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Hydro-liquefied iron-based catalyst containing carbon materials and preparation method and application of hydro-liquefied iron-based catalyst

A technology of iron-based catalysts and additives, applied in the preparation of liquid hydrocarbon mixtures, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problem of increasing particle size, increasing catalyst cost, Complex process and other problems, to achieve the effect of sufficient raw materials, easy operation, and simple preparation process

Active Publication Date: 2016-03-02
SYNFUELS CHINA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most industrial potential is the precipitation method of alkaline solution and iron salt, but it is difficult to make a highly dispersed ultrafine particle iron-based catalyst only by conventional precipitation method without taking special measures. In addition, the Fe(OH) produced by precipitation ) 2 , Fe(OH) 3 When the particles are dried and dehydrated or roasted Fe 2 o 3 During the process, the particle size will increase sharply, and ultrasonic dispersion or grinding is required during use, which will significantly increase the cost of the catalyst, and the process is more complicated

Method used

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  • Hydro-liquefied iron-based catalyst containing carbon materials and preparation method and application of hydro-liquefied iron-based catalyst
  • Hydro-liquefied iron-based catalyst containing carbon materials and preparation method and application of hydro-liquefied iron-based catalyst
  • Hydro-liquefied iron-based catalyst containing carbon materials and preparation method and application of hydro-liquefied iron-based catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Example 1, preparation of creamy iron-based catalyst C-1

[0049] According to the component mass ratio Fe: auxiliary agent (in terms of oxide): mineral spirits=100:17:370, take by weighing industrial FeSO 4 ·7H 2 O400 kilograms, 38.67 kilograms of aluminum sols of 20wt%, 20.6 kilograms of silica sols of 30wt%, 300 kilograms of catalytic cracking cycle oils. 20wt% ammonia water was used as precipitating agent.

[0050] Add 1500 kilograms of deionized water in the salt solution preparation tank, the above-mentioned industrial FeSO 4 ·7H 2 O is added in the salt solution preparation tank and stirred and dissolved, aluminum sol and silica sol are added in the fully dissolved ferrous sulfate solution, and stirred evenly; the concentration of 20wt% ammoniacal liquor 1M is added in the precipitant tank 3 ; Add 1000 kilograms of deionized water in the synthetic kettle, start the synthetic kettle to stir, the FeSO containing aluminum sol and silica sol 4 The mixed solution...

Embodiment 2

[0054] Example 2, preparation of creamy iron-based catalyst C-2

[0055] By component mass ratio Fe: auxiliary agent (in terms of oxide): dispersant: mineral spirits=100:17:3.5:200, take by weighing industrial FeSO 4 ·7H 2 O400 kg, 38.67 kg of 20 wt% aluminum sol, 20.6 kg of 30 wt% silica sol, 200 kg of coal tar and 2.8 kg of Span-80. With 34wt% NaOH solution as precipitant, weigh 336.6 kg for later use.

[0056] Add 1500 kilograms of deionized water in the salt solution preparation tank, the above-mentioned industrial FeSO 4 ·7H 2 O is added to the salt solution preparation tank and stirred to dissolve, aluminum sol and silica sol are added to the fully dissolved ferrous sulfate solution, and stirred evenly; the weighed sodium hydroxide solution is added to the precipitant tank; 1000 Kilograms of deionized water, start the synthesis kettle to stir, the FeSO containing aluminum sol and silica sol 4 The mixed solution and the sodium hydroxide solution were continuously fed...

Embodiment 3

[0060] Example 3, preparation of creamy iron-based catalyst C-3

[0061] According to the component mass ratio Fe: auxiliary agent (in terms of oxide): dispersant: mineral spirits=100:20:3.5:500, take by weighing industrial FeSO 4 ·7H 2 O400 kg, 2.8 kg of CaO powder, 38.67 kg of 20wt% aluminum sol, 20.6 kg of 30wt% silica sol, 2.8 kg of Span-80 and 255 kg of catalytic cracking oil slurry. With 18wt% Na 2 CO 3 Solution is precipitating agent, takes by weighing 850 kilograms for subsequent use.

[0062] Add 1500 kilograms of deionized water in the salt solution preparation tank, the above-mentioned industrial FeSO 4 ·7H 2 O is added to the salt solution preparation tank and stirred to dissolve, aluminum sol and silica sol are added to the ferrous sulfate solution that is completely dissolved, and stirred evenly; the weighed sodium carbonate solution is put into the precipitant tank; Kilograms of deionized water, start the synthesis kettle to stir, the FeSO containing alumi...

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Abstract

The invention discloses a hydro-liquefied iron-based catalyst containing carbon materials and a preparation method and application of the hydro-liquefied iron-based catalyst. The method comprises the following steps that 1, a ferrous sulfate solution is prepared; 2, when SiO2 and / or Al2O3 is contained in an additive, a silicon source and / or aluminum source are / is added to the ferrous sulfate solution, a precipitating agent is added for coprecipitation, and precipitated slurry is obtained; 3, the precipitated slurry is washed with water and filtered to obtain a filter cake; 4, the missible-oil-shaped iron-based catalyst is obtained according to the following step 1 or 2, according to the step 1, the filter cake is mixed with solvent naphtha or mixed liquid of solvent naphtha and a dispersing agent to obtain a mixture, the mixture is crushed through mechanical stirring, the crushed material is sheared to obtain the missible-oil-shaped iron-based catalyst, the dehydration process is carried out during the shearing process, and according to the step 2, when MgO and / or CaO is contained in the additive, the method is carried out according to the following step a or b. The missible oil catalyst is stable in system state, is not layered in the storage process, and can be continuously stored for more than three months without going bad, and therefore the catalyst is very suitable for large industrial use.

Description

technical field [0001] The invention relates to a carbon-containing resource hydrogenation liquefaction catalyst and its preparation method and application, in particular to an iron-based catalyst for carbon-containing raw material hydrogenation liquefaction and its preparation method and application, belonging to the field of energy and chemical catalysis. Background technique [0002] Coal, biomass, residual oil, heavy oil, etc. are all important and valuable carbon resources. my country is relatively rich in coal resources, especially young hydrogen-rich coal reserves such as lignite and bituminous coal, which can be directly liquefied by high-pressure catalytic hydrogenation to generate liquid fuels. Furthermore, liquid fuels can also be generated through the co-hydrogenation and liquefaction of the mixture of the above-mentioned carbon-containing resources, such as coal / residue oil, coal / heavy oil, biomass / coal, biomass / residue oil, biomass / heavy oil, etc. High-pressur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745B01J23/78B01J35/12C10G1/06B01J35/27
Inventor 田磊郭强姜大伟王洪杨勇李永旺
Owner SYNFUELS CHINA TECH CO LTD
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