Exxon Research and Engineering Company

Exxonmobil Research and Engineering Company

Exxonmobil Upstream Research Company

Exxonmobil Technology and Engineering Company

Gm Global Technolgoy Operations, Inc.

Exxonmobile Research and Engineering Company

Toyota Jidosha Kabushiki Kaisha

Ramesh Gupta

Edward Stanley Ellis

David C Dankworth

Hugo S Caram

Dennis G Peiffer

Richard S Polizzotti

Barbara Carstensen

Paul Matthew Spiecker

Norman M Pokutylowicz

James J Schorfheide

Simon Christopher Weston

William Ernest Lewis

Jeffrey William Frederick

Hans Thomann

Sumathy Raman

Henry Jung

Michael John Luton

Salvatore Joseph Rossetti

Martin G Bienstock

Harry William Deckman

Larry Lee Iaccino

Scott Jeffrey Weigel

Narasimhan Sundaram

Franklin F Mittricker

Pavlin B Entchev

Craig S Gittleman

Loren K Starcher

Andrzej Mariusz Malek

Robert M Koros

P Matthew Spiecker

Gerald E Markley

Dennis D Fleming

Dimitrios M Tsangaris

Daniel Paul Leta

Ian A Cody

Robert A Johnson

Andrzej Malek

Walter Weissman

Mobae Afeworki

Mohsen Shahmirzadi Yeganeh

Bhupender S Minhas

Michele Sue Touvelle

Hilda B Vroman

Jonathan Martin McConnachie

Peter I Ravikovitch

Anjaneya Sarma Kovvali

Brenda Anne Raich

Yoshihiro Iwashita

Eric Bart Sirota

William Joseph Novak

Ramesh R Hemrajani

Thomas N Anderson

Steven Webster Levine

Larry L Iaccino

Russell D Sellen

Peter W Jacobs

David Lee Vannauker

Louis A Curcio

Jeffrey L Kaufman

Manoj Kumar Chaudhury

Meghan Nines

Jeffrey M Dysard

Zhigou Hou

James Philip Bailor

Amrit Jalan

Richard D Lenz

Manoj K Chaudhury

Systems and methods are provided for conversion of methane and/or other hydrocarbons to hydrogen by pyrolysis while reducing or minimizing production of carbon oxides. The conversion of hydrocarbons to hydrogen is performed in one or more pyrolysis or conversion reactors that contain a plurality of sequential fluidized beds. The fluidized beds are arranged so that the coke particles forming the fluidized bed move in a counter-current direction relative to the gas phase flow of feed (e.g., methane) and/or product (H) in the fluidized beds. By using a plurality of sequential fluidized beds, the heat transfer and management benefits of fluidized beds can be realized while also at least partially achieving the improved reaction rates that are associated with a plug flow or moving bed reactor.

Methane pyrolysis using stacked fluidized beds

Systems and methods are provided for production of carbon nanotubes and Husing a reaction system configuration that is suitable for large scale production. In the reaction system, a substantial portion of the heat for the reaction can be provided by using a heated gas stream. Optionally, the heated gas stream can correspond to a heated Hgas stream. By using a heated gas stream, when the catalyst precursors for the floating catalyst-chemical vapor deposition (FC-CVD) type catalyst are added to the gas stream, the gas stream can be at a temperature of 1000&#xb0; C. or more. This can reduce or minimize loss of catalyst precursor material and/or deposition of coke on sidewalls of the reactor. Additionally, a downstream portion of the reactor can include a plurality of flow channels of reduced size that are passed through a heat exchanger environment, such as a shell and tube heat exchanger. This can provide cooling of the gas flow after catalyst formation to allow for carbon nanotube formation, while also reducing the Reynolds number of the flow sufficiently to provide laminar flow within the region where carbon nanotubes are formed.

Reactor for carbon nanotube and nanofiber production

Systems and methods for molten media pyrolysis for the conversion of methane into hydrogen and carbon-containing particles are disclosed. The systems and methods include the introduction of seed particles into the molten media to facilitate the growth of larger, more manageable carbon-containing particles. Additionally or alternatively, the systems and methods can include increasing the residence time of carbon-containing particles within the molten media to facilitate the growth of larger carbon-containing particles.

