Removals of fly ash and NO in a fluidized-bed reactor with CuO/activated carbon catalysts.
JOURNAL OF HAZARDOUS MATERIALS 2011;
187:190-198. [PMID:
21288639 DOI:
10.1016/j.jhazmat.2011.01.018]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Revised: 12/15/2010] [Accepted: 01/04/2011] [Indexed: 05/30/2023]
Abstract
This study investigates the effects of fly ash compositions (SiO(2) and Al(2)O(3)), particle sizes (4-10 μm and 40 μm), and concentrations on the simultaneous removals of fly ash and NO using a fluidized-bed catalyst reactor. Experimental results show that the removal efficiencies of fly ash and NO at particle concentrations of 968-11,181 mg m(-3) are 71-97% and 42-57%, respectively. SiO(2) particles have more influences than Al(2)O(3) particles on the performances of fluidized-bed CuO/AC catalyst. As the concentration of fine particle increases, the pores and active sites on catalyst surface are obstructed and therefore the activities of catalysts are depressed.
Collapse