Hydrogenating catalyst composition and preparation process thereof
A hydrogenation catalyst and composition technology, which are applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve problems such as the self-heating problem of sulfided catalysts that cannot be completely solved, and are suitable for large-scale Ease of use, easy storage, low production cost effects
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Embodiment 1
[0030] The commercial hydrodesulfurization catalyst FH-5A (developed by Fushun Petrochemical Research Institute and produced by Wenzhou Huahua Group Co., Ltd.) was selected. The main composition and properties are shown in Table 1.
[0031] The specific pre-sulfurization process is as follows:
[0032] The molten elemental sulfur is introduced into the oxidation state catalyst, and the introduced amount of the elemental sulfur is 105% of the theoretical sulfur requirement of the catalyst. Then triethanolamine is supported on the catalyst, the addition amount of triethanolamine is 1% of the weight of the catalyst, and finally impregnated with coked diesel oil fraction, and the amount of the coked diesel oil is 40% of the weight of the catalyst. A hydrorefining catalyst EPRES-1 finally containing a sulfurizing agent was obtained.
Embodiment 2
[0034] The catalyst in the oxidation state is the same as in Example 1, which is FH-5A.
[0035] The specific pre-sulfurization process is as follows:
[0036] 1. Uniformly impregnate triethylamine on the oxidized FH-5A catalyst, and the addition amount of triethylamine is 5% of the catalyst weight to obtain a catalyst loaded with triethylamine.
[0037] 2. Dispersing the elemental sulfur in a solvent with a volume ratio of catalytic cracking gasoline and rapeseed oil of 8:1, the amount of solvent is 15% of the catalyst weight, and the amount of elemental sulfur is 100% of the theoretical sulfur content of the catalyst containing metal. The elemental sulfur solvent impregnates the triethylamine-loaded catalyst obtained in step 1. The final hydrorefining catalyst EPRES-2 containing a sulfurizing agent was obtained.
Embodiment 3
[0041] The catalyst in the oxidation state is the same as in Example 1, which is FH-5A.
[0042] The specific pre-sulfurization process is as follows:
[0043] 1. Dissolve triethylenetetramine in ammonia water containing 8wt% of ammonia, impregnate the oxidized catalyst with the solution, the amount of triethylenetetramine is 15% of the catalyst weight, and then dry at 130° C. for 4 hours to obtain a catalyst containing triethylenetetramine Tetramine catalyst.
[0044] 2, vacuum distillate oil and peanut oil volume ratio are 1: 2 miscible solvent, solvent consumption is 0.5% of catalyst weight, then mixes with elemental sulfur solid powder, and elemental sulfur consumption is 90% of catalyst metal-containing theoretical sulfur requirement.
[0045] 3. The material obtained in step 2 was treated at 180° C. for 3 hours under normal pressure and in a stagnant air atmosphere to obtain a hydrorefining catalyst EPRES-3 finally containing a vulcanizing agent.
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