Systems and processes for molten media pyrolysis

Systems and methods are provided for combined cycle power generation while reducing or mitigating emissions during power generation. Recycled exhaust gas from a power generation combustion reaction can be separated using a swing adsorption process so as to generate a high purity COstream while reducing/minimizing the energy required for the separation and without having to reduce the temperature of the exhaust gas. This can allow for improved energy recovery while also generating high purity streams of carbon dioxide and nitrogen.

Integration of pressure swing adsorption with a power plant for COcapture/utilization and Nproduction

Systems and methods are provided for separating oxygen from air using a sorption/desorption cycle that includes a reduced or minimized difference between the maximum and minimum pressures involved in the sorption/desorption cycle. The reduced or minimized difference in pressures can be achieved in part by using valves that can allow for commercial scale flow rates while avoiding large pressure drops for flows passing through the valves. A rotary wheel adsorbent is an example of a system that can allow for a sorption/desorption cycle with reduced and/or minimized pressure drops across valves associated with the process. Stationary adsorbent beds can also be used in combination with commercially available valves that have reduced and/or minimized pressure drops.

Pressure swing adsorption for oxygen production

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

[object Object]

The disclosure relates to a continuous or semi-continuous, cyclic, countercurrent sorption-desorption method for enhanced control, separation, and/or purification of COgas from one or more sources of a mixture of gases through integrated use of solid monolithic sorbents having a sorption selectivity for the COgas, wherein liquid phase water is added to increase the heat capacity of the mixed gas source(s) in order to achieve a thermal wave moving through the thickness of the sorbent material faster than the COsorption wave.

A gas separation process uses a structured particulate bed of adsorbent coated shapes/particles laid down in the bed in an ordered manner to simulate a monolith by providing longitudinally extensive gas passages by which the gas mixture to be separated can access the adsorbent material along the length of the particles. The particles can be laid down either directly in the bed or in locally structured packages/bundles which themselves are similarly oriented such that the bed particles behave similarly to a monolith but without at least some disadvantages. The adsorbent particles can be formed with a solid, non-porous core with the adsorbent formed as a thin, adherent coating on the exposed exterior surface. Particles may be formed as cylinders/hollow shapes to provide ready access to the adsorbent. The separation may be operated as a kinetic or equilibrium controlled process.

Gas purification process utilizing engineered small particle adsorbents

The present invention relates to methods and systems for removing polar molecule contaminants from a refinery stream in connection with the processing of hydrocarbon fluids, chemicals, whole crude oils, blends and fractions in refineries and chemical plants that include adding high surface energy and/or high surface area nanoparticle compounds to a refinery stream to remove the polar molecule contaminants.

Method and systems to remove polar molecules from refinery streams

A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. Also, the compressible object has an internal pressure (i) greater than about 200 pounds per square inch at atmospheric pressure and (ii) selected for a predetermined external pressure, wherein external pressures that exceed the internal pressure reduce the volume of the compressible object and wherein the shell being designed to reduce localized strains of the compressible object during expansion and compression of the compressible object.

Compressible objects having a predetermined internal pressure combined with a drilling fluid to form a variable density drilling mud

A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. The interior region of the shell is at least partially filled with a foam. The internal pressure of the compressible object may be greater than about 200 psi (pounds per square inch) at atmospheric pressure, greater than 500 psi at atmospheric pressure, greater than 1500 psi at atmospheric pressure or more preferably greater than 2000 psi at atmospheric pressure.

Compressible objects having partial foam interiors combined with a drilling fluid to form a variable density drilling mud

A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. The shell experiences less strain when the external pressure is about equal to the internal pressure than when the external pressure is above or below a predetermined compression interval of the compressible object includes a shell that encloses an interior region.

Compressible objects combined with a drilling fluid to form a variable density drilling mud

A method and system for drilling a wellbore is described. The system includes a wellbore with a variable density drilling mud, drilling pipe, a bottom hole assembly disposed in the wellbore and a drilling mud processing unit in fluid communication with the wellbore. The variable density drilling mud has compressible particles and drilling fluid. The bottom hole assembly is coupled to the drilling pipe, while the drilling mud processing unit is configured to separate the compressible particles from the variable density drilling mud. The compressible particles in this embodiment may include compressible hollow objects filled with pressurized gas and configured to maintain the mud weight between the fracture pressure gradient and the pore pressure gradient. In addition, the system and method may also manage the use of compressible particles having different characteristics, such as size, during the drilling operations.

System for managing variable density drilling mud

Growing community of inventors

Berkeley Heights, NJ, United States of America

Ramesh Gupta