Synthesis Of Syngas By Catalytic Reforming Of Coke Oven Gas And CO₂over Carbon Material-ni Catalyst

This paper put forward the systematically study on the production of syngas from the reformingof carbon dioxide and coke oven gas using carbon material and Ni-based catalysts. The studyinvestigated the effect of some key parameters, such as reaction temperature, volumetric hourlyspace velocity（VHSV） and gas phenomenon, on the reforming reaction. Both the stability ofcatalysts and the properties of the carbon consumption were analyzed; Moreover, the mechanismand kinetics model of reforming of CH4-CO2with AC-Ni/Al2O3as catalyst were also established.The results show that carbon material has effectively effect on the reducing the sintering of Ni,carbon deposition on surface of catalysts and the yield of water, which can make AC-Ni/Al2O3hassignificant synergistic effect on the reforming reaction, higher catalytic activity and stability. H2incoke oven gas will lead to reverse water gas shift reaction, which will lower the conversion of CH4,and improve the conversion of CO2, but has little effect of CO. The action of carbon deposition andelimination of the blending catalyst over the stable reforming reaction is similar to single Ni/Al2O3,which has no significant carbon consumption. Then, over the mechanism and kinetics study, thehigh catalytic activity of carbon-Ni/Al2O3was proved in kinetics aspects. At last, it is expected thatthis study could provide some scientific guidance and technical support on production of syngasover reforming of coke oven gas and carbon dioxide.