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Catalyst applied to producing methane and co-producing petroleum products by utilizing syngas and preparation and application method thereof

A technology for synthesis gas and methane production, 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: 2014-06-11
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 applied to producing methane and co-producing petroleum products by utilizing syngas and preparation and application method thereof
  • Catalyst applied to producing methane and co-producing petroleum products by utilizing syngas and preparation and application method thereof
  • Catalyst applied to producing methane and co-producing petroleum products by utilizing syngas and preparation and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The preparation mode of embodiment 1 catalyst

[0036] 1.1 Catalyst preparation process

[0037] Add the aqueous solution of nickel nitrate, lanthanum nitrate and lithium nitrate in sequence to the γ-alumina carrier, adopt equal volume impregnation, the oxide content of the active component is the percentage of the total weight of the catalyst, dry at 120°C, and roast at 400 to 800°C to obtain the desired catalyst.

[0038] 1.2 Catalyst 2% LiO 5% La 2 o 3 20%NiO / Al 2 o 3 making process

[0039] 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 8.95gNi(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 f...

Embodiment 2

[0040] Embodiment 2 product analysis method

[0041] 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.

[0042] The specific chromatographic conditions of Agilent are as follows:

[0043] Chromatography: Agilent 7890A

[0044] FID column: HP-PONA 19091S-001, 50m×0.2mm (inner diameter), 0.5μm film thickness

[0045] Carrier gas: helium, 2.5ml / min

[0046] Oven temperature: 35°C for 5 minutes

[0047] 35-150°C, 5°C / min

[0048] 150℃ for 10min

[0049] Inlet: Split (100:1) Temperature: 170°C

[0050] Detector: FID 250°C

[0051] TCD chromatographic column: carbon molecular sieve column, TDX-01 2m×2mm (inner diameter)

[0052] Carrier gas: helium, 20ml / min

[0053] Oven temperature: 35°C for 5 minutes...

Embodiment 3

[0058] Example 3 Catalytic Reaction Performance of Syngas to Methane and Oil Production

[0059] 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:

[0060] Raw material composition: H2 / CO / Ar Argon (Ar) as internal standard

[0061] Reaction pressure: 3.0MPa

[0062] Volumetric space velocity GHSV of raw materials: 7000hr -1

[0063] Catalyst weight: 1.0g

[0064] Catalyst particle size: 40-60 mesh

[0065] Catalyst bed height: ~10mm

[0066] 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 t...

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Abstract

Provided are a catalyst applied to producing methane and co-producing by utilizing syngas, process conditions for preparing the catalyst and synthesizing the methane. The catalyst is composed of ABNiO / C, the active component is nickel oxide, and the content of metallic nickel accounts for 1.0-30.0wt% of the total weight of the catalyst. A carrier C is aluminum oxide (Al2O3), zirconium oxide (ZrO), silicon dioxide (SiO2) or titanium oxide, and the content of the carrier C accounts for 40-95wt% of the total weight of the catalyst. An assistant A is lanthanum (La), stannum (Sn) and / or cerium (Ce), and the content of the assistant A accounts for 1.0-15.0wt% of the total weight of the catalyst. An assistant B is lithium (Li), sodium (Na) and / or kalium (K), and the content of the assistant B accounts for 0.1-5.0wt% of the total weight of the catalyst. The preparation process of the catalyst adopts an immersion method, the carrier C is immersed in corresponding nitrate and nickel nitrate of the A and the B according to a certain sequence, and the catalyst is obtained by roasting the carrier C at the temperature of 400-800 DEG C. The syngas serving as a raw material is wide in source and can be obtained from coal or biomass. The catalyst is low in cost, simple in preparation, high in efficiency, capable of being regulated according to needs and 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): B01J23/755B01J23/83B01J21/04B01J37/02C10G2/00
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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