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An optimization method and application of a refinery hydrogen system

An optimization method and refinery technology, applied in data processing application, prediction, calculation, etc., can solve the problems of limited benefit, without consideration of synchronous optimization of light hydrocarbon components in hydrogenation units, etc.

Active Publication Date: 2019-04-12
CHINA PETROLEUM & CHEM CORP +1
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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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  • An optimization method and application of a refinery hydrogen system
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  • An optimization method and application of a refinery hydrogen system

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Embodiment 1

[0088] After upgrading the oil quality of an oil refinery, the hydrogen consumption scale is 242562Nm 3 / h, the cost of using hydrogen is greatly increased, 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 hydrogen supply system, a hydrogen consumption system and a gas recovery system connected in sequence;

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

[0091] The hydrogen consumption system includes parallel II diesel hydrogenation unit 4, III diesel hydrogenation unit 5,...

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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 a refinery. Background technique [0002] In order to meet the requirements of crude oil deterioration, product quality upgrading, and cleaner production, the processing capacity of the catalytic hydrogenation unit of the refinery has been increasing, and the operation severity has increased. The demand for hydrogen is increasing. Hydrogen has become the only raw material cost in the refinery. The second most important cost factor after the cost of crude oil. The addition of 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 c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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