Journal
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION
Volume 59, Issue 10, Pages 1140-1147Publisher
TAYLOR & FRANCIS INC
DOI: 10.3155/1047-3289.59.10.1140
Keywords
-
Funding
- Thailand Research Fund
- Graduated Research Fund at Chulalongkorn University, Thailand
Ask authors/readers for more resources
The possibility in converting coal fly ash (CFA) to zeolite was evaluated. CFA samples from the local power plant in Prachinburi province, Thailand, were collected during a 3-month time span to account for the inconsistency of the CFA quality, and it was evident that the deviation of the quality of the raw material did not have significant effects on the synthesis. The zeolite product was found to be type X. The most suitable weight ratio of sodium hydroxide (NaOH) to CFA was approximately 2.25, because this gave reasonably high zeolite yield with good cation exchange capacity (CEC). The silica (Si)-to-aluminum (AI) molar ratio of 4.06 yielded the highest crystallinity level for zeolite X at 79% with a CEC of 240 meq/100 g and a surface area of 325 m(2)/g. Optimal crystallization temperature and time were 90 degrees C and 4 hr, respectively, which gave the highest CEC of approximately 305 meq/100 g. Yields obtained from all experiments were in the range of 50-72%.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available