Reuse of copper catalyst in continuous hydrogenation |
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Authors: | J. M. Snyder C. R. Scholfield |
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Affiliation: | (1) U.S. Department of Agriculture, Northern Regional Research Center, Agricultural Research Service, 61604 Peoria, IL |
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Abstract: | Continuous hydrogenation of soybean oil using copper catalyst can be improved economically by reusing the catalyst. A hydrogenated oil with an approximate iodine value drop of 25 was attained by regulating the conditions and size of the reactor. Catalyst was removed by centrifuge and recycled. Reaction products were evaluated to determine catalyst activity, linolenate selectivity andtrans formation. By adding 0.2–0.4% fresh catalyst each time, the activity was retained. Linolenate selectivity ranged from 6 to 11 andtrans formation, expressed as specific isomerization, ranged from 0.63 to 0.78. |
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