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摘要: |
将噻吩和二苯并噻吩溶解于正辛烷配制成模型油,在Fe^2+和甲酸的催化作用下,用过氧化氢氧化脱硫。研究了Fe^2+的催化氧化性能及反应条件对其催化性能的影响。实验结果表明:30%H2O2-HCOOH-Fe^2+产生的过氧甲酸和羟基自由基能迅速将模型有机硫化合物氧化,氧化脱硫率可达到96%以上,Fe^2+和甲酸的催化氧化性能明显优于单纯使用甲酸。甲酸浓度、Fe^2+/H2O2摩尔比、过氧化氢加量及反应温度对氧化脱硫率均有影响。30%H2O2-HCOOH-Fe^2+体系氧化FCC柴油,然后经过萃取能达到深度脱硫,柴油硫含量从0.7268%(ω)降至0.0114%(ω),脱硫率达到98.43%,油回收率为85.53%。 |
关键词: 甲酸 过氧化氢 柴油 氧化脱硫 |
DOI: |
分类号:O643.36 |
基金项目: |
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Deep Desulfurization of Diesel Oil by Oxidation with Hydrogen Peroxide Catalyzed by Ferrous Ion and HCOOH |
Li Zhongming1 Yu Guoxian2 Lu Shanxiang2 et al
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Abstract: |
Thiophene and dibenzothiophene were selected as model compounds dissolved in n-octane subjected to oxidative desulfurization with hydrogen peroxide catalyzed by Fe 2+ and formic acid. Catalytic performance of Fe 2+ and the effect of reaction conditions on |
Key words: Fe2 |