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Preparation method of hydrogenation catalyst and slurry bed hydrogenation technology using the catalyst

A hydrogenation catalyst and slurry bed technology, which is applied in the preparation of hydrogenation catalyst and slurry bed hydrogenation process, can solve the problems of poor catalytic performance and easy coking in the reactor, and achieve the advantages of reducing operation difficulty and significantly resisting coking. , the effect of improving the efficiency of resource utilization

Active Publication Date: 2015-12-09
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 solved by the present invention is to overcome the defects of poor catalytic performance and easy coking in the reactor that exist in the prior art of directly using the desulfurization waste agent as a hydrothermolysis catalyst, and to provide a catalyst with high catalytic activity and good anti-coking performance. Preparation method and application of hydrogenation catalyst

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  • Preparation method of hydrogenation catalyst and slurry bed hydrogenation technology using the catalyst
  • Preparation method of hydrogenation catalyst and slurry bed hydrogenation technology using the catalyst

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Effect test

Embodiment 1

[0035] The preparation method of hydrogenation catalyst described in the present embodiment, comprises the steps:

[0036] (1) Iron oxyhydroxide desulfurizer is used as a desulfurizer in the petroleum refining process, at a temperature of 400-450°C, a pressure of 6.0MPa, and a gaseous space velocity of 1000-1200h -1 Desulfurization treatment is carried out under certain conditions, the desulfurization waste agent after desulfurization is collected, and the desulfurization waste agent with a mass ratio of 1:3 is mixed with 80°C low-temperature coal tar to form a mixture; wherein, the iron oxyhydroxide desulfurization agent is The iron content is 63wt%;

[0037] (2) Under the rotating speed of 15000r / min, the mixture of step (1) is subjected to beating treatment until the particle diameter of the solid particles in the mixture is less than 1 μm to obtain the hydrogenation catalyst slurry, which is designated as catalyst 1#.

[0038] The slurry bed hydrogenation process utilizin...

Embodiment 2

[0044] The preparation method of hydrogenation catalyst described in the present embodiment, comprises the steps:

[0045] (1) Iron oxyhydroxide desulfurizer is used as the desulfurizer in the gasoline hydrodesulfurization project, at a temperature of 280°C, a pressure of 1MPa, and a volume ratio of hydrogen to oil of 70Nm 3 Carry out desulfurization treatment under the condition of / kL, collect the desulfurized waste agent after desulfurization, and mix the desulfurized waste agent with a mass ratio of 1:1 and 120°C coal tar pitch to form a mixture; wherein, the iron oxyhydroxide desulfurizer The iron content in is 40wt%;

[0046] (2) Under the rotating speed of 10000r / min, the mixture of step (1) is subjected to beating treatment until the particle size of the solid particles in the mixture is less than 1 μm to obtain the hydrogenation catalyst slurry, which is designated as catalyst 2#.

[0047] Utilize the slurry bed hydrogenation process that catalyst 2# is carried out, ...

Embodiment 3

[0053] The preparation method of hydrogenation catalyst described in the present embodiment, comprises the steps:

[0054] (1) Iron oxyhydroxide desulfurizer is used as the desulfurizer in the kerosene hydrodesulfurization project, at a temperature of 400°C, a pressure of 15MPa, and a hydrogen-oil volume ratio of 700Nm 3 Carry out desulfurization treatment under the condition of 1 / kL, collect the desulfurized waste agent after desulfurization, and mix the desulfurized waste agent with a mass ratio of 1:2 and 150°C residue oil evenly to form a mixture; wherein, the iron oxyhydroxide desulfurizer The iron content in is 52wt%;

[0055] (2) Under the rotating speed of 20000r / min, the mixture of step (1) is subjected to beating treatment until the particle size of the solid particles in the mixture is less than 1 μm to obtain the hydrogenation catalyst slurry, which is designated as catalyst 3#.

[0056] Utilize the slurry bed hydrogenation process that catalyst 3# is carried out,...

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Abstract

The invention provides a preparation method of hydrogenation catalyst and a slurry bed hydrogenation technology using the catalyst. The preparation method comprises the following steps: a desulphurization waste agent and / or a waste catalyst is placed in a solvent oil at 80-150 DEG C for beating, and a hydrogenation catalyst slurry is obtained. The preparation method of the present invention can increase dispersibility of the catalyst in raw oil and is good for improving activity of the catalyst, and simultaneously can effectively reduce even inhibite the coking problem of slurry bed. According to the slurry bed hydrogenation technology provided by the invention, the desulphurization waste agent generated in the process of slurry bed tail gas desulphurization is prepared into the hydrogenation catalyst, and the hydrogenation catalyst is calculatedly used in the hydrogenation reaction of heavy raw oil, thereby realizing cyclic utilization of catalysts with different functions in the whole slurry bed hydrogenation process flow, solving the coking problem easily generated in the slurry bed hydrogenation technology, and simultaneously developing a low-cost new approach for safety recovery of the desulphurization waste agent, the waste catalyst or the like.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a method for preparing a hydrogenation catalyst and a slurry bed hydrogenation process using the catalyst. technical background [0002] The hydrogenation process is a transformation process in which heavy / inferior raw material oil undergoes hydrogenation, desulfurization, denitrogenation, structural rearrangement and cracking of hydrocarbon molecules under high temperature and high pressure hydrogenation and the presence of a catalyst. Hydrogenation technology is fully utilized It is an effective means to improve resources, improve product quality, ensure energy green and environmental protection, and meet energy market demand. Under relatively moderate conditions, it is the development direction of hydrogenation technology to produce more light oil products from poor-quality heavy / inferior feedstock oil, reduce gas yield, increase liquid recovery, and reduce hydrogen consumpt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J38/50B01J35/10B01J23/745B01J23/888B01J23/883B01J23/882B01J23/75B01J23/94C10G47/26C10G47/02C10G47/04
Inventor 崔永君井口宪二刘欢周晓艳丁同利
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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