Integrated hydrocarbons feed stripper and method of using the same
First Claim
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1. A method for removing a volatile catalyst poison from a liquid hydrocarbon feed to a polymerization process, the method comprising the steps of:
- a) feeding a fresh liquid hydrocarbon to a stripper column;
b) providing a process vent from a polymerization process;
c) recycling the process vent in a vent recovery system to form a recycle gas;
d) feeding a first portion of the recycle gas to the stripper column;
e) removing a stripper vent gas and a stripper column tail from the stripper column; and
f) feeding a degassed liquid hydrocarbon comprising the stripper column tail to the polymerization process.
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Abstract
Systems and methods for removing a volatile catalyst poison from a liquid hydrocarbon are provided. In one embodiment, a process vent (106) can be introduced to a vent recovery system (108) to provide a recycle gas (110). A first portion of the recycle gas (112) and a liquid hydrocarbon (102) can be introduced to a stripper column (104) to provide a stripper vent gas (114) and a degassed liquid hydrocarbon (116) that can be introduced to a polymerization process.
33 Citations
43 Claims
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1. A method for removing a volatile catalyst poison from a liquid hydrocarbon feed to a polymerization process, the method comprising the steps of:
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a) feeding a fresh liquid hydrocarbon to a stripper column; b) providing a process vent from a polymerization process; c) recycling the process vent in a vent recovery system to form a recycle gas; d) feeding a first portion of the recycle gas to the stripper column; e) removing a stripper vent gas and a stripper column tail from the stripper column; and f) feeding a degassed liquid hydrocarbon comprising the stripper column tail to the polymerization process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 23, 24, 25, 26, 27, 28)
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21. A method for removing volatile catalyst poisons from at least two liquid hydrocarbon feeds to a polymerization process, the method comprising the steps of:
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a) feeding at least two independent fresh liquid hydrocarbons to a stripper column; b) feeding a stripping gas to a lower portion of the stripper column; d) removing a stripper vent gas and a stripper column tail from the stripper column; and e) feeding the stripper column tail to the polymerization process. - View Dependent Claims (22)
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29. A system for removing a volatile catalyst poison from a liquid hydrocarbon feed to a polymerization process, the system comprising:
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a) a process vent originating from a polymerization process; b) a vent recovery system in fluid communication with the process vent, wherein the vent recovery system compresses the process vent to form a recycle gas; c) a stripper column, wherein the stripper column receives a first portion of the recycle gas and a fresh liquid hydrocarbon, and wherein a stripper column tail and a stripper vent gas exit the stripper column; and d) a liquid feed pump in fluid communication with the stripper column, wherein the liquid feed pump pressurizes a degassed liquid hydrocarbon comprising the stripper column tail. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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Specification