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Iron-based catalyst for process of preparing methane and co-generating petroleum products by synthesis gas, preparation and application of iron-based catalyst

A synthesis gas conversion and catalyst 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: 2014-11-26
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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  • Iron-based catalyst for process of preparing methane and co-generating petroleum products by synthesis gas, preparation and application of iron-based catalyst
  • Iron-based catalyst for process of preparing methane and co-generating petroleum products by synthesis gas, preparation and application of iron-based catalyst
  • Iron-based catalyst for process of preparing methane and co-generating petroleum products by synthesis gas, preparation and application of iron-based catalyst

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preparation mode of embodiment 1 catalyst

[0034] In 10 grams of gamma alumina carrier, in a certain order, add the aqueous solution of ferric nitrate, manganese nitrate and potassium nitrate successively, the content of active component is the percentage composition of total weight of catalyst, is respectively potassium 1.5%, iron 27%, manganese 1.5%, dried at 120°C, and calcined at 400 to 600°C to obtain the desired catalyst. Before the reaction, use pure hydrogen, or hydrogen diluted with inert gas, or synthesis gas (a mixture of H2 and CO) to reduce, and then carry out the reaction.

Embodiment 2

[0035] Example 2 Preparation of Catalyst 1.5%K 1.5%Cu27%FeO / 70%Al2O3

[0036] 0.1801g KNO3 was dissolved in 30ml deionized water, and the mixed aqueous solution was impregnated onto 8.0g Al2O3 carrier by equal volume impregnation method. The carrier is first calcined at 550°C for 4 hours. Excess solvent was evaporated in a 60°C water bath. Then 14.4278g Fe(NO3)3.9H2O and 1.2347g Cu(NO3)2.3H2O were dissolved in 30ml deionized water, and the mixed aqueous solution was loaded into the above sample in equal volume, and the excess solvent was evaporated in a 60°C water bath. The obtained sample was dried in an oven at 120°C for 12 hours. After drying, the sample was placed in a muffle furnace, and the temperature was raised to 450°C at a heating rate of 2°C / min, and roasted for 2 hours to obtain a composition of 1.5%K1.5%Cu27%FeO / 70 % / Al2O3 catalyst.

Embodiment 3

[0037] Embodiment 3. product analysis method

[0038] 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.

[0039] The specific chromatographic conditions of Agilent are as follows:

[0040] Chromatography: Agilent 7890A

[0041] FID column: HP-PONA 19091S-001, 50m x 0.2mm (inner diameter), 0.5μm film thickness

[0042] Carrier gas: helium, 2.5ml / min

[0043] Oven temperature: 35°C for 5 minutes

[0044] 35-150°C, 5°C / min

[0045] 150℃ for 10min

[0046] Inlet: Split (100:1) Temperature: 170°C

[0047] Detector: FID 250°C

[0048] TCD column: carbon molecular sieve column, TDX-01 2m x 2mm (inner diameter)

[0049] Carrier gas: helium, 20ml / min

[0050] Oven temperature: 35°C for 5 minutes

[0051] 35-150°C, 5°C / min

[...

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Abstract

The invention discloses a catalyst for reactions of preparing methane and co-generating petroleum products cogeneration by synthesis gas, preparation of the catalyst and technical conditions of methanation of and cogeneration of petroleum products of the synthesis gas. The catalyst has a formula of ABFeO / C, wherein an active component is FeO, and the content of metallic iron is 5.0-30.0 wt% of the total weight of the catalyst; an accessory ingredient A is composed of copper and manganese, and has the content of 0.01-5.0 wt% of the total weight of the catalyst; an accessory ingredient B comprises alkali metals of Li, Na, K and the like, and has the weight of 0.01-5.0 wt% of the total weight of the catalyst; and a carrier C comprises SiO2, ZrO, Al2O3, TiO2, active carbon and the like, and has the weight of 40.0 -95.0 wt% of the total weight of the catalyst. The catalyst is prepared by adopting an impregnation method through impregnating corresponding A, B, nitrates and ferric nitrate in a certain order on the carrier C, and roasting at 400-800 DEG C. The synthesis gas is adopted as the raw materials in the invention, and has wide resources; the catalyst has the advantages of low cost, simple preparation and high efficiency, can be adjusted according to requirements and is suitable for mass 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): B01J23/889B01J32/00C07C9/04C07C1/04C10G2/00
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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