H_2S、SO_2的吸附(干法)脱除研究进展

对近十年国内外H2S、SO2吸附脱除的研究进展进行了述评。首先指出了燃料是硫的主要来源;阐明了H2S、SO2脱除的化学基础;着重分析了高温煤气中H2S脱除的吸附剂和可再生烟道气中SO2与NOx的同时脱除吸附剂的研究情况;最后指出了影响吸附剂选择的因素。

in this paper we give a review of removal of hydrogen sulfide(H 2S) and sulfur dioxide(SO 2) by adsorption method (dry method).First,we point out that fossil fuels are main source of sulfur;then explain the chemical principles for removal of H 2S and SO 2;next,lay emphasis on two kinds of adsorbents.One is used in hot gas cleanup of coal gas in IGCC plants;the other is in simultaneously desulfurization and denitrification of flue gas.In the end,we show the factors that may affect the choosing of adsorbents.