...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Environmental Science and Health >Extraction and solubilization of crude oil and volatile petroleum hydrocarbons by purified humic and fulvic acids and sodium dodecylbenzenesulfonate
【24h】

Extraction and solubilization of crude oil and volatile petroleum hydrocarbons by purified humic and fulvic acids and sodium dodecylbenzenesulfonate

机译：纯化的腐殖酸和富里酸和十二烷基苯磺酸钠对原油和挥发性石油烃的萃取和溶解

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Solubilization of crude oil (Fula, Sudan) in water demonstrates humic acid (HA), completely dissolves oil with a solubilization efficiency of 1600 g oil /g HA. The order of solubilization increases: HA > HA+ FA (fulvic acid) FA > SDBS (sodium dodecylbenzene sulfonate). Synthetic surfactant like, SDBS, exhibits the lowest efficiency even with 23 times the concentration of FA or HA. Extraction of diesel contaminated sand and GC-MS analysis show that HA and FA exhibit 50-90% extraction efficiency for C_(10)-C_(22) at pH 11.9 with just one extraction. SDBS exhibits the least removal efficiency (＜1%) for normal hydrocarbons. The effect of pH on extraction with HA by its micelles such as the surface active property was found to be greater than that for FA. On the basis of critical concentration, the extraction efficiencies with FA and HA are 1287 and 11453 times compared to SDBS, respectively, for the least extracted hydrocarbon at pH 10.8. The HSGC experiments showed that the solubilization efficiency of alkylbenzenes in gasoline (Shell 87) increases almost linearly with FA concentration with a slight deviation at 5-6 μM FA. About 35-60% of alkylbenzenes in gasoline were solubilized and partitioned at the highest FA concentration (15 μM) studied. Both studies with gasoline and diesel show similar extraction efficiencies even at 227-fold increased FA with diesel.
机译：原油（富拉，苏丹）在水中的增溶表明腐殖酸（HA）以1600 g油/ g HA的增溶效率完全溶解了油。增溶顺序增加：HA> HA + FA（富里酸） FA > SDBS（十二烷基苯磺酸钠）。合成表面活性剂（如SDBS）即使是FA或HA浓度的23倍，也显示出最低的效率。柴油污染砂的提取和GC-MS分析表明，仅用一次提取，HA和FA对pH 11.9的C_（10）-C_（22）的提取效率为50-90％。 SDBS对普通碳氢化合物的去除效率最低（＜1％）。发现pH值对其胶束用HA萃取的影响（如表面活性）大于FA。在临界浓度的基础上，对于pH 10.8的最少萃取烃，FA和HA的萃取效率分别是SDBS的1287和11453倍。 HSGC实验表明，烷基苯在汽油（壳牌87）中的溶解效率几乎随FA浓度线性增加，在5-6μMFA处略有偏差。在研究的最高FA浓度（15μM）下，汽油中约35-60％的烷基苯被溶解和分配。汽油和柴油的两项研究均显示出相似的萃取效率，即使柴油的FA含量提高了227倍。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号