Catalytic-cracking energy use analysis method and device

Abstract

The invention provides a catalytic-cracking energy use analysis method and device. The method comprises: establishing an actual energy model of a catalytic-cracking device according to benchmark working condition data and technology data after calibration, and verifying actual energy consumption of the catalytic-cracking device; determining an operation condition of minimum energy consumption which can be realized by the catalytic-cracking device through use of optimized technology and equipment operation data in a case, where a preset product quality requirement is met according to processingquantity and product yield after calibration without changing an existing technology process, carrying out relevant calculation regulation, establishing a theoretical energy model of the catalytic-cracking device, and carrying out simulation calculation on the theoretical energy consumption of the catalytic-cracking device; and mining energy saving potentials of the catalytic-cracking device through difference comparison of the actual energy consumption and the theoretical energy consumption. According to the method, firstly the lowest energy consumption which can be achieved theoretically bythe catalytic-cracking device can be obtained, then the theoretical minimum energy consumption can be compared with the actual energy consumption, and thus mining of the energy saving potentials of the catalytic-cracking device is facilitated.

Description

technical field [0001] The invention relates to the technical field of refinery process energy consumption calculation, in particular to a catalytic cracking energy consumption analysis method and device. Background technique [0002] With the development of large-scale, integrated and complex petrochemical process production equipment, enterprises have also put forward higher and higher requirements for the control and optimization of the production process, especially the demand for energy-saving and emission reduction of production enterprises is increasingly valued. Advanced control strategies represented by predictive control and real-time optimization have been widely used. Advanced control technology can improve the stability rate of production equipment and achieve "card edge" optimization, so as to ensure product quality, increase productivity, reduce energy consumption, reduce accidents and avoid shutdown losses, and the economic benefits are obvious. [0003] Cat...

AI Technical Summary

Problems solved by technology

In the past 10 years, the catalytic cracking technology has undergone major changes, and its operating conditions, raw material properties, product distribution, product standards, etc. Make accurate calculations of energy consumption

In addition, the existing benchmark energy consumption calculation method has made a series of calculation regulations during the calculation, and it is impossible to reasonably calculate the energy consumption according to the individual conditions such as the actual process level and processing plan of each device

With the emergence of various new technologies, existing energy consumption calculation methods cannot completely and accurately reflect changes in new raw materials and new processes

Therefore, it cannot reflect the minimum energy consumption that the device can theoretically achieve, which is not conducive to excavating the energy saving potential of the device

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