Jordan P. Page

Pacific Northwest National Laboratory

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Phillip Koech

Pacific Northwest National Laboratory

Deepika Malhotra

Pacific Northwest National Laboratory

David C. Cantu

University of Nevada, Reno

David J. Heldebrant

Pacific Northwest National Laboratory

Manh‐Thuong Nguyen

Pacific Northwest National Laboratory

Vassiliki‐Alexandra Glezakou

Battelle

Difan Zhang

Pacific Northwest National Laboratory

Richard Zheng

Star Technology and Research (United States)

Roger Rousseau

Oak Ridge National Laboratory

Robert J. Perry

GE Global Research (United States)

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Pacific Northwest National Laboratory

Battelle

Richland College

Government of the United States of America

Environmental Molecular Sciences Laboratory

Physical Sciences (United States)

Oak Ridge National Laboratory

Iowa State University

Washington State University

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Cover Feature: Molecular‐Level Overhaul of γ‐Aminopropyl Aminosilicone/Triethylene Glycol Post‐Combustion CO 2 ‐Capture Solvents (ChemSusChem 13/2020)

ChemSusChem (2020)

David C. Cantu Deepika Malhotra Manh‐Thuong Nguyen Phillip Koech Difan Zhang

The Cover Feature illustrates the approach that bridges the fundamental aspects of atomistic simulations with the design of single-components diamines for CO2 capture. The image was designed by Cortland Johnson and Vassiliki-Alexandra Glezakou of PNNL. More information can be found in the Full Paper by D. C. Cantu et al. on page 3429 in Issue 13, 2020 (DOI: 10.1002/cssc.202000724).

Triethylene glycol

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10.1002/cssc.202001474

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Critical fuel property evaluation for potential gasoline and diesel biofuel blendstocks with low sample volume availability

Fuel (2018)

Evgueni Polikarpov Karl Albrecht Jordan P. Page Deepika Malhotra Phillip Koech

Cetane number

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10.1016/j.fuel.2018.09.129

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Molecular‐Level Overhaul of γ‐Aminopropyl Aminosilicone/Triethylene Glycol Post‐Combustion CO₂‐Capture Solvents

ChemSusChem (2020)

David C. Cantu Deepika Malhotra Manh‐Thuong Nguyen Phillip Koech Difan Zhang

Abstract Capturing carbon dioxide from post‐combustion gas streams is an energy‐intensive process that is required prior to either converting or sequestering CO 2 . Although a few commercial 1st and 2nd generation aqueous amine technologies have been proposed, the cost of capturing CO 2 with these technologies remains high. One approach to decrease costs of capture has been the development of water‐lean solvents that aim to increase efficiency by reducing the water content in solution. Water‐lean solvents, such as γ‐aminopropyl aminosilicone/triethylene glycol (GAP/TEG), are promising technologies, with the potential to halve the parasitic load to a coal‐fired power plant, albeit only if high solution viscosities and hydrolysis of the siloxane moieties can be mitigated. This study concerns an integrated multidisciplinary approach to overhaul the GAP/TEG solvent system at the molecular level to mitigate hydrolysis while also reducing viscosity. Cosolvents and diluents are found to have negligible effects on viscosity and are not needed. This finding allows for the design of single‐component siloxane‐free diamine derivatives with site‐specific incorporation of selective chemical moieties for direct placement and orientation of hydrogen bonding to reduce viscosity. Ultimately, these new formulations are less susceptible to hydrolysis and exhibit up to a 98 % reduction in viscosity compared to the initial GAP/TEG formulation.

Triethylene glycol

10.1002/cssc.202000724

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Citations (23)