Sol-gel derived CuO/alumina sorbents for SO{sub 2}/NOx removal from flue gas

Conference · Thu Dec 31 04:00:00 EST 1998

OSTI ID:349167

Lin, Y S; Buelna, G; Wang, Z ^[1]

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1. Univ. of Cincinnati, OH (United States). Dept. of Chemical Engineering

Nanostructured alumina supported copper oxide granular sorbents of 2--3 mm in diameter were prepared by the sol-gel method. The properties of the sol-gel derived sorbents are compared with a similar commercial sorbent which has been used in pilot scale fluidized-bed copper oxide process for flue gas treatment. The sol-gel derived sorbents have surface area of about 300m{sup 2}/g, pore volume of 0.50 and pore diameter of 4 nm. The crushing strength of the sol-gel derived sorbents is about 5 times that of the commercial samples, while the attrition rate of the former is at least 3 times smaller than the latter. Performance of the sol-gel derived alumina supported copper oxide sorbents for SO{sub 2} removal was studied in a fixed-bed adsorption system. At temperatures lower than 400 C, SO{sub 2} sorption capacity of the sol-gel derived sorbent is about 3 times that of the commercial sorbent with a similar amount of CuO loading (7--9 wt.%).

• OSTI ID: 349167
• Report Number(s): CONF-980985--; ISBN 1-890977-15-2
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
54 ENVIRONMENTAL SCIENCES
ADSORBENTS
ADSORPTION
ALUMINIUM OXIDES
COMBINED SOXNOX PROCESSES
COPPER OXIDES
MECHANICAL PROPERTIES
PHYSICAL PROPERTIES
SOL-GEL PROCESS
SORPTIVE PROPERTIES
SULFUR DIOXIDE