CO2 Adsorption under Dynamic Conditions: An Overview on Rice Husk-Derived Sorbents and Other Materials. Issue 9 (2nd September 2019)

• Record Type: Journal Article
• Authors: Gargiulo, V.; Alfè, M.; Raganati, F.; Zhumagaliyeva, A.; Doszhanov, Y.; Ammendola, P.; Chirone, R.
• Is Part Of: Combustion science and technology. Volume 191:Issue 9(2019)
• Page Start: 1484
• Page End: 1498
• Publication Date: 2019-09-02
• Subjects: CO2 adsorption -- solid sorbents -- dynamic conditions -- carbonized rice husk -- lab-scale fixed-bed reactor -- post-combustion CO2 capture; Combustion -- Periodicals; Combustion engineering -- Periodicals; 541.36105
• DOI: 10.1080/00102202.2018.1546697
• Languages: English
• ISSNs: 0010-2202

Abstract

ABSTRACT: CO2 adsorption on solid sorbents under dynamic conditions is driven by a number of factors, among them textural features (pore volumes, pore size distribution, surface area…), surface chemistry (polarity, presence of active site and/or unsaturated coordinative sites…) and the overall active sites accessibility. Depending on the strength of the interaction with CO2 (chemisorption or physisorption), solid sorbents are broadly divided in two groups, although a sharp distinction between the two phenomena (in many cases concurrent) is obviously not possible. CO2 adsorption data acquired in a lab-scale fixed bed reactor under dynamic conditions and in typical conditions of post-combustion CO2 capture on materials produced from the work-up of carbonized rice husk were here reported and compared with pertinent literature on commercial and ad-hoc synthetized sorbents. Some attempts to correlate adsorption capacities and materials' textural properties or other relevant adsorption parameters have been also proposed.