Deactivation methods for active components from gas phase polyolefin polymerization processes
AssigneeExxonMobil Chemical Patents Inc.
InventorsChi-I Kuo, Bruce J. Savatsky, Micah A. McClure, Kevin M. Ferreira, Charles J. Harlan, Valerie H. Markham
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Abstract
Provided herein are methods and systems for at least partially deactivating at least one component of a reactor effluent from gas phase polyolefin polymerization processes utilizing at least one glycol.
Claims23
A method of deactivating an active component of a gas phase polyolefin polymerization process comprising the steps of:
- collecting the active component of the gas phase polyolefin polymerization process;
- providing mineral oil and at least one liquid glycol to form a glycol-mineral oil system, wherein the glycol-mineral oil system is a liquid-liquid phase solution having two phases separated into a mineral oil liquid phase and a glycol liquid phase;
- and
- contacting the active component and the glycol-mineral oil system, wherein the active component is at least partially deactivated in the glycol liquid phase to form a deactivated discharge without mixing of the liquid phases together.
A method of at least partially deactivating at least one active component of a gas phase polyethylene process comprising the steps of:
- collecting at the least one active component of the gas phase polyolefin polymerization process;
- providing mineral oil and a liquid glycol to form a liquid-liquid phase system, wherein the liquid-liquid phase system has two phases separated into glycol liquid phase and a mineral oil liquid phase;
- and
- adding the at least one active component to the liquid-liquid phase system, wherein the at least one active component is deactivated in the glycol liquid phase to form a deactivated discharge without mixing of the liquid phases together.
A method of deactivating an active component of a gas phase polyolefin polymerization process comprising the steps of:
- collecting at least one active component of the gas phase polyolefin polymerization process;
- and
- contacting the active component with a liquid glycol in a glycol-mineral oil system, wherein the glycol-mineral oil system comprises a mineral oil liquid phase and a glycol liquid phase, and wherein the active component is deactivated in the liquid glycol liquid phase to form a deactivated discharge without mixing of the liquid phases together and wherein the liquid glycol is substantially free of mineral oil.
Dependencies are inferred from the claim text.