轻质C_5加氢工艺研究  

Study on Hydrogenation Process of Light C_5 Fraction

作　　者：王萍[1] 叶军明[1] 曹强[1] 史小良[1] 瞿卫国[1] 

机构地区：[1]中国石化上海石油化工股份有限公司化工研究所,200540

出　　处：《金山油化纤》2005年第1期27-30,共4页Petrochemical Technology in Jinshan

摘　　要：对轻质C5加氢反应的影响因素进行了研究。结果表明,在用饱和烷烃将轻质C5稀释至双烯烃和炔烃的质量分数为12.0％-15.0％,加氢压力为2.0-3.0 MPa,体积空速不大于3.2 h-1,氢气与轻质C5的量比不小于0.59条件下,双烯烃、炔烃转化率均达到100%,单烯烃转化率在98％以上。利用SPYRO专用软件对加氢后的轻质C5作为乙烯裂解料的裂解结果进行了模拟计算,乙烯、丙烯和丁二烯的收率分别为31.8％、17％和5％,表明加氢后的轻质C5是一种良好的乙烯裂解原料。The process of hydrogenation of light C5 fraction was investigated in the presence of Ni/Al2O3 - SiO2 catalyst and the hydrogenation conditions and catalytic stability were examined in a fixed - bed reactor. The results indicated that by diluting the light C5 with saturated alkanes to 12.0% - 15.0% diolefin content before hydrogenation , both the conversions of diolefines and mono - olefins could reach respectively almost 100% and over 98% at 2. 0 - 3. 0 MPa when the volume space velocity was less than 3.2 h-1 , and the n( H2 ) /n( C5 ) was over 0. 59. After hydrogenation of C5 fraction , the olefins and alkanes content in the saturated C5 fraction were respectively less than 1% and over 99%. The steam - cracking yields of the saturated C5 fraction were calculated by SPYRO software, the yields of ethylene, propylene, and 1 ,3 - butediene were respectively 31. 8% , 17% and 5% . The saturated C5 fraction could be used as premium steam cracking feedstock.

关 键 词：轻质 加氢工艺 炔烃 转化率 双烯 乙烯裂解 烯烃 空速 加氢反应 压力 

分 类 号：TE624[石油与天然气工程—油气加工工程] TQ175.75[化学工程—硅酸盐工业]