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Simultaneous measurement of CO_2 sorption and swelling of phosphate-based ionic liquid

Green Energy & Environment 2016年第3期1卷 258-265页

作者： Junfeng Wang Camille Petit Xiangping Zhang ah-hyung alissa park National Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences Department of Chemical Engineering Imperial College London Department of Earth & Environmental Engineering Lenfest Center for Sustainable Energy Columbia University Department of Chemical Engineering Lenfest Center for Sustainable Energy Columbia University

The development of alternative CO_2 capture solvents such as ionic liquids(ILs) and nanoparticle organic hybrid materials(NOHMs) have provided interesting options for CO_2 capture. In this study, CO_2 interactions with 1,3-dimethylimidazolium dimethylphosphate([MMIM]DMP),1-ethyl-3-methylimidazolium dimethylphosphate([EMIM]DMP) and 1-ethyl-3-methylimidazolium diethylphosphate([EMIM]DEP) that contain inorganic ester groups based on phosphate, were investigated using ATR FT-IR spectroscopy. CO_2-induced swelling, CO_2 diffusivity and CO_2 capture capacity were simultaneously measured to identify CO_2 capture mechanisms, kinetics and diffusion behaviors as a function of the alkyl chain length of the cation. Henry's law constants of CO_2 were found to be in the range of 4-11 MPa, which is in agreement with those reported in other studies.

关键词： CO2 capture ATR FT-IR spectroscopy Ionic liquids Mechanism Diffusivity

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Novel in-capsule synthesis of metal-organic framework for innovative carbon dioxide capture system

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Green Energy & Environment 2023年第3期8卷 767-774页

作者： Wei Yu Ming Gao Guanhe Rim Tony G.Feric Mark L.Rivers Ammar Alahmed Aqil Jamal ah-hyung alissa park State Key Laboratory of Clean Energy Utilization Zhejiang UniversityHangzhou310027China Lenfest Center for Sustainable Energy The Earth InstituteColumbia University918 S.W.Mudd HallMail Code 4711500 W 120th St.New YorkNY10027USA Department of Earth and Environmental Engineering 918 S.W.Mudd HallMail Code 4711500 W 120th St.New YorkNY10027USA Department of Chemical Engineering Columbia UniversityNew YorkNY10027USA University of Chicago ChicagoIL60637USA Research and Development Center Saudi AramcoDhahran31311Saudi Arabia

Metal-Organic Frameworks(MOFs)have been developed as solid sorbents for CO_(2) capture applications and their properties can be controlled by tuning the chemical blocks of their crystalline units.A number of MOFs(e.g.,HKUST-1)have been developed but the question remains how to deploy them for gas-solid ***,the direct use of MOFs as nanocrystals would lead to serious problems and ***,for the first time,we report a novel MOF-based hybrid sorbent that is produced via an innovative in-situ microencapsulated *** a custom-made double capillary microfluidic assembly,double emulsions of the MOF precursor solutions and UV-curable silicone shell fluid are ***,HKUST-1 MOF is successfully synthesized within the droplets enclosed in the gas permeable *** developed MOF-bearing microcapsules uniquely allow the deployment of functional nanocrystals without the challenge of handling ultrafine particles,and further,can selectively reject undesired compounds to protect encapsulated MOFs.

关键词： Encapsulation Metal-Organic Frameworks(MOFs) Carbon capture In-situ microencapsulated synthesis

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Investigation of the role of Ca(OH)2 in the catalytic Alkaline Thermal Treatment of cellulose to produce H2 with integrated carbon capture

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Journal of Energy Chemistry 2017年第5期26卷 984-1000页

作者： Maxim R.Stonor Nicholas Ouassil Jingguang G.Chen ah-hyung alissa park Department of Chemical Engineering Columbia UniversityNYUSA Department of Earth and Environmental Engineering Columbia UniversityNYUSA Lenfest Center for Sustainable Energy Columbia UniversityNYUSA

The Alkaline Thermal Treatment(ATT)of biomass is one of the few biomass conversion processes that has a potential for BECCS(bio-energy with carbon capture and storage).Combining in-situ carbon capture withcreates a carbon-neutral process that has the potential to be *** study has shown that the conversion of cellulose tosuppressedcan be achieved through the reforming of gaseous intermediates in a fixed bed of 10%Ni/*** occurs at low temperatures≤773 K,which could allow for improved sustainability.

关键词： Hydrogen Biomass Alkaline Thermal Treatment Calcium hydroxide Calcium carbonate Carbon capture utilization storage Nickel Heterogeneous catalysis Catalytic reforming

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