A method and device for analyzing energy consumption of atmospheric and vacuum distillation

Abstract

The invention provides a method and device for analyzing energy consumption of atmospheric and vacuum distillation. The method includes: establishing an actual energy model of the atmospheric and vacuum distillation device according to the calibrated benchmark working condition data and process data, and analyzing the actual energy consumption of the atmospheric and vacuum distillation device. The energy consumption is verified; without changing 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 atmospheric and vacuum distillation The operating conditions of the lowest energy consumption that the device can achieve, carry out relevant calculation regulations, establish the theoretical energy model of the atmospheric and vacuum distillation device and simulate and calculate the theoretical energy consumption of the atmospheric and vacuum distillation device; by comparing the difference between the actual energy consumption and the theoretical energy consumption, mining Energy saving potential of atmospheric and vacuum distillation units. The present invention can firstly obtain the theoretically attainable minimum energy consumption of the atmospheric and vacuum distillation device, and then compare the theoretically attainable minimum energy consumption with the actual energy consumption, thereby helping to tap the energy-saving potential of the atmospheric and vacuum distillation device .

Description

technical field [0001] The invention relates to the technical field of energy consumption calculation of refinery processes, in particular to a method and device for analyzing energy consumption of atmospheric and vacuum distillation. Background technique [0002] With the development of large-scale, integrated and complex petrochemical process production devices, enterprises have also put forward higher and higher requirements for the control and optimization of production processes, especially the energy conservation and emission reduction needs of production enterprises have been paid more and more attention. Advanced control strategies represented by predictive control and real-time optimization have been widely used. The advanced control technology can improve the stability rate of the production device and achieve the optimization of "jamming", thereby ensuring product quality, improving productivity, reducing energy consumption, reducing accidents and avoiding shutdow...

AI Technical Summary

Problems solved by technology

In the past 10 years, the atmospheric and vacuum distillation technology has undergone major changes, and its operating conditions, raw material properties, product distribution, product standards, etc. have all undergone major changes, which makes the existing empirical correlation formula unable to apply Accurate calculation of energy consumption of vacuum distillation unit

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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