摘要
研究了不同预处理条件下MgMo/MCM 2 2催化剂的乙烯和 2 -丁烯歧化制丙烯反应性能 ,考察了催化剂失活机理和再生条件 ,表明催化剂经氧化性气氛 (空气 )或惰性气体 (N2 )预处理后都表现出较高活性和稳定性 ,而氢气预处理却降低反应性能 ;催化剂积碳是催化剂失活的主要原因 ,失活催化剂于 5 5 0℃空气中烧碳后 。
Metathesis of ethylene and 2-butylenes to propylene on variously pretreated MgMo/MCM22 catalysts,was studied in a fix-bed flow reactor.After pretreated by O 2 or N 2 at 550 ℃ for desired time,MgMo/MCM22 catalyst presented good reaction performance,but poor when pretreated by H 2.Catalyst deactivation mainly due to coking of catalyst during reaction,however,it could be regenerated easily by decoking the catalyst in air at 550 ℃.
出处
《石油化工》
CAS
CSCD
北大核心
2003年第9期743-746,共4页
Petrochemical Technology
基金
国家自然科学基金资助项目
