| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for producing a monocyclic aromatic hydrocarbon capable of suppressing extreme heat generation upon hydrogenation reaction and avoiding increase of equipment cost of a hydrogenation reactor. <P>SOLUTION: The method for producing the monocyclic aromatic hydrocarbon having 6-8 carbon atoms has a breakdown/modification reaction step of bringing a starting material oil into reactive contact with a catalyst to obtain a product containing the monocyclic aromatic hydrocarbon, a purification/collection step of purifying and collecting monocyclic aromatic hydrocarbon isolated from the product generated in the breakdown/modification step, a hydrogenation reaction step of hydrogenating a heavy fraction isolated from the product generated in the breakdown/modification step, a dilution step of returning a portion of a hydrogenated product of the heavy fraction obtained in the hydrogenation reaction step to the hydrogenation reaction step as a dilution oil, and a recycling step of returning the hydrogenated product of the heavy fraction obtained in the hydrogenation reaction step to the breakdown/modification reaction step. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
