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Catalyst and preparation method and application thereof

A technology of catalysts and additives, which is applied in the field of catalysts and can solve the problems of low yield of alcohol

Active Publication Date: 2015-11-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defect that the yield of alcohol obtained by the catalyst of the existing low-carbon alcohol reaction by synthesis gas is low, and to provide a new catalyst, the preparation method of the catalyst and the catalyst Application in the reaction of producing low-carbon alcohols from syngas

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  • Catalyst and preparation method and application thereof
  • Catalyst and preparation method and application thereof
  • Catalyst and preparation method and application thereof

Examples

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preparation example Construction

[0022]The preparation method of the catalyst provided by the invention comprises loading the above-mentioned active components and additives on an acid-washed and oxidized activated carbon carrier with a particle size of 200-2000 μm, preferably 220-1000 μm, most preferably 250-600 μm.

[0023] Wherein, the types and related parameters of the activated carbon carrier, the way of pickling and oxidation, the types and contents of active components and auxiliary agents have all been described above, and will not be repeated here.

[0024] In the present invention, the method of loading the active components and additives on the acid-washed and oxidized activated carbon carrier is not particularly limited, for example, it can be carried out by impregnation method, co-precipitation method, spraying method and other methods. Preferably, the method of loading the active components and additives on the acid-washed and oxidized activated carbon carrier is to impregnate the acid-washed an...

Embodiment 1

[0048] This embodiment is used to illustrate the catalyst provided by the present invention and its preparation method and application.

[0049] (1) Preparation of catalyst: 100 g of coconut shell activated carbon carrier AC-1 (specific surface area of ​​923 m) with a particle size of 40-60 mesh (250-380 μ 2 / g, the pore volume is 0.41cm 3 / g, the average pore diameter is 1.99nm, and the components and contents are as shown in Table 1, the same below) was added to 500mL distilled water and stirred evenly for 5min, then the resulting mixture was cleaned in an ultrasonic cleaner for 30min, filtered to obtain water-washed of activated carbon. Afterwards, add the activated carbon after washing with water and 500 mL of aqueous nitric acid solution with a molar concentration of 0.7 mol / L into the flask of the condensing reflux device, heat the reflux device to 80 ° C for reflux reaction for 2 h, and then filter, and wash the solid components with deionized water to Neutral, and th...

Embodiment 2

[0054] This embodiment is used to illustrate the catalyst provided by the present invention and its preparation method and application.

[0055] (1) Preparation of catalyst:

[0056] Prepare the catalyst according to the method of Example 1, the difference is that 500mL molar concentration of 0.7mol / L nitric acid aqueous solution is replaced by 1.4mol / L nitric acid aqueous solution with 500mL molar concentration, and 9.89g concentration is 7.3% by weight of nitric acid The aqueous zirconium solution was replaced with 14.84 g of an aqueous zirconium nitrate solution having a concentration of 7.3% by weight to obtain a catalyst B. Based on the total weight of the catalyst, the content of cobalt oxide in catalyst B is 25% by weight, the content of platinum oxide is 0.015% by weight, and the content of zirconium oxide is 4.05% by weight.

[0057] (2) Reaction of producing low-carbon alcohols from synthesis gas:

[0058] The reaction of producing low-carbon alcohols from syngas w...

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Abstract

The invention provides a catalyst and its preparation method and application. The catalyst comprises a carrier and an active component and an auxiliary agent which are loaded on the carrier, wherein the carrier is an activated carbon carrier which has undergone acid pickling and oxidation and has particle size of 200-2000 microns; the active component is the Group VIII metal component; and the auxiliary agent is the Group IVB metal component. When the catalyst provided by the invention is used in preparation of low carbon alcohols from synthesis gas, low carbon alcohols can be prepared at low temperature, and contents of low carbon alcohols, especially methanol and ethanol, in an oil-phase product are high. The preparation method has advantages of mild condition, high conversion per pass and low energy consumption, and is beneficial to industrial popularization.

Description

technical field [0001] The invention relates to a catalyst, a preparation method of the catalyst and an application of the catalyst in the reaction of producing low-carbon alcohols from synthesis gas. Background technique [0002] Preparation of low-carbon mixed alcohols from syngas (C 1 -C 5 Mixed alcohols) is one of the important ways to cleanly utilize coal or natural gas. In recent years, the application value of low-carbon mixed alcohols in the fuel and chemical fields has gradually become prominent, and related research has become increasingly active. Low-carbon mixed alcohols have been positioned as gasoline additives for their good performance indicators. The preparation of low-carbon mixed alcohols from syngas can be used as a gasoline additive to replace the heavily polluting methyl tert-butyl ether (MTBE) to increase the octane number of gasoline. In the field of fuel, alcohol fuel has the advantages of complete combustion, high efficiency, and low emissions of...

Claims

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Application Information

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IPC IPC(8): B01J23/89B01J23/75C07C29/157C07C29/156C07C31/04C07C31/08C07C1/04C07C9/04C07C9/14
CPCY02P20/52
Inventor 晋超吴玉夏国富侯朝鹏孙霞阎振楠张荣俊李明丰
Owner CHINA PETROLEUM & CHEM CORP
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