Shell Oil Comapny

Other

Shell Internationale Research Maatschappij, B.v.

John Charles Saukaitis

Alan Anthony Del Paggio

John Anthony Smegal

Narayana Mysore

Ashley Renee Villarreal

Nathan Earl Perkins, Ii

Kamal Azad

Nathan Earl Perkins Ii

Eric Precise

An integrated process for making high molecular weight hydrocarbons from a synthesis gas feed to a Fischer-Tropsch unit. A carbon monoxide resistant gold-on-palladium membrane system (membrane system) is used to control the hydrogen-to-carbon monoxide molar ratio of a feed to the Fischer-Tropsch unit. The membrane system is operatively connected between a steam reformer and the Fischer-Tropsch unit. The membrane system receives a synthesis gas stream and provides for the removal of hydrogen from the synthesis gas stream to provide a retentate stream having a desired H/CO molar ratio that is fed to the Fischer-Tropsch unit.

Method using carbon monoxide resistant membrane to control H2/CO ratio of synthesis gas feed to fischer-tropsch unit

A method of making a gas separation membrane by providing a plating vessel with a volume of plating solution of gas-selective metal ions into which is placed a porous support. The plating solution is circulated over a surface of the porous support while maintaining conditions within the plating vessel so as to promote the electroless deposition. The circulation rate of the plating solution is such as to enhance the metal deposition onto the surface of the porous support in the formation of the gas separation membrane.

Method of preparing or reconditioning a leak stable gas separation membrane system

A method of making a gas separation membrane system by providing a porous support material having deposited thereon a metal membrane layer and imposing upon the surface thereof certain surface characteristics that provide for surface activation that enhances the placement thereon of a subsequent metal membrane layer. The gas separation membrane system is useful in the separation of hydrogen from hydrogen-containing gas streams.

Supported gas separation membrane and method

A method of making a composite gas separation module by providing a porous support material having deposited thereon a metal membrane layer, by imposing upon the surface of the metal membrane layer certain surface characteristics including an abrasion pattern and a relatively high surface roughness that provides for surface activation that enhances the placement thereon of a subsequent metal membrane layer without the use of a chemical activating solution. The composite gas separation module is useful in the separation of hydrogen from hydrogen-containing gas streams.

Method of making a composite gas separation module

A method of preparing a palladium-silver alloy gas separation membrane system, wherein the surface of the palladium layer or a silver layer is activated by a non-chemical activation method involving abrasion to a controlled surface roughness and abrasion pattern, thereby permitting the plating or deposition of an overlayer of silver on the palladium layer, silver on a silver layer, or palladium on a silver layer. The palladium and silver layers are preferably supported on a porous metal support to which an intermetallic diffusion barrier has been applied.

Method of preparing a palladium-silver alloy gas separation membrane system

A method for preparing a palladium-gold alloy gas separation membrane system comprising a gold-palladium alloy membrane on a porous substrate coated with an intermetallic diffusion barrier. The method includes an abrading step to increase surface roughness of the palladium to a desired range, a gold plating step with a solution of chloroauric acid (AuClH) and hydrogen peroxide, followed by annealing to produce a palladium-gold alloy membrane.

Method for preparing a palladium-gold alloy gas separation membrane system

A gas separation membrane system and a method of preparing such gas separation membrane system by providing a porous support upon which is supported a membrane layer comprising a first gas-selective material and having a membrane thickness and removing therefrom a substantial portion of the first gas-selective material from the membrane layer by the use of an ultra-fine abrasive to thereby provide the membrane layer having a reduced membrane thickness. A second gas-selective material is deposited upon the membrane layer having the reduced membrane thickness to provide an overlayer of the second gas-selective material having an overlayer thickness so as to thereby provide the gas separation membrane system having the membrane layer of the reduced membrane thickness and the overlayer of the overlayer thickness.

Gas separation membrane system and a method of preparing or reconditioning and the use thereof

A method of preparing a gas separation membrane system and the gas separation membrane system itself, wherein the method includes applying a layer of a gas-selective material to a porous substrate followed by heat-treating thereof in an inert gaseous atmosphere and then polishing and repeating these steps to thereby provide the gas separation membrane system or a structure that may suitably be used in a gas separation membrane system.

Method of making a leak stable gas separation membrane system

Catalyst comprising a combination of oxidized metals and processes for cleaving phenylalkyl hydroperoxides in the presence of the catalyst.

Catalysts comprising a combination of oxidized metals and a method for cleaving phenylalkyl hydroperoxides using the catalysts

A gas separation membrane and a method of manufacturing such gas separation membrane that comprises a porous substrate treated with a layer of metal-coated inorganic oxide particles and with the layer of such metal-coated inorganic oxide particles being coated with an overlayer of a gas-selective material.

Gas separation membrane comprising a substrate with a layer of coated inorganic oxide particles and an overlayer of a gas-selective material, and its manufacture and use

A method of manufacturing such gas separation membrane system that includes applying to a surface of a porous substrate a layer of a nanopowder of a gas-selective metal and, thereafter, heat-treating the resultant surface treated porous substrate to yield a heat-treated and surface-treated porous substrate suitable for use as a gas separation membrane system.

Growing community of inventors

Katy, TX, United States of America

John Charles Saukaitis