Massachusetts Institute of Technology

Saudi Arabian Oil Company

Trevor Alan Hatton

Sahag Voskian

Cameron G Halliday

Takuya Harada

Lev E Bromberg

Xiao Su

Michael C Stern

Fritz Simeon

Gregory C Rutledge

Xianwen Mao

Yinying Ren

Bernhardt Levy Trout

Paul Brown

Allan Stuart Myerson

Yogesh Surendranath

Alexander Murray

Aly Eldeen O Eltayeb

Emily Chang

Aqil Jamal

Won Sik Kim

Udi Meirav

Timothy F Jamison

Patrick Seamus Doyle

Yi Du

Jung-Hoon Chun

Salvatore Mascia

Nikhil Padhye

Miao Wang

Ryan Alex Shaw

Keith M Forward

Himanshu Hemant Dhamankar

Wenda Tian

Demetra S Achilleos

James M B Evans

Ryan Richard Slaughter

Mao Wang

Blair Kathryn Brettmann

Ying Diao

Matthew E Helgeson

Jennifer Aiden Kozak

Jie Wu

Huan Zhang

Liang Chen

Abhinav Akhoury

Yayuan Liu

The recovery of target species, and related systems and methods, are generally described.

Target species recovery and related systems and methods

Methods of using sorbents to enhance the production of hydrogen from fuel, and related systems, are generally described. In some embodiments, the production of hydrogen from the fuel involves a reforming reaction and/or a gasification reaction combined with a water-gas shift reaction.

Sorbent-enhanced processes for the reaction of fuel to produce hydrogen and related systems

Methods, apparatuses, and systems related to the electrochemical separation of target gases from gas mixtures are provided. In some cases, a target gas such as carbon dioxide is captured and optionally released using an electrochemical cell (e.g., by bonding to an electroactive species in a reduced state). Some embodiments are particularly useful for selectively capturing the target gas while reacting with little to no oxygen gas that may be present in the gas mixture. Some such embodiments may be useful in applications involving separations from gas mixtures having relatively low concentrations of the target gas, such as direct air capture and ventilated air treatment.

Electrochemically mediated gas capture, including from low concentration streams

An asymmetric system containing a first conductive polymer modified with a redox active moiety and a second conductive polymer modified with a surfactant is used for the separation of organic compounds from aqueous solutions. The asymmetric system has complementary hydrophobicity tunability in response to electrochemical modulations. For example, both materials are hydrophobic in their respective neutral states, therefore exhibiting affinity toward organic compounds. Application of a mild potential drives the desorption of the organic compounds and regeneration of the materials. The asymmetric system can be used in a cyclic fashion, through repeated electrical discharge or shorting of the two electrodes to program the capture of organics from a feed solution, and application of a potential to stimulate the release of the adsorbed organics.

Asymmetric electrochemical systems and methods

The present disclosure generally relates to apparatuses, systems, and methods for separating a target species (e.g., CO) from a gas mixture (e.g., gas stream) via an electrochemical process.

Electrochemical process for gas separation

Various aspects described herein relate to electrochemical devices, e.g., for separation of one or more target organic or inorganic molecules (e.g., charged or neutral molecules) from solution, and methods of using the same. In particular embodiments, the electrochemical devices and methods described herein involve at least one redox-functionalized electrode, wherein the electrode comprises an immobilized redox-species that is selective toward a target molecule (e.g., charged molecule such as ion or netural molecule). The selectivity is based on a Faradaic/redox-activated chemical interaction (e.g., directional hydrogen binding) between the oxidized state of the redox species and a moiety of the target molecule (e.g., charged molecule such as ion or netural molecule).

Electrochemical devices or systems comprising redox-functionalized electrodes and uses thereof

The present disclosure is related to porous media with adjustable fluid permeabilities and related systems and methods. In certain cases, the fluid permeability of a porous medium can be adjusted by applying an electrical potential to the porous medium. In some such cases, the application of the electrical potential to the porous medium results in the deposition of material over or the removal of material from the porous medium. Also disclosed herein are systems and methods for capturing species (e.g., acid gases) in which porous media with adjustable fluid permeabilities are used, for example, to control the flow of fluid into and out of a medium used to capture the species.

Porous medium with adjustable fluid permeability and associated systems and methods

Methods, apparatuses, and systems related to electrochemical capture of Lewis acid gases from fluid mixtures are generally described. Certain embodiments are related to electrochemical methods involving selectively removing a first Lewis acid gas from a fluid mixture containing multiple types of Lewis acid gases (e.g., a first Lewis acid gas and a second Lewis acid gas). Certain embodiments are related to electrochemical systems comprising certain types of electroactive species having certain redox states in which the species is capable of binding a first Lewis acid gas but for which binding with a second Lewis acid gas is thermodynamically and/or kinetically unfavorable. The methods, apparatuses, and systems described herein may be useful in carbon capture and pollution mitigation applications.

Electrochemical capture of Lewis acid gases

Various aspects described herein relate to electrochemical devices, e.g., for separation of one or more biomolecules from a solution, and methods of using the same. Methods for using the electrochemical devices for biocatalysis are also described herein.

Use of electrochemical devices or systems comprising redox-functionalized electrodes for bioseparation and biocatalysis

Systems and methods for electrochemically producing chemical products are provided. In certain cases, the systems and methods described herein are capable of producing chemical products such as hydrogen peroxide in solutions with relatively low concentrations of electrolyte or other dissolved species at high efficiencies and/or low energetic cost. In some cases, redox mediators are used to spatially decouple direct electrochemical processes from the production of the chemical product.

Production of chemical products using electrochemical flow systems and mediators and associated methods

The removal of acid gases (e.g., non-carbon dioxide acid gases) using sorbents that include salts in molten form, and related systems and methods, are generally described.

Treatment of acid gases using molten alkali metal borates, and associated methods of separation

Processes for regenerating sorbents at high temperatures, and associated systems, are generally described.

Processes for regenerating sorbents, and associated systems

Growing community of inventors

Sudbury, MA, United States of America

Trevor Alan Hatton