Integrated hydrocarbons feed stripper and method of using the same
AssigneeUnivation Technologies, LLC
InventorsRandall L. Force, James L. Swecker, Kevin D. Roy
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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.
Claims43
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.
A method for removing volatile catalyst poisons from at least two liquid hydrocarbon feeds to a polymerization process, the method comprising the steps of:
- 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.
A system for removing a volatile catalyst poison from a liquid hydrocarbon feed to a polymerization process, the system comprising:
- 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.
Dependencies are inferred from the claim text.