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Roles of lattice oxygen in V2O5 and activated coke in SO2 removal over coke-supported V2O5 catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
48266 46498 2008 6 PDF Available
Title
Roles of lattice oxygen in V2O5 and activated coke in SO2 removal over coke-supported V2O5 catalysts
Abstract

This paper systematically investigates the roles of lattice oxygen in V2O5 and activated coke over coke-supported V2O5 catalysts in SO2 removal process at 200 °C. The results show that one SO2 molecule reacts with one O atom in a surface V2O5 molecule to form an intermediate (a VOSO4-like structure), which then reacts with gaseous O2 to form sulfur species (SO3 or H2SO4 in the presence of H2O) and V2O5. The SO3/H2SO4 migrates over the coke surface and stores in the pores in the vicinity of V2O5 sites. Mineral matters, oxygen and nitrogen species in the activated coke are unfavorable to migration of SO3/H2SO4. The pores effective for storage of SO3/H2SO4 are those less than 1 nm in size.

Keywords
V2O5; Pore size distribution; Lattice oxygen; SO2 removal
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Roles of lattice oxygen in V2O5 and activated coke in SO2 removal over coke-supported V2O5 catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 82, Issues 1–2, 16 July 2008, Pages 114–119
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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100% Money Back Guarantee
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