规整丝网填料旋转填充床的气相压降特性及脱硫性能

采用空气-水体系，对装有4种不同规格规整丝网填料的旋转填充床的压降特性进行了实验研究，考察了转速、气体流量、液体流量等操作参数及填料特性对气相压降的影响规律，并与传统不锈钢波纹丝网填料旋转填充床压降进行了比较. 结果表明，装有规整丝网填料的旋转填充床压降可降低35%~70%. 进一步采用压降较低的规整丝网填料以(NH4)2SO3为吸收剂进行氨法脱硫性能研究，结果表明，随转子转速和(NH4)2SO3浓度增大，SO2脱除率升高；随进气口SO2浓度升高及气液比增大，SO2脱除率降低；SO2脱除率最高可达97%，可满足国家排放标准.

Gas Pressure Drop and Desulfurization Performance of a Rotating Packed Bed with Structured Wire Mesh Packing

Gas pressure drop of the rotating packed bed (RPB) with four structured wire mesh packings was studied using air-water as working system. The effects of operating parameters, such as rotational speed, gas flow rate, liquid flow rate, and characteristics of packing on gas pressure drop were investigated. Comparative experiments were conducted in the RPB with traditional stainless steel wire mesh packing. Experimental results showed that gas pressure drop of the RPB with the structured wire mesh packings was 35%~70% lower than that of the RPB with traditional wire mesh packing. Moreover, the desulfurization performance of the RPB equipped with the structured wire mesh packing which had a lower gas pressure drop was studied with (NH4)2SO3 as absorbent. Experimental results indicated that the SO2 removal efficiency increased with increasing of rotational speed and (NH4)2SO3 concentration, decreased with increasing of SO2 inlet concentration and ratio of gas to liquid. The SO2 removal efficiency could be up to 97% under the experimental conditions. The outlet SO2 concentration could meet the demand of the emission standard of pollutants for sulfuric acid industry.