Georgia Tech Research Corporation

Exxonmobil Technology and Engineering Company

Fengyi Zhang

Ryan Paul Lively

Yang Liu

Wenying Quan

Hannah E Holmes

William John Koros

Simon Christopher Weston

Carter W Abney

Laurens Victor Breedveld

Matthew James Realff

Mark D Losego

Emily K McGuinness

Seongbin Ga

Dong Hwi Jeong

Stephen Ja DeWitt

Nian Liu

Yutong Wu

Stephen J A DeWitt

William J Koros

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

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

An exemplary embodiment of the present disclosure provides an electrochemical device comprising a tube having an outer surface defining an interior volume of the tube; a first hollow fiber positioned in the interior volume of the tube, the first hollow fiber comprising: a first membrane defining an interior volume of the first hollow fiber; one or more first electrodes positioned in the interior volume of the first hollow fiber; and at least a first portion of a first electrolyte fluid positioned in the interior volume of the first hollow fiber; one or more second electrodes positioned in the interior volume of the tube and outside of the interior volume of the first hollow fiber; and a second electrolyte fluid positioned in the interior volume of the tube and outside of the interior volume of the first hollow fiber. Also disclosed herein are methods of making an electrochemical device.

Electrochemical flow devices and methods of making the same

Disclosed herein are hybrid membranes comprising: a microporous polymer, the microporous polymer comprising a continuous polymer phase permeated by a continuous pore phase; and an atomic scale inorganic material dispersed throughout the microporous polymer within the continuous pore phase. Methods of making and use of the hybrid membranes are also disclosed.

Hybrid membranes and methods of making and use thereof

Disclosed herein are solution-based additive manufacturing inks comprising a polymer, a volatile solvent compound, and a nonsolvent compound. With current additive manufacturing techniques, a wide range of functionally innovative polymers are left without the ability to be used in additive manufacturing. Improved additive manufacturing techniques to process advanced functional polymers are desirable. The disclosed ink is operable to render any chosen polymer useable in additive manufacturing methods. The composition of the disclosed ink allows for a phase inversion to occur to transition the ink from a liquid ink to a solid manufactured structure. Also disclosed herein are devices for additive manufacturing of the ink and methods for making the same.

Solution-based additive manufacturing

Growing community of inventors

Atlanta, GA, United States of America

Fengyi Zhang