Modeling method for hydrogenation reaction effluent system failure control parameter

A hydrogenation reaction and failure control technology, applied in the direction of comprehensive factory control, comprehensive factory control, electrical program control, etc., can solve the problems of lack of scientific modeling methods, unplanned shutdown accidents of REAC system, etc., to reduce unplanned shutdown Accidents, the effect of improving economic efficiency

Active Publication Date: 2008-07-23
ZHEJIANG SCI-TECH UNIV
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Problems solved by technology

Since the above research results and indicators related to the failure control parameters of the REAC system are mainly derived from the statistical analysis of corrosion phenomena, and th

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  • Modeling method for hydrogenation reaction effluent system failure control parameter
  • Modeling method for hydrogenation reaction effluent system failure control parameter
  • Modeling method for hydrogenation reaction effluent system failure control parameter

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with drawings and embodiments.

[0025] It is known that the DCS control system database of a hydrocracking unit in a petrochemical enterprise includes: the actual value of the raw material feed amount of the hydrogenation reaction effluent system (W f )115.8t / h, circulating hydrogen flow (mX 1 )7151.4k.mol / h, new hydrogen flow (mX 2 )1284.0k.mol / h, the actual water injection volume of hydrogenation reaction effluent (WW′ r ) 10.5t / h, the average temperature (T) at the water injection point of the hydrogenation reaction effluent system is 153°C, and the number of air coolers (m) is 8;

[0026] Hydrogenation reaction effluent system raw material test analysis data include: the content of S in the raw material (F s )1.60%, the H in the circulating hydrogen before desulfurization 2 S content (F' s )3000ppm, the content of N in the raw material (F n )800 ppm, the content of Cl in the raw material (F ...

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Abstract

The invention discloses a modeling method for invalidation control parameter of hydrogenation reaction effluent system; wherein, the invalidation control parameter modeling comprises a KP value, the concentration of NH4HS, the theoretical quantity of water injection, the deposition temperature of NH4HS, the deposition temperature of NH4Cl and the mean velocity of air cooler. The modeling method is characterized in that the operation parameters of hydrogenation reaction effluent system are loaded by the DCS control system data base, the material chemical examination analysis data and the principle flow chart of hydrogenation reaction are combined, the modeling is processed according to the concrete invalidation control parameter in the running of hydrogenation reaction effluent system variable condition, and that the KP value, the concentration of NH4HS, the theoretical quantity of water injection, the deposition temperature of NH4HS, the deposition temperature of NH4Cl and the mean velocity of air cooler are determined. The modeling method for invalidation control parameter of hydrogenation reaction effluent system has the advantages of effective monitor of invalidation control parameter of hydrogenation reaction effluent system for field operators, guarding against unplanned shutdown accident caused by invalidation of hydrogenation reaction effluent system, and long cycle, safety and stable running of hydrogenation reaction effluent system.

Description

technical field [0001] The invention relates to the field of petrochemical industry, in particular to a modeling method for failure control parameters of a hydrogenation reaction effluent system. Background technique [0002] The petrochemical industry is an important foundation of energy, and the petrochemical industry is the pillar industry of our country. In the petrochemical industry, hydrocracking is an important secondary processing method in the refinery, and the hydrocracking air cooler (referred to as REAC) is one of the important equipment in the hydrocracking unit. During use, the cooled The medium is often corrosive to a certain extent, and it is in the high-pressure hydrogen working condition for a long time, which can easily cause local corrosion and perforation, and malignant accidents such as leakage and bursting of pipes. In the past ten years, there have been many vicious accidents at home and abroad in which the corrosion and perforation of REAC led to th...

Claims

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Application Information

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IPC IPC(8): C10G45/72C10G47/36C10G49/26G05B19/418
CPCY02P90/02
Inventor 偶国富郑智剑王艳萍曹海彬金浩哲
Owner ZHEJIANG SCI-TECH UNIV
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