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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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kno3体系中离子液体辅助水煤浆电解脱硫
, PP. 928-936
Keywords: 水煤浆,电解,离子液体,硫
Abstract:
？在稳流条件下,考察了kno3体系中离子液体辅助煤浆电解脱硫效果.研究了煤浆电解过程中离子液体结构、浓度、温度和时间对脱硫率的影响.当咪唑类离子液体有机结构相同时,不同阴离子脱硫率由高到低顺序为:br->bf4->cl-;当阴离子同为br-时,咪唑脱硫效果优于吡啶.随着吡啶类离子液体([bpy]br)浓度增加,脱硫率先增加,在0.3mol/l处达到最大值,而后下降.此外,脱硫率随温度和时间增加而增大.最后,通过x射线光电子能谱(xps)分析技术对实验前后煤中有机硫形态进行了分析.结果表明,噻吩主要通过萃取-氧化反应脱除,而其他形式有机硫(如硫醚、亚砜)则主要通过促进氧化及水解反应脱除.
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