摘要
以Ｌａ－ＺＳＭ－５沸石为基质，添加镁的氧化物和高温处理所制得的择形催化剂，能适应未加精制的催化裂化干气与甲苯烃化制取对甲基乙苯工艺过程；单程操作周期可达１５天，生成的甲基乙苯中对位的选择性占９０％，失活后的催化剂可烧炭再生。此外，还考察了反应条件对烃化反应的影响。
shapeselective catalyst based on ZSM5 zeolite containing Si,Al and La with addition of magnesium oxide and subsequent thermal treatment is used for the alkylation of toluene with FCC dry gas containing 10%～30% of ethylene.The reaction is carried out in an adiabatic bed reactor.The single pass operation cycle is 15 days,giving an ethylene conversion of 50%～85% and a selectivity of 90% to paramethyl ethylbenzene.The deactivated catalyst can be regenerated by burning off the carbon using conventional method.
出处
《石油化工》
CAS
CSCD
北大核心
1997年第12期800-803,共4页
Petrochemical Technology
