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CONVERSION METHOD OF HYDROCARBON BY TREATING WITHIN DISTILLATION ZONE CONTAINING CIRCULATORY REFLUX SUBSTANCE COMBINED WITH REACTION ZONE AND USING METHOD THEREOF FOR HYDROGENATION OF BENZENE
CONVERSION METHOD OF HYDROCARBON BY TREATING WITHIN DISTILLATION ZONE CONTAINING CIRCULATORY REFLUX SUBSTANCE COMBINED WITH REACTION ZONE AND USING METHOD THEREOF FOR HYDROGENATION OF BENZENE
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机译:含循环回流物质与反应区结合的精馏区内处理的烃转化方法及其使用的苯加氢方法
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摘要
PROBLEM TO BE SOLVED: To decrease the reflux rate and improve the conversion rate of hydrocarbon, wherein a portion of introducing a hydrocarbon material into a distillation column is drawn into a hydrogenation reactor placed at the outside of the distillation column to be hydrogenated followed by re-introduction into the distillation column at a higher position than the drawing position and at a lower temperature than the drawing temperature with continuous distillation. ;SOLUTION: When treating within a zone generating a vapor-distilled fraction of the top part and effluence of the bottom part after introducing a hydrocarbon material into a distillation column 2 through a duct 1, the liquid drawn through the duct 15 is hydrogenated with hydrogen through a tube line 4 followed by transporting said liquid into the top part of a hydrogenation reactor 3 where a conversion reaction of a portion of the hydrocarbon material (e.g. benzene) is performed. Then, after cooling effluence of reactor 3 preferably at least 10°C lower than the drawing temperature in a heat-exchanger 16, the cooled effluence is re-introduced into the distillation column 2 through the duct 17 at a higher position than that of the drawing tube line 15. As a result, this can also lead to reduction of the distillation zone size.;COPYRIGHT: (C)1999,JPO
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