期刊
CHEMSUSCHEM
卷 7, 期 12, 页码 3312-3318出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201402879
关键词
adsorption; carbon capture and storage; icroporous materials; polymers; renewable resources
资金
- Max Planck Society
Suitable solid adsorbents are demanded for carbon capture and storage (CCS) processes. In this work, a novel microporous polymer is developed by hypercrosslinking of organosolv lignin, which is a renewable resource. Reaction with formaldehyde dimethyl acetal (FDA) via Friedel-Crafts reaction gives microporous networks, with moderate capacity of carbon dioxide but excellent selectivity towards CO2/N-2 mixture as predicted on the basis of ideal adsorption-solution theory (IAST). Pyrolysis of pure organosolv lignin results in microporous carbon powders, while pyrolysis of hypercrosslinked organosolv lignin yields shape-persistent materials with increased CO2 capacity while maintaining very good selectivity.
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