垃圾焚烧烟气超低排放全流程工艺选择

Whole Process Selection of Ultra-low Off-gas Emission of Waste Incineration

生活垃圾焚烧过程中会产生大量含有污染物的焚烧烟气。针对未来垃圾焚烧烟气污染物超低排放的要求,本文将深度脱硫技术和脱硝技术进行工艺组合,介绍了SCR脱硝联合湿法脱酸消白全工艺流程、配套声波测温系统的高效SNCR脱硝联合湿法脱酸全工艺流程以及PNCR脱硝联合湿法脱酸全工艺流程的流程、原理、优缺点等,最后给出3种推荐全流程技术路线。

In the process of domestic waste incineration, a large number of off-gas containing pollutants is produced. Aiming at the requirements of ultra-low emission of waste incineration off-gas pollutants in the future, this paper combined the deep desulfurization technology and the deep denitrification technology, introduced process, principles, advantages and disadvantages of the whole process of SCR denitrification combined with wet deacidification and eliminating white mist, the whole process of efficient SNCR denitrification combined with wet deacidification with acoustic temperature measurement system and the whole process of PNCR denitrification combined with wet deacidification. By comparing the above off-gas cleaning process solutions, three recommended technical routes of the whole process were given.