Microspheric Fischer-Tropsch synthesis catalyst and preparation method and application of microspheric Fischer-Tropsch synthesis catalyst

A Fischer-Tropsch synthesis and catalyst technology, applied in chemical instruments and methods, preparation of liquid hydrocarbon mixtures, catalysts for physical/chemical processes, etc., can solve the problems of easy flying temperature, difficult reaction heat removal, low selectivity of heavy hydrocarbons, etc. , to achieve the effect of promoting dispersion, good technical effect and improving activity

Active Publication Date: 2014-03-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the technical problems to be solved by this invention is that in the prior art, the Fischer-Tropsch synthesis reaction is a strong exothermic reaction. When using a fixed bed, the reaction is difficult to remove heat, and it is easy to overheat, which makes the catalyst easily deactivated; bed, the problem of low selectivity of heavy hydrocarbons, providing a new microspherical Fischer-Tropsch synthesis catalyst

Method used

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  • Microspheric Fischer-Tropsch synthesis catalyst and preparation method and application of microspheric Fischer-Tropsch synthesis catalyst
  • Microspheric Fischer-Tropsch synthesis catalyst and preparation method and application of microspheric Fischer-Tropsch synthesis catalyst
  • Microspheric Fischer-Tropsch synthesis catalyst and preparation method and application of microspheric Fischer-Tropsch synthesis catalyst

Examples

Experimental program
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Effect test

Embodiment 1

[0038] 450.6 grams of ferric nitrate is dissolved in 500 grams of water to obtain material (I), 10.71 grams of cesium hydroxide is heated and dissolved in 10 grams of water to obtain material (II), 22.6 grams of magnesium nitrate and 26.54 grams of zinc nitrate are added to 100 grams of water, stirred and dissolved to obtain Material (Ⅲ), in material (I), add 97.8 grams of manganese nitrate to obtain material (Ⅳ).

[0039] Adding 312.5 grams of weight concentration in material (Ⅳ) under stirring is the silica sol material of 40%, then slowly add material (Ⅱ), material (Ⅲ); Regulate the acidity of above-mentioned slurry with ammoniacal liquor to make the mixed slurry pH = 6.0, after fully stirring to obtain a slurry, the prepared slurry is subjected to microsphere formation in a spray dryer according to the usual method, and finally the inner diameter is 89 mm, and the length is 1700 mm (φ89 × 1700 mm). Roasted at 500°C for 2.0 hours in a rotary roaster to make the composition:...

Embodiment 2～5

[0059] Adopt and [embodiment 1] substantially the same method to prepare the catalyst with different composition, gained catalyst number and composition are respectively:

[0060] Example 1 50% Fe 100 Cs 5.0 Mg 8.0 mn 25.0 Zn 8.0 o x +50%SiO2 2

Embodiment 2

[0061] Example 2 40% Fe 100 K 10.0 Ca 10.0 mn 10.0 Zn 15.0 o x +60%SiO2 2

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Abstract

The invention relates to a microspheric Fischer-Tropsch synthesis catalyst and a preparation method and application of the microspheric Fischer-Tropsch synthesis catalyst, solving the problems that as the Fischer-Tropsch synthesis reaction is the strong exothermic reaction, reaction heat is difficult to remove, temperature runaway can be easily caused, the catalyst is easy to inactivate when a fixed bed is used and heavy hydrocarbon selectivity is low when a fluidized bed is used in the prior art. According to the preparation method, at least one of oxides of Si or Al is adopted as a carrier, active components comprise the following compounds (chemical formulas are as below) according to the atomic ratio: Fe100AaBbMncZndOx, wherein A is selected from at least one of alkali metal, and B is selected from at least one of Mg and Ca; the microspheric Fischer-Tropsch synthesis catalyst can be used for industrial production of Fischer-Tropsch synthesis reaction of the fluidized bed.

Description

technical field [0001] The invention relates to a microspherical Fischer-Tropsch synthesis catalyst, a preparation method and application thereof. Background technique [0002] The method of converting synthesis gas into liquid hydrocarbons through catalyst action was invented by German scientists Frans Fischer and Hans Tropsch in 1923, referred to as F-T synthesis, that is, CO undergoes a heterogeneous catalytic hydrogenation reaction on a metal catalyst to produce linear alkanes and Olefin-based mixture process. Germany carried out research and development in the 1920s and realized industrialization in 1936. After World War II, it was closed because it could not compete economically with the oil industry; South Africa has abundant coal resources, but lacks oil resources and has long-term Restricted by international social economic and political sanctions, it was forced to develop coal-to-oil industrial technology, and built the first coal-based F-T synthetic oil plant (Sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/889C10G2/00
Inventor 陶跃武庞颖聪戴毅敏
Owner CHINA PETROLEUM & CHEM CORP
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