposed configuration of a liquefaction facility and identifying a plurality of components utilized to produce LNG and/or LIN at the facility. The method includes determining an alternative configuration that is different from the proposed configuration. Determining the alternative configuration may include identifying resources accessible to a proposed location for the liquefaction facility and whether at least one of the resources accessible to the proposed location corresponds to a resource generated by a component identified by the proposed configuration, and determining whether to omit at least one component of the plurality of components identified by the proposed configuration. The method includes omitting the at least one component from the alternative configuration, and generating a report based on the proposed configuration and the alternative configuration. The report includes information indicating a difference between the proposed configuration and the alternative configuration.

Claims

1. A method comprising:

receiving one or more inputs corresponding to a proposed configuration of a liquefaction facility, wherein the proposed configuration identifies a plurality of components utilized to produce liquefied natural gas (LNG) and/or liquid nitrogen (LIN) at the liquefaction facility when configured according to the proposed configuration;

determining an alternative configuration of the liquefaction facility, wherein the alternative configuration is different from the proposed configuration, and wherein determining the alternative configuration includes;

identifying one or more candidate locations for the liquefaction facility;

identifying resources accessible to each of the one or more candidate locations, wherein the identified resources are accessible from at least one source external to the liquefaction facility, and wherein the identified resources are utilized by the liquefaction facility to produce the LNG and/or the LIN;

determining whether at least one identified resource of the resources accessible to the one or more candidate locations corresponds to a resource used during production of the LNG and/or the LIN at the liquefaction facility using the proposed configuration; and

determining, based at least in part on the identified resources accessible to the one or more candidate locations, whether to omit or reduce a size of at least one component of the plurality of components identified by the proposed configuration; and

omitting or reducing the size of the at least one component of the alternative configuration of the liquefaction facility in response to a determination that the at least one identified resource corresponds to the resource generated by the at least one component;

generating a report based on the proposed configuration and the alternative configuration, wherein the report includes information indicating a difference between the proposed configuration and the alternative configuration; and

constructing the liquefaction facility according to the alternative configuration included in the report, wherein the liquefaction facility constructed according to the alternative configuration is configured to provide refrigeration capacity for producing the LNG and/or the LIN via letdown of one or more resources accessible to a location of the liquefaction facility, and wherein at least a portion of the resources letdown by the liquefaction facility is provided to a facility external to the liquefaction facility at a pressure that is lower than a pressure for which the resources are available to the external facility via other sources.

2. The method of claim 1, wherein the resources accessible to the one or more candidate locations include one or more of natural gas, nitrogen, other industrial gases, or a combination thereof, and wherein each of the resources accessible to the one or more candidate locations are within a threshold distance of each of the one or more candidate locations.

3. The method of claim 2, wherein the one or more of the natural gas, the nitrogen, the other industrial gas, or the combination thereof are provided to the liquefaction facility from the at least one source at a pressure greater than 15 bara.

4. The method of claim 1, wherein the proposed configuration comprises a compression unit driven by one of an electrical motor, a gas fired turbine, or a steam turbine, and wherein determining the alternative configuration further comprises omitting or reducing the size of the compression unit.

5. The method of claim 4, wherein the compression unit is a nitrogen compression unit.

6. The method of claim 1, wherein identifying the resources accessible to each of the one or more candidate locations further comprises:

identifying one or more sources for a plurality of resources;

calculating, for each of the one or more candidate locations, a distance between a particular candidate location of the one or more candidate locations and each of the one or more sources; and

determining, for each of the one or more candidate locations, whether the distance between the particular candidate location and each of the one or more sources satisfies a threshold distance, wherein the resources accessible to the particular candidate location correspond to resources associated with particular sources that are within the threshold distance of the particular candidate location.

7. The method of claim 6, wherein the threshold distance is ten kilometers.

8. The method of claim 6, wherein the threshold distance is two kilometers.

9. The method of claim 6, wherein the threshold distance is one kilometer.

10. The method of claim 6, wherein the one or more sources include pipelines, production facilities, or both.

11. The method of claim 1, the method further comprising:

determining a first footprint and a second footprint, wherein the first footprint indicates an area and/or shape occupied by one or more components of the liquefaction facility according to the proposed configuration, and wherein the second footprint indicates an area and/or shape occupied by one or more components of the liquefaction facility according to the alternative configuration;

determining a threshold area for each of the one or more candidate locations based on an area and/or shape of available space at each of the one or more candidate locations, the area and/or shape of the available space at each of the one or more candidate locations determined based on a configuration of existing components, proposed components, or a combination thereof, at each of the one or more candidate locations; and

determining whether at least one of the first footprint and the second footprint satisfies a threshold area and/or shape of the available space at each of the one or more candidate locations.

