Using air separation system to store energy

4 FAQs about [Using air separation system to store energy]

Can air separation system save energy?

Based on the TSI ideas above, energy-saving opportunities are discussed. The air separation system is simulated based on the industrial data by using ASPEN PLUS. According to the simulation results, the actual operating performance and exergy efficiency of major equipment are analyzed. The major problems of this process are discovered.

What is a cryogenic air separation unit (ASU)?

Theory Summary Cryogenic air separation unit (ASU) is a process of high energy consumption. The energy-saving opportunity of ASU has been studied for long. The exergy efficiency and structure packing method are analyzed (Yong et al., 2002). And the heat integration method is reviewed (Smith and Klosek, 2001).

How is a large-scale air separation unit simulated?

The process of a large-scale air separation unit is simulated based on the industrial process and operational parameter of a petrochemical company by using ASPEN PLUS. The actual operating performance is analyzed for the total site. According to the simulation results, exergy efficiency of major equipment is analyzed.

How to solve air separation optimization problem?

The optimization problem can be solved by a new algorithm, which combines genetic algorithm with linear programming. Accordingly a modified air separation process is proposed. The equipment deficiency is overcome in the new process. Also the nitrogen expansion and the structure packing column are added.

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