%0 Journal Article
%T Preparation and mechanism of Fe-K/AC for catalytic oxidation of hydrogen sulfide<br>Fe-K/AC催化氧化脱硫剂制备及反应机理研究
%A FANG Hui-bin
%A ZHAO Jian-tao
%A WANG Sheng
%A HUANG Jie-jie
%A FANG Yi-tian
%A <br>方惠斌
%A 赵建涛
%A 王胜
%A 黄戒介
%A 房倚天
%J 燃料化学学报
%D 2012
%I 
%X Modified activated carbon Fe-K/AC(activated carbon supported iron and potassium) was used as an oxidation catalyst for low concentration hydrogen sulfide(H2S) removed.The orthogonal design method was introduced in the research of Fe-K/AC preparation to determine the optimum condition and to measure the impact of different factors.Then,catalytic activity and mechanism on Fe-K/AC catalyst for oxidation of hydrogen sulfide was investigated.The optimum preparation condition of Fe-K/AC with high sulfur capacity and selectivity is that the iron and potassium content is 0.5% and 5.0%,respectively;and the calcination temperature and the Fe2+/Fe3+ atomic ratio is 600 ℃ and 0.5,respectively.The order of their influences is potassium content > iron content > calcination temperature > Fe2+/Fe3+ atomic ratio.Results from structural parameters and surface morphology of sorbents reveal that iron metal oxide loaded on the surface of activated carbon has the selective catalytic oxidation activity of hydrogen sulfide to element sulfur.Alkali metal oxide,which changes basic surface groups,has a synergistic effect on the catalytic oxidation of hydrogen sulfide.However,the catalytic activity decreases due to excessive metal oxides loadings that may block the accessibility of micropores and reduce the surface area.
%K Fe-K/AC
%K desulfurization
%K catalytic oxidation
%K hot coal gas
%K orthogonal design<br>Fe-K/AC
%K 脱硫
%K 催化氧化
%K 热煤气
%K 正交设计
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=C6AB115B41BD2F1616ECDB095B69B8ED&aid=EC09C1218AC1072B32E00D05422969EF&yid=99E9153A83D4CB11&vid=1371F55DA51B6E64&iid=CA4FD0336C81A37A&sid=03F1579EF92A5A32&eid=4DB1E72614E68564&journal_id=0253-2409&journal_name=燃料化学学报&referenced_num=0&reference_num=18