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Nickel-based catalyst for preparing isopropyl alcohol by acetone hydrogenation and application thereof

A technology of catalyst and isopropanol, which is applied in the field of catalyst for preparing isopropanol and its preparation, can solve problems such as unsatisfactory use of the catalyst, and achieve the effects of long service life, low content of metal active components, and high conversion rate

Active Publication Date: 2010-12-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In order to solve the unsatisfactory problem of catalyst use in the existing acetone hydrogenation production isopropanol process, the inventor has carried out more detailed research on the basis of existing catalysts, and found that adding a small amount of metal Mo and Zn in the nickel-based catalyst can Significantly improve the yield of isopropanol produced by the acetone hydrogenation of the catalyst, carry out the test of simulated industrial production conditions and the catalyst comparison test, test results show that using the catalyst of the present invention, the yield of isopropanol can reach 99.4%

Method used

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  • Nickel-based catalyst for preparing isopropyl alcohol by acetone hydrogenation and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Using the equal volume impregnation method, according to the water absorption rate of the alumina carrier (produced by Beijing Research Institute of Chemical Industry), the required amount of nickel nitrate, ammonium molybdate and zinc nitrate were dissolved in deionized water to make the volume and the water absorption of the alumina carrier In the same solution, the alumina carrier is impregnated in the solution, dried, calcined, and reduced. Catalyst A-1 containing 10% Ni, 1.0% Mo and 1.0% Zn was made, and the specific surface area and pore volume of the catalyst were measured, which were 174m 2 / g, the pore volume is 0.39m 3 / g.

[0026] Put catalyst A-1 into a fixed-bed reactor, feed acetone and hydrogen, at 150°C, normal pressure, acetone liquid hourly space velocity 0.5h -1 The catalytic hydrogenation performance of the catalyst was evaluated. The test results are shown in Table 1.

Embodiment 2

[0028] Put the catalyst A-1 described in Example 1 into a fixed bed reactor, feed acetone and hydrogen, at 140°C, 1.30MPa, acetone liquid hourly space velocity 0.5h -1 The catalytic hydrogenation performance of the catalyst was evaluated as follows, and the test results are shown in Table 1.

Embodiment 3

[0030] Prepare catalyst according to the catalyst preparation method of Example 1, the difference is that the catalyst made contains 12% Ni, 0.5% Mo and 0.5% Zn, is denoted as catalyst A-2, measures the specific surface area and pore volume of catalyst, is respectively 142m 2 / g, the pore volume is 0.32m 3 / g.

[0031] Put the catalyst A-2 into the fixed bed reactor, feed acetone and hydrogen, at 140°C, 1.30MPa, acetone liquid hourly space velocity 0.5h -1 The catalytic hydrogenation performance of the catalyst was evaluated. The test results are shown in Table 1.

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Abstract

The invention discloses a nickel-based catalyst for preparing isopropyl alcohol by acetone hydrogenation and application thereof. In order to solve the problem of non-desired catalyst application in the prior art for preparing isopropyl alcohol by acetone hydrogenation, in the invention, a small quantity of metals Mo and Zn are added into the nickel-based catalyst so as to obviously improve the yield coefficient of the catalyst for preparing the isopropyl alcohol by acetone hydrogenation; a test for simulating industrial production conditions and a catalyst comparison test are carried out, and the test result shows that the yield coefficient of the isopropyl alcohol can reach 99.4% by adopting the catalyst of the invention at a certain temperature and pressure. Compared with the traditional nickel-based catalyst, and the content of the main active component nickel is reduced, therefore, the production cost of the catalyst is effectively reduced.

Description

technical field [0001] The invention relates to a catalyst for isopropanol and its preparation method and application. More specifically, the invention relates to a catalyst for preparing isopropanol using nickel as the main active component of the catalyst, its preparation method and application. Background technique [0002] The production of isopropanol can be obtained by hydration of propylene, such as the indirect esterification method using sulfuric acid and the direct hydration method using a solid acidic catalyst or a cation exchange resin catalyst. [0003] Most acetone in industry is obtained by peroxidation of cumene and co-produced with phenol. Due to the increase in the demand for phenol, a large amount of acetone is co-produced, and there is an imbalance between supply and demand, which often leads to an overproduction of acetone. This makes the hydrogenation of acetone to produce isopropanol an economically viable route for some periods. [0004] The hydroge...

Claims

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Application Information

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IPC IPC(8): B01J23/883C07C31/10C07C29/145
Inventor 唐国旗田保亮李宝芹张桂英戴伟
Owner CHINA PETROLEUM & CHEM CORP
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