Method and device for real-time prediction of reaction depth of hydrocracker

A technology of hydrocracking and reaction depth, which is applied in the field of data processing, can solve the problems of difficulty in realizing the fine control of quenching hydrogen injection amount, lack of it, etc., and achieve the effects of avoiding non-convergence problems, fast training, and reducing training burden

CN106281431AActive Publication Date: 2017-01-04CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-01-04

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Abstract

The invention provides a method and device for real-time prediction of the reaction depth of a hydrocracker. The method comprises the steps of establishing steady-state datasets for different working conditions, wherein operation datasets corresponding to different steady-state working conditions are screened out from historical datasets with the similarity measurement method, and the operation datasets are stored in a classified mode according to device operation phases and mixed feeding oil properties; conducting neural network optimal training sample set optimization, wherein based on the feeding oil properties under the current working condition, an optimal training sample is selected from the steady-state working condition operation datasets of the hydrocracker according to the similarity of mixing indexes to achieve fast training of a neural network; conducting real-time prediction of the reaction depth. By the adoption of the method and device, the reaction depth of the hydrocracker is predicted under the current operation phase, the current feed properties and the current operation condition, real-time state information is provided for optimal control of the injection volume of quenching hydrogen in the process, and a basis is provided for protecting the activity of a catalyst, prolonging the on-stream time of the hydrocracker and realizing flexible adjustment of processing amount of a target product.
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Description

technical field

[0001] The invention relates to the technical field of data processing, in particular to a method and device for real-time prediction of reaction depth of a hydrocracking unit. Background technique

[0002] The oil refining industry is the pillar of the national economy, and its gross production value accounts for about one-third of the national economy. With the rapid development of the economy, China's demand for and dependence on energy is increasing day by day. Guaranteeing the supply of oil products has now become a national economy. core of security strategy. Especially after entering the 21st century, the worldwide environmental problems are frequent, and the voice of human beings for clean energy and environmental protection is constantly increasing. Therefore, the hydrogenation technology that can effectively improve the quality of oil products and produce low-sulfur fuel oil is becoming more and more popular in the world. countries' attention. Hyd...

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Embodiment Construction

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0050] The reaction depth in the embodiment of the present invention refers to the weighted sum calculated from various target product components at the outlet of the cracking reactor according to a certain specific gravity in a specific operation stage, specific feed oil properties, and specific operating conditions. The change of the target prod...