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1. (WO2017035023) MICROCRYSTALLINE CELLULOSE PYROLYZATE ADSORBENTS AND METHODS OF MAKING AND USING SAME

Pub. No.:    WO/2017/035023    International Application No.:    PCT/US2016/047880
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Sat Aug 20 01:59:59 CEST 2016
IPC: B01J 20/24
B01J 20/28
B01J 20/26
H01L 21/02
H01L 31/18
Applicants: ENTEGRIS, INC.
Inventors: STURM, Edward, A.
WILSON, Shaun, M.
PETRUSKA, Melissa, A.
Title: MICROCRYSTALLINE CELLULOSE PYROLYZATE ADSORBENTS AND METHODS OF MAKING AND USING SAME
Abstract:
A cellulosic carbon pyrolyzate material is disclosed, having utility as a gas adsorbent for use in gas storage and delivery devices, gas filters, gas purifiers and other applications. The cellulosic carbon pyrolyzate material comprises microporous carbon derived from cellulose precursor material, e.g., microcrystalline cellulose. In adsorbent applications, the cellulosic carbon pyrolyzate may for example be produced in a particulate form or a monolithic form, having high density and high pore volume to maximize gas storage and delivery, with the pore size distribution of the carbon pyrolyzate adsorbent being tunable via activation conditions to optimize storage capacity and delivery for specific gases of interest. The adsorbent composition may include other non-cellulosic pyrolyzate components.