Exxonmobil Research and Engineering Company

W. R. Grace Co.-conn.

Other

Exxonmobil Engineering & Technology Company

Toyota Jidosha Kabushiki Kaisha

Exxonmobil Chemical Patents Inc.

Exxonmobil Upstream Research Company

Exxonmobil Technology and Engineering Company

Bhupender S Minhas

Mohsen Shahmirzadi Yeganeh

Ian A Cody

Robert G Tinger

Dennis G Peiffer

Walter Weissman

Yoshihiro Iwashita

Takanori Ueda

Satoshi Yamazaki

Lloyd Steven White

Kazuhiro Akihama

Tahmid I Mizan

Chong-Jhoo Wang

I-Fan Wang

Sufang Zhao

Wai Kit Cheng

Marcus L H Van Nuland

Thomas F Degnan

Guido Sartori

Robert James Saxton

Randall David Partridge

Sebastian Carmen Reyes

Charanjit Singh Paur

Tomas R Melli

Erick D Gamas-Castellanos

Richard W Flynn

Don E Stratton

Jeevan S Abichandani

Harry William Deckman

David Lawrence Stern

Jeffrey S Beck

Ramesh Gupta

Simon Christopher Weston

Takeshi Okumura

Mobae Afeworki

Jeevan Sahib Abichandani

Hans Thomann

Hilda B Vroman

David Craig Dalrymple

Frederick Y Lo

Todd E Detjen

Hugo S Caram

John Timothy Cullinane

Ramon A Strauss

Masahiro Taki

William A Feehley

Manoj Kumar Chaudhury

Meghan Nines

David W Staubs

Michael R Chuba

Donald E Stratton

John H Hollenbach

Oluwagbogo Adebayo-Ige

Michael Mayers

Manoj K Chaudhury

Selective removal of non-aromatic hydrocarbons from a xylene isomerization process for para-xylene production is accomplished using a membrane unit positioned within a xylene recovery loop. The membrane unit may include a one-stage or multi-stage (e.g., two-stage) membrane system and may be configured to separate a membrane unit product stream from a non-aromatics rich stream, which can be removed from the xylene recovery loop. The membrane unit may have a xylene permeance of about 60 gm/m2/hr/psi and a xylene to non-aromatic permeance ratio of about 15.

Non-aromatic compound removal systems for para-xylene production

A process and system for separating paraxylene from a mixture of paraxylene, metaxylene, orthoxylene, and ethylbenzene in a simulated moving bed apparatus using a membrane to separate non-aromatics from a desorbent stream. The lower nonaromatics content in the desorbent improves paraxylene product purity, increases paraxylene production at the same desorbent rate, reduces the desorbent rate, and/or reduces energy consumption in the product tower.

Xylene separation processes using a membrane separator

A heat transfer fluid can be used as part of a multi-phase adsorption environment to allow for improved separations of gas components using a solid adsorbent. The heat transfer fluid can reduce or minimize the temperature increase of the solid adsorbent that occurs during an adsorption cycle. Reducing or minimizing such a temperature increase can enhance the working capacity for an adsorbent and/or enable the use of adsorbents that are not practical for commercial scale adsorption using conventional adsorption methods. The multi-phase adsorption environment can correspond to a trickle bed environment, a slurry environment, or another convenient environment where at least a partial liquid phase of a heat transfer fluid is present during gas adsorption by a solid adsorbent.

Cyclic thermal swing adsorption with direct heat transfer

Methods are provided for removing fine particles from crude oils extracted from mined oil sands using a non-aqueous extraction solvent. A bitumen derived from non-aqueous extraction of oil from oil sands can undergo optional physical separation to remove larger particles and then processed using electrostatic filtration to remove particle fines. This can allow for production of a bitumen product from a non-aqueous extraction process that has a sufficiently low particle content to be suitable for pipeline transport.

Electrostatic filtration of fine solids from bitumen

A process for generating refrigeration, electricity or work utilizing a sorption system is disclosed. The sorption system includes a sorbent material and a fluid, in which the sorbent material and fluid in combination have a pressure index of at least 1.2.

System using unutilized heat for cooling and/or power generation

A protected solid adsorbent is disclosed that includes a solid adsorbent substrate and a surface layer at least partially coating the solid adsorbent substrate, the surface layer being generally permeable to an active agent. Additionally, a process for protecting a solid adsorbent and an adsorption system that includes a vessel containing the protected solid adsorbent is provided.

Method of protecting a solid adsorbent and a protected solid adsorbent

A system for isolating a greenhouse gas from an exhaust gas includes a vessel having an inlet to receive an exhaust gas, and an outlet to discharge a process stream, an adsorbent contained in the vessel to selectively adsorb the greenhouse gas from the exhaust gas under suitable conditions, and a heat source to heat the adsorbent and desorb the adsorbed greenhouse gas therefrom to produce a process stream of greenhouse gas for release through the outlet.

Recovery of greenhouse gas and pressurization for transport

A method of utilizing waste heat to create a pressurized working fluid is disclosed. The method includes providing a vessel containing a sorbent system, introducing a feed of waste heat to a heat exchanger external to the vessel to heat a feed of working fluid, introducing the heated working fluid from the heat exchanger to the vessel to obtain pressurized working fluid, and directing the pressurized working fluid from the vessel to a work component. The method is particularly suited to make use of waste heat an industrial process, (e.g., a chemical processing or petrochemical refining operation) in which low grade heat source(s) are used to drive the sorption system.

Methods of utilizing waste heat for creating a pressurized working fluid

The present application provides a protected solid adsorbent that includes a solid adsorbent substrate and a surface layer at least partially coating the solid adsorbent substrate, the surface layer being generally permeable to an active agent. Additionally, a process for protecting a solid adsorbent and an adsorption system that includes a vessel containing the protected solid adsorbent is provided.

Methods, apparatus, and systems for removing contaminant in a fluid (e.g., chemical and petrochemical gas streams) using nanostructures of a sorbent material coated on plates such as a silicon wafer. A plurality of such coated plates can be assembled to form a sorption structure having channels between the plates. When a fluid containing the contaminant is directed through the channels, the contaminant is adsorbed by the nanostructures of the sorbent material.

Method and apparatus for removing contaminant from fluid

A sorption system is disclosed that includes a sorbent material and a fluid, in which the sorbent material and fluid in combination have a pressure index of at least 1.2.

A process for removing polar components from a process stream in a refinery process without cooling the process stream. The process stream is fed to a first adsorber unit to remove contaminants containing sulfur at substantially the same elevated temperature by exposing the process stream to a metal oxide and/or a mixed metal oxide to remove the sulfur containing contaminants and produce a metal sulfide and a desulfurized process stream. The metal sulfide may be regenerated by exposing it to a stream of oxygen and the desulfurized process stream exposed to the regenerated metal/mixed metal oxide to remove moisture from the stream. The stream is then processed within a second adsorber unit to remove nitrogen containing contaminants at substantially the same elevated temperature by exposing the stream to a molecular sieve and/or zeolite.

Process for removing polar components from a process stream to prevent heat loss

Growing community of inventors

Bridgewater, NJ, United States of America

Bhupender S Minhas