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Nickel-based Fischer-Tropsch catalyst and method of use thereof

A Fischer-Tropsch catalyst and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of low activity and selectivity at low temperatures, and achieve High activity and low carbon olefin selectivity, enhanced adsorption activation, and the effect of promoting reduction

Active Publication Date: 2020-09-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] One of the technical problems solved by the present invention is the problem of low activity and selectivity of synthesis gas-based low-carbon olefins (C2-C4 olefins) catalysts in the prior art at low temperatures. A catalyst for synthesis-gas-based low-carbon olefins is provided. It is used in the production of low-carbon olefins from syngas, and has good low-temperature activity and low-carbon olefin selectivity

Method used

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  • Nickel-based Fischer-Tropsch catalyst and method of use thereof
  • Nickel-based Fischer-Tropsch catalyst and method of use thereof
  • Nickel-based Fischer-Tropsch catalyst and method of use thereof

Examples

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Effect test

Embodiment 1

[0045] Weigh 150 grams of methylamine, 350 grams of propylamine and 1000 grams of deionized water, mix them into a solution and add them to the reactor, then weigh 500 grams of silicon oxide containing 0.25% iron oxide and 0.25% zinc oxide, add them to the reactor, seal Raise the temperature to 160°C, react for 24 hours, then cool down to room temperature, filter the solid, dry at 100°C for 5 hours, and then bake at 400°C for 12 hours to obtain nanofiber silica, the SEM spectrum of which is shown in figure 1 .

Embodiment 2

[0047] Weigh 2000 grams of ethylenediamine and 1000 grams of deionized water, mix them into a solution and add them to the reaction kettle, then weigh 100 grams of silicon oxide containing 15% iron oxide, add them to the reaction kettle, seal and heat up to 170°C, and react for 12 hours After cooling down to room temperature, the solid was filtered, dried at 80°C for 24 hours, and then calcined at 500°C for 8 hours to obtain silica fibers.

Embodiment 3

[0049] Weigh 300 grams of ethylamine, 770 grams of butylamine, 1700 grams of triethylamine and 230 grams of deionized water, mix them into a solution and add them to the reaction kettle, then weigh 60 grams of silicon oxide containing 0.6% iron oxide and 2.4% zinc oxide , added to the reaction kettle, sealed and heated to 250°C, reacted for 72 hours and then lowered to room temperature, filtered the solid, dried at 120°C for 2 hours, and then calcined at 800°C for 1 hour to obtain silica fibers.

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Abstract

The invention relates to a nickel-based Fischer-Tropsch catalyst and a preparation method and application method thereof, and mainly solves the problem that a catalyst for preparation of alkene from synthetic gases has low activity and selectivity at a low temperature. According to the invention, a technical scheme is adopted, wherein a catalyst is adopted for preparation of low-carbon alkene fromthe synthesis gases, and the catalyst comprises the following components of: by weight, (1) 20-80% of Ni-containing active components and (2) 20-80% of nanometer fiber SiO2 carrier; through the technical scheme, the problem is solved well, and the Ni-based Fischer-Tropsch catalyst and the preparation method and application method thereof can be applied to industrial application for preparation ofthe low-carbon alkene from the synthesis gases.

Description

technical field [0001] The invention relates to a nickel-based Fischer-Tropsch catalyst and its application method. Background technique [0002] Low-carbon olefins (olefins with carbon atoms ≤ 4) represented by ethylene and propylene are the basic raw materials of the chemical industry. At present, the main raw materials of low-carbon olefins in the world are petroleum hydrocarbons, of which naphtha accounts for the majority, and there are Alkanes, hydrogenated diesel oil, some heavy oil, etc. At home and abroad, natural gas or light petroleum fractions are mostly used as raw materials, and low-carbon olefins are produced by steam cracking in ethylene complexes. Steam cracking is a large energy-consuming device in petrochemical industry, and it completely depends on non-renewable petroleum resources. With the increasing shortage of oil resources, it is urgent to find alternative resources. Therefore, the research work of producing olefins from natural gas instead of petr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/80B01J23/888B01J23/889B01J35/06C07C11/02C07C1/04
Inventor 宋卫林陶跃武李剑锋庞颖聪
Owner CHINA PETROLEUM & CHEM CORP
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