A refinery process energy consumption analysis method and device

Abstract

The invention provides a refinery process energy consumption analysis method and device. The method includes: establishing an actual energy model of a residual oil hydrogenation device based on the calibrated benchmark working condition data and process data, and analyzing the actual energy 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 residual oil hydrogenation unit The lowest achievable operating conditions of energy consumption, carry out relevant calculation regulations, establish the theoretical energy model of the residual oil hydrogenation unit and simulate and calculate the theoretical energy consumption of the residual oil hydrogenation unit; excavate the slag by comparing the difference between the actual energy consumption and the theoretical energy consumption Energy saving potential of oil hydrogenation unit. The present invention can firstly obtain the theoretical minimum energy consumption of the residual oil hydrogenation device, and then compare the theoretically achievable minimum energy consumption with the actual energy consumption, thereby helping to tap the energy-saving potential of the residual oil hydrogenation device .

Description

technical field [0001] The invention relates to the technical field of refinery process energy consumption calculation, in particular to a refinery process energy consumption analysis method and device. Background technique [0002] In recent years, under the competitive pressure of deteriorating crude oil properties, increasing demand for light oil products, and stricter fuel oil and environmental protection standards, oil refineries process an increasing proportion of heavy crude oil and high-sulfur crude oil, and produce low-sulfur, super Low-sulfur clean fuel technology is developing rapidly. Residual oil hydrogenation technology can greatly increase the yield of light oil and reduce SO x and carbon emissions, in line with the requirements of building a resource-saving and environment-friendly new oil refinery, has received extensive attention from oil refiners. [0003] Residual oil hydrogenation technology is a process technology in which hydrogen gas and residual oi...

AI Technical Summary

Problems solved by technology

[0005] The existing methods for calculating the energy consumption of residual oil hydrogenation all use empirical correlation or statistical methods, which cannot make accurate calculations for the energy consumption of residual oil hydrogenation units

In addition, it is impossible to reasonably calculate energy consumption based on individual conditions such as the actual process level and processing plan of each device; it cannot fully 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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