加氢裂化装置用能分析及节能措施(4)
发布时间:2021-06-06
发布时间:2021-06-06
中外能源
·96·
SINO-GLOBALENERGY2011年第16卷
本没有脱除。镇海炼化1.5Mt/a加氢裂化装置使用循环氢脱烃旋流分离器,循环氢中C5以上烃组分的脱除率为78.7%~94.6%,降低了循环氢的相对分子质量,可使循环氢纯度提高2.2%,同时也降低了循环氢压缩机的能耗。建议广州石化加氢裂化装
[7]
参考文献:
[1]李立权.加氢裂化装置工艺计算与技术分析[M].北京:中国
石化出版社,2009:505-529.
[2]蹇江海,孙丽丽.加氢裂化装置的优化设计探讨[J].炼油技术
与工程,2004,34(11):48-51.
[3]李立权.加氢裂化装置操作指南[M].北京:中国石化出版社,
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[4]戴宝华,张英.加氢裂化装置用能三环节分析及改进[J].当代
化工,2007,36(1):33-36.
置也采用旋流脱烃方法,进一步提高循环氢纯度。
5结语
广州石化加氢裂化装置通过贫液泵更换小叶轮、新氢压缩机应用HydroCOM气量调节系统、原料热进料、提高新氢纯度等节能改造,以及维持适宜氢油体积比,降低热高压分离器和分馏进料加热炉温度,降低主汽提塔压力等操作优化,装置能耗从2008年的1523MJ/t降至2010年的1150MJ/t。建议下一步通过增加变频电机、低温热利用、采用旋流脱烃等措施进一步降低能耗。
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[7]王铁刚,徐效梅,姚淑香.循环氢夹带高分油的分离研究[J].
当代化工,2010,39(3):237-238.
(编辑常雪红)
AnalysisofEnergyEfficiencyofHydrocracking
UnitsandEnergy-SavingMeasures
YuChangqing
(SINOPECGuangzhouCompany,GuangzhouGuangdong510725)
[Abstract]SinopecGuangzhouCompany′s1.2Mt/ahydrocrackingunit,designedbyLuoyangPetrochemicalEn-gineeringCompany,usestheFF-26/FC-26one-stageseriesfullcirculationhydrocrackingtechnologydevelopedbytheFushunResearchInstituteofPetrochemicalProcessing.Theunit′senergyconsumptionhadlongstayedhighsinceitwentintooperation.Byanalyzingthedifferentcomponentsoftheenergyusebytheunit,re-searchersfoundthatelectricityaccountedfor46%-49%oftheunit′sactualenergyconsumption,fuelaccount-edfor23%-29%andsteamaccountedfor14%-16%,allmuchhigherthanthedesignedspecifications.Ase-riesofmeasuresweretakentooptimizetheperformanceoftheunitincludingreplacingtheimpellerofthehigh-pressureleanaminepumpwithasmallerone,introducingtheHydroCOMairregulatingsysteminfreshhydrogencompressors,feedinghotfeedstock,raisingthepurityoffreshhydrogen,maintaininganappropriatehydrogen/oilratio(atabout1000),reducingtemperatureforthehigh-temperature,high-pressuresegregatorandthefeedheaterforthefractionationcolumn,loweringpressurefortheprimarystrippingcolumnandraisingtheloadfactoroftheunit.Asaresult,theunit′senergyconsumptiondroppedto1150MJ/tin2010from1523MJ/tin2008.Thisarticlerecommendssomeadditionalmeasurestofurtherreducetheunit′senergycon-sumption,includingaddingvariablefrequencymotors,recoveringlow-temperatureheatandintroducingvortexdealkylationtechnology.
[Keywords]hydrocrackingunit;energyconsumption;energysaving;measures