A hydrocracking energy analysis method and device

Abstract

The present invention provides a hydrocracking energy consumption analysis method and device. The method includes: establishing the actual energy model of the hydrocracking unit according to the calibrated benchmark working condition data and process data, and analyzing the actual energy consumption of the hydrocracking unit. Approval; do not change the existing process flow, according to the calibrated processing capacity and product yield, in the case of meeting the preset quality requirements of the product, by adopting the optimized process and equipment operation data, determine the achievable performance of the hydrocracking unit The operating conditions of the lowest energy consumption, carry out relevant calculation regulations, establish the theoretical energy model of the hydrocracking unit and simulate the theoretical energy consumption of the hydrocracking unit; tap the energy saving of the hydrocracking unit by comparing the difference between the actual energy consumption and the theoretical energy consumption potential. The present invention can firstly obtain the theoretically attainable minimum energy consumption of the hydrocracking unit, and then compare the theoretically attainable minimum energy consumption with the actual energy consumption, thereby helping to tap the energy-saving potential of the hydrocracking unit.

Description

technical field [0001] The invention relates to the technical field of energy consumption calculation of refinery process, in particular to a hydrocracking 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] The h...

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Problems solved by technology

[0005] The existing hydrocracking 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 set of equipment

Over the past 10 years, with the emergence of various new technologies, major changes have taken place in hydrocracking technology, and its operating conditions, raw material properties, product distribution, product standards, etc. have all undergone major changes. The energy consumption calculation method cannot completely and accurately reflect the changes in new raw materials and new processes, so it cannot reflect the minimum energy consumption that the device can theoretically achieve, which is not conducive to tapping the energy-saving potential of the device

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