LOW PRESSURE CIRCULATING FLUIDIZED BED REACTOR FOR THE PLASMA TREATMENT OF GRANULAR PARTICLES

摘要：

　　A Circulating Fluidized Bed reactor operating at low pressure was built to circulate wheat grains, and a non-thermal plasma was ignited in the riser tube to reduce microbial contamination on the grains surface.To understand the complexity of pneumatic conveying of granular particles at low pressure conditions, we established a model to predict pressure drop and particle velocity and compared the findings with experimental results.Good agreement was found between model and experiments, and simulations show that pressure drop is dominated by particle gravity, while particle velocity is defined by gas particle friction and particle gravity.Furthermore, simulations explain the effects of variation in gas flow rate, particle mass flow rate and pressure level, which strongly influence pressure drop and particle velocity.

作者: Denis Butscher Timon Cernoch Philipp Rudolf von Rohr

作者单位: Institute of Process Engineering,ETH Zurich,8092 Zurich,Switzerland

会议类型: 国际会议

会议名称: The 11th International Conference on Fluidized Bed Technology(CFB-11)(第十一届流化床技术国际会议)

会议地点: 北京

会议语种:英文

页码: 181-186

在线出版日期: 2014-05-14（万方平台首次上网日期，不代表论文的发表时间）