Based on the existing SNCR denitration system,reinforced denitration by PNCR(polymer non-catalytic reduction)was carried out on a 400 t/d municipal solid waste incinerator.The results show that flu gas temperature and oxygen content fluctuate inversely as time forward.Flu-gas temperature is the key fac-tor to the efficiency of denitration efficiency.PNCR reinforced denitration can further reduce NOx emission concentration to no higher than 100 mg/Nm3 and NH3 emission concentration is stably kept below 5 mg/Nm3.Operating cost of PNCR denitration is about 81×104 yuan per year.With simple system composition,short response time as well as stable and reliable operation,SNCR+PNCR reinforced denitration system should be most suitable for the upgrading of the existing municipal waste incinerating plant with respect to the flu-gas denitration.
关键词
垃圾焚烧/非催化还原脱硝/PNCR脱硝
Key words
municipal waste incineration/selective non-catalytic reduction denitration/PNCR denitration
维普
万方数据