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Catalyst for dehydrogenation and purification of bimetallic synthesis gas and preparation method thereof

A technology for purifying catalyst and synthesis gas, which is applied in the field of bimetallic synthesis gas dehydrogenation purification catalyst and its preparation, and achieves the effects of low equipment requirements, superior catalytic performance and simple preparation method

Active Publication Date: 2012-01-04
贵州鑫醇科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are few reports on the technology and catalyst preparation for removing a small amount of H2 in industrial CO gas at home and abroad. The purpose of this invention is to provide a A high-efficiency bimetallic synthesis gas dehydrogenation purification catalyst and catalyst preparation method can remove a small amount of H2 in industrial CO gas to below 100 ppm after catalytic dehydrogenation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] Put 15 g of activated alumina particles with a diameter of 2 to 3 mm into a pre-cleaned and dried corundum crucible, place them in a muffle furnace for roasting, and slowly raise the temperature from room temperature to 500 °C through a program, keep the temperature at a constant temperature for 6 h, and then cool it down. The final alumina carrier was soaked in dilute nitric acid with a concentration of 2% at 60 °C for 10 h, washed with deionized water until neutral, dried in an oven, and stored in a desiccator; weighed 0.101 g CuCl 2 2H 2 O Pour 15 ml of dilute nitric acid solution with a concentration of 1.0%, and stir until it is completely dissolved to obtain an aqueous solution of copper ions. Add 15 g of pre-treated alumina carrier to the above aqueous solution, immerse for 8 hours, and filter out the solution. The impregnated catalyst samples were dried in an oven at 160 °C, cooled to room temperature, then placed in a muffle furnace, heated to 450 °C by program...

example 2

[0030] In Example 1, CuCl was weighed in the catalyst preparation step 2 2H 2 O weight changed to 0.202g, PdCl 2 Change the weight to 0.125g, which is the cost example. At an airspeed of 1333 h -1 , the pressure is 0.25 MPa, the reaction temperature is 130-153 ℃, the H in the raw material reaction tail gas 2 The content is lower than 1711 ppm, and the minimum H 2 The content was removed to 93 ppm, and the specific results are as follows:

[0031] Mixed gas flow (ml / min) 333 333 333 333 o 2 Flow (ml / min) 6.9 4.5 4.0 3.6 Reaction temperature (°C) 134.5 136.5 137.8 152.6 After reaction H 2 content (ppm) 93 267 384 1711

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Abstract

The invention discloses a method for preparing a catalyst for dehydrogenation and purification of bimetallic synthesis gas. The catalyst is prepared by an immersion method, wherein, copper and palladium are used as active components, and active alumina is used as a vector. The catalyst prepared by the method has the advantages that: the preparation method of the catalyst is simple, the active components are loaded uniformly, and the prepared catalyst has excellent catalytic performance to lead little H2 and O2 in industrial CO gas to perform a selective reaction, so that the content of H2 in reaction tail gas is lower than 100ppm, and the purification problem to CO gas in oxo-synthesis industry can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of catalysts, and in particular provides a bimetallic synthesis gas dehydrogenation purification catalyst and a preparation method thereof. Background technique [0002] Synthesis gas is a kind of raw material gas with carbon monoxide and hydrogen as the main components, which is used as a chemical raw material. Syngas has a wide range of raw materials, which can be produced by the vaporization of solid fuels such as coal or coke, can also be produced from light hydrocarbons such as natural gas and naphtha, and can also be produced from heavy oil by partial oxidation. [0003] The production and application of syngas plays an extremely important role in the chemical industry. A series of chemicals can be produced from syngas. The most important syngas chemical is the use of hydrogen in the syngas and nitrogen in the air to act as a catalyst. Ammonia produced by reaction under pressure. Ammonia processing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/89B01J35/10C01B31/18C01B32/40
Inventor 姚元根周张锋乔路阳崔国静潘鹏斌林凌覃业燕李兆基
Owner 贵州鑫醇科技发展有限公司
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