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Title: Selective catalytic reduction of nitric oxide by ammonia over V{sub 2}O{sub 5}/TiO{sub 2}, V{sub 2}O{sub 5}/TiO{sub 2}/SiO{sub 2}, and V{sub 2}O{sub 5}-WO{sub 3}/TiO{sub 2} catalysts: Effect of vanadia content on the activation energy

Abstract

A systematic variation of the V{sub 2}O{sub 5} content of the title catalysts reveals a dependence of the activation energy of the selective catalytic reduction of nitric oxide by ammonia on the surface concentration of vanadia. A significant decrease in activation energy (from approximately 80 to 40 kJ/mol) is observed, as the vanadia surface concentration is increased (from 0.3 to 8 {micro}mol/m{sup 2}). The same results were obtained from tests conducted both in the presence and absence of H{sub 2}O and SO{sub 2}. A possible mechanistic explanation is discussed.

Authors:
 [1];  [2]
  1. Univ. of South Carolina, Columbia, SC (United States). Dept. of Chemical Engineering
  2. W.R. Grace and Co.-Conn., Columbia, MD (United States). Research Div.
Publication Date:
OSTI Identifier:
225475
Resource Type:
Journal Article
Journal Name:
Industrial and Engineering Chemistry Research
Additional Journal Information:
Journal Volume: 35; Journal Issue: 3; Other Information: PBD: Mar 1996
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 01 COAL, LIGNITE, AND PEAT; 20 FOSSIL-FUELED POWER PLANTS; NITRIC OXIDE; SELECTIVE CATALYTIC REDUCTION; CATALYSTS; CHEMICAL COMPOSITION; ACTIVATION ENERGY; VANADIUM OXIDES; TITANIUM OXIDES; SILICON OXIDES; TUNGSTEN OXIDES; CONCENTRATION RATIO; CHEMICAL REACTION KINETICS; WATER VAPOR; SULFUR DIOXIDE; AMMONIA

Citation Formats

Amiridis, M.D., and Solar, J.P. Selective catalytic reduction of nitric oxide by ammonia over V{sub 2}O{sub 5}/TiO{sub 2}, V{sub 2}O{sub 5}/TiO{sub 2}/SiO{sub 2}, and V{sub 2}O{sub 5}-WO{sub 3}/TiO{sub 2} catalysts: Effect of vanadia content on the activation energy. United States: N. p., 1996. Web. doi:10.1021/ie950452y.
Amiridis, M.D., & Solar, J.P. Selective catalytic reduction of nitric oxide by ammonia over V{sub 2}O{sub 5}/TiO{sub 2}, V{sub 2}O{sub 5}/TiO{sub 2}/SiO{sub 2}, and V{sub 2}O{sub 5}-WO{sub 3}/TiO{sub 2} catalysts: Effect of vanadia content on the activation energy. United States. doi:10.1021/ie950452y.
Amiridis, M.D., and Solar, J.P. Fri . "Selective catalytic reduction of nitric oxide by ammonia over V{sub 2}O{sub 5}/TiO{sub 2}, V{sub 2}O{sub 5}/TiO{sub 2}/SiO{sub 2}, and V{sub 2}O{sub 5}-WO{sub 3}/TiO{sub 2} catalysts: Effect of vanadia content on the activation energy". United States. doi:10.1021/ie950452y.
@article{osti_225475,
title = {Selective catalytic reduction of nitric oxide by ammonia over V{sub 2}O{sub 5}/TiO{sub 2}, V{sub 2}O{sub 5}/TiO{sub 2}/SiO{sub 2}, and V{sub 2}O{sub 5}-WO{sub 3}/TiO{sub 2} catalysts: Effect of vanadia content on the activation energy},
author = {Amiridis, M.D. and Solar, J.P.},
abstractNote = {A systematic variation of the V{sub 2}O{sub 5} content of the title catalysts reveals a dependence of the activation energy of the selective catalytic reduction of nitric oxide by ammonia on the surface concentration of vanadia. A significant decrease in activation energy (from approximately 80 to 40 kJ/mol) is observed, as the vanadia surface concentration is increased (from 0.3 to 8 {micro}mol/m{sup 2}). The same results were obtained from tests conducted both in the presence and absence of H{sub 2}O and SO{sub 2}. A possible mechanistic explanation is discussed.},
doi = {10.1021/ie950452y},
journal = {Industrial and Engineering Chemistry Research},
number = 3,
volume = 35,
place = {United States},
year = {1996},
month = {3}
}