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当前位置: 首页 > 文章 > 油菜秸秆真空热解蒸气在线催化提质研究 农业机械学报 2014,45 (12) 234-240
Position: Home > Articles > Catalytic Upgrading of Pyrolytic Vapors from Rape Straw Vacuum Pyrolysis Transactions of the Chinese Society for Agricultural Machinery 2014,45 (12) 234-240

油菜秸秆真空热解蒸气在线催化提质研究

作  者：
樊永胜;蔡忆昔;李小华;俞宁;尹海云
单  位：
江苏大学汽车与交通工程学院
关键词：
油菜秸秆;热解;催化;响应面法;生物油
摘  要：
以HZSM-5分子筛为催化剂,在两段式反应器上对油菜秸秆真空热解产生的蒸气进行了在线催化提质研究。考察了催化温度、催化剂用量和HZSM-5硅铝比对产物产率的影响;并以油相产物产率为指标,采用响应面法对工艺参数进行了优化,并对在最优条件下制取的油相和水相产物进行了理化特性分析。研究结果表明,催化温度、催化剂用量和硅铝比对产物产率影响显著;获得最高油相产率的工艺参数为:催化温度为491.0℃、催化剂用量为33.2 g(生物质与催化剂质量比为0.301)、硅铝比为53,此时,油相产率达9.80%,与预测值9.90%较为接近;油相产物的H/C摩尔比、p H值和高位热值分别为1.518、5.15和33.80 MJ/kg,可用作动力机械燃料;水相产物(干基)的H/C摩尔比和高位热值分别为1.269和29.69 MJ/kg,同样具有较高的燃料品质。
译  名：
Catalytic Upgrading of Pyrolytic Vapors from Rape Straw Vacuum Pyrolysis
作  者：
Fan Yongsheng;Cai Yixi;Li Xiaohua;Yu Ning;Yin Haiyun;School of Automotive and Traffic Engineering,Jiangsu University;
关键词：
Rape straw Pyrolysis Catalysis Response surface methodology Bio-oil
摘  要：
The vapors directly catalyzed from vacuum pyrolysis of rape straw was investigated over HZSM-5 in a two-stage fixed-bed reactor to determine the effects of operating parameters on the product yields,including catalyzing temperature,biomass to catalyst mass ratio,and catalyst Si / Al ratio. The optimization of the oil phase yield was further conducted by employing response surface methodology( RSM). The statistical analysis showed that the operating parameters significantly affected the product yields. The optimal conditions for the maximum oil phase yield were obtained at catalyzing temperature of491. 0℃,biomass to catalyst mass ratio of 0. 301,and catalyst Si / Al ratio of 53. Confirmation runs gave9. 80% of oil phase yield compared with 9. 90% of predicated value. The upgraded bio-oil consisted of separable oil and aqueous phases. The H / C molar ratio,p H value and higher heat value( HHV) of the oil phase were 1. 518,5. 15 and 33. 80 MJ / kg,respectively. It showed that the oil phase had a higher yield and the qualities,which can be used as an engine fuel. The H / C molar ratio and HHV of the aqueous phase( dry basis) were 1. 269 and 29. 69 MJ / kg,respectively. The aqueous phase also had a high fuel value.

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