共查询到17条相似文献,搜索用时 125 毫秒
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用溶剂和微量萃取剂组成的复合溶剂对催化裂化柴油络合萃取,再结合碱洗来改善其安定性。结果表明,催化裂化柴油经处理后,油中的氨化物及酸性化合物得到了有效脱除,安定性大大提高;柴油收率达97%以上,且溶剂可循环使用。 相似文献
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采用复合溶剂萃取催化裂化柴油中的氮化物,提高柴油的氧化安定性,实验室研究结果表明,在室温,剂油比为0.5 ̄0.75:1,3级逆流取精制柴油,精制渍氮化物脱除率达94%,收率超过95%,色度、氧化安定性达到一般柴油标准。溶剂可回收循环使用。 相似文献
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柴油中碱性氮化物脱除的研究 总被引:1,自引:0,他引:1
采用PS复合溶剂脱除催化柴油中的碱性氮化物,以改善催化柴油的质量和储存安定性;考察了精制溶剂组成、剂油比、精制温度、反应时间及静置时间对脱碱氮的影响。实验结果表明,采用V(甲醇):V(二甲基亚砜):V(聚丙烯酰胺):V(NaOH溶液)=2:1:0.5:6.5,复配的复合溶剂作为络合溶剂、络合时间3min、剂油比0.02、络合温度为室温时效果最佳,精制后的柴油,色度由25下降为14,碱氮脱除率达到92.30%。精制后的催柴油品颜色和氧化安定性得到了显著提高。 相似文献
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The chemical compounds present in a retort oil sample from an Israeli oil shale and their relative amounts were determined using the selected ion monitoring technique. Quantitative determination of the compounds present showed that the data obtained from whole shale and its subfractions produced by solvent extraction could be correlated. It was concluded that detailed structural results may be obtained from whole shale oil samples without the need to separate the shale oil into its subfractions. The shale oil contained 18% aliphatic long-chain hydrocarbons; the remaining identified portion consisted of aromatic, hydroaromatic, thiophenic furanic, phenolic and pyridinic compounds. 相似文献
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