Abstract The effects of reaction temperature, space-time and feeding ratio on the methanol-pente-ne coupled reaction were investigated over H-ZSM-5 catalyst in an isotherm fixed-bed reactor. The appropriate reaction temperature is 420—500 ℃, within this range the conversion of methanol can reach 100%. Rising temperature can enhance the conversion of methanol and propene selectivity effectively, and also reduce generation of by-products, which are alkanes and aromatics. The space-time won’t influence the conversion of methanol. When it is decreased, the product distribution is enhanced effectively. The limit range is above 5 (g·h)/mol, otherwise the reaction residence time is too short for propene yield. The byproducts are reduced by coupling reaction compared with either separated feed. When the ratio of methanol to pentene is increased, the propene selectivity is enhanced while the conversion of pentene is lessened. The by-products are reduced to minimum when the ratio is 2.
HU Hao, GUO Wen-Yao, LUO Man, XIAO Wen-De.Experimental Study on Preparation of Propene by Coupled Reaction of Methanol and Pentene[J] Chemcial Industry and Engineering, 2014,V31(1): 8-13
2014, Vol. 31 
