Adsorption separation of CO from syngas with CuCl@AC adsorbent by a VPSA process. Issue 69 (26th November 2018)

• Record Type: Journal Article
• Authors: Gao, Fei; Wang, Shougui; Wang, Weiwen; Duan, Jihai; Dong, Jipeng; Chen, Guanghui
• Is Part Of: RSC advances. Volume 8:Issue 69(2018)
• Page Start: 39362
• Page End: 39370
• Publication Date: 2018-11-26
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c8ra08578a
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : High purity CO was obtained from syngas with low CO concentration utilizing CuCl@AC adsorbent by VPSA process at ambient temperature. Abstract : In this work, activated carbon (AC) supported CuCl (CuCl@AC) prepared with CuCl2 as precursor is investigated for CO separation from the synthesis gas mixture. Firstly, the CuCl@AC adsorbents are investigated for their CO reversible adsorption capacity at an operation temperature of 303 K. And a vacuum pressure swing adsorption (VPSA) process of CO separation from syngas utilizing the prepared CuCl@AC adsorbent is investigated at ambient temperature and 0.79 MPa through a dynamic optimization with Aspen Adsorption software. The integrated model is closer to a realistic PSA process, making the results of the simulation and optimization more convincing. The adsorption result reveals that the obtained CuCl@AC adsorbent with the copper loading of 7 mmol g −1 AC achieves a high reversible CO adsorption capacity and adsorption selectivity. The simulation result shows that, under optimal conditions, the CO product with the purity of 98.1 vol% can be separated from the syngas with the CO concentration of 32.3 vol% utilizing the prepared CuCl@AC adsorbent, and the recovery of CO is 92.9%.