A NEW PROCESS OF SO_2 REMOVAL FROM FLUE GAS WITH AQUEOUS SOLUTIONS OF HETEROPOLY ACIDS
A NEW PROCESS OF SO_2 REMOVAL FROM FLUE GAS WITH AQUEOUS SOLUTIONS OF HETEROPOLY ACIDS
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发表时间：
2001
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通讯作者：
C. Ze
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作者：
C. Ze
介绍了一种利用杂多酸进行烟气脱硫新方法的初步研究。多孔板玻璃吸收反应器（孔径：50 μ m~70 μ m）μm)被用来调查杂多酸的吸收剂溶液的性能研究,只有细微差别,所以2 H 3 pw 12 O 40之间的去除效率和H 4 siw 12 O 40,所以2 H的去除效率7 pmo 2 w 12 O 49和Na 2 hpmo 12 O 40似乎更高,Na 2 hpmo 12 O 40的性能是最好的在四个HPA的2去除效率随其浓度的增加,随着原料气中so2浓度和吸收温度的升高，so2的去除率降低，室温对so2的去除率有利。NaCl、nh4vo3、cuso4和h3po4等添加剂对HPA的so2去除率均有积极影响。NaCl/HPA∶h3po 4/HPA∶n4vo 3/HPA∶CuSO 4/HPA=1/6∶1/8∶1/2∶1/4在原料气中存在nox时，脱硫效率显著提高，当nox的质量浓度超过so2时，脱硫效率可达100%
A preliminary investigation on a new method of flue gas desulfurization involving the use of heteropoly acids was presented A multiorifice plate glass absorption reactor (hole diameter: 50?μm～70?μm) was used to investigate the performance of the absorbent solution Of the heteropoly acids investigated, there is only a slight difference in SO 2 removal efficiency between H 3PW 12 O 40 and H 4SiW 12 O 40 , the SO 2 removal efficiency of H 7PMo 2W 12 O 49 and Na 2HPMo 12 O 40 appears to be higher, the performance of Na 2HPMo 12 O 40 is the best among the four The SO 2 removal efficiency of HPA increases with the increase of its concentration, decreases with the increase of the feed gas SO 2 concentration and absorption temperature Room temperature was determined to be favourable for SO 2 removal All additives including NaCl, NH 4VO 3, CuSO 4 and H 3PO 4 were confirmed to have positive effect on the SO 2 removal efficiency of HPA The optimum molar ratios of additives to HPA in the multi additive absorbent system were confirmed to be: NaCl/HPA∶H 3PO 4/HPA∶NH 4VO 3/HPA∶CuSO 4/HPA=1/6∶1/8∶1/2∶1/4 In the presence of NO x in the feed gas, the SO 2 removal efficiency increases markedly, and it reaches 100% when the mass concentration of NO x exceeds that of SO 2 The probable reactions during desulfurization in presence of NO x were proposed, which could well illustrate the effect of NO x