Experimental scale multi component absorption of SO2 and NO by NH3/NaClO scrubbing
Experimental scale multi component absorption of SO2 and NO by NH3/NaClO scrubbing
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DOI：
10.1016/j.cej.2016.12.011
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发表时间：
2017-04-15
影响因子：
15.1
通讯作者：
Mondal, Monoj Kumar
中科院分区：
文献类型：
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作者：
Raghunath, Chelluboyana Vaishnava;Mondal, Monoj Kumar
燃煤电厂烟道气是SO2和NO的主要排放源之一，目前有多种技术用于同时脱除其中的SO2和NO。但同时吸收SO2和NO的环境方面的研究较少。没有一种成熟的技术被选择用于去除这些适合于燃煤火力发电厂的有毒气体。本文提出了一种可行的NH3/NaClO洗涤法瞬时脱除SO2和NO的方法。开发该工艺的主要目的是生产有价值的产品，如亚硫酸铵、亚硝酸铵、硫酸铵和硝酸铵，其可用作农业领域中植物的肥料。NaClO可以作为氧化添加剂用于NH3/NaClO吸收剂的水溶液混合物中，以使通过湿法洗涤同时去除SO2和NO的过程可行。研究了反应温度、NH_3/NaClO摩尔比、反应时间、SO_2浓度、NO浓度等工艺参数对该工艺的影响。确定了最佳操作参数。本文对具体的工艺过程进行了说明。(C)2016爱思唯尔B. V.保留所有权利。
In current situation numerous technologies have been applied for simultaneous removal of SO2 and NO in coal fired power plant stack gases, one of the major SO2 and NO emission sources. But few researches had been done concentrating in environmental aspect for simultaneous SO2 and NO absorption. No established technology was opted for removal of these toxic gases suitable for coal fired thermal power plants. This paper suggests a proposed feasible method for instantaneous removal of SO2 and NO by NH3/NaClO scrubbing. The main intention for the development of this process is to produce valuable products such as ammonium sulphite, ammonium nitrite, ammonium sulphate and ammonium nitrate which can be utilized as fertilizer for plants in agricultural field. Here NaClO can be utilized as oxidative additive in the aqueous absorbent blend of NH3/NaClO to make the process of simultaneous removal of SO2 and" NO by wet scrubbing feasible. The experimental parameters such as reaction temperature, mole ratio of NH3 to NaClO, reaction time, SO2 concentration, NO concentration, etc. were studied in this process. The optimal operating parameters were determined. The detailed process description has been explained in this paper.(C) 2016 Elsevier B.V. All rights reserved.