英语翻译Removal of NO,and SO2 from Flue Gas by Peracid Solutions

英语翻译
Removal of NO,and SO2 from Flue Gas by Peracid Solutions
小标题：David Littlejohn and S.G.Chang*
Lawrence Berkeley Laboratory,University of California,Berkeley,California 94720
Treatment of water-soluble carboxylic acids with concentrated hydrogen peroxide generates solutions of peracids.These compounds can rapidly oxidize NO,and SO2 to their respective oxyanions,making them useful in flue gas treatment.The properties of performic acid,peracetic acid,and perpropionic acid are reported and are compared with peroxymonosulfuric acid.The chemistry of NO,and SO2 removal by these compounds is discussed.
正文：
Aqueous solutions of a number of oxidizing compounds have been studied to determine their effectiveness in re- moving NO,and SOz from flue gas (Kobayashi et al.,1977).A wet process exists using hydrogen peroxide to remove NO,and SOz from flue gas,but it is only effective under very acidic conditions (Cooper,1984).The process de- veloped by Cooper requires an acidic medium because hydrogen peroxide is a much more effective oxidizing agent in the form of H302+,which exists in acidic conditions (Purcell and Kotz,1977).The process needs an alkaline wash of the treated gas to remove volatilized nitrogen oxides from the acidic peroxide solution.We have made further studies of oxidizing compounds to determine their usefulness in flue gas clean-up systems.One class of compounds that has been found to be effective in NO,and SOp removal is that of peroxyacids,or peracids.Peracids have been found to function over a much wider pH range than hydrogen peroxide alone.They are formed by a reaction of hydrogen peroxide and some compounds con- taining a carboxylic acid group.Performic acid (PFA),peracetic acid (PAA),and perpropionic acid (PPA) were studied and compared with peroxymonosulfuric acid (PMSA),also known as Caro's acid.
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题目二氧化硫脱除氮氧化物、从烟气通过光的解决方案
小标题：大卫Littlejohn和s .g .长安
劳伦斯伯克利实验室,美国加州大学柏克莱分校94720加州
治疗的水溶性羧酸与集中过氧化氢的peracids收敛.这些化合物能够迅速、二氧化硫氧化没有给他们,使他们各自的oxyanions有用的烟气治理.performic的性质、酸、过氧乙酸perpropionic酸,较之peroxymonosulfuric报道.化学和二氧化硫,这些化合物进行了探讨.
正文：水溶液的氧化化合物的研究来确定其有效性重新移动,但他从没有烟气(小林等,1977年).湿过程中存在的过氧化氢,并注意移除一个从烟气,但这仅仅是有效的在酸性环境下(库珀,1984年).德- veloped中酸性介质由库珀要求因为过氧化氢是一种更有效的氧化剂的形式而存在H302 +,在酸性环境下(Purcell和Kotz,1977年).这个过程需要治疗的碱性洗除去volatilized氮氧化物气体从酸性过氧化的解决方案.我们已经作了进一步的研究来确定其有效性氧化化合物在烟气净化系统.有一种化合物,它被认为是有效的在没有,是peroxyacids SOp切除,或peracids.Peracids已经发现功能到更广的pH范围比过氧化氢.它们是由一个反应的过氧化氢和一些反对-泰宁一个羧酸集团.Performic酸(PFA)、过氧乙酸、perpropionic(聚酸(PPA)进行了研究,并与peroxymonosulfuric酸(PMSA),也称为开罗的酸.