文章基本信息

标题：Utilization of Coal Fly Ash as CO Gas Adsorbent
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作者：Dyah Sawitri ; Ayu Lasryza
期刊名称：International Journal of Waste Resources
电子版ISSN：2252-5211
出版年度：2012
卷号：2
期号：2
页码：13-15
DOI：10.4172/2252-5211.1000112
语种：English
出版社：OMICS International
摘要：This research focused on coal fly ash fabricated as CO adsorbent. Coal fly ash having grain size of 325 mesh wascharacterized by XRF, XRD and SEM-EDX. Physical activation was done at temperatures of 5000C,5200C, 5400C, 5600C, 5800C and 6000C. Chemical activation was undertaken by mixing between fly ash and NaOH with massratio of 1: 1.2 with subsequent heating at 7500C for 1 h and followed by washing the specimens until pH=7. The samples weredried at 1000C for 1 h. The major constituents of unactivated coal fly ash are Fe, Ca, K, Si and Al in the form of quatz andanorthite. The chemical activation led to reduce the amount of quartz or increase the amount of anorthite. Physical activationdoes not affect the amount of minerals. Surface area of coal fly ash with physical activation at temperature 5400C and chemicalactivation is 32.444 m²/g (BET)
关键词：fly ash; adsorbent; activation; characterization