The Catalyst Study Of Methanol Low Temperature Decomposition

The process to produce synthetic gas (H2 and CO) by methanol decomposition is animportant research field in C1 chemical industry. In rescent years, the great interest has beencaused in the process of methanol decomposition because of it's wide application and specialadvantage, and which has become one of the research hotspots. The catalyst technology is thecritical problem of the process. The thesis is on the basis of generalizing predecessor' work, analyzed theory andmechanics and proceeded with technics. The aim is to devise and search for the catalyst withhigh activity at low temperature(200℃-390℃).However, catalyst'activity is relate with it'ssurface area, we adopted sol-gel method to take the place of co-precipitation by comparingwith some common catalyst preparation method in rescent years. We analyzed the reaction ofevery components and studied particle size influencing factors of technology conditions incatalyst according to the results of XRD,BET and size distribution characterization . Sol-gelmethod was proved feasibility through surface area difference of the two catalysts.1. Catalyst particle size was controlled , homogeneous nanometer particle was obtained bysol-gel methods.2. Some influence factors had been attained by exploring and studying sol-gel methodspreparation technology .3. Nanometer particles were abstained after the gelatin was cleaned, dryed anddecomposed.4. The results of size distribution ,XRD and BET showed that the size of ultrafine particleis between 72.5nm and 98.7nm and specific surface area is 65.0m~2/g.