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Prepn process of hydrogenation catalyst composition

A technology for hydrogenation catalysts and compounds, which is applied in catalyst activation/preparation, chemical instruments and methods, and selective hydrorefining, etc., can solve problems such as the self-heating problem of sulfurized catalysts that cannot be completely solved, and can avoid material mixing. uniformity, low production cost, and the effect of improving the vulcanization effect

Active Publication Date: 2010-05-12
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN1400056A Coat the pre-sulfurized catalyst containing sulfidation agent with oxygen-containing organic matter containing at least 16 carbon atoms, treat it above 175°C for a period of time, and then activate it with hydrogen to reduce the self-heating problem of the catalyst, but it cannot completely solve the sulfidation state The self-heating problem of the catalyst, and the storage, transportation and loading of the catalyst still have certain problems

Method used

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  • Prepn process of hydrogenation catalyst composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 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.

[0038] The specific pre-sulfurization process is as follows:

[0039] 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. Then, it was treated at 220° C. for 2 hours under normal pressure and nitrogen flow atmosphere (nitrogen amount 15 L / L catalyst·hour), to obtain the final hydrotreating catalyst EPRES-1 containing a sulfiding agent. Heat treatment equip...

Embodiment 2

[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. 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.

[0044] 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.

[0045] 3. The catalyst obtained in step 2 was treated at normal pressure, in a stagnant air atmosphere, and at 160°C for 5 hours to obtain the final hydrotreating catalyst EPRES-2 containing a sulfurizing agent. The heat treatment equipment used ...

Embodiment 3

[0052] The catalyst in the oxidation state is the same as in Example 1, which is FH-5A.

[0053] The specific pre-sulfurization process is as follows:

[0054] 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.

[0055] 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.

[0056] 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. Heat treatment equipme...

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Abstract

The present invention relates to preparation process of hydrogenation catalyst composition. The hydrogenation catalyst composition contains hydrogenation catalyst as well as organic nitride in 0.5-20wt% of the catalyst, sulfur element in 30-150 wt% of the theoretical sulfur demand and organic solvent in 0.1-50 wt% of the catalyst. The preparation process includes introducing the required mattersinto the hydrogenation catalyst in oxide state, and the subsequent heat treatment in dynamic heating equipment. The hydrogenation catalyst with introduced organic nitride, sulfur and organic solvent has raised sulfur holding rate, smooth temperature raising in the catalyst bed and raised catalyst activity. The method of the present invention may be applied for various kinds of hydrogenation catalyst.

Description

technical field [0001] The invention relates to a preparation method of a hydrogenation catalyst, in particular to a preparation method of a hydrogenation catalyst composition containing a sulfurizing agent after presulfidation treatment outside the device. Background technique [0002] Hydrofining, hydrotreating, hydrocracking and other hydrogenation catalysts generally use alumina, silicon aluminum, molecular sieve and other refractory oxides as carriers, and one or more active metal groups such as molybdenum, tungsten, cobalt, nickel, etc. Sometimes, the catalyst can also contain auxiliary components such as phosphorus, silicon, fluorine, titanium, zirconium, and boron. Generally, the metal component of the catalyst obtained in the production process exists in an oxidized state, while in the hydrogenation reaction process, the active metal component of the catalyst is in a sulfide state (the metal exists in the form of sulfide: Co 9 S 8 、MoS 2 、Ni 3 S 2 、WS 2 etc.) ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J37/20B01J27/049C10G45/38
Inventor 不公告发明人
Owner CHINA PETROLEUM & CHEM CORP
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