新型干法脱硫剂的性能研究与工业应用

Performance Research and Industrial Application of New Dry Desulfurizer

水泥生产常用的干法钙基脱硫剂存在成本高、脱硫效率低、制备工艺复杂等问题,为实现钙基脱硫剂的降本增效,以Ca(OH)_2作为脱硫剂的钙基基底,充分模拟含SO2的工业烟气,研究了脱硫剂比表面积以及掺加活性组分、催化组分、工业矿粉等对脱硫剂脱硫性能的影响,开发了掺杂工业矿粉的新型干法脱硫剂。结果表明,在Ca(OH)_2中掺入15%氨基类活性物质、5%铁钛矿以及5%毒重石所制备的新型干法脱硫剂具有良好的脱硫效果,工业应用验证了该脱硫剂脱硫效率高达90%以上,无副产物排放,且成本较低,市场应用前景广阔。

The commonly used dry calcium-based desulfurizers in cement production face issues such as high costs,low desulfurization efficiency,and complex preparation processes.To achieve cost reduction and efficiency improvement,this study explores the use of Ca(OH)2 as a calcium-based desulfurizer substrate,fully simulating industrial flue gas containing SO2.Experiments were conducted to investigate the effects of specific surface area of the desulfurizer,as well as the incorporation of active components,catalytic components,and industrial mineral powders on desulfurization performance.A novel dry desulfurizer was developed by doping industrial mineral powder.The results indicate that the newly developed dry desulfurizer,which incorporates 15%amino-based active substances,5%ilmenite,and 5%barite into Ca(OH)2,exhibits significant desulfurization efficacy.Industrial application validation has shown that this desulfurizer achieves a desulfurization efficiency of over 90%,with no by-product emissions and low cost,thereby presenting broad market application prospects.