An effective control method for CO2 capture system operation after photothermal assisted combustion

Abstract

The invention discloses an effective operation control method for a system for CO2 capture after photothermal assisted combustion. A limited object is a trough type system for CO2 capture after photothermal assisted chemisorption combustion with a molten salt energy storage function, an appropriate CO2 capture rate set value in a period of time in the future is estimated fully in accordance with current system energy storage, light intensity forecast and smoke volume forecast, a feedforward feedback control system is designed to implement smooth and fast tracking of the set value, the adaptation of the system for CO2 capture after photothermal assisted combustion to smoke and solar light intensity enhanced, and the operational regulation quality of the system is improved. The simulation results show that according to the method, the operation control of the system for CO2 capture after photothermal assisted combustion can be achieved well under the conditions that the light intensity and smoke flow change.

Description

Technical field [0001] The invention relates to the technical field of thermal process control, in particular to an effective photothermal assisted combustion CO 2 Operation control method of capture system. Background technique [0002] As the greenhouse effect and related climatic and ecological problems become increasingly severe, reducing CO emissions 2 It has become a key measure for the international community to deal with climate change. CO after combustion based on chemical adsorption 2 Capture technology directly separates CO from flue gas produced by fuel combustion 2 , Is a mature carbon capture technology that can be applied in the current chemical, power generation and other industries. [0003] Limit CO after chemisorption combustion 2 The key problem of the large-scale application of capture technology is that the regeneration of chemical solvents during the operation of the decarbonization system requires a large amount of hot steam (such as extraction from the low-...

AI Technical Summary

Problems solved by technology

However, due to photothermal assisted CO 2 The characteristics of the capture system itself are relatively slow, and the intensity of solar light will change within a day, and it has uncertain characteristics due to weather reasons. The flue gas output of production enterprises such as thermal power plants will also change with the load, and its operation control is difficult.

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