Catalyst for use in preparation of methane from synthesis gas and coproduction of petroleum product and preparation and application methods thereof

A technology of mixing catalysts and catalysts, applied in the field of catalytic chemistry, can solve the problems of large consumption in winter and unbalanced urban gas consumption, and achieve the effect of improving economic benefits

Inactive Publication Date: 2014-09-17
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the gas consumption in cities in my country is very unbalanced. The northern region uses a lot of gas in winter and less gas in non-heating seasons. The problem of peak regulation is very serious.

Method used

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  • Catalyst for use in preparation of methane from synthesis gas and coproduction of petroleum product and preparation and application methods thereof
  • Catalyst for use in preparation of methane from synthesis gas and coproduction of petroleum product and preparation and application methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042]The preparation method of embodiment 1 catalyst

[0043] 1.1 Catalyst preparation process

[0044] The corresponding metal nitrates are sequentially added to the alumina carrier in proportion, dried at 120° C., and calcined at 400 to 800° C. to obtain the desired catalyst.

[0045] 1.2 0.5%Re5%Mn15%CoO / Al 2 o 3 preparation

[0046] Put AL 2 o 3 The carrier is calcined and purified at a temperature of 550°C. After cooling, an equal volume impregnation is performed. 2.61g of Mn(NO3) 2 ·6H 2 O and 7.4g of Co(NO3) 2 ·6H 2 O was dissolved in 6ml deionized water, and the mixed aqueous solution was impregnated to 7.95g Al 2 o 3 On the support, excess solvent was evaporated in a water bath at 80°C. The obtained sample was dried in an oven at 120°C for 12 hours. After drying, the sample was placed in a muffle furnace, heated to 500°C at a heating rate of 2°C / min, and calcined for 3 hours to obtain a catalyst precursor. Add 0.0896 perrhenic acid to 7ml of aqueous sol...

Embodiment 2

[0049] Embodiment 2 product analysis method

[0050] The obtained product was analyzed with Agilent 7890A. The chromatograph is equipped with dual detectors FID and TCD, and has a ten-way valve, which allows the products to enter the packed column and capillary column respectively at the same time. Data were processed with Agilent's Chemstation software.

[0051] The specific chromatographic conditions of Agilent are as follows:

[0052] Chromatography: Agilent 7890A

[0053] FID column: HP-PONA 19091S-001, 50mx0.2mm (inner diameter), 0.5μm film thickness

[0054] Carrier gas: helium, 2.5ml / min

[0055] Oven temperature: 35°C for 5 minutes

[0056] 35-150°C, 5°C / min

[0057] 150℃ for 10min

[0058] Inlet: Split (100:1) Temperature: 170°C

[0059] Detector: FID 250°C

[0060] TCD column: carbon molecular sieve column, TDX-01 2mx2mm (inner diameter)

[0061] Carrier gas: helium, 20ml / min

[0062] Oven temperature: 35°C for 5 minutes

[0063] ...

Embodiment 3

[0067] Example 3 Catalytic Reaction Performance of Syngas to Methane and Oil Production

[0068] In a tubular fixed-bed reactor, the prepared catalyst was tested and evaluated for the catalytic reaction performance of synthesis gas to methane and co-production of oil. According to the requirements of the present invention, the process of syngas to methane parallel co-production of oil is set as follows:

[0069] Raw material composition: H2 / CO / Ar Argon (Ar) as internal standard

[0070] Catalyst weight: 1.0g

[0071] Catalyst particle size: 40-60 mesh

[0072] Catalyst bed height: ~10mm

[0073] At the beginning of the investigation, the catalyst was first reduced at 500°C for 5 hours under the condition of pure hydrogen, or diluent gas, or synthesis gas, and then the temperature of the bed was lowered to the specified temperature, and the synthesis gas was introduced to react. The reactor is heated by an electric furnace, and the reaction temperature is controlled by a th...

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Abstract

The invention discloses a method for preparing methane from synthesis gas and coproducing a petroleum product. A technology comprises preparation of a catalyst and technical conditions for synthesizing methane and coproducing a petroleum product. The catalyst consists of Cat1 and Cat2, wherein Cat1 is a nickel-based catalyst which is mainly applied to a methanation reaction; Cat2 is a cobalt-based catalyst which is mainly applied to a reaction for synthesizing the petroleum product; and the two catalysts are mixed physically for undergoing a reaction for methanation and coproduction of the petroleum product. The synthesis gas is taken as a raw material, has a wide source, and can be obtained from coal and biomass. The catalyst has low cost and very high efficiency, and is easy to prepare; and a product can be adjusted as required, and is suitable for continuous large-scale production.

Description

technical field [0001] The invention belongs to the field of catalytic chemistry, relates to the conversion of synthesis gas into methane and co-production of oil products, and in particular provides a catalyst for synthesizing methane at medium and low temperature and co-production of oil products, the preparation of the catalyst and its application. Background technique [0002] With the implementation of the domestic sustainable development strategy and the strengthening of environmental protection policies, the domestic demand for natural gas has increased significantly. Domestic natural gas production cannot fully meet the market demand, and the contradiction between supply and demand is prominent. Therefore, it is necessary to expand resource supply through multiple channels and methods to meet the growing growing market demand. At the same time, based on the characteristics of my country's oil-scarce, gas-rich and coal-rich energy structure, the development of coal-to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/889B01J23/89C07C9/04C07C1/04C10G2/00
Inventor 朱文良刘中民刘勇刘洪超孟霜鹤李利娜刘世平
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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