摘要：【中文】本发明公开了一种光气化反应尾气的处理方法，包括以下步骤：将光反应尾气通入以溶剂A为吸收剂的喷淋吸收塔，将尾气中氯气吸收在液相中，吸收饱和后的溶剂A再经解吸得到分离的氯气；将剩余的尾气通入冷凝塔内，对尾气中的有机溶剂回收；剩余尾气通入以溶剂B为吸收剂的喷淋吸收塔，将尾气中氯化氢吸收在液相中，吸收饱和后的溶剂B再经解吸得到分离的氯化氢气体；将剩余的尾气通入以催化剂C为吸收剂的喷淋吸收塔，在润湿的催化剂表面水解成氯化氢和二氧化碳气体；本发明先对尾气中的氯气进行吸收处理，然后对尾气中的有机溶剂进行处理，避免对催化剂的使用造成影响，再对尾气中的氯化氢进行处理，最后对光气的处理，对尾气的处理效果好。 【EN】The invention discloses a method for treating tail gas of a phosgenation reaction, which comprises the following steps: introducing the photoreaction tail gas into a spray absorption tower which takes a solvent A as an absorbent, absorbing chlorine in the tail gas into a liquid phase, and desorbing the saturated solvent A to obtain separated chlorine; introducing the residual tail gas into a condensing tower, and recovering the organic solvent in the tail gas; introducing the residual tail gas into a spray absorption tower which takes the solvent B as an absorbent, absorbing the hydrogen chloride in the tail gas into a liquid phase, and desorbing the saturated solvent B to obtain separated hydrogen chloride gas; introducing the residual tail gas into a spray absorption tower which takes the catalyst C as an absorbent, and hydrolyzing the residual tail gas into hydrogen chloride and carbon dioxide gas on the surface of the wetted catalyst; the method firstly absorbs the chlorine in the tail gas, then treats the organic solvent in the tail gas to avoid influencing the use of the catalyst, then treats the hydrogen chloride in the tail gas, and finally treats the phosgene, so that the treatment effect on the tail gas is good.

摘要：【中文】本发明公开了尾气处理领域的一种氯甲苯精馏尾气的处理方法，所述的方法包括以下步骤：将所述的含有氯化氢、甲苯及氯甲苯混合废气依次通入到以溶剂A、溶剂B、溶剂C为吸收剂的精馏塔，分离吸附氯化氢、甲苯及氯甲苯，采用溶剂A、B、C的组合，采用多级分布吸收含氯化氢、甲苯及氯甲苯混合废气，该方法能够有效的实现各组分之间的分离，废气处理彻底，能够全部实现资源化回收，且回收效率高，通过碳纤维装置中的碳纤维可以脱附再生使用，使用寿命长，氯化苯和甲苯尾气得到彻底的吸收，简单易行。 【EN】The invention discloses a treatment method of chlorotoluene rectification tail gas in the field of tail gas treatment, which comprises the following steps: the method comprises the steps of sequentially introducing the mixed waste gas containing hydrogen chloride, methylbenzene and chlorotoluene into a rectifying tower which takes a solvent A, a solvent B and a solvent C as absorbents, separating and adsorbing the hydrogen chloride, the methylbenzene and the chlorotoluene, and absorbing the mixed waste gas containing the hydrogen chloride, the methylbenzene and the chlorotoluene by adopting the combination of a solvent A, B, C and adopting multistage distribution.

摘要：【中文】本发明公开了一种含高浓度二氯乙烷、氯化氢混合废气的处理方法，包括如下步骤：过滤去固：对二氯乙烷废气进行过滤处理，去除二氯乙烷废气中的固体颗粒；分子捕获：采用醇类捕获剂对二氯乙烷废气进行捕获；水洗吸收：将分子捕获后的二氯乙烷废气进行水洗，通过水洗去除废气中的氯化氢以及挥发的醇类捕获剂；活性吸附：采用活性炭处理后的二氯乙烷废气进行物理吸附，去除有害成分并进行排放，本发明设计合理，通过分子捕获分离了氯化氢和二氯乙烷气体，使得纯化废盐酸的难度大大降低，通过脱附再生达到了资源再利用，捕获剂可以循环利用，节约废气处理的成本，另外二氯乙烷废气充分吸收处理后，大大降低了活性炭处理负荷，减少了二次污染。 【EN】The invention discloses a method for treating mixed waste gas containing high-concentration dichloroethane and hydrogen chloride, which comprises the following steps: filtering to remove solids: filtering the dichloroethane waste gas to remove solid particles in the dichloroethane waste gas; and (3) molecular capture: capturing dichloroethane waste gas by using an alcohol capturing agent; water washing and absorption: washing the dichloroethane waste gas after molecular capture with water, and removing hydrogen chloride and volatile alcohol capture agent in the waste gas through washing; active adsorption: the invention has reasonable design, separates the hydrogen chloride and the dichloroethane gas by molecular capture, greatly reduces the difficulty of purifying the waste hydrochloric acid, achieves resource recycling by desorption regeneration, can recycle the capture agent, saves the cost of waste gas treatment, and greatly reduces the load of activated carbon treatment and secondary pollution after the dichloroethane waste gas is fully absorbed and treated.