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Preparation method of fischer-tropsch synthesis catalyst with biological additive effect

A technology of Fischer-Tropsch synthesis and biological additives, applied in the field of preparation of Fischer-Tropsch synthesis catalysts, can solve problems such as high cost, non-conforming to green and economical production concepts, environmental pollution, etc., and achieve uniform distribution, easy operation, and excellent performance Effect

Inactive Publication Date: 2017-06-20
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

The addition of the above traditional metal additives all comes from high-cost chemical reagents, and the process of preparing catalysts will cause environmental pollution, which does not conform to the concept of green and economical production

Method used

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  • Preparation method of fischer-tropsch synthesis catalyst with biological additive effect
  • Preparation method of fischer-tropsch synthesis catalyst with biological additive effect
  • Preparation method of fischer-tropsch synthesis catalyst with biological additive effect

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Embodiment 1

[0023] The rice bran catalyst preparation process is as follows:

[0024] The raw rice bran powder is firstly pretreated, specifically roasting at 500°C for 4 hours in a flowing air atmosphere to remove carbon-containing organic compounds, thereby obtaining a black powder rich in trace minerals. Using a one-step hydrothermal synthesis method, 0.1 g of pretreated rice bran powder, 2.5 g of glucose, and 3.05 g of ferric nitrate nonahydrate were co-dissolved in 30 mL of deionized water and stirred vigorously. The resulting mixed solution was transferred to a 50mL hydrothermal synthesis reactor with a polytetrafluoroethylene liner. The reaction kettle is sealed and transferred to a hydrothermal synthesis device (also called an incubator). The condition control of the hydrothermal synthesis process is 120° C. for 20 hours. The obtained product distribution was repeatedly washed several times with deionized water and absolute ethanol. Finally, the product was dried for more than ...

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Abstract

The invention discloses a preparation method of fischer-tropsch synthesis catalyst with a biological additive effect and aims at solving the problems that traditional fischer-tropsch synthesized iron-base catalyst generally needs one or several metal additives, a preparation process is complex, and is not environmental-friendly. The preparation method disclosed by the invention is a simple and green preparation path by extracting varieties of beneficial microelements of K, Mg, Si, Mn and the like from biomass as catalyst promoters to prepare high-efficiency fischer-tropsch synthesis catalyst. By means of introducing the multi-component concomitant biological additive effect, hydrocarbon selectivity and CO conversion rate are enhanced. The preparation method can provide a full novel idea for recycling waste biomass resources and achieving green synthesis processes.

Description

technical field [0001] The invention designs a preparation method of a Fischer-Tropsch synthesis catalyst, in particular relates to a preparation method of an iron-based catalyst which has a biological aid effect and can be used for a Fischer-Tropsch synthesis reaction. Background technique [0002] With the increasing depletion of oil resources, the search for alternative energy has become an important national strategic issue. Combining with my country's energy structure, utilizing abundant coal resources and vigorously developing the coal-to-liquids industry is of great significance for alleviating the pressure of oil imports and realizing clean energy production. Fischer-Tropsch Synthesis is the core technology for catalytic conversion of coal and natural gas into liquid fuels. Fischer-Tropsch synthesis is CO and H 2 The process by which molecules polymerize on the surface of a catalyst to form long-chain hydrocarbons. Its usual main reaction formula is: (2n+1)H 2 +n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/889B01J35/08C10G2/00
CPCC10G2/332B01J21/18B01J23/8892B01J35/51
Inventor 孙剑郭立升椿范立徐恒泳
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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