Lanthanum-modified nickel-copper octanol hydrorefining catalyst, preparation and application thereof

A hydrofining and catalyst technology, which is applied in the direction of catalyst activation/preparation, hydroxyl compound preparation, metal/metal oxide/metal hydroxide catalyst, etc., can solve the problems of increased preparation cost, unfavorable application of online reduction device, and high activation temperature and other problems, to achieve good industrial application prospects, reduce the formation of solid solutions, and high catalytic activity

Active Publication Date: 2011-05-18
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A single component loaded on the carrier generally requires a high activation temperature (such as nickel loaded on the carrier alumina), which greatly increases the preparation cost and is not conducive to the application of the online reduction device

Method used

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  • Lanthanum-modified nickel-copper octanol hydrorefining catalyst, preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 200g of pseudo-boehmite powder, 3g of turmeric powder, 6g of concentrated nitric acid, and 180g of water, fully knead, and extrude into a D1.0 trilobal strip carrier, and dry the formed carrier at 110°C 10h, and then roasted at 600°C for 3h to obtain the required carrier A; configure 0.05mol / L lanthanum nitrate aqueous solution B, 0.5mol / L copper nitrate aqueous solution C, and 0.5mol / L nickel nitrate aqueous solution D; A is immersed in solution B for 3 hours, dried at 110°C and then roasted at 500°C for 3 hours; then immersed in 10ml of solution C for 3 hours, after the dipping is completed, dried at 110°C and roasted at 500°C for 3 hours; then immersed in 10ml of solution D for 3 hours , and then dried at 110° C.; calcined at 500° C. for 3 hours to obtain a catalyst precursor.

Embodiment 2

[0025]Add 200g of pseudo-boehmite powder, 4g of turmeric powder, 7g of concentrated nitric acid, and 170g of water, fully knead, and extrude into a D1.5 trilobal strip carrier, and dry the formed carrier at 110°C 10h, and then roasted at 600°C for 3h to obtain the required carrier A; configure 0.02mol / L lanthanum acetate aqueous solution B, 0.5mol / L copper acetate aqueous solution C, and 0.5mol / L nickel acetate aqueous solution D; 20g of the carrier A is immersed in solution B for 3 hours, dried at 110°C and then roasted at 500°C for 3 hours; then immersed in 10ml of solution D for 3 hours, after the dipping is completed, dried at 110°C and roasted at 500°C for 3 hours; then immersed in 10ml of solution C for 3 hours , and then dried at 110° C.; calcined at 500° C. for 3 hours to obtain a catalyst precursor.

Embodiment 3

[0027] Add 200g of pseudo-boehmite powder, 5g of fenugreek powder, 8g of concentrated nitric acid, and 160g of water, fully knead, and extrude into a D2.0 trilobal strip carrier, and dry the formed carrier at 110°C 10h, and then roasted at 600°C for 3h to obtain the required carrier A; configure 0.01mol / L lanthanum sulfate ethanol solution B, 0.25mol / L copper sulfate ethanol solution C, and 0.25mol / L nickel sulfate ethanol solution D; 20g of carrier A is first immersed in B solution for 3 hours, dried at 110°C and then roasted at 500°C; then immersed in 10ml of C+10ml D mixed solution for 3h, after impregnation, dried at 110°C; then roasted at 500°C 3h, the catalyst precursor was prepared.

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Abstract

The invention relates to a lanthanum-modified nickel-copper octanol hydrorefining catalyst, preparation and application thereof. The catalyst is prepared by taking Gamma-Al2O3 as a carrier, taking lanthanum as an auxiliary agent, taking nickel-copper as a active component and adopting an immersion method; and the aluminum oxide accounts for 40-90%in the terms of 100% by mass, the content of nickel is 1-40% in the terms of NiO, the content of copper is 1-30% in the terms of CuO, and the lanthanum as the auxiliary agent is 0.1-10% in the terms of La2O3; and a hydrogenation evaluation result indicates that the catalyst is reduced at a temperature of 350-550 DEG C, and under the conditions that the reaction temperature is 120 DEG C, the reaction pressure is 2.5MPa, the volume ratio of hydrogen to liquid is 8:1 and the volume air speed is 3.0h<-1>, the hydrogenation rates of unsaturated substances such as octylene aldehyde, isooctyl aldehyde and octylene alcohol are all more than 95%.

Description

technical field [0001] The invention relates to a rare earth element lanthanum-modified nickel-copper two-component high-efficiency crude octanol hydrogenation catalyst and its preparation and application, in particular to reducing the activation temperature of the catalyst through lanthanum modification, reducing the nickel content of the active component, and simultaneously increasing Catalyst Activity and Activity Stability of Crude Octanol Hydrogenation Catalysts. Background technique [0002] As an important fine chemical raw material, octanol is widely used in plasticizing, medicine, dyestuff, pesticide, paint and so on. In industry, octanol is mainly produced by hydrogenation of octenal, however, in the synthesis reaction, there will be a small amount of reactants (octenal) and unsaturated by-products (isooctanal and octenol), which greatly affect the production of octanol. purity. Due to the continuous improvement of the quality requirements of fine chemicals, it i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/83B01J37/02C07C31/125C07C29/88
Inventor 张志华李晓刚郭金涛吴俊升田然杨仁春蒲延芳于春梅孙发民孙春生王福宝王刚方磊夏恩冬李凤炫
Owner PETROCHINA CO LTD
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