研究溶液的浓度、pH值、温度、烟气流量、含氧量等对4种多钒取代磷钼杂多酸水溶液的脱硫脱硝性质的影响。结果表明,Dawson-V6杂多酸具有最佳的脱硫脱硝效果,当杂多酸溶液浓度为3.96 mmol/L,温度为25℃,pH为11,烟气流量0.05 m 3/h,含氧...研究溶液的浓度、pH值、温度、烟气流量、含氧量等对4种多钒取代磷钼杂多酸水溶液的脱硫脱硝性质的影响。结果表明,Dawson-V6杂多酸具有最佳的脱硫脱硝效果,当杂多酸溶液浓度为3.96 mmol/L,温度为25℃,pH为11,烟气流量0.05 m 3/h,含氧量9%时去除效果最好,杂多酸的脱硫效率可达100%,脱硝效率为79.58%。对实际锅炉排放的烟气除尘,杂多酸对二氧化硫和氮氧化物的去除率分别可以达到60.96%和35.27%。展开更多
Four new vanadium substituted Dawson-type heteropoly acids H7[P2Mo17VO62]·39H2O(1), H8[P2Mo16V2O62]·41H2O(2), H9[P2Mo15V3O62]·51H2O(3) and H8[P2Mo14V4O62H2]·45H2O(4) were prepared respec-ti...Four new vanadium substituted Dawson-type heteropoly acids H7[P2Mo17VO62]·39H2O(1), H8[P2Mo16V2O62]·41H2O(2), H9[P2Mo15V3O62]·51H2O(3) and H8[P2Mo14V4O62H2]·45H2O(4) were prepared respec-tively. Their structures were determined by IR and ICP. The inhibition effects of vanadium substituted Dawson-type heteropoly acids(Mo, P) on free radical polymerization of methyl methacrylate(MMA) were investigated by dilatometry. The results show that the rate of the polymerization of MMA decreases and the inhibition effects of the four heteropoly acids reach the inhibitor performance of hydroquinone at a certain ratio.展开更多
文摘研究溶液的浓度、pH值、温度、烟气流量、含氧量等对4种多钒取代磷钼杂多酸水溶液的脱硫脱硝性质的影响。结果表明,Dawson-V6杂多酸具有最佳的脱硫脱硝效果,当杂多酸溶液浓度为3.96 mmol/L,温度为25℃,pH为11,烟气流量0.05 m 3/h,含氧量9%时去除效果最好,杂多酸的脱硫效率可达100%,脱硝效率为79.58%。对实际锅炉排放的烟气除尘,杂多酸对二氧化硫和氮氧化物的去除率分别可以达到60.96%和35.27%。
基金Supported by the National Natural Science Foundation of China(Nos.20971031, 21071035)the Key Natural Science Foundation of the Heilongjiang Province, China(No.ZD201009)
文摘Four new vanadium substituted Dawson-type heteropoly acids H7[P2Mo17VO62]·39H2O(1), H8[P2Mo16V2O62]·41H2O(2), H9[P2Mo15V3O62]·51H2O(3) and H8[P2Mo14V4O62H2]·45H2O(4) were prepared respec-tively. Their structures were determined by IR and ICP. The inhibition effects of vanadium substituted Dawson-type heteropoly acids(Mo, P) on free radical polymerization of methyl methacrylate(MMA) were investigated by dilatometry. The results show that the rate of the polymerization of MMA decreases and the inhibition effects of the four heteropoly acids reach the inhibitor performance of hydroquinone at a certain ratio.