Georgia Tech Research Corporation

Saudi Arabian Oil Company

Exxonmobil Technology and Engineering Company

Chevron U.s.a. Inc.

Yang Liu

William John Koros

Junyan Yang

Wenying Quan

Hannah E Holmes

Simon Christopher Weston

Hasmukh A Patel

Daniel Chinn

Ryan Paul Lively

Nitesh Bhuwania

Matthew James Realff

Fengyi Zhang

William J Koros

Stephen J A DeWitt

Zhongyun Liu

Stephen Ja DeWitt

Dong Hwi Jeong

Seongbin Ga

Sipei Li

Ink compositions are provided for using solvent-based additive manufacturing (SBAM) techniques to form contactor structures and/or structures for use in an adsorption or absorption contactor. Methods forming a contactor using SBAM are also provided. The ink compositions can include a substantial content of adsorbent particles to provide enhanced adsorption by a contactor. Metal organic framework (MOF) structures and zeotype framework structures are examples of types of adsorbent particles that can be incorporated into an ink composition for forming a contactor structure by SBAM. The ink can further include a polymeric component that can serve as the structural component of a polymeric structural material produced by the additive manufacturing method. Such a structural material can correspond to a polymeric material with incorporated adsorbent particles. In some aspects, the polymeric structural material and/or the adsorbent particles can have selectivity for adsorption of COfrom a process fluid flow.

Additive manufacturing techniques and ink formulations for incorporating adsorbent particles

This disclosure relates to membranes containing a polymer containing crown ether monomer units and a guest compound capable of binding thereto. This disclosure also relates to methods for making the membranes, and to methods for using the membranes for gas separation applications.

Membranes containing crown ether-containing polymers

Contactor structures are provided that can allow for improved heat management while reducing or minimizing the potential for contamination of process gas streams with heat transfer fluids. The contactor structures can include one or more sets of flow channels for process gas flows, such as gas flows introduced to allow adsorption of components from a gas stream or gas flows introduced to facilitate desorption of previously adsorbed components into a purge gas stream. The process gas flow channels can correspond to flow channels defined by a structural material of unitary structure. The unitary structure can correspond to the entire contactor, or the unitary structure can correspond to a monolith that forms a portion of the contactor. The contactor structures can also include one or more sets of flow channels for heat transfer fluids. The heat transfer flow channels can also be defined by the structural material of a unitary structure.

Advantaged adsorption contactors

Disclosed is a method for removing hydrogen sulfide from natural gas. The method includes passing a natural gas feed including methane and hydrogen sulfide (H2S) through a membrane at normal operating conditions. The membrane is an asymmetric hollow fiber membrane or an asymmetric film composite membrane including a porous layer and a nonporous skin layer. The asymmetric hollow fiber membrane or the nonporous skin layer of the asymmetric film composite membrane plasticizes during the method by exposure to condensable gases with high critical temperature under the operating conditions. The membrane preferentially removes H2S over methane from the natural gas feed at a H2S/methane selectivity of from 7 to 40 when measured at 35° C. and 45 bar.

Membranes for contaminant removal from natural gas and methods for use thereof

This disclosure relates to hybrid membranes comprising functionalized fillers within a polymer matrix and methods of using the membranes for gas separation applications, such as removal of hydrogen sulfide (HS) and carbon dioxide (CO) from natural gas.

Hybrid membranes with functionalized fillers for natural gas sweetening

Growing community of inventors

Belmont, MA, United States of America

Yang Liu