ENVIRONMENTALLY-NEUTRAL PROCESSING WITH CONDENSED PHASE CRYOGENIC FLUIDS

• US 20090044840A1
• Filed: 08/15/2007
• Published: 02/19/2009
• Est. Priority Date: 08/15/2007
• Status: Active Grant

• Current Assignee: Ronald De Strulle
• Original Assignee: Ronald De Strulle
• Inventors: de Strulle, Ronald
• Granted Patent: US 7,604,732 B2
• Time in Patent Office: Days
• US Class Current: 134/105
• CPC Class Codes: B01D 17/042 by changing the temperature
• CPC Class Codes: B08B 7/0014 by incorporation in a layer which is removed with the contaminants
• CPC Class Codes: B08B 7/0092 by cooling
• CPC Class Codes: B09B 1/004 Covering of dumping sites
• CPC Class Codes: C02F 1/22 by freezing
• CPC Class Codes: C02F 1/40 Devices for separating or removing fatty or oily substances or similar floating material cleaning or keeping clear the surface of open water from oil or like materials E02B15/04; devices in sewers for separating liquid or solid substances from sewage E03F5/14, e.g. for use in drains leading to the sewer E03F5/16
• CPC Class Codes: C02F 1/681 by addition of solid materials for removing an oily layer on water
• CPC Class Codes: C02F 2101/32 Hydrocarbons, e.g. oil
• CPC Class Codes: C02F 2103/08 Seawater, e.g. for desalination
• CPC Class Codes: C02F 2209/008 comprising telecommunication features, e.g. modems or antennas
• CPC Class Codes: E01H 12/006 Oil removal
• CPC Class Codes: E02B 15/043 Devices or methods for removing oil by means of freezing
• CPC Class Codes: Y02A 20/124 Water desalination
• CPC Class Codes: Y02A 20/204 Keeping clear the surface of open water from oil spills
• CPC Class Codes: Y02W 30/30 Landfill technologies aiming to mitigate methane emissions
• CPC Class Codes: Y10S 210/923 using mechanical means, e.g. skimmers, pump

Abstract

Systems, methods and apparatus are provided for utilizing a substantially condensed phase cryogenic fluid for the purpose of remediation and retrieval of, e.g., spilled crude oil and other “oil spill”-related products from marine/aquatic and terrestrial environments. In some implementations, systems and apparatus are provided for applying a substantially condensed phase cryogenic fluid to a volume of spilled oil, and further having structure for collecting the spilled oil. Some implementations are environmentally-neutral. Substances other than oil may be remediated as well.

Claims

1. A system for remediating an immiscible pollutant comprising:

a cryogenic fluid source adapted for providing a condensed-phase cryogenic fluid;

a cryogenic fluid transport structure coupled to the cryogenic fluid source adapted for transporting the cryogenic fluid;

a low pressure applicator coupled to the cryogenic fluid transport structure adapted for dispensing the cryogenic fluid in a substantially condensed phase;

a collector adapted for capturing at some of the immiscible pollutant after exposure to the cryogenic fluid; and

a storage structure, coupled to the collector, adapted for storing the immiscible pollutant.

2. The system of claim 1 wherein the cryogenic fluid is liquefied nitrogen.

3. The system of claim 1 wherein the cryogenic fluid is liquefied air.

4. The system of claim 1 wherein the cryogenic fluid is liquefied helium.

5. The system of claim 1 wherein the cryogenic fluid source comprises a multistage compressor.

6. The system of claim 1 wherein the cryogenic fluid source comprises a cascade liquefaction system.

7. The system of claim 1 wherein the cryogenic fluid source comprises a pump to pressurize the cryogenic fluid transport structure.

8. The system of claim 1 wherein the cryogenic fluid source comprises a vacuum flask.

9. The system of claim 1 wherein the cryogenic fluid transport structure is vacuum insulated.

10. The system of claim 1 wherein the cryogenic fluid transport structure comprises a valve to control the rate of cryogenic fluid transport to the low pressure applicator.

11. The system of claim 1 wherein the pressure of cryogenic fluid within the cryogenic fluid transport structure is less than about 50 psi.

12. The system of claim 1 wherein the cryogenic fluid transport structure comprises a pressure relief valve.

13. The system of claim 1 wherein the cryogenic fluid transport structure comprises a keepfull.

14. The system of claim 1 wherein the low pressure applicator dispenses the cryogenic fluid at about atmospheric pressure.

15. The system of claim 1 wherein the low pressure applicator comprises a sparger bar.

16. The system of claim 15 wherein the sparger bar is constructed of a sintered metal.

17. The system of claim 16 wherein the metal comprises brass, bronze or stainless steel.

18. The system of claim 15 wherein the sparger bar is constructed of a sintered composite.

19. The system of claim 15 wherein the sparger bar is constructed of a sintered material comprising silicon carbide.

20. The system of claim 15 wherein the mean porosity of the sparger bar is between about 1 micron and 10 microns.

21. The system of claim 1 wherein the low pressure applicator comprises a spray bar comprising at least one nozzle.

22. The system of claim 21 further comprising means for adjusting an aperture size of at least one nozzle.

23. The system of claim 1 wherein the low pressure applicator comprises a drizzle bar comprising at least one hole array.

24. The system of claim 23 wherein the at least one hole array comprises holes having a diameter from about 0.1 millimeters to about 0.5 millimeters.

25. The system of claim 1 comprising:

one or more sensors disposed proximate to the immiscible pollutant adapted to generate one or more data signals;

a controller coupled to the sensors, cryogenic fluid source and cryogenic fluid transport structure, wherein the controller is adapted to control any of the cryogenic fluid source or cryogenic fluid transport structure in response to the one or more data signals.

26. The system of claim 25 wherein the one or more sensors includes an infrared sensor.

27. The system of claim 25 wherein the one or more sensors includes an optoacoustic sensor.

28. The system of claim 25 wherein the one or more sensors includes a temperature sensor.

29. The system of claim 25 wherein the controller is adapted to adjust the fluid flow rate through the cryogenic fluid transport structure.