12. The method of claim 11, wherein determining whether at least one of the first footprint and the second footprint satisfies the threshold area and/or shape of the available space at each of the one or more candidate locations comprises:

determining whether the area and/or shape of the first footprint is less than or equal to the threshold area and/or shape of the available space at each of the one or more candidate locations; and

determining whether the area and/or shape of the second footprint is less than or equal to the threshold area and/or shape of the available space at each of the one or more candidate locations.

13. The method of claim 11, further comprising altering an arrangement of the plurality of components of the liquefaction facility to produce the alternative configuration in response to a determination that the area and/or shape of the first footprint is greater than the threshold area and/or shape of the available space at one of the one or more candidate locations.

14. The method of claim 1, further comprising identifying one or more access points, each of the one or more access points corresponding to a location for providing a tie-in line to provide access to the at least one identified resource to the liquefaction facility, wherein each of the one or more candidate locations is identified as a location that provides an access point to at least one of the identified resources.

15. The method of claim 14, further comprising estimating a cost to construct the one or more tie-in lines to provide the access points to the one or more of the identified resources, wherein the report includes cost information representative of cost to construct the one or more tie-in lines.

29. The method of claim 1 further comprising the steps of:

identifying one or more facilities that supply the resources to the at least one pipeline;

determining a demand for the resources downstream of the one or more facilities that supply the resources to the at least one pipeline;

determining, based on the demand, whether production of the resources by the one or more facilities can be increased based on estimated production of the LNG and/or the LIN according to the alternative configuration of the liquefaction; and

in response to a determination that production of the resources by at least one of the one or more facilities can be increased, initiating operations to increase production of the resources by at least the one of the or more facilities, wherein additional amounts of the resources produced in response to the operations to increase the production are provided to the pipeline, and wherein the additional amounts of the resources are utilized by the liquefaction facility to produce the LNG and/or the LIN.

30. The method of claim 29 further comprising identifying one or more additional candidate locations in response to a determination that production of the resources by at least one of the one or more facilities cannot be increased, wherein each of the one or more additional candidate locations correspond to locations where the identified resources are accessible, and wherein facilities that provide the identified resources to the one or more additional candidate locations can increase production of the identified resources to produce additional amounts of the resources for use by the liquefaction facility to produce the LNG and/or LIN.

31. The method of claim 1 further comprising at least one of:

determining relationship information for each configuration of the liquefaction facility,

wherein the relationship information is representative of relationships between components of the liquefaction facility for each configuration of the liquefaction facility, and wherein the relationship information is included in the report;

calculating resource utilizations for each configuration of the liquefaction facility;

ranking the configurations of the liquefaction facility according to a composite of one or more ranking parameters, wherein the report comprises at least one of the schematic drawings, the relationship information, the information representative of the resource utilizations, and the rankings; and

providing an interactive graphical user interface configured to receive inputs from a user,

wherein the inputs modify at least one configuration of the liquefaction facility.

16. An apparatus comprising:

a processor; and

a memory coupled to the processor, the memory storing instructions that, when executed by the processor, cause the processor to perform operations comprising;

receiving one or more inputs corresponding to a proposed configuration of a liquefaction facility, wherein the proposed configuration identifies a plurality of components utilized to produce liquefied natural gas (LNG) and/or liquid nitrogen (LIN) at the liquefaction facility when configured according to the proposed configuration;

determining an alternative configuration of the liquefaction facility, wherein the alternative configuration is different from the proposed configuration, and wherein determining the alternative configuration includes;

identifying one or more candidate locations for the liquefaction facility;

identifying resources accessible to each of the one or more candidate locations, wherein the identified resources are accessible from at least one source external to the liquefaction facility, and wherein the identified resources are utilized by the liquefaction facility to produce the LNG and/or the LIN;

determining whether at least one identified resource of the resources accessible to the one or more candidate locations corresponds to a resource used by the at least one component during production of the LNG and/or the LIN at the liquefaction facility using the proposed configuration; and

determining, based at least in part on the identified resources accessible to the one or more candidate locations, whether to omit or reduce a size of at least one component of the plurality of components identified by the proposed configuration; and

