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

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.

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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Problems solved by technology

[0005] The embodiment of the present invention provides a real-time prediction method and device for the reaction depth of a hydrocracking unit, which is used to solve the problem in the prior art that it is difficult to realize the refined control of quenching hydrogen injection due to the lack of information on the operating status of the cracking section of the hydrocracking unit , and then provide reference information for protecting catalyst activity and flexibly adjusting the output of each side line product in the fractionation system

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