| 摘要 |
PROBLEM TO BE SOLVED: To provide a zeolite catalyst in which zeolite coexists with zinc oxide and zinc aluminate which stably reforms gasoline containing an olefinic sulfur through eliminating causes for the deterioration and the like of the catalyst such as caulking by using the catalyst treated by steam prior to the use in chemical reaction. SOLUTION: This catalyst for reforming gasoline is a zeolite catalyst used in the process to stably reform gasoline containing an olefinic sulfur. At the point of time before the use of the catalyst, 0.5-20 wt.% zinc oxide is allowed to coexist with 3-50 wt.% zinc aluminate. In addition, the gasoline containing an olefinic sulfur is supplied to a catalytic bed filled with the steam-treated zeolite catalyst under conditions such as 350-550 deg.C reaction temperature, 2-10 hr1 weight time space velocity(WHSV) and 0-50 kg/cm2.G pressure. In this case, the mol ratio of SiO2/Al2O3 of the zeolite is preferably 20 or more as the mol ratio of SiO2/Al2O3 of the zeolite skeleton before steam treatment.
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