Exxonmobil Upstream Research Company

Exxonmobil Chemical Patents Inc.

Exxon Production Research Company

Solid Carbon Products, LLC

Other

Exxon Research and Engineering Company

Exxonmobil Research and Engineering Company

Exxonmobil Technology and Engineering Company

Robert D Denton

Richard Alan Huntington

Dallas B Noyes

Ananda K Nagavarapu

Jaime A Valencia

Frank Hershkowitz

Paul F Keusenkothen

Russell John Koveal

Terry A Ring

Gary David Mohr

P Scott Northrop

Russell H Oelfke

David W Maher

Robert A Johnson

Bruce T Kelley

Franklin F Mittricker

Sulabh K Dhanuka

Nicholas F Urbanski

Fritz Pierre, Jr

Bennett D Marshall

J Tim Cullinane

Parag A Gupte

Russell J Koveal

James Richardson Lattner

Larry Lee Iaccino

Jean Willem Beeckman

Timothy Andrew Barckholtz

Moses Minta

Charles John Mart

Loren K Starcher

Himanshu Gupta

Eugene R Thomas

Tracy Alan Fowler

Edward J Grave

Shwetha Ramkumar

Rustom Merwan Billimoria

Donald J Victory

Jason W Lachance

Gary F Teletzke

Charles W Degeorge

Dennis M O'Dea

O Angus Sites

Ian J Laurenzi

Michael W Lin

Ashish B Mhadeshwar

Matthew S Mettler

Jasper L Dickson

Wayne S Pon

Garth M Norman

Lalit K Bohra

Patrick D McMahon

Brandon Cassimere

Allen E Brimm

Richard C Haut

James A Valencia

Patrick D Mcmahon

Dennis M O'dea

A method of designing, constructing, and operating a hydrocarbon gas treatment plant is disclosed. A target hydrocarbon production range for a hydrocarbon gas meeting a required product specification is established. A cryogenic distillation column is designed and constructed with a vapor capacity to meet the target hydrocarbon production range. A variable feed refrigeration system is incorporated to cool an inlet feed of the hydrocarbon gas. The variable feed refrigeration system is designed to handle the target hydrocarbon production range and a wide range of contaminant concentrations in the inlet feed. A variable bottoms heating system is incorporated to handle heating duties associated with the wide range of contaminant concentrations in the inlet feed. A variable bottoms pumping system is incorporated to handle liquid flows associated with the wide range of contaminant concentrations in the inlet feed.

Treatment plant for hydrocarbon gas having variable contaminant levels

Provided are apparatus and systems for performing a swing adsorption process. This swing adsorption process may involve passing an input feed stream through two swing adsorption systems as a purge stream to remove contaminants, such as water, from the respective adsorbent bed units. The wet purge product stream is passed to a solvent based gas treating system, which forms a wet hydrocarbon rich stream and a wet acid gas stream. Then, the wet hydrocarbon rich stream and the wet acid gas stream are passed through one of the respective swing adsorption systems to remove some of the moisture from the respective wet streams.

Apparatus and system for swing adsorption processes related thereto

Described herein are systems and processes to produce liquefied natural gas (LNG) using liquefied nitrogen (LIN) as the refrigerant. Greenhouse gas contaminants are removed from the LIN using a greenhouse gas removal unit. The LNG is compressed prior to being cooled by the LIN.

Increasing efficiency in an LNG production system by pre-cooling a natural gas feed stream

A method of separating impurities from a natural gas stream. The natural gas stream is cooled through heat exchange with one or more process streams to produce a chilled gas stream, which is contacted with a lean solvent stream in a contactor to separate hydrogen sulfide (HS) from the chilled gas stream, thereby producing a rich solvent stream and a partially-treated gas stream. Carbon dioxide (CO) and HS are separated from the partially-treated gas stream in a membrane separation system, thereby creating a fully-treated gas stream and a permeate gas stream, the permeate gas stream being comprised primarily of HS and CO, and the fully-treated gas stream being comprised primarily of natural gas. The fully-treated gas stream and the permeate gas stream are at a lower temperature than the partially-treated gas stream. The fully-treated gas stream and the permeate gas stream comprise the one or more process streams.

