title: Adhesive carrier particles for rapidly hydrated sorbent for moderate-temperature dry flue gas desulfurization.
abstract: A rapidly hydrated sorbent for moderate-temperature dry flue gas desulfurization was prepared by rapidly hydrating adhesive carrier particles and lime. The circulation ash from a circulating fluidized bed boiler and chain boiler ash, both of which have rough surfaces with large specific surface areas and specific pore volumes, can improve the adhesion, abrasion resistance, and desulfurization characteristics of rapidly hydrated sorbent when used as the adhesive carrier particles. The adhesion ability of sorbent made from circulation ash is 67.4% higher than that of the existing rapidly hydrated sorbent made from fly ash, the abrasion ratio is 76.2% lower, and desulfurization ability is 14.1% higher. For sorbent made from chain boiler ash, the adhesion ability is increased by 74.7%, the desulfurization ability is increased by 30.3%, and abrasion ratio is decreased by 52.4%. The abrasion ratios of the sorbent made from circulation ash having various average diameters were all about 9%, and their desulfurization abilities were similar (approximately 150 mg/g).
authors.affiliation: Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Thermal Engineering, Tsinghua University, Beijing100084, China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Li
authors.forename: Changfu
authors.initials: C
authors.lastname: You
authors.forename: Chenxing
authors.initials: C
authors.lastname: Song
mesh_terms: D000268:Adhesiveness; D000327:Adsorption; D002244:Carbon / Q000737:chemistry; D060729:Coal Ash; D005740:Gases / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D010316:Particle Size; D052638:Particulate Matter / Q000737:chemistry*; D016062:Porosity; D013455:Sulfur / Q000302:isolation & purification*; D013499:Surface Properties; D013696:Temperature; D014867:Water / Q000737:chemistry*
chemical_list: D060729:Coal Ash; D005740:Gases; D052638:Particulate Matter; D014867:Water; D013455:Sulfur; D002244:Carbon