University of Colorado

Other

The University of Texas System

University Technology Corporation

Shell Oil Comapny

Commonwealth Scientific and Industrial Research Organisation

Colorado State University Research Foundation

Richard Daniel Noble

Carl A Koval

John L Falconer

Douglas L Gin

Shiguang Li

Jason Edward Bara

Hans Heinrich Funke

Mya A Norman

Christine E Evans

Mary R DuBois

Lori Nixon

Geoffrey F Slaff

Trevor Carlisle

Steven McClellan George

Jason W Klaus

Noel A Clark

Moises Abraham Carreon

Evan Shigeto Hatakeyama

Andrew L LaFrate

Rasika Dias

Devaborniny Parasar

Naleen B Jayaratna

Tuan Anh Vu

Sara A Arvidson

Andrew W Ott

Robert L Kerr

Matthew G Cowan

Zaida Diaz

Brendan Dermot Murray

Paul Jason Williams

Matthew Roland Hill

Wei Zhang

Travis S Bailey

Kristina Konstas

Jackson T Lewis

Forrest W Payne

Phuc Tien Nguyen

Matthew Greig Cowan

Kristine Fischenich

Tammy Haut Donahue

Chen Guo

Garret Nicodemus

Cher Hon Lau

John Pellegrino

Meng-Dong Jia

Dilanji Wijayasekara

Jeffrey G Sczechowski

Blaine M Carter

Robert Rabago

Paul M Thoen

Zoban Singh

Collin Andrew Dunn

Sarah Marie Dischinger

Nancy S Foster

Yanfeng Zhang

William McDanel

Yinghua Jin

Meijuan Zhou

Xiaohui Zeng

Bret A Voss

Begum Tokay

Disclosed herein is a process for separating a hydrocarbon feed gas mixture comprising constituents including ethylene to produce a separated ethylene product. The disclosed process employs a solid-state ethylene sorbent and temperature and/or pressure swing adsorption and membrane separation and demonstrates a methodology to reduce the net heat of reaction during the adsorption of ethylene onto an adsorbent.

Solid-state copper(I) sorbents for olefin separations

The invention includes compositions and methods for promoting gas mixtures separations, such as a carbon dioxide and methane mixture. The composition of the invention is based on a curable polymerized room-temperature ionic liquid [poly(RTIL)].

Curable poly(RTIL)-based mixed-matrix membranes and methods using same

The invention includes methods of reversibly tuning the effective pore size and/or solute rejection selectivity of a nanoporous lyotropic liquid crystal (LLC) polymer membrane. The membranes of the invention have high levels of pore size uniformity, allowing for size discrimination separation, and may be used for separation processes such as liquid-phase separations.

Nanoporous lyotropic liquid crystal polymer membranes with reversibly tuned pore size and selectivity, and methods using same

Provided herein is a block copolymer hydrogel, comprising a glass formed from a dry blend of polystyrene-poly(ethylene oxide) diblock copolymer (SO) and polystyrene-poly(ethylene oxide)-polystyrene triblock copolymer (SOS) in a molar ratio from between 95:5 and 1:99 SO/SOS and a liquid medium at a concentration between about 32:1 and about 2:1 liquid medium/SO&#x2014;SOS by weight. The block copolymer hydrogel has a fatigue resistance to at least 500,000 compression cycles. Also provided are methods for forming the hydrogel.

Thermoplastic elastomer hydrogels

The present invention relates to a mixed-matrix composition comprising polymer having a fractional free volume of at least 0.1 and porous particles.

Mixed matrix polymer compositions

The invention includes compositions comprising curable imidazolium-functionalized poly(room-temperature ionic liquid) copolymers and homopolymers. The invention further includes methods of preparing and using the compositions of the invention. The invention further includes novel methods of preparing thin, supported, room-temperature ionic liquid-containing polymeric films on a porous support. In certain embodiments, the methods of the invention avoid the use of a gutter layer, which greatly reduces the overall gas permeance and selectivity of the composite membrane. In other embodiments, the films of the invention have increased gas selectivity and permeance over films prepared using methods described in the prior art.

