Mathematic Model of the Rectifying Process of an Air Separation Unit

ZHANG Yanping; WANG Li; GAO Yuan; WANG Weimin

doi:10.13374/j.issn1001-053x.2003.05.048

Volume 25 Issue 5

Aug. 2021

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ZHANG Yanping, WANG Li, GAO Yuan, WANG Weimin. Mathematic Model of the Rectifying Process of an Air Separation Unit[J]. Chinese Journal of Engineering, 2003, 25(5): 473-476. doi: 10.13374/j.issn1001-053x.2003.05.048

Citation:

ZHANG Yanping, WANG Li, GAO Yuan, WANG Weimin. Mathematic Model of the Rectifying Process of an Air Separation Unit[J]. Chinese Journal of Engineering, 2003, 25(5): 473-476. doi: 10.13374/j.issn1001-053x.2003.05.048

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Mathematic Model of the Rectifying Process of an Air Separation Unit

doi: 10.13374/j.issn1001-053x.2003.05.048

1. Mechanical Engineering School, University of Science and Technology Beijing China;
2. Shanghai BaoSteel Group Co, China

Received Date: 2002-12-20
Available Online: 2021-08-17

Abstract

Abstract

A consolidated mathematical model and its computing method for a universal modeling column were proposed with Harmens state equation and the gas-liquid equilibrium theory of O₂-Ar-N₂ mixture. Based on them, a calculating model of an air separation unit (ASU) system was developed and the rectifying process was analyzed. The result of an application to No.5 ASU in BaoSteel made in APCI shows that the model and the computing method can accurately forecast the variation of operating parameters of ASU in the rectifying process.
- air separation,
- rectifying,
- mathematical model