Prepn process of hydrogenation catalyst composition

A technology of hydrogenation catalysts and compounds, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, and selective hydrogenation refining. It can solve the problems that cannot completely solve the problem of self-heating of sulfided catalysts, and avoid material mixing. Uniformity, low production cost, and the effect of improving the vulcanization effect

Active Publication Date: 2007-12-19
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 14 Cited by
  • 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 r

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Prepn process of hydrogenation catalyst composition
  • 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. The heat treatment e...

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 adop...

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. The heat treatment equ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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 0.5-20 wt% 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 matters into 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01J37/20B01J27/049C10G45/38
Inventor (要求不公开所有发明人姓名)
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap