半水煤气脱硫技改运行总结

Sum-Up of Operation of Updated Technology for Desulfurization of Semi-Water Gas

介绍了历年半水煤气脱硫技改的详细过程、运行参数,并对存在的问题进行了分析。改造后,脱硫效率达到99.50%以上,脱硫后气体中H2S质量浓度基本控制在0.010 g/m3以下,吨氨纯碱消耗由6.0 kg降至2.5 kg左右,系统阻力由6.0～8.0 kPa降至1.8～2.1 kPa。

A detailed description is given of the technological renovation of desulfurization of semi-water gas over the years and operation parameters, and an analysis is done of the existing problems. After the renovation the desulfurization efficiency reaches over 99.50%, after desulfurization the H2S mass concentration in the gas is essentially controlled at below 0.010 g/m3, the soda consumption per ton of ammonia decreases from 6.0 kg to about 2.5 kg, and the resistance in the system drops from 6.0- 8.0 kPa to 1.8 - 2.1 kPa.