Experimental carbonation of CaO in an entrained flow reactor. Issue 5 (4th March 2019)

• Record Type: Journal Article
• Authors: Plou, Jorge; Martínez, Isabel; Grasa, Gemma S.; Murillo, Ramón
• Is Part Of: Reaction chemistry & engineering. Volume 4:Issue 5(2019)
• Page Start: 899
• Page End: 908
• Publication Date: 2019-03-04
• Subjects: Reaction mechanisms (Chemistry) -- Periodicals; Chemical engineering -- Periodicals; Chemical engineering; Reaction mechanisms (Chemistry); Periodicals; 547.705
• DOI: 10.1039/c9re00015a
• Languages: English
• ISSNs: 2058-9883

Abstract

Abstract : Performance of different CaO-based materials for full decarbonisation of gas streams in an entrained flow reactor as part of the calcium-looping process. Abstract : In this work, the feasibility of an entrained flow reactor for full decarbonisation of gas streams has been proved. Three CaO-based materials (two types of lime and calcined raw meal) with different textural properties and therefore, different CO2 carrying capacities have been fed to the entrained flow reactor in a series of tests in which the Ca/CO2 molar ratio and solid residence time were the operation variables studied. Up to 11 mol CO2 m −2 s −1 has been captured from the gas phase with CaO from calcined lime with a maximum CO2 carrying capacity of 0.57 mol CO2 per mol CaO, reaching CO2 capture efficiencies over 90% for a Ca/CO2 molar ratio of 5 and solid residence times under 5 s.