简介:TheS-RHTtechnologyisdevelopedbyFRIPPforresiduehydrotreatinginthefixedbedinordertoprocessthehighsulfurcrudeandincreasetheyieldoflightdistillates.Thetechnologycanbeusedfortreatingvariouskindsofatmosphericresidues(AR)orvacuumresidues(VR)withatotalmetalcontentlessthan150ppmundertheoperatingconditionsofatemperaturerangingfrom360-410℃,ahydrogenpartialpressureof14-15MPa,aLHSVof0.20-0.30h-1andahydrogentooilratioof700-1000.AcertainamountoflightproductscanbeobtainedandthehydrotreatedatmosphericresiduecanfullymeettheneedsforthefeedstocktoRFCCorablendingfeedstocktoFCC.BasedontheS-RHTtechnology,a2Mt/aresiduehydrotreatingunithasbeenconstructedandsuccessfullystartedupatMaomingPetrochemicalCompanybytheendof1999.
简介:TheethanecrackeratasteamcrackerofYangziPetrochemicalCompany(YPC)hasbeensafelyoperatingformorethan100dayssinceapplicationofdomesticN360cokeinhibitorstartingAugust28,2004tosetanewrecordontheoperatingcycleofethanecracker,whichhasrevealedgreatsuccessincommercialapplicationofthisinhibitor.
简介:探讨了N-取代-4-氨基邻苯二甲酰亚胺的合成方法,以4-硝基邻苯二甲酰亚胺为起始原料,碳酸钾为缚酸剂,与6种卤代试剂在DMF中发生N-取代反应,生成相应的N-取代硝基物.硝基物经氯化亚锡在盐酸体系中还原,得到6种N-取代-4-氨基邻苯二甲酰亚胺.
简介:Bytheendof1998Chinaboasted220refinerieswithatotalcrudeprocessingcapacityof262Mt/a.Theaveragerefinerysizeatthattimewas1.194Mt/a.Refinerieswithprocessingcapacityexceeding5.0Mt/aaccountedforonly21.26%,whilethecapacityofsinglerefiningunitswerealsosmallthatcouldnotconformwiththeeconomyofscale.China'srefiningindustryisfacedwithatoughtaskofstructureadjustment.