摘要
使用双颗粒流化床反应装置,对松木生物质进行了连续催化反应,选用CoMo-B和硅砂这2种流化介质,调查了氦气、氢气以及甲烷不同反应气体分别在不同流化介质作用下以及混合气体中氢气分压对热解产物的分布及其收率的影响。实验结果表明:在硅砂条件下,热解产物主要受温度的影响,在氦气和1173K高温下,IOG的分布主要以一氧化碳为主,其收率到达37.78wt%,daf,轻质芳烃HCL为3.10wt%,daf。但在催化剂CoMo-B作用下,适度的催化加氢有利于反应产物的控制,在863K下,轻质芳烃HCL和碳氢化合物气体HCG可达到6.29wt%,daf和15.43wt%,daf。采用工业用炼焦煤气作为加氢气体,在催化剂的作用下可以实现生物质中温连续催化加氢制取化学品的新过程。
Catalytic pyrolysis of pine biomass was carried out by using a powder-paticle fluidized bed, in which used Co- Mo-B catalyst and silica sand as the medium particle, the effects of helium, hydrogen and methane or hydrogen partial pressure of the mixed gases on the pyrolysis product distribution and yield were investigated, respectively. It is found that in the case of silica sand, the pyrolysis products was controlled by the temperature, the IOG distribution was mainly CO and its yield reached 37.78wt%, daf, and the light aromatics was 3.10wt%, daf. In the case of CoMo-B, mild hydrogenation would be easy to control the pyrolysis products, and at 863K, not only the light aromatics yield reached 6.29wt%, daf, but also 15.43wt%, daf of the hydrocarbon gas was obtained. The new conversion process of the biomass to the chemicals by catalytic hydrogenation would be developed using industrial coking coal gases as hydrogenation gas source at the medium temperature.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2010年第12期1543-1548,共6页
Acta Energiae Solaris Sinica
基金
天津市科委项目(05YFJMJC12600)
关键词
生物质
催化热解
BTX
流化床
biomass
catalytic pyrolysis
BTX
fluidized bed
