摘要
设计了一种以等离子体为主加热热源,同时配合热电阻丝保温的新型流化床反应器。为了保证喂料均匀,采用了一种滚筒气力两级生物质粉末喂料器。通过冷态流化实验,得到了最小流化速度和操作流化速度。对玉米秸秆粉末的热解实验表明,喂料速率与温度对生物油产率有一定影响,随喂料速率增大而增大;随温度升高先增大后减小,在477℃左右液体产率最高。
A new type of fluidized bed system, in which a plasma flow jet was used as the major heating source and the electro-thermal as heat preservation, was developed, tested and improved according to a series of experiments. A two-step pulverized biomass feeder was designed to maintain feeding uniformly. The minimum fluidizing velocity and operating fluidizing velocity were obtained by experiments at cooling conditions. The studies on corn stalk showed that the feeding velocity and temperature had impacts on the yields of bio-oil which grew with the increasing of feeding velocity and went up at first and then declined with the temperature rising. The bio-oil yield occurred at about 477℃.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2007年第4期66-69,共4页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家自然科学基金资助项目(项目编号:50376031)
关键词
等离子体
流化床
设计
实验
Plasma flow jet, Fluidized bed, Design, Experiment
