Using method of SHYZ-1 hydrogenation catalyst fire retardant

A technology of SHYZ-1, hydrogenation catalyst, which is applied in hydrocarbon oil cracking, petroleum industry, etc., can solve the problem of spontaneous combustion of catalysts in contact with air, achieve the effects of reducing damage, improving regeneration utilization rate, and inhibiting spontaneous combustion of hydrogenation catalysts

Inactive Publication Date: 2019-01-04
上海阳申石化设备安装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Although the above technology has been improved, there are still disadvantages: after a long-term operation of the residual oil hydrogenation unit, due to the deposition of too much ferrous sulfide on the residual oil hydrogenation catalyst, the catalyst will spontaneously ignite when it contacts the air when the catalyst is unloaded.

Method used

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  • Using method of SHYZ-1 hydrogenation catalyst fire retardant
  • Using method of SHYZ-1 hydrogenation catalyst fire retardant
  • Using method of SHYZ-1 hydrogenation catalyst fire retardant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Device basic data

[0082] 1. System memory oil volume

[0083] The amount of oil stored in the circulation system = (volume below the normal liquid level of the raw material tank, separator, and tower) + (heat exchanger, pipeline volume) + (catalyst volume in the reactor * 30%) = 678.6kl (m3)

[0084] 2. Carrier oil

[0085] Decompression wax oil + diesel oil

[0086] 3. Feed flow

[0087] Feed flow rate 180,000-200,000Nm 3 / Hr

[0088] Decrease speed 25T / h

[0089] 4. System pressure

[0090] Normal operating pressure 16.6MPa

[0091] Reactor cold and brittle temperature and pressure 93.3°C, 48Mpa

[0092] Pressure relief speed less than 1.5MPa / Hr

[0093] 5. Temperature

[0094] The maximum temperature of the reaction operation is 410°C

[0095] The cooling rate is less than 20°C / h

[0096] 6. Circulating gas

[0097] Circulating gas flow rate 180,000-200,000Nm 3 / Hr

[0098] 7. The maximum temperature of the catalyst bed

[0099] The final temperatur...

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Abstract

The invention discloses a using method of an SHYZ-1 hydrogenation catalyst fire retardant. The using method is characterized by comprising the following steps: (1) temperature reduction and quantity reduction; (2) oil replacement of wax oil; (3) diesel oil replacement; (4) fire retardant injection; (5) film formation; and (6) gas cooling replacement. The fire retardant disclosed by the invention has good fire retardant effect, and the generation of hydrogenation catalyst autoignition after the reaction in the agent discarhge process can be inhibited effectively.

Description

technical field [0001] The invention relates to a method for using a flame retardant, in particular to a method for using a SHYZ-1 hydrogenation catalyst flame retardant, and belongs to the technical field of chemical engineering. Background technique [0002] Hydrocracking technology is one of the most important secondary processing technologies in petroleum refining. It has strong adaptability of raw materials and flexible product solutions, and can directly produce clean oil products of excellent quality in the process of lightening petroleum. The core of hydrocracking is the catalyst, and the grading technology of hydrocracking catalyst is the key to the upgrading and development of hydrocracking technology. Catalyst gradation in domestic medium- and high-pressure hydrocracking and medium-pressure hydroupgrading processes are mainly divided into two categories: [0003] One is the graded use of refined catalysts and cracking agents; [0004] The second is the graded us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G47/02
CPCC10G47/02
Inventor 曹仁均
Owner 上海阳申石化设备安装有限公司
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