炼油厂轻C_4烃加氢生产乙烯原料的工业试验  

Industrial test of hydrogenation of refinery's light C_4 fraction for producing ethylene pyrolysis material

作　　者：董海军[1] 田赟[1] 宋阳[1] 乔伟强[1] 

机构地区：[1]中国石油兰州石化公司助剂厂,甘肃兰州730060

出　　处：《石化技术与应用》2012年第4期326-331,共6页Petrochemical Technology & Application

摘　　要：为提高炼油厂轻C4烃的利用价值,中国石油兰州石化公司在正丁烷法顺酐装置加氢单元进行了3次工业试验,目的是生产出可作乙烯裂解原料使用的精制C4烃产品。考察了原料组成和主要工艺条件对加氢反应的影响。结果表明,中国石油兰州化工研究中心研发的LY-2005催化剂适合炼油厂轻C4烃加氢生产乙烯裂解原料使用;在适宜工艺条件下,加氢后可生产出总烯烃体积分数不大于1.5%的精制C4烃产品;原料的总烯烃、异丁烯体积分数分别为不大于40%、不大于15%时,推荐一反入口温度为120～130℃,新鲜C4烃进料量为2.0～3.5 t/h,V(氢气)/V(原料油)为350～450,C4烃循环量为3.5～6.0 t/h,反应压力为2.7～3.0 MPa。In order to improve the utilization value of refinery＇s light C4 fraction,3 industrial tests were conducted in the hydrogenation unit of n - butane method maleic anhydride plant to produce refined C4 hydrocarbon used as ethylene pyrolysis material. The effect of material composition and process conditions on hydrogenation reaction was investigated. The re- suits showed that the catalyst LY -2005 developed by Lanzhou Petrochemical Research Center of Pet- roChina was suitable to hydrogenation of light C4 fraction for producing ethylene material. When thevolume fractions of olefin and iso - butylene were no more than 40% and 15% respectively,the total vol- ume fraction of olefin in the refined C4 hydrocarbon was no more than 1.5% under the appropriate process condition of inlet temperature in the first re- actor 120 - 130℃ ,feeding level of flash C4 fraction 2.0 - 3.5 t/h, volume ratio of hydrogen to material oil 350- 450, circulation rate of C4 hydrocarbon 3.5 - 6.0 t/h, reaction pressure 2.7 - 3.0 MPa.

关 键 词：轻C4 加氢 工艺条件 精制C4 裂解原料 

分 类 号：TQ221.211[化学工程—有机化工]