烧结烟气净化过滤脱硫脱硝一体化集成技术

This project aims at the high temperature sintering flue gas, and basic researches about the depth dedusting and filtering purification and desulfurization and denitration will be applied by using coupling integration technology. Focusing on desulfurization and denitration coupled with efficient dust removal integration technology in different flue gas flow, optimizing and matching parameters of desulfurization and denitration technology to make it applicable to flue gas treatment of different types, different amounts of flue gas and different contents of dust. Influence of temperature on the coupling integration techniques of different conditions is studied to determine the optimum operating temperature and the integrated coupling technology of waste heat utilization of high temperature flue gas and desulfurization, denitration and dust removal is developed. Based on rare earth catalytic desulfurization and denitration and rare earth porous ceramic material, coupling integration technology which handling PM2.5 and demonstration line device are researched. Concentration field, temperature and pressure field distribution will be studied through the establishment of the mathematical and physical model of the gas motion and heat transfer processes to reveal the regular pattern of the momentum transfer energy transfer, mass transfer and chemical reaction of desulfurization and denitration between the gas and the dust particles. According to the intrinsic characteristics of remained energy in the high temperature flue gas, the mechanism of action and conversion of heat and mass interaction will be committed to achieve the goal of efficient conversion and utilization of high temperature afterheat. Finally it will provide a theoretical basis and key technical parameters for the filtering sintering flue gas and desulfurization and denitration integration technology, which can deal with the dust particles up to 0.5 um.

针对烧结高温烟气，采用耦合集成一体化技术，开展深度除尘及过滤净化和脱硫脱硝关键技术的应用基础研究。重点研究不同烟气流量下脱硫脱硝与高效除尘耦合一体化技术，脱硫脱硝工艺技术参数的优化匹配，使之可适用于不同类型、不同烟气量和不同含尘量的烟气治理；研究不同工况下温度对耦合一体化技术的影响，确定最佳工作温度，研发出高温烟气余热利用与脱硫脱硝除尘的集成耦合技术；研发基于稀土催化脱硫脱硝与稀土微孔陶瓷材料处理PM2.5耦合一体化技术及示范线装置。通过气体运动和传热过程的数学物理模型的建立，研究浓度场、温度场和压力场分布，揭示气体以及粉尘颗粒之间的动量传输、能量传输、质量传输和脱硫脱硝化学反应的规律。从高温烟气余能的本征特性出发，致力于热质相互作用与转换的机理，实现高温余热高效转化与利用的目标。为处理粉尘颗粒可达到0.5微米和烧结烟气净化过滤脱硫脱硝一体化集成技术，提供理论基础和关键技术参数。

针对烧结高温烟气，采用耦合集成一体化技术，开展深度除尘及过滤净化和脱硫脱硝关键技术的应用基础研究。重点研究不同烟气流量下脱硫脱硝与高效除尘耦合一体化技术，脱硫脱硝工艺技术参数的优化匹配，使之可适用于不同类型、不同烟气量和不同含尘量的烟气治理；研究不同工况下温度对耦合一体化技术的影响，确定最佳工作温度，研发出高温烟气余热利用与脱硫脱硝除尘的集成耦合技术；研发基于稀土催化脱硫脱硝与稀土微孔陶瓷材料处理PM2.5耦合一体化技术及示范线装置。通过气体运动和传热过程的数学物理模型的建立，研究浓度场、温度场和压力场分布，揭示气体以及粉尘颗粒之间的动量传输、能量传输、质量传输和脱硫脱硝化学反应的规律。从高温烟气余能的本征特性出发，致力于热质相互作用与转换的机理，实现高温余热高效转化与利用的目标。为处理粉尘颗粒可达到0.5微米和烧结烟气净化过滤脱硫脱硝一体化集成技术，提供理论基础和关键技术参数。.基本上按计划完成了上述研究内容，并拓展到焦炉等高温冶金烟气的深度除尘及过滤净化资源化和低温无氨催化脱硫脱硝研究。发表论文17篇，申请国家发明专利3项，授权2项实用新型专利，撰写的2本专著得到本项目的资助，参加国际会议交流10人次，国内学术会议交流11次，项目的部分内容“循环水复合管膜高效过滤净化技术的研发”通过了天津市科学技术评价中心组织的技术签定，评价委员会认为该项研究成果总体技术达到了国际先进水平。