Chevron U.s.a. Inc.

Joshua Allen Thompson

Dan Xie

Stacey Ian Zones

Joel E Schmidt

Daniel Chinn

Tracy Margaret Davis

Howard Steven Lacheen

Russell Evan Cooper

Cedrick Mahieux

Evan Shigeto Hatakeyama

Hua-Min Huang

Ryan Oliver Owen

Christine Marie Long

Jinhua Bai

The present invention is directed to a method for removing elemental mercury from liquid natural gas comprising changing the stabilizer column operating conditions to beneficially transfer mercury from the stabilized condensate phase to the overhead gas phase, where it may be compressed and recycled with the gas going to the existing feed gas mercury removal units.

Method of reducing mercury in stabilized condensate

The present invention is directed to the removal of mercury in a gas dehydration process using thermally table chemical additives. In the process a complexing agent is added to a recirculated glycol solvent as part of the glycol solution feed to the dehydration liquid contactor and recirculated continuously with the glycol solvent. The complexing agent selectively reacts with mercury in the wet natural gas to remove the mercury from the dry natural gas product.

Removal of mercury in a gas dehydration process using thermally stable chemical additives

The present disclosure is directed to processes for the selective separation of carbon dioxide (CO) from multi-component feedstreams containing CO. The processes use a potassium-form MER framework type zeolite having a stick-like morphology. The potassium is present in the zeolite as Kin extra-framework locations, and the zeolite is essentially free of an extra-framework cation other than potassium.

Potassium-merlinoite zeolite, its synthesis and use

The present invention, and embodiments thereof, provide a process to separate ethylene products from impurities such as nitrogen, hydrogen, ethane, propane and isobutane without the need for distillation processes.

Ethylene separations using a small pore zeolite with CDO framework

The present invention and embodiments thereof provide a process to separate ethylene products from impurities such as nitrogen, hydrogen, ethane, propane and isobutane without the need for distillation processes.

Ethylene separations using small pore zeolite SSZ-45

The present invention describes a process to separate ethylene products from impurities such as nitrogen, hydrogen, ethane, propane and isobutane without the need for distillation processes.

Ethylene separations using small pore zeolites containing double-six rings and cages

Copper (II)-exchanged small-pore zeolites for improved ethylene separation over ethane

A method for removing acid gas from feed gas, comprising: alternating input of feed gas between beds of adsorbent particles that comprise zeolite SSZ-98 or SSZ-105; wherein gas contacts one of the beds during an adsorption and tail gas is vented from another bed by desorption; wherein a product gas containing no greater than about 2 Mol % carbon dioxide is produced, and methane and ethane are recovered. A method for removing acid gas, wherein the product gas contains 1 wppm HS or less. A process for removing acid gas from feed gas, comprising adjusting selectivity of an adsorbent by changing a substitution of ERI phase with LEV phase in an intergrown molecular sieve. A process for removing acid gas from a feed gas, comprising: contacting a feed gas with adsorbent comprising a molecular sieve having a defined intergrowth of an ERI phase and a LEV phase.

Removal of acid gas from a feed gas stream using small pore zeolites containing double-six rings and cages

We provide a method for removing contaminants from a gas, comprising: alternating input of the gas between two or more beds of adsorbent particles that comprise zeolite SSZ-36, zeolite SSZ-39, or zeolite SSZ-45; wherein the gas contacts one of the beds during an adsorption and a tail gas is simultaneously vented from another of the beds by desorption; wherein a contacting pressure is from about 345 kPa to about 6895 kPa and produces a product gas containing no greater than about 2 mol % carbon dioxide, at least about 10 wppm water, at least about 65 mol % of methane recovered from the feed gas, and at least about 25 mol % of ethane recovered from the feed gas; and wherein the tail gas is vented from the feed end of the beds. We also provide a method for removing a contaminant from a gas, wherein the gas contains hydrogen sulfide.

Removal of contaminants from gas using zeolite SSZ-36, zeolite SSZ-39, or zeolite SSZ-45

A process for removal of mercury in a gas dehydration system comprising (a) adding a complexing agent to a recirculated glycol solvent as part of the glycol solution feed prior to or at the dehydration liquid contactor and recirculating continuously with the glycol solvent, (b) selectively reacting the complexing agent with mercury in the wet natural gas to remove the mercury from the dry natural gas product, (c) and feeding the rich glycol with the complexing agent to a regenerator and continuously regenerating.

Process, method and system for removal of mercury in a gas dehydration process

Disclosed are methods for removing acid gas from a feed stream of natural gas including acid gas, methane and ethane. The methods include alternating input of the feed stream between at least two beds of adsorbent particles comprising zeolite SSZ-13 such that the feed stream contacts one of the at least two beds at a given time in an adsorption step and a tail gas stream is simultaneously vented from another of the at least two beds in a desorption step. The contact occurs at a feed pressure of from about 50 to about 1000 psia for a sufficient period of time to preferentially adsorb acid gas from the feed stream. A product gas stream is produced containing no greater than about 2 mol % carbon dioxide and at least about 65 mol % of methane recovered from the feed stream and at least about 25 mol % of ethane recovered from the feed stream. The feed stream is input at a feed end of each bed. The product gas stream is removed from a product end of each bed. The tail gas stream is vented from the feed end of each bed. The methods require lower vacuum power consumption and allow improved hydrocarbon recoveries compared with known methods.

Process for gas separations using zeolite SSZ-13

This disclosure relates generally to the selective separation of carbon dioxide (CO) from multi-component gas streams containing COutilizing zeolite SSZ-45 as an adsorbent.

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Martinez, CA, United States of America

Joshua Allen Thompson