SINOALKY硫酸烷基化装置工艺优化及节能措施  

Process optimization and energy saving measures of SINOALKY sulfuric acid alkylation unit

作　　者：于吉平[1] 姚建辉 董明会[2] Yu Jiping;Yao Jianhui;Dong Minghui(SINOPEC Shijiazhuang Refining&Chemical Company,Shijiazhuang,Hebei 050000;SINOPEC Research Institute of Petroleum Processing,Beijing 100083)

机构地区：[1]中国石油化工股份有限公司石家庄炼化分公司,河北省石家庄市050000 [2]中国石油化工股份有限公司石油化工科学研究院,北京市100083

出　　处：《炼油技术与工程》2020年第12期50-54,共5页Petroleum Refinery Engineering

摘　　要：通过对某装置SINOALKY硫酸烷基化工艺运行能耗数据进行分析,发现通过工艺调整,将脱异丁烷塔操作压力由0.65 MPa降至0.45 MPa,回流量由123 t/h降至44 t/h后可降低1.0 MPa蒸汽消耗5.5 t/h;通过合理调整烷基化反应器的操作参数,烷烯比由14∶1降至10∶1可降低1.0 MPa蒸汽消耗5 t/h,电耗较设计值降低50%;通过将制冷压缩机出口压力由0.74 MPa降至0.5 MPa,可降低汽轮机3.5 MPa蒸汽消耗13 t/h。通过投用精密聚结器,实现切出产物碱洗水洗流程,一方面可降低1.0 MPa蒸汽、除盐水、电、新鲜水等公用工程介质的消耗;另一方面可减少含盐污水外排量、降低酸碱消耗,年综合效益约500万元。采取上述措施后装置总能耗降低约30%。The energy consumption data of SINOALKY sulfuric acid alkylation process in a unit is analyzed.When the operating pressure of the deisobutanizer is reduced from 0.65 MPa to 0.45 MPa and the return flow is reduced from 123 t/h to 44 t/h,the 1.0 MPa steam consumption can be reduced by 5.5 t/h.When the ratio of paraffin to olefin is reduced from 14∶1 to 10∶1,the 1.0 MPa steam consumption can be reduced by 5.0 t/h,and the power consumption can be reduced by 50%compared with the design value.When the outlet pressure of refrigeration compressor is reduced from 0.74 MPa to 0.5 MPa,the 3.5 MPa steam consumption of steam turbine can be reduced by 13 t/h.The use of precision coalescer can realize the alkali washing and water washing process of products,which can reduce the consumption of 1.0 MPa steam,desalted water,electricity,fresh water,acid and alkali,as well as the discharge capacity of salty sewage,with an annual benefit of about 5 million yuan.After taking the above measures,the total energy consumption of the unit will be reduced by about 30%.

关 键 词：SINOALKY 硫酸烷基化 工艺节能 反应系统 分馏系统 精制系统 制冷系统 

分 类 号：TE96[石油与天然气工程—石油机械设备]