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减压蒸馏生物油与乙醇在ZSM-5/MCM-41上共催化裂化
引用本文:李美惠,马文超,毕亚东,陈冠益,陈慧.减压蒸馏生物油与乙醇在ZSM-5/MCM-41上共催化裂化[J].燃料化学学报,2015,43(3):309-314.
作者姓名:李美惠  马文超  毕亚东  陈冠益  陈慧
作者单位:1. Tianjin University of Technology, Tianjin 300384, China; 2. Tianjin University, School of Environmental Science and Engineering, Tianjin 300072, China
基金项目:国家自然科学基金(51036006, 51306131)。
摘    要:采用减压蒸馏生物油为原料,与无水乙醇2:3(质量比)混合,在固定床中ZSM-5/MCM-41分子筛上共催化裂化,考查了反应温度和质量空速(WHSV)对裂化产物的影响。对ZSM-5/MCM-41进行了NH3-TPD、BET、N2吸附-脱附等表征,对裂化气体产物通过气相色谱仪分析,减压蒸馏生物油和精制生物油采用气相色谱-质谱联用仪进行定量分析。结果表明,反应温度500 ℃、WHSV 3.75 h-1为反应优化工况。此反应条件下,精制生物油酸类物质从减压蒸馏生物油中的25.6%降至反应后的0.1%,效果显著,且精制生物油产率为46.8%,气体产物中CO2和CO的浓度共9.5%。

关 键 词:生物油  ZSM-5/MCM-41  共催化裂化  精制  
收稿时间:2014-08-22

Catalytic co-cracking of reduced pressure distillation of bio-oil and ethanol over ZSM-5/MCM-41
LI Mei-hui,MA Wen-chao,BI Ya-dong,CHEN Guan-yi,CHEN Hui.Catalytic co-cracking of reduced pressure distillation of bio-oil and ethanol over ZSM-5/MCM-41[J].Journal of Fuel Chemistry and Technology,2015,43(3):309-314.
Authors:LI Mei-hui  MA Wen-chao  BI Ya-dong  CHEN Guan-yi  CHEN Hui
Institution:1. Tianjin University of Technology, Tianjin 300384, China;
2. Tianjin University, School of Environmental Science and Engineering, Tianjin 300072, China
Abstract:The reduced pressure distillation of bio-oil and the ethanol with the mixing ratio of 2:3 by weight were subjected to catalytic co-cracking over ZSM-5/MCM-41 molecular sieve in a fixed-bed reactor. The effects of reaction temperature and WHSV on cracking products were investigated. The catalyst is characterized by NH3-TPD, BET, N2 adsorption and desorption. The gaseous products were analyzed by gas chromatograph, and reduced pressure distillation of bio-oil and the upgraded bio-oil were quantified by gas chromatograph-mass spectrometry. It is found that the optimum conditions for the upgrading of bio-oil are 500 ℃ of the reaction temperature and 3.75 h-1 of the WHSV, under which the acid substance in upgraded bio-oil is markedly reduced from 25.6% in reduced pressure distillation of bio-oil to 0.1% after upgrading. Meanwhile, the yield of upgraded bio-oil is 46.8%, and the concentration of CO2 and CO in the gaseous products is 9.5%.
Keywords:bio-oil  ZSM-5/MCM-41  catalytic co-cracking  upgrading
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