Removal of Elemental Mercury by Catalytic Oxidation in the Presence of Hydrogen Sulfide

摘要：

To avoid the emission of toxic mercury from coal gasification in particular elemental mercury,efficient gas cleaning systems to control mercury emission need to be developed.In this work,catalytic oxidation and adsorption of elemental mercury (Hg0) over activated carbon (AC) were investigated in the presence of hydrogen sulfide (H2S) and oxygen (O2) under simulated coal-derived gas conditions.It is found that the adsorption of Hg0 was enhanced by the presence of H2S and O2.The result indicates that Hg0 may react with H2S in the oxidizing atmosphere (O2) and form mercury (II) sulfide (HgS) by the catalysis of the activated carbon.Such oxidation adsorption mechanisms of Hg0 and H2S over AC are discussed based on the experimental results

关键词： Catalytic oxidation:Mercury Activated carbon Hydrogen sulfide

作者: He Zhang Jiantao Zhao Yitian Fang Professor Yang Wang

作者单位: Ph.D Student Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan,Shanxi,030001,China Associated Professor Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan,Shanxi,030001,C Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan,Shanxi,030001,China

会议类型: 国际会议

会议名称: The 8th International Symposium on Gas Cleaning at High Temperatures(第八届国际高温气体净化技术研讨会 GCHT-8)

会议地点: 太原

会议语种:英文

页码: 26-36

在线出版日期: 2010-08-23（万方平台首次上网日期，不代表论文的发表时间）