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Catalyst used in preparation of methane and coproduction of polycarbon hydrocarbons by using syngas, and preparation and application methods for catalyst

A catalyst and synthesis gas technology, 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: 2014-09-10
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 used in preparation of methane and coproduction of polycarbon hydrocarbons by using syngas, and preparation and application methods for catalyst
  • Catalyst used in preparation of methane and coproduction of polycarbon hydrocarbons by using syngas, and preparation and application methods for catalyst
  • Catalyst used in preparation of methane and coproduction of polycarbon hydrocarbons by using syngas, and preparation and application methods for catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The preparation method of embodiment 1 catalyst

[0055] 1.1 Catalyst 2% LiO 5% La 2 o 3 20%NiO / Al 2 o 3 making process

[0056] 6.3gAl 2 o 3 The carrier is calcined and purified at a temperature of 550°C. After cooling, an equal volume impregnation is performed. 0.429g of LiNO3, 1.328g of La(NO 3 ) 3 6H2O and 8.95g Ni(NO 3 ) 2 6H2O was dissolved in 5.5ml deionized water, and the mixed aqueous solution was impregnated into 6.3g Al by equal volume impregnation method 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, raised to 550°C at a heating rate of 2°C / min, and calcined for 5 hours to obtain a catalyst 2% LiO 5% La 2 o 3 20%NiO / Al 2 o 3

[0057] 1.2 Preparation of catalyst 100Fe5.5Mn1.3K2Cu

[0058] 46.9664g Fe(NO3)3.9H2O, 0.5521g Cu(NO3)2.3H2O were dissolved in 300ml deionized water, and 37.3245g conc...

Embodiment 2

[0061] The analytical method of embodiment 2 products

[0062] 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.

[0063] The specific chromatographic conditions of Agilent are as follows:

[0064] Chromatography: Agilent 7890A

[0065] FID column: HP-PONA 19091S-001, 50mx0.2mm (inner diameter), 0.5μm film thickness

[0066] Carrier gas: helium, 2.5ml / min

[0067] Oven temperature: 35°C for 5 minutes

[0068] 35-150°C, 5°C / min

[0069] 150℃ for 10min

[0070] Inlet: Split (100:1) Temperature: 170°C

[0071] Detector: FID 250°C

[0072] TCD column: carbon molecular sieve column, TDX-01 2mx2mm (inner diameter)

[0073] Carrier gas: helium, 20ml / min

[0074] Oven temperature: 35°C for 5 minutes

[0...

Embodiment 3

[0079] Example 3 Catalytic Reaction Performance of Syngas to Methane and Oil Production

[0080] 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:

[0081] Raw material composition: H2 / CO / Ar Argon (Ar) as internal standard

[0082] Catalyst weight: 1.0g

[0083] Catalyst particle size: 40-60 mesh

[0084] Catalyst bed height: ~10mm

[0085] 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 catalyst for reaction in the process of preparation of methane and coproduction of polycarbon hydrocarbons by using syngas, a preparation method for the catalyst and a process for synthesizing the methane and coproducing the polycarbon hydrocarbons. The catalyst consists of two parts, namely Cat1 and Cat2. The Cat1 is a nickel-based catalyst, and the catalyst is mainly used for methanation reaction. The Cat2 is an iron-based catalyst, and is mainly used for reaction in the process of synthesizing the polycarbon hydrocarbons. The two catalysts are physically mixed for reaction in the process of methanation and coproduction of the polycarbon hydrocarbons. A raw material of the catalyst is the syngas, is wide in source, and can be obtained from coal and biomass. The catalyst is low in cost and high in efficiency, and is easy to prepare; and the product can be adjusted according to requirements 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 to methane and the co-production of multi-carbon hydrocarbons, and in particular provides a catalyst for synthesizing methane at a medium and low temperature and co-production of multi-carbon hydrocarbons, 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 structu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/889B01J23/83B01J23/78C07C9/04C07C11/04C07C11/06C07C11/08C07C1/04C10G2/00
CPCY02P20/52
Inventor 朱文良刘中民刘洪超刘勇孟霜鹤李利娜刘世平
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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