Catalyst carrier, preparation method of carrier and heavy oil hydrogenation catalyst prepared from the carrier

A catalyst carrier and non-oxidizing gas technology, applied in the direction of catalyst carrier, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of small specific surface area and pore volume, low catalytic activity, etc., and achieve high reactivity, High specific surface area, low density effect

Active Publication Date: 2016-08-17
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the hydrogenation catalysts based on mesophase carbon spheres in the prior art have very low catalytic activity for hydrogenation of heavy oil, the reason being the specific surface area and pore capacity of the mesophase carbon sphere carrier Relatively small; and then propose a method for preparing a catalyst carrier with high carrier dispersibility, large specific surface area and large pore capacity

Method used

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  • Catalyst carrier, preparation method of carrier and heavy oil hydrogenation catalyst prepared from the carrier
  • Catalyst carrier, preparation method of carrier and heavy oil hydrogenation catalyst prepared from the carrier
  • Catalyst carrier, preparation method of carrier and heavy oil hydrogenation catalyst prepared from the carrier

Examples

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Effect test

Embodiment 1

[0024] (1) Heat the coal tar pitch to 400°C for 12 hours in a pure nitrogen atmosphere at normal pressure to obtain mesophase pellets;

[0025] (2) Heating mesophase pellets to 900°C for 6 hours in a pure nitrogen atmosphere at normal pressure to obtain carrier 1;

[0026] (3) After immersing 100 g of carrier 1 in 1 L, 20 g / L ammonium molybdate solution for 4 hours, sintering at 450° C. for 8 hours to obtain catalyst 1 .

Embodiment 2

[0028] (1) Heat the coal tar pitch to 520°C for 1 hour in a pure nitrogen atmosphere at normal pressure to obtain mesophase pellets;

[0029] (2) The mesophase pellets were heated to 1300° C. for 0.5 h in a pure nitrogen atmosphere at normal pressure to obtain carrier 2;

[0030] (3) After immersing 100 g of carrier 2 in 1 L, 20 g / L ammonium molybdate solution for 4 hours, sintering at 450° C. for 8 hours to obtain catalyst 2 .

Embodiment 3

[0032] (1) Heat the coal tar pitch to 430°C for 9 hours in a pure nitrogen atmosphere at normal pressure to obtain mesophase pellets;

[0033] (2) Heating the mesophase pellets to 900°C for 5 hours in a pure nitrogen atmosphere at normal pressure to obtain the carrier 3;

[0034] (3) After impregnating 100 g of carrier 3 in 1 L, 20 g / L ammonium molybdate solution for 4 hours, sintering at 450° C. for 8 hours to obtain catalyst 3 .

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Abstract

The invention discloses a preparation method of a catalyst carrier. The method comprises the following steps: (1) carrying out heat treatment on the raw material in the non-oxide gas atmosphere under the normal pressure at a temperature of 400-520 DEG C for 1-12 hours to obtain intermediate phase pellets, wherein the raw material comprises one or a mixture of more materials in coal tar pitch and petroleum heavy oil; (2) carrying out carbonization on the intermediate phase pellets in the non-oxide gas atmosphere under the normal pressure at a temperature of 900-1300 DEG C for 0.5-6 hours. The invention also discloses the properties of the prepared carrier, and a hydrogenation catalyst prepared from the catalyst carrier. The catalyst carrier is small in particle size, low in density and easy to disperse, has larger specific surface area and pore volume, and is beneficial to the load of active components, thus being suitable for preparing s heavy oil hydrogenation thermal decomposition catalyst which can be used for removing sulfur, nitrogen, metal and heavy impurities in the oil.

Description

technical field [0001] The invention relates to a dispersed catalyst carrier and a preparation method thereof, and a heavy oil hydrogenation catalyst prepared by using the carrier, belonging to the technical field of hydrogenation catalysis. Background technique [0002] Heavy oil can be used as raw material for downstream products, but heavy oil contains impurities such as unsaturated hydrocarbons, heavy hydrocarbons, sulfur, nitrogen, metals, etc., which can easily cause coking of downstream production equipment and poisoning of downstream catalysts. Heavy oils are hydrotreated to remove the aforementioned impurities. Heavy oil hydrotreating refers to the process of adding unsaturated hydrocarbons through hydrogenation catalysts, cracking heavy hydrocarbons, converting sulfur and nitrogen organic compounds into hydrogen sulfide, removing ammonia, and removing metal impurities in a hydrogen atmosphere. [0003] Due to the high viscosity of heavy oil, it is usually necessar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J21/18B01J32/00B01J23/28C10G49/04
Inventor 任相坤井口宪二坂脇弘二
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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