The V-P/HZSM-5 catalyst was prepared by impregnation method using HZSM-5 zeolite as the carrier.Its catalytic activity was examined on dehydration of bio-ethanol in a self-designed fluidized bed reactor to manufacture...The V-P/HZSM-5 catalyst was prepared by impregnation method using HZSM-5 zeolite as the carrier.Its catalytic activity was examined on dehydration of bio-ethanol in a self-designed fluidized bed reactor to manufacture ethylene.The effects of dehydration conditions on catalytic behaviors were investigated.The results showed that the V-P/HZSM-5 catalyst demonstrated good activity for bio-ethanol dehydration.Both bio-ethanol conversion and ethylene selectivity were over 90%under the following reaction conditions:a P/V atomic ratio of 7.5,a catahst calcination temperature of 300℃,a reaction temperature of 220℃,a bio-ethanol flow rate of 0.1 mL/min.and a catalyst dosage of 3.0 g.Furthermore,the catalyst exhibited excellent catalytic stability and regeneration capability.展开更多
基金was financially supportedby the National Science and Technology Support Project(No.2006BAE03B01-08)the New Century Excellent Tal-ent Project of Ministry of Education(No.NCET-04-0614)the Science and Technology Project of Education De-partment of Fujian Province(No.JB06079).
文摘The V-P/HZSM-5 catalyst was prepared by impregnation method using HZSM-5 zeolite as the carrier.Its catalytic activity was examined on dehydration of bio-ethanol in a self-designed fluidized bed reactor to manufacture ethylene.The effects of dehydration conditions on catalytic behaviors were investigated.The results showed that the V-P/HZSM-5 catalyst demonstrated good activity for bio-ethanol dehydration.Both bio-ethanol conversion and ethylene selectivity were over 90%under the following reaction conditions:a P/V atomic ratio of 7.5,a catahst calcination temperature of 300℃,a reaction temperature of 220℃,a bio-ethanol flow rate of 0.1 mL/min.and a catalyst dosage of 3.0 g.Furthermore,the catalyst exhibited excellent catalytic stability and regeneration capability.
