185第3期宋艳红等.烯烃催化裂解装置优化运行探讨6结束语根据烯烃催化裂解装置目前实际运行情况,综合装置不同切换周期经济性对比分析,反应器最佳切换周期为5d。根据相同反应时间内不同反应温度与粗丙烯产量、双烯总收率关系,建议反应后期操作温度提高5~10℃可提高双烯收率。结合AspenPlus软件建立脱丙烷塔及脱丁烷塔的模拟模型,建议脱丙烷塔回流比调整为2.57,脱丁烷回流比调整为0.72最为经济。参考文献[1]任丽萍,腾加伟,赵国良,等.不同温度区间碳四烯烃催化裂解制丙烯的反应规律[J].化学反应工程与工艺,2015,31(1):86-88.[2]刘琰,齐静,雍晓静.C4烯烃催化裂解制丙烯的研究进展[J].合成材料老化与应用,2020,49(5):123-126.[3]王定博,焦海超,邵华伟,等.碳四烯烃制丙烯催化剂及其工业应用[J].工业催化,2019,27(10):67-72.[4]杨榕,魏莎,张超.C4+烯烃催化裂解技术研究进展[J].化工管理,2019(21):114-115.ASTUDYONOPTIMIZATIONOFOLEFINFCCPLANTOPERATIONSongYanhong,YuYong(Zhang'anUnitedCoalChemicalCo.,Ltd.,Huainan232092)Abstract:ThemainprocessflowofolefinFCCplantwasintroduced.TheinfluenceofFCCreactionshiftcycle,thereactiontemperature,andtherefluxratioofcolumnstotheoperationoftheplantwasanalyzed.TheoperationoptimizationplanforolefinFCCwaspresented.Theanalysisshowsthattheoptimalshiftcycleisfive(5)days;raisingthetemperature5~10℃atthelateroperationperiodcanincreasetheolefinyield;therefluxratioofdepropanizerbeingadjustedto2.57anddebutanizerto0.72willyieldthebesteconomicbenefit.Keywords:FCC;shiftcycle;reactiontemperature;refluxratio;operationoptimization[2]陈毓民,王波,汪飞,等.壳牌煤气化装置磨煤机密封气体研究[J].广州化工,2013,41(15):215-216.OPTIMIZATIONOFSEALINGMODEOFMIDDLESPEEDCOALMILLINSE-GASIFIERYangyang(Zhong'anUnitedCoalChemicalCo.,Ltd.,Huainan232090)Abstract:ThispapermainlyanalyzedthecharacteristicsofthesealingsystemofcoalmillinSEpulverizedcoalgasificationunit,analyzedthemainreasonsforlargenitrogenconsumptionandthedifficultyinoxygencontentcontrolduringthecommissioning,andputforwardsuggestionsforoptimizingthesealingsystem.Throughcomparisonandanalysis,thecoalmillcaneffectivelyre...