High-dispersion type catalyst for liquid phase hydrogenation of octanol mixture, and preparation and application thereof

A liquid-phase hydrogenation and mixture technology, which is applied in the preparation of hydroxyl compounds, organic compounds, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of hydrogenation effect to be improved, and achieve good industrial application Prospect, optimization of reductive activation process, effect of reduced coalescence

Active Publication Date: 2014-07-02
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, nickel-based catalysts usually have good hydrogenation performance for C=C double bonds, but their hydrogenation effect for C=O-containing hydrogenation needs to be improved.

Method used

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  • High-dispersion type catalyst for liquid phase hydrogenation of octanol mixture, and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Add 500g of pseudo-boehmite powder, 8g of scallop powder, 12g of concentrated nitric acid, and 450ml of water, fully knead, and extrude into The clover-shaped strip-shaped carrier is dried at 120°C for 20 hours, and then roasted at 600°C for 5 hours to obtain the required carrier A; 0.02mol / L lanthanum nitrate solution B is prepared, and 20g of carrier A Immerse in lanthanum nitrate solution B, the immersion temperature is 50°C, and the immersion time is 6h. After the impregnation is completed, dry at 110°C and roast at 450°C for 3 hours to obtain a rare earth La modified carrier; configure 0.5mol / L nickel nitrate + 0.3mol / L copper nitrate + 0.05mol / L manganese nitrate + 1mol / L Urea mixed solution C; add the rare earth La modified carrier into solution C, put it in an autoclave, and place it at 110° C. for 24 hours. After the reaction is completed, the catalyst precursor can be prepared by drying at 120° C. for 10 hours and roasting at 500° C. for 5 hours. at 400°C a...

Embodiment 2

[0033] Add 500g of pseudo-boehmite powder, 7g of scallop powder, 14g of concentrated nitric acid, and 400ml of water, fully knead, and extrude into The four-leaf clover-shaped strip carrier was dried at 130°C for 10 hours, and then roasted at 600°C for 5 hours to obtain the required carrier A; 0.04mol / L lanthanum nitrate solution B was prepared, and 20g of The carrier A is impregnated in the lanthanum nitrate solution B, the immersion temperature is 60°C, and the immersion time is 12h. After the impregnation is completed, dry at 110°C for 8 hours, and roast at 500°C for 4 hours to prepare the rare earth La modified carrier; configure 1mol / L nickel nitrate + 0.5mol / L copper nitrate + 0.03mol / L manganese nitrate + 1mol / L Formamide mixed solution C; add the rare earth La-modified carrier into solution C, put it in an autoclave, and place it at 105°C for 24 hours. After the reaction is completed, the catalyst precursor can be prepared by drying at 110° C. for 16 hours and roasti...

Embodiment 3

[0036] Add 500g of pseudo-boehmite powder, 7g of scallop powder, 10g of concentrated nitric acid, and 450ml of water, fully knead, and extrude into The clover-shaped strip carrier of the clover-shaped carrier was dried at 110°C for 20 hours, and then roasted at 550°C for 8 hours to obtain the required carrier A; 0.02mol / L lanthanum nitrate solution B was prepared, and 20g of carrier A is immersed in the lanthanum nitrate solution B, the immersion temperature is 50°C, and the immersion time is 12h. After the impregnation is completed, dry at 110°C for 12 hours, and roast at 500°C for 6 hours to obtain a rare earth La modified carrier; configure 1.5mol / L nickel nitrate + 0.2mol / L copper nitrate + 0.1mol / L manganese nitrate + 1.5mol / L urea mixed solution C; the rare earth La modified carrier was added to solution C, placed in an autoclave, and placed at 110°C for 30 hours. After the reaction is completed, the catalyst precursor can be prepared by drying at 120° C. for 8 hours ...

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Abstract

The invention relates to a high-dispersion type catalyst for liquid phase hydrogenation of an octanol mixture and preparation and application thereof. According to the invention, gamma-Al2O3 is used as a carrier, rare earth element lanthanum is used as a carrier modification auxiliary agent, nickel is used as a main active component, and copper and manganese are used as active auxiliary agents; in terms of mass (100%), the carrier accounts for 40 to 95% of the catalyst, the carrier modification auxiliary agent rare earth element lanthanum accounts for 0.1 to 12% in terms of La2O3, the content of the main active component nickel accounts for 1 to 30% in terms of NiO, the content of the active auxiliary agent Cu is 0.5 to 15% in terms of CuO, and content of the active auxiliary agent Mn is 0.5 to 10% in terms of MnO. According to the invention, through rare earth element surface modification and hydro-thermal deposition, the size and dispersity of active component particles can be effectively controlled, the content of surface active species is increased, and the catalyst has higher catalytic hydrogenation activity and stability on unsaturated components like octenal, isooctanol and isooctenal in the octanol mixture.

Description

technical field [0001] The invention relates to a highly dispersed catalyst for liquid-phase hydrogenation of octanol mixtures (containing unsaturated components such as octenal, isooctyl alcohol, and isooctyl aldehyde) and a preparation method thereof, in particular to a method for adding rare earth elements The invention relates to a nickel-based hydrogenation catalyst of a carrier modifier, copper and manganese active promoters, and a preparation method thereof. Background technique [0002] Octanol is an important chemical raw material, mainly used in the preparation of phthalates and aliphatic dibasic acid esters, used as plasticizers, defoamers, dispersants, mineral dressing agents and petroleum additives, etc. , It is also widely used in medicine, dyes, pesticides, etc. Industrially, octanol is mainly formed by the hydrogenation of octenal. There are two unsaturated bonds of C=C and C=O in the reactant octenal molecule. During the hydrogenation process, there will of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/889C07C29/141C07C31/125
Inventor 吴俊升王丹李晓刚郭金涛杨仁春张志华田然张文成周清华于春梅宋金鹤温广明张铁珍李凤铉王甫村徐伟池方磊谭明伟王亮常玉红刘文勇朱金玲冯秀芳
Owner PETROCHINA CO LTD
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