气流床高温煤气脱硫试验研究

Study on hot coal gases desulfurization by entrained flow bed

介绍了煤炭科学研究总院自主开发的高温煤气脱硫工艺系统及利用研制的钛酸锌脱硫剂进行了脱硫试验,试验结果表明煤气在温度550℃～650℃,入口煤气中H_2S含量0.1%～0.3%时,出口硫化物总量能够控制在20mg/m^3以下,脱硫效率大于99%。脱硫后的煤气经过陶瓷过滤器除尘后,粉尘含量低于10mg/m^3,净化后的煤气中的粉尘含量能够满足煤气化联合循环发电技术(IGCC)等先进煤转化技术的要求。

The hot coal gases desulfurization process system is developed by China Coal Research Institute and desulfurization test useing self-developed sulfided zinc titanate sorbent are introduced. The test results show that： when the H2S concentration of inlet gases is 0.1 percent to 0.3 percent under 550℃ -650℃, the H2S concentration of outlet gases can be controlled within 20mg/Nm^3, and the desulfurization efficiency is over 99 percent. After dust cleanup through the ceramic filter of the desulfurized gases, the dust concentration is less than 20mg/Nm^3, and the dust concentration can meet advanced coal conversion technology requirements like IGCC etc.