Volume 41, Issue 8 pp. 1639-1648
Research Article

Analysis of CO2 Emission and Economic Feasibility for a Heat-Integrated Air Separation System

Lin Cong

Corresponding Author

Lin Cong

China University of Petroleum (East China), College of Information and Control Engineering, 66# Changjiang West Road, 266580 Qingdao, China

Correspondence: Lin Cong ([email protected]), China University of Petroleum (East China), College of Information and Control Engineering, 66# Changjiang West Road, 266580 Qingdao, China.Search for more papers by this author
Liang Chang

Liang Chang

Zhejiang University, Institute of Industrial Process Control, Department of Control Science and Engineering, 38# Zheda Road, 310027 Hangzhou, China

Search for more papers by this author
Xinggao Liu

Xinggao Liu

Zhejiang University, Institute of Industrial Process Control, Department of Control Science and Engineering, 38# Zheda Road, 310027 Hangzhou, China

Search for more papers by this author
Xiaogang Deng

Xiaogang Deng

China University of Petroleum (East China), College of Information and Control Engineering, 66# Changjiang West Road, 266580 Qingdao, China

Search for more papers by this author
Honglong Chen

Honglong Chen

China University of Petroleum (East China), College of Information and Control Engineering, 66# Changjiang West Road, 266580 Qingdao, China

Search for more papers by this author
First published: 23 May 2018
Citations: 11

Abstract

Cryogenic air separation is a high-energy consumption process and contributes significantly to greenhouse gas emissions. Reduction potentials of the CO2 emissions for both the full-tower heat-integrated air separation columns (F-HIASC) and the top-tower heat-integrated air separation columns (T-HIASC) are investigated. The optimization models of the minimum CO2 emissions are further proposed. The unit CO2 emissions of F-HIASC and T-HIASC can be decreased significantly compared to the conventional air separation columns (CASC). Furthermore, the capital cost and total annual cost are analyzed so as to evaluate properly the economic feasibility of HIASC. The results demonstrate that the total annual costs of F-HIASC and T-HIASC are much lower than that of CASC.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.