STUDY ON THE NOX EMISSION FROM CO-FIRE OF PLASTIC POWDER AND BIOMASS IN CFB
A circulating fluidized bed(CFB) is build to study the NOx emission rules of biomass and waster plastic co-combustion. The experimental results show that NO is the major content of NOx emission, and the emitted concentration improves with the rising of temperature, while, decreases with the rising of excess air coefficient, but the rising gas velocity also aggravates the in-completely combustion. After mixed with biomass, the NOx emission concentration falls down with the rising of biomass and plastic mixture ratio, and lowers than the weighted average, which indicates some gas and volatile emitted during biomass pyrolysis have an inductive effect on NO formed by plastic combustion. Combined with the pyrolysis mechanism of biomass, a NOx formation model concerned with the CFB feature was brought out, and the inter-coupler of co-combustion on the NOx emission is analyzed. The simulation results have a good agree with the experiment data, and reveal that the CO and char actors the major roles in the NO reduce, while the homogeneous gas phase reaction has slight affection both on the produce and reduction of NOx.
Biomass Plastic powder Co-fire NOX emission Circulating fluidized bed
Yanfen LIAO Xiaoqian MA
Electric Power College, South China University of Technology., Guangzhou 510641, China
国际会议
第六届煤燃烧国际会议(The 6th International Symposium on Coal Combustion)
武汉
英文
491-496
2007-12-01（万方平台首次上网日期，不代表论文的发表时间）