催化裂化汽油改质降烯烃并多产丙烯技术的工业化应用  

Commercial application of FCC naphtha reformulation for olefin reduction and more propylene production

作　　者：魏强[1] 杨光福[1] 王刚[1] 徐春明[1] 高金森[1] 

机构地区：[1]中国石油大学重质油国家重点实验室,北京102249

出　　处：《现代化工》2007年第11期55-58,60,共5页Modern Chemical Industry

基　　金：教育部新世纪优秀人才支持计划(NCET-04-0107)

摘　　要：在中国石油大庆炼化公司100万t／a重油催化裂化装置上进行了催化裂化汽油提升管改质降烯烃并多产丙烯技术的工业化应用试验。结果表明，改质后的汽油烯烃体积分数降低到35．0％以下，且辛烷值保持不变。与没有催化裂化汽油回炼的方案相比，当汽油改质的反应温度为425℃时，催化裂化汽油降烯烃过程的干气和焦炭很少，对整体产品分布影响不大；当汽油改质的反应温度在450℃以上时，总损失增加0．6％～1．3％，对整体产品分布有一定影响。随着汽油改质的反应温度的升高，液化气中丙烯含量大幅增加，质量分数最多增加14．96％，整个装置能耗增加了1．0～15．8kg／t。The FCC naphtha reformulation technique for olefin reduction and more propylene production is applied in the 1.0 Mt/a RFCC unit of Daqing Petrochemical Company. The result show that olefin content of the reformulated naphtha is below 35.0 v% and its RON is maintained. Compared with the scheme without the naphtha recycle,when the reaction temperature of naphtha reformulation is 425 ℃, the loss of dry gas and coke yield is a little and has little effect on the product slate of the unit. When the reaction temperature is above 450℃, the loss of dry gas and coke yield is about 0.6 wt% - 1.3 wt% and has a negative effect on the product slate. With the increase of reaction temperature, the propylene content in LPG increased by 14.96% and the energy consumption also increased by 1.0 - 15.8 kg/t.

关 键 词：催化裂化汽油 烯烃 改质 工业化 

分 类 号：TE624.4[石油与天然气工程—油气加工工程]