Exxonmobil Research and Engineering Company

Exxonmobil Chemical Patents Inc.

Georgia Tech Research Corporation

Exxonmobil Technology and Engineering Company

Dhaval Ajit Bhandari

Benjamin A McCool

Federico Barrai

Randall David Partridge

Brian Michael Weiss

Changmin Chun

Ryan Paul Lively

Yogesh V Joshi

Melinda Jue

Yao Ma

James Richardson Lattner

Frank Hershkowitz

William John Koros

ChangMin Chun

Quanchang Li

John Slocum Coleman

Mayank Shekhar

Carla S Pereira

Huaxing Zhou

Roberto Garcia

M G Finn

Sophie Liu

Elizabeth G Mahoney

Joshua W Allen

Nicholas Bruno

Craig McKay

Kirstie Thompson

Ronita Mathias

Breanne Hamlett

Benjamin A Mccool

Disclosed herein are carbon molecular sieves and methods of making the same through the pyrolysis of a polymer precursor in the presence of a reactive gas stream including a hydrogen source.

Reactive inhibition of pore structure collapse during pyrolytic formation of carbon molecular sieves

A molecular separation method can include: passing a deasphalted oil stream through a reactor containing an active substrate, wherein the catalytic active substrate adsorbs heteroatom species from the deasphalted oil stream and produces a pretreated hydrocarbon feed stream essentially free of 4+ ring aromatic molecules (ARC 4+ species), metal species, and heteroatom species; and chromatographically separating with a simulated moving bed apparatus or a true moving bed apparatus (SMB/TMB) the pretreated hydrocarbon feed stream into a saturate fraction and an aromatics fraction.

Molecular separations process

Disclosed are methods and apparatuses for separating a wax product from a hydrocarbon feedstream by a) conducting a hydrocarbon feedstream to a membrane separation zone; b) retrieving at least one retentate product stream from the first side of the membrane element; c) retrieving at least one permeate product stream having a wax phase and an oil phase from a second side of the membrane element, wherein a pour point of the wax phase of the permeate product stream is higher than a pour point of the oil phase of permeate product stream; and d) separating a wax product from the wax phase of the permeate product stream.

Methods for separating wax products from hydrocarbon feedstreams

Methods and systems are provided herein utilizing a membrane cascade to separate a hydrocarbon feed into boiling point fractions. Also provided herein are methods for selecting membranes for said cascades to achieve the desired boiling point fraction separation.

Boiling free fractionation of hydrocarbon streams utilizing a membrane cascade

The invention relates to hydrocarbon conversion, to equipment and materials useful for hydrocarbon conversion, and to processes for carrying out hydrocarbon conversion, e.g., hydrocarbon pyrolysis processes. The hydrocarbon conversion is carried out in a reactor which includes at least one channeled member that comprises refractory and has an open frontal area&#x2264;55%. The refractory can include non-oxide ceramic.

Hydrocarbon conversion

The present invention is directed to methods of fabricating novel cross-linked membranes and to cross-linked membranes produced by the disclosed methods. Specifically, methods of fabricating cross-linked membranes according to the present invention may comprise direct crosslinking, crosslinking by addition of a small molecule, interfacial crosslinking of free-standing film, and interfacial crosslinking on a solid support.

Functionalized membranes and methods of production thereof

Systems and methods are provided for performing on-board separation of a fuel into a higher octane fuel fraction and a lower octane fuel fraction using a membrane under osmosis conditions. By performing the separation under osmosis conditions, the feed for separation can be exposed to the membrane without requiring prior heating. This can avoid the need for having a separate heat exchanger system for heating the feed to the membrane to a desired temperature range. Additionally or alternately, the permeate from the membrane separation can be at a pressure of roughly 100 kPa-a or higher. This can avoid the need for having an eductor to provide a pressure below 100 kPa-a for the permeate side of the membrane. The fuel fractions produced during the membrane separation can then be used as fuel in a dual-fuel spark ignition engine.

On-board separation process

Methods of transforming a hydrocarbon feedstream into an aromatization product in a multi-stage reverse flow reactor (RFR) apparatus are disclosed. The methods include at least two reaction stages in series, at least one being a pyrolysis stage and at least another being a catalytic aromatization stage. Using a highly saturated hydrocarbon feedstream the pyrolysis stage focuses on desaturation, while the catalytic aromatization stage focuses on aromatization. The catalytic aromatization stage contains a aromatization catalyst that can include substantially no magnesium, scandium, yttrium, titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, rhenium, iron, ruthenium, cobalt, rhodium, nickel, palladium, platinum, copper, silver, gold, gallium, indium, tin, lanthanides, or actinides, or, in some cases, substantially no added active metals at all. The aromatization product can contain at least 35 mol % aromatic hydrocarbons, based on a total amount of hydrogen and hydrocarbons in the aromatized hydrocarbon product.

Reactor apparatus for non-oxidative hydrocarbon conversion to aromatics, methods of using same, and products made using same

The invention relates to hydrocarbon pyrolysis, to equipment and materials useful for hydrocarbon pyrolysis, to processes for carrying out hydrocarbon pyrolysis, and to the use of hydrocarbon pyrolysis for, e.g., hydrocarbon gas upgrading. The pyrolysis is carried out in a reactor which includes at least one thermal mass having an open frontal area &#x2264;55%.

Hydrocarbon pyrolysis

This disclosure relates to processes, compositions, and systems useful for the oxydehydrogenation of alkanes to form olefins (e.g., for the conversion of ethane to ethylene). The processes use an oxygen transfer agent and may be carried out in any suitable reactor, including a reverse flow reactor, a circulating fluid bed reactor, or a cyclic co-flow reactor.

Process for generation of olefins

The invention relates to hydrocarbon conversion, to equipment and materials useful for hydrocarbon conversion, and to processes for carrying out hydrocarbon conversion, e.g., hydrocarbon pyrolysis processes. The hydrocarbon conversion is carried out in a reactor which includes at least one channeled member that comprises refractory and has an open frontal area &#x2264;55%. The refractory can include non-oxide ceramic.

Methods for fabricating a membrane with an organosilica material which is a polymer comprising independent units of Formula [ZZSiCH](I), wherein each Zrepresents a hydroxyl group, a C-Calkoxy group or an oxygen atom bonded to a silicon atom of another unit or an active site on the support and each Zrepresents a hydroxyl group, a C-Calkoxy group, a C-Calkyl group, an oxygen atom bonded to a silicon atom of another unit or an active site on the support are provided. Methods of removing a contaminant from a hydrocarbon stream are also provided.

Membrane fabrication methods using organosilica materials and uses thereof

The present invention relates to new fibers, new processes of using said fibers, and new sheath dope compositions for multi-layer spinning processes. The fibers comprise a porous core and a sheath surrounding said porous core. The fibers may be useful in, for example, processes for removing low level contaminants like sulfur compounds from a gas stream like natural gas.

Growing community of inventors

Bridgewater, NJ, United States of America

Dhaval Ajit Bhandari