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1. 发明授权

US09370745B2 Flue gas-treating method and apparatus for treating acidic tail gas by using ammonia process 有权
标题翻译：烟气处理方法及使用氨法处理酸性尾气的设备
公开(公告)号：US09370745B2
公开(公告)日：2016-06-21
申请号：US14829905
申请日：2015-08-19
申请人： JIANGSU NEW CENTURY JIANGNAN ENVIRONMENTAL PROTECTION CO., LTD
发明人： Changxiang Xu , Jing Luo , Guoguang Fu , Yanzhong Xu
IPC分类号： B01D53/50 , B01D53/78
CPC分类号： B01D53/502 , B01D53/504 , B01D53/78 , B01D2251/11 , B01D2251/2062 , B01D2252/102 , B01D2252/103 , B01D2257/302 , B01D2257/406 , B01D2258/0283
摘要： A flue gas-treating method for treating acid tail gas by using an ammonia process, comprising the following steps of: 1) controlling the concentration of sulfur dioxide in an acid tail gas entering an absorber to be ≦30,000 mg/Nm3; 2) spraying and cooling with a process water or/and an ammonium sulfate solution in the inlet duct of the absorber or inside the absorber; 3) providing an oxidation section in the absorber, wherein the oxidation section is provided with oxidation distributors for oxidizing the desulfurization absorption solution; 4) providing an absorption section in the absorber wherein the absorption section achieves desulfurization spray absorption by using absorption solution distributors via an absorption solution containing ammonia; the absorption solution containing ammonia is supplied by an ammonia storage tank; 5) providing a water washing layer above the absorption section in the absorber, wherein the water washing layer washes the absorption solution in the tail gas to reduce the slip of the absorption solution; 6) providing a demister above the water washing layer inside the absorber to control the concentration of mist droplets contained in the cleaned tail gas. In the coal chemical industry, the integration of the Claus sulfur recovery process and the ammonia desulfurization technology can reduce the investment of the post-treatment and simplify the operation process, and provide intensive advantages to the environmental control of plants.
摘要翻译：一种通过使用氨法处理酸性尾气的烟道气处理方法，包括以下步骤：1）控制进入吸收器的酸性尾气中的二氧化硫浓度为3万mg / Nm 3; 2）在吸收器的入口管道或吸收器内部用工艺水或/和硫酸铵溶液喷雾和冷却; 3）在吸收器中提供氧化段，其中氧化段设有用于氧化脱硫吸收溶液的氧化分布器; 4）在吸收器中提供吸收部分，其中吸收部分通过使用吸收溶液分配器通过含有氨的吸收溶液实现脱硫喷雾吸收; 含有氨的吸收溶液由氨储罐供给; 5）在吸收器中的吸收部分上方设置水洗层，其中水洗层洗涤尾气中的吸收溶液以减少吸收溶液的滑动; 6）在吸收器内部的水洗层上方设置除雾器，以控制清洁尾气中所含的雾滴的浓度。在煤化工行业，克劳斯硫磺回收工艺和氨脱硫技术的整合可以减少后处理投资，简化操作过程，为植物环境控制提供强有力的优势。

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