Catalytic Preparation Of Ni-Cu/CCA And Its Research Of Dehydrogenation Reaction Performance

With the development of science and technology, the demand of fossil energyincreases constantly. The global shortage of fossil energy escalates to be upgraded,while the environmental problems become increasingly prominent bring about by theconsumption of fossil energy. The development and utilization of new energy isimminent. The hydrogen energy is considered to be the main influence oftransforming the approach of the global economic development in the future, owningto its abundant resources, good Combustion performance, clean and pollution-free. Asthe Safe and effective storage technology of The hydrogen energy has become the keyrestrictions on the development of hydrogen energy, of which the organic liquidhydrogen storage technology is expected to achieve a breakthrough. This paperfocuses on the catalytic reaction process of dehydrogenation in the hydrogencarrier, methylcyclohexane.Preparing the CCA by the way covering the carbon extracting from glucose onthe surface of alumina through high temperature pyrolysis, while preparing differentvectors of the same active component as two catalysts, Ni/γ-Al2O3, and Ni/CCA,Ni-Cu/γ-Al2O3and Ni-Cu/CCA, are synthesized by impregnation method. To examinethe catalytic properties of the dehydrogenation reaction of methylcyclohexanol on theWFS-3015.Represents its surface morphology and internal structure by means ofvarious characterization methods performed by IR, TG, BET, SEM, XRD, etc.A significant change has occurred in the pore structure of alumina when thecarrier is coated with carbon which is beneficial to increase the activity and stabilityof catalyst by coating the γ-Al2O3with carbon. Adding the Cu promoter in makesdistribution of catalyst are dispersed and the particles of which are more uniform. Wecan conclude from the XRD analysis that the catalyst form a large number of Ni-Cualloy due to the addition of Cu.To evaluate the reaction performance of the catalyst by the methylcyclohexanedehydrogenation.At the same time the experiment optimizes the reaction conditions ofthe Dehydrogenation reaction of methylcyclohexanol by making use of the Catalytic,Ni-Cu/CCA, and the results show that: when the carrier is covered by carbon to10wt.%,the Ratio of metal active component Ni and Cu is10:1,the reactiontemperature is650K,Plus very few methylcyclohexane at the speed of0.015mL/min, the carrier gas flow rate of nitrogen is8mL/min, the reaction pressure is0.4MPa.Theuse of0.6g Ni-Cu/CCA, can increases the Conversion rate of methylcyclohexanedehydrogenate to95.27%, the selectance of the toluene, the reaction products,reaches almost100%.