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1、化工进展2016年第35卷增刊2CHEMICALINDUSTRYANDENGINEERINGPROGRESS·427·???????????应用技术???????????甲苯歧化装置热高压分离工艺研究及工业应用张英,薄德臣,陈建兵,高景山(中国石化抚顺石油化工研究院,辽宁抚顺113001)摘要:针对目前国内甲苯歧化装置反应产物气液分离过程普遍采用冷高压分离工艺导致装置用能不合理的现状,分析了热高压分离工艺的技术先进行以及装置改造成热高压分离工艺需要注意的问题;确定了能够准确分析甲苯歧化反应产物的分析方法及产物组成,利用ASPENPLUS流程模拟软
2、件分别对热高压分离工艺过程和冷高压分离工艺过程进行了模拟计算与对比,模拟计算结果表明,由冷高压分离工艺改成热高压分离工艺后对循环氢纯度几乎没有影响。通过热量核算,提出了基于热高压分离工艺的甲苯歧化装置新型换热流程。装置按照新流程改造后,装置运行平稳,工业应用结果表明采用该技术后可使1450kt/a的甲苯歧化装置单位能耗下降5.6kgEO/t,证明热高压分离工艺是可行的及新型换热工艺流程的节能优越性。关键词:模拟;生产;优化设计;甲苯歧化中图分类号:TE08文献标志码:A文章编号:1000-6613(2016)s2-0427-05DOI:10.16
3、085/.jissn.1000-6613.2016.s2.075Studyandapplicationofhothigh-pressuretechnologyintoluenedisproportionationcomplexZHANGYing,BODechen,CHENJianbing,GAOJingshan(FushunResearchInstituteofPetroleumandPetrochemical,SINOPEC,Fushun113001,Liaoning,China)Abstract:Coldhigh-pressuresepara
4、tiontechnologywhichresultedtotheincreaseofenergyconsumptionoftoluenedisproportionationcomplexwasnowwidelyusedintoluenedisproportionationcomplexreactionproductionseparationprocessinChina.Thetechnologyadvanceandtheproblemsneededtobenoticedwhenusinghothigh-pressureseparationtech
5、nologywereanalyzed.Anaccuratemethodforthedeterminationofreactionproductionwasestablished,andcompositionofreactionproductionwasdetermined.Thehothigh-pressureseparationprocessandcoldhigh-pressureseparationprocessweresimulatedseparatelywithASPENPLUS,andtheresultsindicatedthatrec
6、yclehydrogenconcentrationwasalmostnotchangedcomparedtocoldhigh-pressureseparationtechnology.Anewtechnologicalprocessoftoluenedisproportionationcomplexbasedonhothigh-pressureseparationtechnologywasdevelopedbythermalequilibrium.Afterrenovation,theunitrunnedsmoothly,andtheindust
7、rialapplicationresultsprovedthattheunitenergyconsumptionoftoluenedisproportionationcomplexcouldbedecreasedby5.6kgEO/tforthecomplexof1450kt/a.Therefore,thehothigh-pressureseparationtechnologywasfeasibleandthenewtechnologicalprocesswasofenergysavingadvantages.Keywords:simulatio
8、n;production;optimaldesign;toluenedisproportionationcomplex传统芳烃联合装置主
