Selectively hydrogenating catalyst and preparation method thereof
A hydrogenation catalyst, catalyst technology, applied in the direction of selective hydrorefining, chemical instruments and methods, metal/metal oxide/metal hydroxide catalyst, etc., can solve the problem of impurity resistance to be improved, etc. Effects of diene hydrogenation performance and selectivity, suitable activity, impurity resistance and coking resistance improvement
Active Publication Date: 2009-05-20
PETROCHINA CO LTD
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The invention provides an unsaturated hydrocarbon selective hydrogenation catalyst and a preparation method thereof. The catalyst uses alumina as a carrier and palladium as an active ingredient, and is characterized by comprising the following components by weight percentage: 0.1 to 1.0 percent of the palladium, 0.3 to 8.0 percent of a rare earth metal, 0.1 to 5.0 percent of alkaline-earth metal, and 0 to 3.0 percent of fluorine which can also be contained in the catalyst, based on the total weight of the catalyst. The catalyst carrier is theta or mix-crystal type Al2O3, and the priority is given to the theta crystal type. In the invention, the catalyst palladium is preferably distributed in a secondary outer layer of the catalyst. The catalyst has certain impurity resistance and coking resistance, is applicable to a section of selective hydrogenation process in full distillate cracked gasoline and unsaturated hydrocarbon selective hydrogenation process in other distillate oils.
Application Domain
Metal/metal-oxides/metal-hydroxide catalystsRefining by selective hydrogenation
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Property | Measurement | Unit |
Specific surface | 70.0 | m |
Average hole radius | 12.0 | nm |
Pore volume | 0.51 | ml/g |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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