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A kind of kerosene co-liquefaction iron-based catalyst

An iron-based catalyst and co-liquefaction technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, hydrocarbon oil cracking, etc., can solve the problems of poor dispersion and limited activity, and achieve good activity , the use of less, the effect of mild preparation conditions

Active Publication Date: 2019-10-15
SHAANXI NORMAL UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the activity of the active component α-FeOOH in the catalyst is still limited, and the α-FeOOH crystal grains are relatively regular, and the dispersion is poor.

Method used

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  • A kind of kerosene co-liquefaction iron-based catalyst
  • A kind of kerosene co-liquefaction iron-based catalyst
  • A kind of kerosene co-liquefaction iron-based catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] It is 5wt% according to the metering load of Fe, the mol ratio of Fe, Co, Al, Zn element is 90:5:2.5:2.5, with 24.8223g (0.0893mol) ferrous sulfate heptahydrate, 1.3946g (0.0050mol) seven Cobalt sulfate hydrate, 0.8331g (0.00125mol) aluminum sulfate octadecahydrate, 0.7175g (0.0025mol) zinc sulfate heptahydrate were added to 500mL distilled water to prepare a sulfate solution, and then 100g was added to the sulfate solution with a specific surface area of ​​600 ()m 2 / g of activated carbon, and the flow rate is 1m 3 / h of air, while adding 1mol / L ammonia solution to keep the pH of the reaction solution between 6.0 and 7.0, react at 38°C for 1.5 hours, discharge the material after the reaction, suction filter and dry in a constant temperature oven at 100°C Dry in medium to obtain a Co-Al-Zn-FeOOH / activated carbon catalyst with a Fe metered loading of 5 wt%.

[0027] Depend on figure 1 It can be seen that the obtained catalyst has obvious α-FeOOH characteristic diffrac...

Embodiment 2

[0029] It is 5wt% according to the metering load of Fe, and the mol ratio of Fe, Ni, Al element is 90:5:5, with 248.2232g (0.8929mol) ferrous sulfate heptahydrate, 13.0381g (0.0496mol) nickel sulfate hexahydrate, Add 16.5275g (0.0248mol) aluminum sulfate octadecahydrate to 5L distilled water to prepare a sulfate solution, then add 1000g to the sulfate solution with a specific surface area of ​​600m 2 / g of activated carbon, and the flow rate is 1.5m 3 / h of air, while adding industrial ammonia water with a mass fraction of 25%, keeping the pH of the reaction solution between 6.0 and 7.0, reacting at 35°C for 2 hours, discharging the material after the reaction, suction filtration and keeping the temperature at 110°C Dry in a drying oven to obtain a Ni-Al-FeOOH / activated carbon catalyst with a Fe metered loading of 5 wt%.

[0030] Depend on figure 1 It can be seen that the obtained catalyst has obvious α-FeOOH characteristic diffraction peaks at 18°, 21°, 26°, 33°, 35°, 37°, ...

Embodiment 3

[0032] It is 5wt% according to the metering load of Fe, the mol ratio of Fe, Ni, Al, Zn element is 90:5:2.5:2.5, with 24.8223g (0.0893mol) ferrous sulfate heptahydrate, 1.3142g (0.0050mol) hexahydrate Nickel sulfate hydrate, 0.8331g (0.00125mol) aluminum sulfate octadecahydrate, 0.7175g (0.0025mol) zinc sulfate heptahydrate are added to 500mL distilled water, are mixed with sulfate solution, then add 100g specific surface area to this sulfate solution 600m 2 / g of activated carbon, and the flow rate is 1m 3 / h of air, while adding 1mol / L ammonia solution to keep the pH of the reaction solution between 6.0 and 7.0, react at 38°C for 1.5 hours, discharge the material after the reaction, suction filter and dry in a constant temperature oven at 110°C Dry in medium to obtain a Ni-Al-Zn-FeOOH / activated carbon catalyst with a Fe metered loading of 5 wt%.

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Abstract

The invention discloses an iron-based catalyst for co-liquefaction of kerosene. Nanometer alpha-FeOOH is taken as a main active component of the catalyst, few secondary active elements Ni and Co are doped, and few Al and Zn elements are added for increasing the dispersity of FeOOH, so that the overall activity of the catalyst can be promoted. Meanwhile, the activated carbon in a large specific surface area is taken as a carrier, and the active component of the catalyst is further dispersed, so that high catalytic activity is shown in the co-liquefaction reaction of kerosene and the service life of the catalyst in the co-liquefaction reaction of kerosene is prolonged. In the co-liquefaction reaction taking the catalytic cracking oil slurry as a solvent, under the synergic effects of all the components, the catalyst can show an excellent catalytic property, metal impurities in the raw materials and coking precursors generated in the reaction process can be absorbed, and thus the coking and blocking of the inner wall and the inner component of a reactor can be effectively prevented.

Description

technical field [0001] The invention belongs to the technical field of catalysts, and in particular relates to a kerosene co-liquefaction iron-based catalyst with catalytic cracking oil slurry as a solvent, high catalytic activity and long service life. Background technique [0002] Low-carbon, green, clean and efficient development has become a new round of international economic growth and competition focus, the core of which is to establish a development model with high energy efficiency and low emissions. Coal liquefaction technology has advantages in carbon dioxide emissions, comprehensive utilization of resources, and clean coal utilization. Therefore, the development of coal liquefaction technology under low coal prices is an important field for the development of coal chemical industry in the future. Among them, direct coal liquefaction technology is the contemporary coal liquefaction technology. the main aspects. [0003] Coal direct liquefaction technology is to c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/75B01J23/755B01J23/80C10G1/08C10G47/12
Inventor 刘忠文蒋中山李大鹏黄传峰石先莹
Owner SHAANXI NORMAL UNIV
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