超重力技术低温反应制备烷基化油工艺研究  

Study on preparation of alkylated oil by low temperature reaction with high gravity technology

作　　者：王小强[1] 蔡小霞[1] 程中克[1] 李博[1] 杨淑萍[1] Wang Xiaoqiang;Cai Xiaoxia;Cheng Zhongke;Li Bo;Yang Shuping(Lanzhou Petrochemical Research Center of PetroChina,Lanzhou,Gansu,China)

机构地区：[1]中国石油兰州化工研究中心

出　　处：《石油与天然气化工》2022年第2期31-35,共5页Chemical engineering of oil & gas

摘　　要：目的对超重力技术制备烷基化油进行小型实验室制备工艺条件优化研究。方法采用新型超重力反应器和特定的低温控制工艺,烷烯物质的量之比为10∶1、酸烃体积比为1.4∶1、反应系统压力为0.6 MPa、异丁烷冷机和正丁烯冷机温度为-3~4℃、超重力机夹套冷机温度为-6~0℃、浓H_(2)SO;冷机温度为0~5℃、超重力机转速为900~1100 r/min、连续烷基化反应时间为9 min。结果在上述工艺条件下,丁烯转化率≥97.0%,液相产物中 C_(8)组分质量分数≥87.98%。C_(5)、C_(6)、C_(7)和C_(9)^(+)组分质量分数分别低于0.84%、1.59%、1.60%和8.01%,制得烷基化油色谱法RON值不低于97.0。结论采用上述工艺条件烷基化效果较好,可以作为进一步放大试验研究的技术参考。Objective To optimize the preparation process of alkylated oil by high gravity technology in small laboratory.Methods A new type of high gravity reactor and specific low temperature control process were used.The molar ratio of n-butene to isobutane was 10∶1,the volume ratio of H_(2)SO;to hyarocarbon was 1.4∶1,the reaction system pressure was 0.6 MPa,the temperature of isobutane cooler and n-butene cooling machine was from-3℃to 4℃,the temperature of high gravity machine jacket cooling machine was from-6℃to 0℃,the temperature of concentrated H_(2)SO;cooling machine was 0-5℃,and the rotate speed of high gravity machine was 900~1100 r/min,continuous alkylation reaction was 9 min.Results Under the above conditions,the conversion rate of butene was more than 97.0%,and the mass fraction of C_(8)in liquid product was more than 87.98%.The mass fractions of C_(5)、C_(6)、C_(7)and C_(9)^(+)were lower than 0.84%,1.59%,1.60%and 8.01%,respectively,and the RON value of alkylated oil chromatography was not less than 97.0.Conclusion The alkylation effect is good under the above conditions,which can be used as a technical reference for the study of further scale-up experiments.

关 键 词：丁烯 异丁烷 超重力 低温烷基化 

分 类 号：TE624[石油与天然气工程—油气加工工程]