CO2 Capture Performance of Calcium‐Based Sorbents in the Presence of SO2 under Pressurized Carbonation. Issue 6 (26th April 2016)

• Record Type: Journal Article
• Authors: Chen, Huicho; Zhao, Changsui
• Is Part Of: Chemical engineering & technology. Volume 39:Issue 6(2016:Jun.)
• Page Start: 1058
• Page End: 1066
• Publication Date: 2016-04-26
• Subjects: Calcium‐based sorbent -- CO2 capture -- Pressurized carbonation -- SO2 uptake; Chemical engineering -- Periodicals; Chemical processes -- Periodicals; 660.05
• DOI: 10.1002/ceat.201500465
• Languages: English
• ISSNs: 0930-7516

Abstract

Abstract: In order to understand the effect of SO2 on the CO2 capture performance under pressurized carbonation conditions, tests by orthogonal design were carried out in a calcination/pressurized carbonation reactor system. The effects of variables such as carbonation temperature, carbonation pressure, SO2 concentration, CO2 concentration, and the number of cycles on carbonation and sulfation were investigated. A range method was employed for analysis. Phase structure and scanning electron microscopy images were measured as supplement for a reaction study. Temperature increase enhanced the SO2 capture, leading to a rapid decay in CO2 uptake. The carbonation pressure had a stronger effect on the CO2 uptake than the temperature. SO2 uptake increased rapidly with increasing pressure while CO2 uptake decreased. Abstract : Orthogonal design tests were carried out in a calcination/pressurized carbonation reactor system to understand the effects of SO2 on CO2 capture, employing a range method for analysis. Phase structure and scanning electron microscopy images were used as supplement for a reaction study. An optimal parameter combination was found that achieves high CO2 capture performance for the tested sorbents.