文献类型：期刊文献

中文题名：乙炔氢氯化反应高分散载金催化剂的制备及催化性能

英文题名：PREPARATION AND CATALYTIC PERFORMANCE OF HIGH DISPERSED GOLD-SUPPORTED CATALYSTS FOR HYDROCHLORINATION OF ACETYLENE

作者：王声洁[1];沈本贤[1];肖卫国[2];宋庆雷[1]

机构：[1]华东理工大学化学工程联合国家重点实验室,上海200237;[2]天津大沽化工股份有限公司,天津300455

年份：2010

卷号：26

期号：2

起止页码：201

中文期刊名：石油学报（石油加工）

外文期刊名：Acta Petrolei Sinica(Petroleum Processing Section)

收录：CSTPCD;;EI(收录号：20102212966745);Scopus;北大核心:【北大核心2008】；CSCD:【CSCD_E2011_2012】；

语种：中文

中文关键词：Au(en)2Cl3;乙炔;氢氯化;金

外文关键词：Au（en）2Cl3; acetylene; hydrochlorination; gold

摘要：采用Au(en)2Cl3作前驱体,制备了用于乙炔氢氯化反应的载Au催化剂,并采用N2-吸附、XRD、TEM进行了表征。在常压固定床反应器中考察了Au的价态、载体、Au负载量、碱金属助剂对Au催化剂活性的影响。结果表明,催化乙炔氢氯化反应的载Au催化剂的活性组分主要以离子态Aun+存在。采用椰壳质活性炭(ACS)为载体、KCl为助剂、Au负载量为1%(质量分数)时,载Au催化剂Au-K/ACS具有较高分散度,平均粒径为2.3 nm。以Au-K/ACS作为催化剂,在温度180℃、空速240 h-1、V(HCl)/V(C2H2)=1.1时,乙炔氢氯化反应的转化率可达98%以上,氯乙烯选择性不低于99.5%;在空速为2000 h-1时,该催化剂仍具有较好的稳定性。
Gold-supported catalysts for acetylene hydrochlorination were prepared with Au（en）2Cl3 as precursor and analyzed by the characterization methods of N2-adsorption, XRD and TEM. Effects of gold valence, support, Au loading and alkali metals on the catalytic performances of gold-supported catalysts were studied in detail at an atmospheric fixed bed reactor. The results indicated that the active constituents of gold-supported catalysts for hydrochlorination of acetylene were ionic Aun＋. With activated carbon derived from coconut shell （Acs） as the support, KCl as the promoter and Au loading of 1%, gold-supported catalyst Au-K/Acs was of high dispersity and high catalytic activity for acetylene hydrochlorination. Under the reaction conditions of temperature 180℃, total gas hourly space velocity （GHSV） 240 h-1, feed volume ratio V（HCl）/V（C2H2）=1.1, the conversion of acetylene was up to 98% and the selectivity to vinyl chloride was more than 99.5%. In addition, the stability of Au-K/Acs catalyst was still favorable, even the GHSV was up to 2000 h-1.