Indexed by:
期刊论文
First Author:
Zhao, Ling
Correspondence Author:
Li, XY (reprint author), Dalian Univ Technol, Sch Environm Sci & Technol, Key Lab Ind Ecol & Environm Engn, Dalian 116024, Peoples R China.
Co-author:
Li, Xinyong,Qu, Zhenping,Zhao, Qidong,Liu, Shaomin,Hu, Xijun
Date of Publication:
2011-07-29
Journal:
SEPARATION AND PURIFICATION TECHNOLOGY
Included Journals:
SCIE、EI
Document Type:
J
Volume:
80
Issue:
2
Page Number:
345-350
ISSN No.:
1383-5866
Key Words:
SO2 removal; NiAl mixed oxides; Adsorption
Abstract:
A series of NiAl mixed oxides derived from hydrotalcite-like compounds were prepared by a urea hydrolysis method, and characterized by TGA, XRD, SEM, CO2-TPD, N-2 adsorption/desorption and XPS techniques. The SO2 adsorption capacity of the materials correlated closely with their basicity and active oxygen species on the surface, as estimated by a volumetric method. The NiAl mixed oxide with the optimal Ni/Al molar ratio of 3 showed the best performance of SO2 adsorption. Moreover, its adsorption equilibrium of a type I isotherm and pore opening in the quasi-micropore region significantly improve the adsorption performance for low-concentration SO2. (C) 2011 Elsevier B.V. All rights reserved.
Translation or Not:
no
