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CO 2 Capture and Ca 2+ Exchange Using Zeolite A and 13X Prepared from Power Plant Fly Ash
Author(s) -
Soe June Thet,
Kim SuSung,
Lee YuRi,
Ahn JiWhan,
Ahn WhaSeung
Publication year - 2016
Publication title -
bulletin of the korean chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.237
H-Index - 59
ISSN - 1229-5949
DOI - 10.1002/bkcs.10710
Subject(s) - zeolite , fly ash , alkali metal , ion exchange , chemistry , hydrothermal reaction , hydrothermal circulation , nuclear chemistry , fusion , chemical engineering , ion , organic chemistry , catalysis , linguistics , philosophy , engineering
Zeolite A and 13X were prepared by a hydrothermal treatment using fly ash after alkali fusion. The alkali‐fusion condition was optimized to a 1:1.2 fly ash/ NaOH weight ratio at 500 °C for 1 h, and highly crystalline zeolite A and 13X were obtained at 100 °C for 4 h and 90 °C for 12 h, respectively. Both products exhibited high Ca 2+ ion‐exchange capacity (184 and 134 mg/g) and stable CO 2 capture cyclic performance (145 and 220 mg/g).