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Clean gasoline reforming with superacid catalysts [electronic resource].

Published:
Washington, D.C. : United States. Dept. of Energy, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
Pages: (19 pages) : digital, PDF file
Additional Creators:
University of Kentucky, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
It has been observed for a number of the Zr catalysts that the maximum MCH conversion (ca. 20 wt.%) can be obtained in 15 min. using a reaction temperature of 150°C and 1 atm. of H₂, and no further reaction occurs during 120 minutes. Typical results for these catalysts as well as catalyst which show lower activities using the 15 min. residence time are shown in Figure 2. Both catalyst formulations, a Pt/ZrO₂/SO₄ and a Fe/Mn/ZrO₂/SO₄ show this behavior. The 15 minute conversion and the 2 hour conversion are not due to thermodynamic limitations. A series of experiments were completed using the Pt/ZrO₂/SO₄ catalyst to obtain data to explain the maximum conversions obtained. In the first set of experiments a conversion versus residence time curve (Figure 3) was generated. The data shown in Figure 3 indicated a conversion curve with reaction time that is typical of the catalysts tested. In the next set of experiments, the amount of reactor volume which was occupied by the catalyst and feedstock was varied to determine if the reaction taking place in the liquid or gas phase was limiting the conversion of MCH. The MCH/catalyst ratio was held constant at 2:1. The results of these experiments are shown in Figure 4. The data clearly indicates that the conversion remains fairly constant until the reactor it essentially filled with liquid. It does not appear that the limited maximum conversion observed is due to the reaction taking place in either the gas or liquid phase.
Report Numbers:
E 1.99:doe/pc/90049-t6
doe/pc/90049-t6
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
08/04/1992.
"doe/pc/90049-t6"
"DE92040530"
Davis, B.H.
Funding Information:
AC22-90PC90049
View MARC record | catkey: 14705248