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High-performance methanol synthesis catalyst and preparation method thereof

A technology for synthesizing methanol and catalysts, applied in catalyst activation/preparation, chemical instruments and methods, preparation of hydroxyl compounds, etc., to achieve the effects of good fluidity, uniform particle size, and increased surface area

Inactive Publication Date: 2018-04-20
SOUTHWEST RES & DESIGN INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the performance problems existing in domestic synthetic methanol catalysts, and provides a high-performance synthetic methanol catalyst applicable to large-scale methanol plants and its preparation method. After optimizing the catalyst preparation process, the synthetic methanol catalyst has better catalytic performance. Activity, selectivity and stability of methanol can meet the production requirements of large-scale synthesis of methanol

Method used

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  • High-performance methanol synthesis catalyst and preparation method thereof
  • High-performance methanol synthesis catalyst and preparation method thereof
  • High-performance methanol synthesis catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Weigh Zn(NO 3 ) 2 ·6H 2 O 758.93g, Al(NO 3 ) 2 9H 2 O 1913.93g, stirred and dissolved in a beaker, supplemented with desalted water and set the volume to 10L, and prepared salt solution A. Weigh Na 2 CO 3 1134.84g, stirred and dissolved in a beaker, supplemented with desalted water and set the volume to 10L, and prepared alkaline solution A. Weigh Cu(NO 3 ) 2 ·3H 2 O 1972.24g, Zn(NO 3 ) 2 ·6H 2 O1416.67g, Al(NO 3 ) 2 9H 2 O 255.19g was stirred and dissolved in a beaker, desalinated water was added and the volume was adjusted to 15L, and salt solution B was prepared. Weigh Na 2 CO 3 1464.60g, stirred and dissolved in a beaker, supplemented with desalted water and set the volume to 15L, and prepared alkaline solution B.

[0038] Preheat the salt solution A and alkali solution A to a reaction temperature of 80°C, while controlling the temperature of the reaction water bath to 80°C, and pour them into the reaction kettle in parallel under vigorous stirri...

Embodiment 2

[0042] Weigh Mg(NO 3 ) 2 ·6H 2 O 523.27g, Al(NO 3 ) 2 9H 2 O 1531.14g, stirred and dissolved in a beaker, supplemented with desalted water and set the volume to 7.5L, and prepared salt solution A. Weigh Na 2 CO 3 907.90g, stirred and dissolved in a beaker, supplemented with desalted water and set the volume to 7.5L, and prepared alkaline solution A. Weigh Cu(NO 3 ) 2 ·3H 2 O 1972.24g, Zn(NO 3 ) 2 ·6H 2 O934.06g, Al(NO 3 ) 2 9H 2 O 471.12g was stirred and dissolved in a beaker, supplemented with desalted water and adjusted to 8.0L, and the salt solution B was prepared. Weigh Na 2 CO 3 1280.77g, stirred and dissolved in a beaker, supplemented with desalted water and set the volume to 8.0L, and prepared alkaline solution B.

[0043] Preheat the salt solution A and alkali solution A to a reaction temperature of 75°C, while controlling the temperature of the reaction water bath to 75°C, and pour them into the reaction kettle in parallel under vigorous stirring ...

Embodiment 3

[0047] Weigh 50.0% Mn(NO 3 ) 2 ·6H 2 O 715.80g, Al(NO 3 ) 2 9H 2 O 1531.14g, stirred and dissolved in a beaker, supplemented with desalted water and set the volume to 8.0L, and prepared salt solution A. Weigh Na 2 CO 3 629.52g, stirred and dissolved in a beaker, supplemented with desalted water and set the volume to 8.0L, and prepared alkaline solution A. Weigh Cu(NO 3 ) 2 ·3H 2 O 1725.71g, Zn(NO 3 ) 2 ·6H 2 O 980.77g, Al(NO 3 ) 2 9H 2 O 206.11g was stirred and dissolved in a beaker, and desalted water was added and the volume was adjusted to 7.0L to prepare salt solution B. Weigh Na 2 CO 3 1183.0g, stirred and dissolved in a beaker, supplemented with desalted water and set the volume to 7.0L, and prepared alkaline solution B.

[0048] Preheat the salt solution A and alkali solution A to a reaction temperature of 70°C, while controlling the temperature of the reaction water bath to 70°C, and pour them into the reaction kettle in parallel under vigorous sti...

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Abstract

The invention provides a high-performance methanol synthesis catalyst and a preparation method thereof and belongs to the technical field of methanol catalysts. The catalyst comprises 50-80 parts by mass of copper-zinc-aluminum active component oxide and 25-40 parts by mass of a carrier compound, wherein the copper-zinc-aluminum active component oxide comprises 40-70 parts by mass of copper oxide,10-40 parts by mass of zinc oxide and 0-20 parts by mass of aluminum oxide; and the carrier compound comprises 80-100 parts by mass of zinc metaaluminate, 0-20 parts by mass of magnesium metaaluminate, 0-8 parts by mass of manganese metaaluminate, 0-7 parts by mass of calcium metaaluminate, 0-5 parts by mass of strontium metaaluminate and 0-5 parts by mass of barium metaaluminate. The invention further provides the preparation method of the methanol catalyst. The high-performance methanol synthesis catalyst and the preparation method thereof, provided by the invention, have the beneficial effects that as the catalyst preparation process and a carrier compound adding mode are optimized, the high-performance methanol synthesis catalyst is a high-performance catalyst suitable for industriallarge-scale methanol synthesis; the prepared catalyst by the preparation method provided by the invention has better high and low temperature activity, heat resistance and aging resistance and has higher physical strength distribution, methanol space-time yield, methanol selectivity and stability.

Description

technical field [0001] The invention belongs to the technical field of methanol catalysts, in particular to a preparation method of a catalyst for synthesizing methanol with high performance. Background technique [0002] Methanol, as a widely used bulk basic organic chemical raw material, ranks fourth in consumption after ethylene, propylene and benzene. In recent years, with the rapid development of modern coal chemical industry, the demand for methanol has increased sharply. Among them, modern coal chemical plants such as MTO and MTA have the largest demand for methanol, which has greatly promoted the increase of methanol production capacity. By the end of 2016, domestic industrial methanol production capacity had reached 75.5 million tons / a, of which the production capacity of large-scale methanol plants exceeded 30 million tons / year. [0003] The large-scale production of methanol puts forward higher requirements on the activity, selectivity and heat resistance of meth...

Claims

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Application Information

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IPC IPC(8): B01J23/889B01J37/03B01J37/34B01J37/02C07C29/154C07C31/04
CPCB01J23/002B01J23/8892B01J37/0036B01J37/009B01J37/0236B01J37/035B01J37/343B01J2523/00C07C29/154B01J2523/17B01J2523/27B01J2523/31C07C31/04Y02P20/52
Inventor 胡志彪程金燮王科凌华招徐晓峰李倩黄宏温春辉
Owner SOUTHWEST RES & DESIGN INST OF CHEM IND
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