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Fischer-Tropsch catalyst, as well as preparation method and application thereof

A Fischer-Tropsch synthesis and catalyst technology, which is applied in chemical instruments and methods, preparation of liquid hydrocarbon mixtures, physical/chemical process catalysts, etc., can solve problems such as uneven mixing, and achieve improved quality stability, stable quality, and high response active effect

Active Publication Date: 2015-06-17
SYNFUELS CHINA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to select suitable SiO 2 Precursors instead of commercial silica sols to address SiO produced by commercial silica sols 2 The problem of uneven mixing with iron species, increasing the surface area of ​​the catalyst, improving the mechanical strength of the catalyst, thereby greatly improving the activity and reaction stability of the catalyst

Method used

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  • Fischer-Tropsch catalyst, as well as preparation method and application thereof
  • Fischer-Tropsch catalyst, as well as preparation method and application thereof
  • Fischer-Tropsch catalyst, as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Take by weighing 19.8 kilograms of potassium silicate and prepare 10wt% potassium silicate solution, pass through the 001×7 strongly acidic styrene-based cation exchange resin with a pH value of 6-7 under the condition of 25mL / min at a flow rate to obtain a pH= 5-6 silicic acid solution, pass this silicic acid solution through 201×7 strongly basic styrene-based anion exchange resin with a pH value of 8-9 at a flow rate of 20mL / min to obtain SiO 2 Concentration is 112 kilograms of active silicic acid solution of 5%; In described active silicic acid solution, add 0.85 kilogram of iron nitrate nonahydrate (SiO 2 The mass ratio of Fe to Fe is 100:1.97), fully dissolved, aged at 80°C for 5 hours, and added after dissolving 211.75 kg of ferric nitrate nonahydrate to obtain an aged active silicic acid solution containing Fe; then added to the mixed nitrate solution (taking by weighing 5.7 kilograms of copper nitrate trihydrate, 35.8 kilograms of 50wt% manganese nitrate solutio...

Embodiment 2

[0076] Take by weighing 19.8 kilograms of potassium silicate and prepare 10wt% potassium silicate solution, pass through the 001×7 strongly acidic styrene-based cation exchange resin with a pH value of 6-7 under the condition of 25mL / min at a flow rate to obtain a pH= 5-6 silicic acid solution, pass this silicic acid solution through 201×7 strongly basic styrene-based anion exchange resin with a pH value of 8-9 at a flow rate of 20mL / min to obtain SiO 2 112 kg of active silicic acid solution with a concentration of 5%; 212.6 kg of ferric nitrate nonahydrate was dissolved and added to the active silicic acid solution to obtain a mixed solution 1, and the mixed solution 1 was aged at 30°C for 2 hours to obtain Aged reactive silicic acid solution of Fe (SiO 2 The mass ratio of Fe and Fe is 20:100); In the aging active silicic acid solution containing Fe, add the mixed nitrate solution prepared in advance (weigh 5.7 kilograms of copper nitrate trihydrate, 35.8 kilograms of 50wt% m...

Embodiment 3

[0078] Take by weighing 19.8 kilograms of potassium silicate and prepare 10wt% potassium silicate solution, pass through 001×7 strong acid styrene cation exchange resin with pH value of 6-7 under the condition of flow rate of 25mL / min, to obtain pH=5 -6 silicic acid solution, pass this silicic acid solution through 201×7 strongly basic styrene-based anion exchange resin with a pH value of 8-9 at a flow rate of 20mL / min to obtain SiO 2 Concentration is 112 kilograms of active silicic acid solution of 5%; In active silicic acid solution, add 8.5 kilograms of iron nitrate nonahydrate (SiO 2 The mass ratio of Fe and Fe is 100:20), fully dissolved, aged 3h at 50°C, and added after dissolving 204.09 kg of ferric nitrate nonahydrate to obtain an aging active silicic acid solution containing Fe; then added to the mixed nitrate solution ( Take by weighing 5.7 kilograms of copper nitrate trihydrate, 35.8 kilograms of 50wt% manganese nitrate solution and be dissolved in deionized water t...

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Abstract

The invention provides a Fischer-Tropsch catalyst, as well as a preparation method and application thereof. A silicate solution is used as a raw material, a silicic acid solution is obtained through cation exchange treatment, and Cl and other anionic impurities in the silicic acid solution are then removed through anion exchange treatment, so as to obtain an activated silicic acid solution; the activated silicic acid solution can replace commercial silica gel to serve as a silicon source for Fischer-Tropsch catalyst preparation, so as to effectively solve the difficult problem of non-uniform mixing of iron species and SiO2, further enlarge the surface area of the catalyst, and improve the mechanical strength of the catalyst. The method is simple and convenient to operate, low in cost, and very applicable for the preparation of the commercialized Fischer-Tropsch catalyst.

Description

technical field [0001] The invention belongs to the technical field of catalyst preparation, and in particular relates to a Fischer-Tropsch synthesis catalyst, a preparation method and application thereof. Background technique [0002] The Fischer-Tropsch synthesis reaction refers to the process of converting the synthesis gas obtained from the gasification of carbon-containing resources such as coal, natural gas, and biomass into hydrocarbons and chemicals. Due to the depletion of petroleum resources, Fischer-Tropsch synthesis technology has received more and more attention in recent years. Catalysts commonly used in the Fischer-Tropsch synthesis process include Fe, Co, Ru, etc. Among them, Ru is not suitable for industrial applications due to its high price. Fe and Co are the only two types of Fischer-Tropsch synthesis catalysts suitable for industrialization. [0003] SiO 2 It is the most common carrier in Fischer-Tropsch synthesis iron catalysts. Its addition can sig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/889C10G2/00
Inventor 杨勇青明王洪王珏白云坡任利荣王有良巩月伟郑林李永旺
Owner SYNFUELS CHINA TECH CO LTD
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