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Hydrogenating catalyst composition and preparation process thereof

A hydrogenation catalyst and composition technology, applied in refining to remove heteroatoms and other directions, can solve problems such as the self-heating problem of sulfided catalysts that cannot be completely solved, and are suitable for large-scale use, improve the performance of hydrogenation reaction, and the preparation process. simple effect

Active Publication Date: 2006-11-15
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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  • Hydrogenating catalyst composition and preparation process thereof
  • Hydrogenating catalyst composition and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

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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Abstract

This invention relates to the compound of hydro catalyst and its preparation method. The compound contains the hydro catalyst, the organic nitrogen compound the content of which is 0.5-20%, the sulfur element which is composed of 30-150% sulfur demand of the hydro catalyst and the organic solution the weight of which is 0.1-50% of the catalyst. The preparation processes is leading-in the demanded mater when the hydro catalyst is oxide. This hydro catalyst compound can improve the sulfur holding ratio of the catalyst which is activated, and slow up the concentrate heat release, decrease the elevated temperature of the catalyst bed, and increase the activity of the catalyst through the lead-in organic nitrogen, sulfur and organic solution. This invention can be applied to the treatment processes of any hydro catalyst.

Description

technical field [0001] The invention relates to a hydrogenation catalyst and a preparation method thereof, in particular to a hydrogenation catalyst composition containing a vulcanizing agent after an external presulfidation treatment and a preparation method thereof. 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 、W...

Claims

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Application Information

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IPC IPC(8): C10G45/08
Inventor (要求不公开姓名)
Owner CHINA PETROLEUM & CHEM CORP
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