Composites comprising novel RTIL-based polymers, and methods of making and using same

The present invention provides gels, solutions, films, membranes, compositions, and other materials containing polymerized and/or non-polymerized room-temperature ionic liquids (RTILs). These materials are useful in catalysis, gas separation and as antistatic agents. The RTILs are preferably imidazolium-based RTILs which are optionally substituted, such as with one or more hydroxyl groups. Optionally, the materials of the present invention are composite materials comprising both polymerized and non-polymerized RTILs. The RTIL polymer is formed from polymerized RTIL cations typically synthesized as monomers and polymerized in the presence of the non-polymerized RTIL cations to provide a solid composite material. The non-polymerized RTIL cations are not covalently bound to the cationic polymer but remain as free cations within the composite material able to associate with charged subunits of the polymer. These composite materials are useful in catalysis, gas separation, and antistatic applications.

Imidazolium-based room-temperature ionic liquids, polymers, monomers and membranes incorporating same

Porous bulk materials formed of shape-persistent, non-collapsible, three-dimensional molecular cage building blocks are presented that are useful for a variety of applications including gas separation/storage, sensing, and catalysis.

Organic porous materials comprising shape-persistent three-dimensional molecular cage building blocks

Imidazolium-based room-temperature ionic liquids, polymers, monomers, and membranes incorporating same

A method of making a supported gas separation molecular sieve membrane. In this method a porous support, which is preferably pretreated, is contacted with a molecular sieve synthesis mixture under hydrothermal synthesis conditions. The contacting step is conducted for a shortened crystallization time period. The resulting coated porous support is calcined to yield the supported gas separation molecular sieve membrane having particularly good gas separation characteristics.

Method of making a high-performance supported gas separation molecular sieve membrane using a shortened crystallization time

The present invention provides methods for making improved zeolite and crystalline silicoaluminophosphate (SAPO) membranes, in particular SAPO-34 membranes, on a porous support through improved removal of the organic structure-directing templating agent. A calcining step is performed in an oxygen free atmosphere, such as under a vacuum or inert gas, to remove the organic templating agent. By removing the templating agent in the absence of oxygen, the calcination step can remove a greater amount of the templating agent than comparable template removal steps conducted in the presence of oxygen and the calcination step can be conducted at significantly lower temperatures. The membranes of the present invention provide increased permeance while maintaining comparable selectivity for gas separations, particularly carbon dioxide (CO) and methane (CH) separations and separations at high temperatures.

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SAPO-34 membranes and methods for their preparation and use are described. The SAPO-34 membranes are prepared by contacting at least one surface of a porous membrane support with a synthesis gel. The Si/Al ratio of the synthesis gel can be from 0.3 to 0.15. SAPO-34 crystals are optionally applied to the surface of the support prior to synthesis. A layer of SAPO-34 crystals is formed on at least one surface of the support. SAPO-34 crystals may also form in the pores of the support. SAPO-34 membranes of the invention can have improved selectivity for certain gas mixtures, including mixtures of carbon dioxide and methane.

The invention provides electrochemically-based methods and devices for producing fluid flow and/or changes in fluid pressure. In the methods and devices of the invention, current is passed through a divided electrochemical cell. Adjacent compartments of the cell are divided by a separator which comprises an ionically conducting separator. Each compartment includes an electrode and an electrolyte solution or ionic liquid. The electrolyte solution(s) or ionic liquid(s) and the ionically conducting separator are selected to obtain the desired relationship between the current through the cell and the fluid flowrate and/or change in fluid pressure.

Electrochemical high pressure pump

SAPO-34 membranes and methods for their preparation and use are described. The SAPO-34 membranes are prepared by contacting at least one surface of a porous membrane support with a synthesis gel comprising a first and a second templating agent. SAPO-34 crystals having a narrow size distribution were applied to the surface of the support prior to synthesis. A layer of SAPO-34 crystals is formed on at least one surface of the support. SAPO-34 membranes of the invention can have improved selectivity for certain gas mixtures, including mixtures of carbon dioxide and methane.

Synthesis of zeolites and zeolite membranes using multiple structure directing agents

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Boulder, CO, United States of America

Richard Daniel Noble