omitting or reducing the size of the at least one component of the alternative configuration of the liquefaction facility in response to a determination that the at least one identified resource corresponds to the resource generated by the at least one component;

generating a schematic drawing for the proposed configuration of the liquefaction facility and a schematic drawing for the alternative configuration of the liquefaction facility, wherein the schematic drawing for the alternative configuration of the liquefaction facility comprises one or more components configured to provide refrigeration capacity for producing the LNG and/or the LIN via letdown of resources accessible to a particular candidate location for the alternative configuration of the liquefaction facility and one or more components configured to provide at least a portion of the letdown resources to an a facility external to the liquefaction facility of the alternative configuration; and

generating a report based on the proposed configuration and the alternative configuration, wherein the report includes the schematic drawing for the proposed configuration and the schematic drawing for the alternative configuration.

17. The apparatus of claim 16, wherein the resources accessible to the one or more candidate locations include natural gas, nitrogen, another industrial gas, or a combination thereof, and wherein the at least one source external to the liquefaction facility includes at least one pipeline.

18. The apparatus of claim 16, the operations further comprising:

identifying one or more facilities that supply the resources to the at least one pipeline;

determining a demand for the resources downstream of the one or more facilities that supply the resources to the at least one pipeline;

determining, based on the demand, whether production of the resources by the one or more facilities can be increased; and

in response to a determination that production of the resources by at least one of the one or more facilities can be increased, initiating operations to increase production of the resources by at least the one of the or more facilities, wherein additional amounts of the resources produced in response to the operations to increase the production are provided to the pipeline, and wherein the additional amounts of the resources are utilized by the liquefaction facility to produce the LNG and/or the LIN.

19. The apparatus of claim 18, the operations further comprising identifying one or more additional candidate locations in response to a determination that production of the resources by at least one of the one or more facilities cannot be increased, wherein each of the one or more additional candidate locations correspond to locations where the identified resources are accessible, and wherein facilities that provide the identified resources to the one or more additional candidate locations can increase production of the identified resources to produce additional amounts of the resources for use by the liquefaction facility to produce the LNG and/or LIN.

20. The apparatus of claim 16, the operations further comprising:

determining a first footprint and a second footprint, wherein the first footprint indicates an area occupied by one or more components of the liquefaction facility according to the proposed configuration, and wherein the second footprint indicates an area occupied by one or more components of the liquefaction facility according to the alternative configuration;

determining a threshold area for each of the one or more candidate locations based on available space and shape at each of the one or more candidate locations, the available space at each of the one or more candidate locations determined based on a configuration of existing components, proposed components, or a combination thereof, at each of the one or more candidate locations; and

determining whether at least one of the first footprint and the second footprint satisfies the threshold area and shape for each of the one or more candidate locations.

21. The apparatus of claim 20, the operations further comprising altering an arrangement of the plurality of components of the liquefaction facility to produce the alternative configuration in response to a determination that the area associated with the first footprint is greater than the available space at one of the one or more candidate locations.

22. The apparatus of claim 21, the operations further comprising identifying one or more access points, each of the one or more access points corresponding to a location for providing a tie-in line to provide access to the at least one identified resource to the liquefaction facility, wherein each of the one or more candidate locations is identified as a location that provides an access point to at least one of the identified resources.

23. A non-transitory computer-readable storage medium storing instructions that, when executed by at least one processor, cause the at least one processor to perform operations comprising:

receiving one or more inputs corresponding to a proposed configuration of a liquefaction facility, wherein the proposed configuration identifies a plurality of components utilized to produce liquefied natural gas (LNG) and/or liquid nitrogen (LIN) at the liquefaction facility when configured according to the proposed configuration;

determining an alternative configuration of the liquefaction facility, wherein the alternative configuration is different from the proposed configuration, and wherein determining the alternative configuration includes;

identifying one or more candidate locations for the liquefaction facility;

identifying resources accessible to each of the one or more candidate locations, wherein the identified resources are accessible from at least one source external to the liquefaction facility, and wherein the identified resources are utilized by the liquefaction facility to produce the LNG and/or the LIN;

determining whether at least one identified resource of the resources accessible to the one or more candidate locations corresponds to a resource used during production of the LNG and/or the LIN at the liquefaction facility using the proposed configuration; and

determining, based at least in part on the identified resources accessible to the one or more candidate locations, whether to omit or reduce a size of at least one component of the plurality of components identified by the proposed configuration; and

omitting or reducing the size of the at least one component of the alternative configuration of the liquefaction facility in response to a determination that the at least one identified resource corresponds to the resource generated by the at least one component;