Integration of cold solvent and acid gas removal

A system for conditioning a sour gas feed stream for a cryogenic distillation tower. A dehydration unit separates the sour gas feed stream into a first stream including water and a feed stream. A sequential cooling assembly is coupled to both the dehydration unit and the cryogenic distillation tower. The sequential cooling assembly includes: a first stage that separates the feed stream into a partially cooled feed stream and a second stream including acid gas; a second stage that cools the partially cooled feed stream into a cooled feed stream and a third stream including acid gas; and a cooled feed stream header coupled to a cryogenic distillation tower feed inlet. The first stage, the second stage, or both send at least one of the second and third streams to a bottom section of the cryogenic distillation tower.

Reducing refrigeration and dehydration load for a feed stream entering a cryogenic distillation process

Described herein are systems and processes to produce liquefied natural gas (LNG) using liquefied nitrogen (LIN) as the refrigerant. Greenhouse gas contaminants are removed from the LIN using a greenhouse gas removal unit.

Liquefied natural gas production system and method with greenhouse gas removal

Methods and systems for treating a compressed gas stream. The compressed gas stream is cooled and liquids are removed therefrom to form a dry gas stream, which is chilled in a first heat exchanger. Liquids are separated therefrom, thereby producing a cold vapor stream and a liquids stream. A first part of the cold vapor stream is expanded to produce a cold two-phase fluid stream, and a second part of the cold vapor stream is cooled to form a cooled reflux stream. Various streams are fed into a separation column to produce a cold fuel gas stream and a low temperature liquids stream. The second part of the cold vapor stream is cooled by the cold fuel gas stream, which becomes a warmed fuel gas stream that is compressed and used with the low-temperature liquids stream to chill the dry gas stream and to cool the compressed gas stream.

Methods and systems for treating fuel gas

Processes for forming and sequestering COclathrates in a marine environment are disclosed.

Sequestration of COusing clathrates

Methods and systems are provided for forming carbon allotropes. An exemplary method includes forming a feedstock that includes at least about 10 mol % oxygen, at least about 10 mol % carbon, and at least about 20 mol % hydrogen. Carbon allotropes are formed from the feedstock in a reactor in a Bosch reaction at a temperature of at least about 500&#xb0; C., and the carbon allotropes are separated from a reactor effluent stream.

Feedstocks for forming carbon allotropes

Systems and a method for removing carbon nanotubes from a continuous reactor effluent are provided herein. The method includes flowing the continuous reactor effluent through a separation vessel, separating carbon nanotubes from the continuous reactor effluent in the separation vessel, and generating a stream including gaseous components from the continuous reactor effluent.

Removing carbon nanotubes from a continuous reactor effluent

Disclosed techniques include a method of obtaining an enhanced oil recovery fluid from a hydrocarbon reservoir, comprising producing a hydrocarbon stream from the hydrocarbon reservoir, separating an associated gas stream from the hydrocarbon stream, and condensing at least a portion of the associated gas stream to obtain an enriched hydrocarbon fluid suitable for injecting into a liquid layer of the hydrocarbon reservoir to enhance recovery of hydrocarbons from the hydrocarbon reservoir.

Self-sourced reservoir fluid for enhanced oil recovery

The present techniques are directed to a system and method for recovering carbon dioxide (CO). The method includes recovering the COfrom a gas mixture including the COvia a COseparation system. The COseparation system includes a rotating freezer/melter.

Carbon dioxide recovery

Systems and a method are provided for producing an aromatic hydrocarbon and generating electricity from a tail gas stream. The method includes feeding a first stream including a raw natural gas into a reactor. The method includes converting the first stream, at least in part, to a second stream including an aromatic hydrocarbon within the reactor. The method includes separating the second stream into a tail gas stream and a liquid aromatic hydrocarbon stream and combusting at least a portion of the tail gas stream to generate electricity.

Methods and systems for producing liquid hydrocarbons

The present disclosure provides a subwater heat exchanger that includes a duct, first coils, a first impeller and a second impeller. The duct is configured to receive a first fluid. The first coils are inside of the duct and are configured to receive a second fluid that is heated or cooled by the first fluid. The first impeller is inside of the duct that is configured to initiate flow of the first fluid around the first coils. The second impeller is inside of the duct and is substantially in line with the first impeller along a duct lateral axis of the duct.

Subwater heat exchanger

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Bellaire, TX, United States of America

Robert D Denton