STUDIES ON PREPARATION OF GAS FOR METHANOL SYNTHESIS BY METHANE REFORMING WITH STEAM AND CO_2 Ⅱ.ACTIVITY AND STABILITY OF SUPPORTED NICKEL CATALYSTS

lntroductionMethanolissynthesizedbyblendgasofCOandH2.FeedstockgasformethanolsynthesismustbeinlinewiththefollowingstoichiometricrelationtR=(H2-Co2)/(Co CO2)52Inaddition,thecontentofCo2shouldbelowerthan8%ll1.MethanereformingwithsteamandCO2canproducethequalifiedsynthesisgasformethanolsynthesisinindustry.ComParedwithtndtionalsteaInrefotheng,thefeedstocksynthsisgasproducedbymethanreformingwithsteamandCO2docsnotneedseparaingandcanbedirectlyusedinmethanolsynthesis.Therefore,thecostofmethanolca…

STUDIES ON PREPARATION OF GAS FOR METHANOL SYNTHESIS BY METHANE REFORMING WITH STEAM AND CO2 II.ACTIVITY AND STABILITY OF SUPPORTED NICKEL CATALYSTS

An experimental preparation of feedstock gas for methanol srnthesis by methane reforming with steam and CO2 has been investigated with newly prepared nickel-based catalyst SYM-1 in a simulated industrial theperature vanable fixed bed. It has been shown tha SYM-1 Catalyst was not deactivated during 500 h test and the synthesis gas for methanol production in industry can be prodaced This catalyst had excellent activity and the methane conversion reahed 95%. There was almost no carbon deposition on SYM-1 catalyst after lifetime test, and it had good mechanic strength. Pore distribution and XRD characterization show that the structure and properties of SYM-1 catalyst remained unchanged during lifetime test.