文献类型：期刊文献

中文题名：在TAME裂解反应中HPW改性NiSO_4/γ-Al_2O_3催化剂的酸性研究

英文题名：Acidity of Ni SO_4/ γ-Al_2O_3 catalyst modified by HPW for TAME cracking

作者：杨辉[1];王筠松[1];钱凯丽[1];詹望成[1];郭杨龙[1]

机构：[1]华东理工大学工业催化研究所,上海200237

年份：2016

卷号：36

期号：8

起止页码：109

中文期刊名：现代化工

外文期刊名：Modern Chemical Industry

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

语种：中文

中文关键词：固体酸催化剂;甲基叔戊基醚;B酸;L酸

外文关键词：solid acid catalyst; TAME; B acid; L acid

摘要：研究了自制固体酸催化剂HPW-NiSO_4/γ-Al_2O_3在甲基叔戊基醚(TAME)裂解制备异戊烯反应中的应用。结果表明,用HPW改性的NiSO_4/γ-Al_2O_3催化剂能够使TAME的转化率达99%以上,且无二甲醚生成。通过XRD、NH3-TPD和FTIR对该催化剂进行表征,结果表明,HPW、NiSO_4高度分散在载体表面且具有良好的催化稳定性,催化剂上含有B酸、L酸,合适的CB/CL能促进TAME裂解和抑制副产物二甲醚生成。
The self-made solid acid catalysts of HPW-NiSO_4/γ-Al_2O_3 have been applied in cracking TAME to isopentene. The results indicate that the catalysts of NiSO_4/γ-Al_2O_3 modified by HPW have excellent catalytic performance without the formation of dimethyl ether. The conversion rate of TAME is more than 99%. XRD,NH3-TPD and FT-IR results show that HPW and NiSO_4 have fine dispersity and catalytic stability on carrier surface. The catalysts contain both B acid and L acid. The suitable CB/CLpromotes TAME cracking and inhibits the formation of dimethyl ether by-product.