凤山化工硝盐尾气综合治理技术研究与工程应用
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摘要
针对凤山化工硝盐尾气治理项目实施过程中出现生产系统阻力升高,硝盐产量下降,生产系统部分设备与新工况条件不匹配等情况,对尾气脱硝综合治理项目进行技术改造和工艺优化。通过及时确定反应参数、测定系统阻力变化、更换大风压转化风机、并联尾气吸收塔、并联尾气换热器、自控设置变更等持续改进的技术措施,在短期内恢复了硝盐产量,实现了安全运行和达标排放,完成了尾气处理装置与生产系统的适应性工程应用,实现了环境效益和经济效益的最佳结合,为装置后续尾气资源化回收和尾气二次预热提供经验借鉴。
In view of the existing problems in the treatment of nitrate tail gas, such as increases of system resistance,reduction of nitrate production, part of the production equipment to the new working condition matching, and the mismatching of etc., the tail gas denitration comprehensive treatment project were carried out. Some technologies, such as timely ensuring reaction parameters, determining the change of resistance, replacing the big wind pressure transformation blower, parallel ling exhaust gas absorption tower and the gas heat exchanger, and changing the automatic control sets etc.were implemented, thereby in the short term restoring the nitrate production, achieving the safe operation and standardized discharging, making the tail gas treatment plant adapt the production system, realizing best combination of the environmental benefits and economic benefits, as well as providing the reference for subsequent resource recovery and second preheating of tail gas.
In view of the existing problems in the treatment of nitrate tail gas, such as increases of system resistance,reduction of nitrate production, part of the production equipment to the new working condition matching, and the mismatching of etc., the tail gas denitration comprehensive treatment project were carried out. Some technologies, such as timely ensuring reaction parameters, determining the change of resistance, replacing the big wind pressure transformation blower, parallel ling exhaust gas absorption tower and the gas heat exchanger, and changing the automatic control sets etc.were implemented, thereby in the short term restoring the nitrate production, achieving the safe operation and standardized discharging, making the tail gas treatment plant adapt the production system, realizing best combination of the environmental benefits and economic benefits, as well as providing the reference for subsequent resource recovery and second preheating of tail gas.
引文
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[2]唐文骞,杨同莲.硝盐工艺研究与工程设计[J].中氮肥,2012(1):1-4.
[3]高岩,栾涛,程凯,等.选择性催化还原蜂窝状催化剂工业试验研究[J].中国电机工程学报,2011,31(35):21-28.
[4]张超,许秋生,张立新,等.硝盐工业生产装置技术改造中HAZOP与LOPA联合分析的研究与应用[J].煤炭与化工,2016,39(10):109-114.
[5]谢公南,彭波涛,陈秋炀,等.管壳式换热器壳侧传热与阻力性能的实验研究与预测[J].中国电机工程学报,2006,26(21):104-108.
[6]许光第,周帼彦,朱冬生,等.管壳式换热器设计及软件开发[J].流体机械,2013,41(4):38-42.
[7]胡焕性,张志忠,赵凤起,等.高能量密度材料3,4-二硝基呋咱基氧化呋咱性能及应用研究[J].兵工学报,2004(2):155-158.
[8]孟献亮,奚海,李祥,等.硝盐联产技术在元明粉生产过程中的应用[J].中国井矿盐,2009(3):6-8.
[9]蔡皓鸿.浅谈盐硝厂房及附属设施的钢筋砼结构腐蚀与防护[J].中国井矿盐,2009(6):30-33.
[10]马东民,张遂安,王鹏刚,等.煤层气解吸的温度效应[J].煤田地质与勘探,2011(1):20-23.
[11]马东民,张遂安,蔺亚兵.煤的等温吸附-解吸实验及其精确拟合[J].煤炭学报,2011(3):477-480.