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化学工业与工程 2011, Vol. 28 Issue (3) :5-8    DOI:
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负载型磷钨酸对汽油模型化合物氧化脱硫研究
田薇薇, 李会鹏, 赵华
辽宁石油化工大学石油化工学院,辽宁 抚顺 113001
Oxidative Desulfurization of Gasoline Model Compounds over Supported Phosphotungstic Acid Catalysts
  TIAN  Wei-Wei, LI  Hui-Peng, ZHAO  Hua
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摘要 以噻吩溶液为模型化合物,采用浸渍法将磷钨酸(HPWA)负载在HY分子筛上,并用负载后的催化剂对FCC模拟汽油催化氧化脱硫。考察了氧化温度、催化剂负载量、氧化时间、催化剂用量、氧化剂加入量等工艺条件对脱硫率的影响。研究结果表明,负载型磷钨酸作为催化剂,四丁基溴化铵为相转移催化剂,萃取剂(S)为二甲基亚砜,反应温度40 ℃,反应时间150 min,氧化剂用量为n(H2O2)/n(S)为8时脱硫率可达9289%。反应后模型化合物的硫含量降至36 μg/g,满足我国汽油含硫标准,此方法可用于生产低硫汽油。
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田薇薇
李会鹏
赵华
关键词负载型磷钨酸   汽油模型化合物   氧化脱硫     
Abstract: The phosphotungstic acid (HPWA) was loaded on the HY molecular sieve by impregnation method and the oxidative desulfurization of FCC simulation gasoline was investigated with thiophene solution as model compound by this loaded catalyst. The effects of reaction temperature,catalyst loading amount, reaction time, catalyst amount and oxidant amount on desulfurization were studied. The results show that with the loaded phosphotungstic acid as catalyst, tetrabutyl ammonium bromide as phase transfer catalyst, reaction temperature 40 ℃, reaction time 150 min, the oxidant amount n(H2O2)/n(S)=8, dimethyl sulfoxide as extractant, the desulfurization rate of thiophene is up to 9289%. The sulfur content of model compound dropped to 36 μg/g after reaction, which meets the requirements of the standard. This method can be used to produce low sulfur gasoline.
Keywordssupported phosphotungstic acid   gasoline model compounds   oxidative desulfurization     
引用本文:   
田薇薇, 李会鹏, 赵华.负载型磷钨酸对汽油模型化合物氧化脱硫研究[J].  化学工业与工程, 2011,28(3): 5-8
TIAN Wei-Wei, LI Hui-Peng, ZHAO Hua.Oxidative Desulfurization of Gasoline Model Compounds over Supported Phosphotungstic Acid Catalysts[J].  Chemcial Industry and Engineering, 2011,28(3): 5-8
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