Sulfuration method of catalyst for hydrocracking technology

A hydrocracking and catalyst technology, applied in hydrotreating process, catalyst activation/preparation, physical/chemical process catalyst, etc., can solve the problem of not considering the joint operation of multiple sets of hydrogenation units, and achieve considerable economic benefits and social benefits Benefit, reduce vulcanization investment, simple process effect

CN102465008AActive Publication Date: 2012-05-23CHINA PETROLEUM & CHEM CORP +1
4 Cites 22 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2012-05-23

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a sulfuration method of a catalyst for hydrocracking technology. The method is as below: (1) a normally running wax oil hydrotreatment apparatus or a residuum hydrotreatment apparatus; (2) hydrocracking technical apparatuses comprise a hydrocracking reactor and a selectable hydrocracking pre-refining reactor; (3) adjusting a desulfurization rate of a recycle hydrogen sulfureted hydrogen removal apparatus in the normally running wax oil hydrotreatment apparatus or the residuum hydrotreatment apparatus; (4) introducing sulfureted hydrogen-containing gas emitted from the recycle hydrogen sulfureted hydrogen removal apparatus in the normally running wax oil hydrotreatment apparatus or the residuum hydrotreatment apparatus to the hydrocracking unit and carrying out sulfuration operation on the hydrocracking unit; (5) carrying out sulfuration according to normal conditions of a dry sulfuration method of a hydrocracking unit until completion. The method of the invention can increase sulfuration efficiency and reduce vulcanizing agent consumption.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a hydrogenation cracking process catalyst sulfuration method, in particular to a hydrocracking process sulfuration method including a high-pressure hydrocracking process unit and a hydroprocessing process unit. technical background

[0002] Due to the slow growth of crude oil production and increasingly heavy quality, the demand for clean oil products in today's world is increasing, and the product quality requirements are becoming more and more stringent. Petroleum fraction hydrogenation technology is currently the main technology for producing clean oil products, and the preparation technology of hydrogenation catalyst is the key to hydrogenation technology. The active metal component of the prepared hydrogenation catalyst is in an oxidized state, and before the oxidized state catalyst is used in industry, its active metal needs to be converted into a sulfurized state to have high catalytic activity. Therefore, the sulfidati...

Examples

Embodiment 1

[0046] Stable operation of the residual oil treatment unit. After the circulating hydrogen is mixed with the residual oil raw material, it passes through the residual oil hydroprocessing unit 1 and enters the reaction product gas-liquid separator 2 of the residual oil hydroprocessing unit to separate the gas from the generated oil. The oil hydrotreating unit circulates hydrogen to the hydrogen desulfurization unit 3 and returns to the residual oil hydrotreating unit 1 . At the same time, FF-36 and FC-32 were put into their respective reactors, dried and airtight. After the airtightness is qualified, the hydrogen partial pressure is adjusted to 14.0MPa, and the temperature is adjusted to 160°C. At this time, adjust the circulating hydrogen dehydrogenation unit 3 of the residual oil hydrotreating unit, and the circulating hydrogen containing hydrogen sulfide is introduced into the hydrocracking unit 4 for sulfidation, and then passes through the reaction product gas-liquid separ...

Embodiment 2

[0048] Stable operation of the residual oil treatment unit. After the circulating hydrogen is mixed with the residual oil raw material, it passes through the residual oil hydroprocessing unit 1 and enters the reaction product gas-liquid separator 2 of the residual oil hydroprocessing unit to separate the gas from the generated oil. The oil hydrotreating unit circulates hydrogen to the hydrogen desulfurization unit 3 and returns to the residual oil hydrotreating unit 1 . At the same time, FF-36 and FC-32 were put into their respective reactors, dried and airtight. After the airtightness is qualified, the hydrogen partial pressure is adjusted to 14.0MPa, and the temperature is adjusted to 180°C. At this time, adjust the circulating hydrogen dehydrogenation unit 3 of the residual oil hydrotreating unit, and the circulating hydrogen containing hydrogen sulfide is introduced into the hydrocracking unit 4 for sulfidation, and then passes through the reaction product gas-liquid separ...

Embodiment 3

[0050] Stable operation of the residual oil treatment unit. After the circulating hydrogen is mixed with the residual oil raw material, it passes through the residual oil hydroprocessing unit 1 and enters the reaction product gas-liquid separator 2 of the residual oil hydroprocessing unit to separate the gas from the generated oil. The oil hydrotreating unit circulates hydrogen to the hydrogen desulfurization unit 3 and returns to the residual oil hydrotreating unit 1 . At the same time, FF-36 and FC-32 were put into their respective reactors, dried and airtight. After the airtightness is qualified, the hydrogen partial pressure is adjusted to 14.0MPa, and the temperature is adjusted to 180°C. At this time, adjust the circulating hydrogen dehydrogenation unit 3 of the residual oil hydrotreating unit, and the circulating hydrogen containing hydrogen sulfide is introduced into the hydrocracking unit 4 for sulfidation, and then passes through the reaction product gas-liquid separ...