期刊
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
卷 51, 期 -, 页码 56-70出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijggc.2016.04.015
关键词
Carbon dioxide; Hydrogen production; Carbon capture; Methanol; Fuel; Energy; Efficiency
类别
资金
- Natural Sciences and Engineering Research Council of Canada
An integrated system for converting carbon dioxide to methanol is proposed, and four of its main components (carbon capture absorber, carbon capture stripper, photoreactor, and methanol synthesis reactor) are analyzed thermodynamically, focusing on exergy destruction. The carbon capture unit provides carbon dioxide extracted from industrial flue gas while the photocatalysis unit produces hydrogen from visible light via photocatalytic water splitting. Both, carbon dioxide and hydrogen are supplied to a methanol synthesis reactor at a specific feed rate, temperature and pressure. The thermodynamic analysis shows that the largest exergy destruction rate occurs in the photoreactor (706 kW). The second largest exergy destruction rate occurs in the methanol synthesis reactor (24.7 kW), while the exergy destruction rates are smaller in the carbon capture stripper (23.5 kW) and absorber (17.9 kW). (C) 2016 Elsevier Ltd. All rights reserved.
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