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Optimization method of oil refinery hydrogen system and application thereof

An optimization method and refinery technology, applied in data processing application, prediction, calculation, etc., can solve problems such as limited benefit and simultaneous optimization of light hydrocarbon components in hydrogenation units, etc.

Active Publication Date: 2017-03-08
CHINA PETROLEUM & CHEM CORP +1
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AI Technical Summary

Problems solved by technology

[0005] However, the existing mathematical programming algorithm only considers the recovery of hydrogen in the refinery when optimizing the hydrogen system of the refinery, that is, the setting of the optimized objective function only considers hydrogen, and only monitors and monitors the hydrogen in the hydrogen stream of the refinery. Optimization, without considering the synchronous optimization of the low fraction gas of the hydrogenation unit and the light hydrocarbon components accompanied by hydrogen in the dry gas, so the benefits obtained after optimization are limited

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  • Optimization method of oil refinery hydrogen system and application thereof
  • Optimization method of oil refinery hydrogen system and application thereof
  • Optimization method of oil refinery hydrogen system and application thereof

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Embodiment 1

[0088] After upgrading the quality of oil products in a refinery, the scale of hydrogen consumption is 242562Nm 3 / h, the cost of hydrogen consumption has increased significantly, but the utilization rate is low. The refinery carried out optimization work for the purpose of saving hydrogen consumption, reducing hydrogen cost and increasing comprehensive income.

[0089] Hydrogen systems in refineries (e.g. figure 1 shown) includes a sequentially connected hydrogen supply system, hydrogen consumption system and gas recovery system;

[0090] The hydrogen supply system includes a parallel II hydrogen reforming unit 1, a hydrogen production unit 2 and a PSA unit 3, and the three transport hydrogen to the hydrogen pipeline network through the hydrogen delivery pipeline respectively; the II reforming hydrogen unit 1 also passes the reforming The hydrogen pipeline is connected with the PSA device 3;

[0091] The hydrogen consumption system includes parallel II diesel hydrogenation...

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Abstract

The invention relates to an optimization method of an oil refinery hydrogen system. According to the system provided by the invention, the maximum benefit of the oil refinery hydrogen system is targeted, constraint conditions are optimized, and a new mathematical programming algorithm including light dydrocarbon resource optimization is formed; and compared with the mathematical programming algorithm of an existing hydrogen system, the optimization method is more suitable to actual circumstances, and more benefits can be obtained to meet the requirements of hydrogen conservation and synergy for oil refinery. The invention further provides application of the method in the optimization of the oil refinery hydrogen system, and after the method is optimized, efficient utilization of hydrogen and light dydrocarbon can be realized, so that considerable comprehensive benefit is obtained.

Description

technical field [0001] The invention relates to a method for optimizing hydrogen resources, in particular to a method for optimizing a hydrogen system in an oil refinery. Background technique [0002] In order to meet the requirements of inferior crude oil, product quality upgrade, and clean production, the processing capacity of catalytic hydrogenation units in oil refineries is increasing, and the operating severity is increasing. The demand for hydrogen is increasing. Hydrogen has become the only raw material cost in oil refineries. The second largest cost element after crude oil cost. Adding a hydrogen production device not only has high investment costs and high operating costs, but also consumes energy and pollutes the environment, which does not meet the requirements of energy conservation and environmental protection. Therefore, how to develop low-cost hydrogen to meet production needs and reduce hydrogen costs has become a topic of great concern to refiners. Impro...

Claims

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Application Information

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IPC IPC(8): G06Q10/04
CPCG06Q10/04
Inventor 孟凡忠张英薄德臣张伟
Owner CHINA PETROLEUM & CHEM CORP
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