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Hydrocracking catalyst for vacuum residue suspension bed and preparation method and use method thereof

A vacuum residue and hydrocracking technology, applied in hydrocarbon oil cracking, petroleum industry and other directions, can solve problems such as cost reduction, damage to equipment and safety hazards, soaring production temperature and other problems, achieve a wide range of raw material sources, prevent clogging, The effect of preventing temperature spikes

Inactive Publication Date: 2014-11-26
XINJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a vacuum residue suspension bed hydrocracking catalyst and its preparation method and use method, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem that the existing residue suspension bed hydrocracking catalyst cannot meet production needs The temperature soars during the reaction with residual oil, causing damage to equipment and potential safety hazards, which greatly reduces costs

Method used

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  • Hydrocracking catalyst for vacuum residue suspension bed and preparation method and use method thereof

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Effect test

Embodiment 1

[0016] Embodiment 1, the vacuum residue suspended bed hydrocracking catalyst is obtained according to the following steps: the first step, select pyrite, and the mass percentage of iron is 40% to 50% of pyrite as raw material; In the second step, the pyrite raw material selected in the first step is primary ground to a particle size of less than or equal to 200 mesh to obtain a vacuum residue suspended bed hydrocracking catalyst.

Embodiment 2

[0017] Embodiment 2, this vacuum residue suspended bed hydrocracking catalyst is obtained according to the following steps: the first step, select pyrite, the mass percent composition of iron is 40% to 50% and S: the mol ratio of Fe The pyrite of 1.6 to 2.0 is used as a raw material; in the second step, the pyrite raw material selected in the first step is primary ground to a particle size of less than or equal to 200 mesh to obtain a vacuum residue suspended bed hydrocracking catalyst.

Embodiment 3

[0018] Embodiment 3, the vacuum residue suspended bed hydrocracking catalyst is obtained according to the following steps: the first step, select pyrite, and use the pyrite whose mass percentage of iron is 40% to 50% as raw material; In the second step, the pyrite raw material selected in the first step is primary ground to a particle size less than or equal to 200 mesh to obtain a vacuum residue suspended bed hydrocracking catalyst; in the third step, the vacuum residue suspended bed The hydrocracking catalyst is deeply ground to a particle size of 100nm to 1μm to obtain a high-quality vacuum residue suspended bed hydrocracking catalyst.

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Abstract

The invention discloses a hydrocracking catalyst for a vacuum residue suspension bed and a preparation method and a use method thereof. The hydrocracking catalyst for the vacuum residue suspension bed is prepared by the following step of: selecting iron pyrite of which the mass percentage content of iron is 40-50 percent for serving as a raw material. The hydrocracking catalyst for the vacuum residue suspension bed is prepared from a cheap iron pyrite raw material, and has the advantages of wide raw material source and simple treatment and preparation processes; the coke yield is low and the fraction yield is high under a low pressure condition; generated coke can suspend in liquefaction oil without being attached to the inner wall of a high-pressure electromagnetic stirring reaction kettle, so that blockage of a reactor and a pipeline in an industrial device is prevented; hydrogenation lightening is performed on vacuum residues through a two-section reaction, the temperature is controlled stably, the phenomenon of violent temperature rise in a hydrogenation lightening process of vacuum residues is avoided, and the coke yield is further suppressed; and a foundation is laid for the industrialization of a vacuum residue suspension bed hydrocracking technology.

Description

technical field [0001] The invention relates to the technical field of vacuum residue oil processing, and relates to a suspension bed hydrocracking catalyst for vacuum residue oil, a preparation method and a use method. Background technique [0002] The residual oil from the decompression tower of the refinery is called vacuum residue (boiling point is above 500°C). The literature points out that the vacuum residue accounts for 38% to 45% of my country's crude oil refining process. Petroleum is a limited How to make full use of the vacuum residue and turn it into usable gasoline and diesel has become an important task for domestic and foreign petroleum researchers. [0003] Common vacuum residue processing methods include delayed coking, visbreaking, catalytic cracking, fixed bed and ebullating bed hydrogenation. ⑴Delayed coking, the literature points out that delayed coking can process various high-sulfur, high-carbon, high-metal, high-asphaltene inferior residues, but its ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G47/02
Inventor 马凤云陈秋艳胡慧玲刘景梅刘学蛟孙志强
Owner XINJIANG UNIVERSITY
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