generating a schematic drawing for the proposed configuration of the liquefaction facility and a schematic drawing for the alternative configuration of the liquefaction facility, wherein the schematic drawing for the alternative configuration of the liquefaction facility comprises one or more components configured to provide refrigeration capacity for producing the LNG and/or the LIN via letdown of resources accessible to a particular candidate location for the alternative configuration of the liquefaction facility and one or more components configured to provide at least a portion of the letdown resources to an a facility external to the liquefaction facility of the alternative configuration; and

generating a report based on the proposed configuration and the alternative configuration, wherein the report includes the schematic drawing for the proposed configuration and the schematic drawing for the alternative configuration.

24. The non-transitory computer-readable storage medium of claim 23, wherein the resources accessible to the one or more candidate locations include natural gas, nitrogen, or both, and wherein the at least one source external to the liquefaction facility includes at least one pipeline.

25. The non-transitory computer-readable storage medium of claim 24, the operations further comprising:

identifying one or more facilities that supply the resources to the at least one pipeline;

determining a demand for the resources downstream of the one or more facilities that supply the resources to the at least one pipeline;

determining, based on the demand, whether production of the resources by the one or more facilities can be increased based on estimated production of the LNG and/or the LIN according to the alternative configuration of the liquefaction;

in response to a determination that production of the resources by at least one of the one or more facilities can be increased, initiating operations to increase production of the resources by at least the one of the or more facilities, wherein additional amounts of the resources produced in response to the operations to increase the production are provided to the pipeline, and wherein the additional amounts of the resources are utilized by the liquefaction facility to produce the LNG and/or the LIN; and

in response to a determination that production of the resources by at least one of the one or more facilities cannot be increased, identifying one or more additional candidate locations, wherein each of the one or more additional candidate locations correspond to locations where the identified resources are accessible, and wherein facilities that provide the identified resources to the one or more additional candidate location can increase production of the identified resources to produce additional amounts of the resources for use by the liquefaction facility to produce the LNG and/or the LIN.

26. The non-transitory computer-readable storage medium of claim 23, the operations further comprising:

determining a first footprint and a second footprint, wherein the first footprint indicates an area and shape occupied by one or more components of the liquefaction facility according to the proposed configuration, and wherein the second footprint indicates an area and shape occupied by one or more components of the liquefaction facility according to the alternative configuration;

determining a threshold area and/or shape for each of the one or more candidate locations based on available space and shape at each of the one or more candidate locations, the available space at each of the one or more candidate locations determined based on a configuration of existing components, proposed components, or a combination thereof, at each of the one or more candidate locations;

determining whether at least one of the first footprint and the second footprint satisfies the threshold area and/or shape for each of the one or more candidate locations; and

altering an arrangement of the plurality of components of the liquefaction facility to produce the alternative configuration in response to a determination that the area and/or shape associated with the first footprint is greater than the available space and/or shape at one of the one or more candidate locations.

27. The non-transitory computer-readable storage medium of claim 23, the operations further comprising determining whether one or more of the plurality of components of the proposed configuration are present or proposed at particular locations corresponding to the one or more candidate locations, wherein the at least one component omitted from the alternative configuration corresponds to at least one the one or more components of the proposed configuration that are present or proposed at the particular locations.

28. The non-transitory computer-readable storage medium of claim 23, the operations further comprising at least one of:

generating schematic drawings for each configuration of the liquefaction facility;

determining relationship information for each configuration of the liquefaction facility, wherein the relationship information is representative of relationships between components of the liquefaction facility for each configuration of the liquefaction facility, and wherein the relationship information is included in the report;

calculating resource utilizations for each configuration of the liquefaction facility;

ranking the configurations of the liquefaction facility according to a composite of one or more ranking parameters, wherein the report comprises at least one of the schematic drawings, the relationship information, the information representative of the resource utilizations, and the rankings; and

providing an interactive graphical user interface configured to receive inputs from a user, wherein the inputs modify at least one configuration of the liquefaction facility.

32. The non-transitory computer-readable storage medium of claim 23, the operations further comprising identifying one or more additional candidate locations in response to a determination that production of the resources by at least one of the one or more facilities cannot be increased, wherein each of the one or more additional candidate locations correspond to locations where the identified resources are accessible, and wherein facilities that provide the identified resources to the one or more additional candidate locations can increase production of the identified resources to produce additional amounts of the resources for use by the liquefaction facility to produce the LNG and/or LIN.