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Novel promoting effect of SO2 on the selective catalytic reduction of NOx by ammonia over Co3O4 catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
52488 46875 2007 4 PDF Available
Title
Novel promoting effect of SO2 on the selective catalytic reduction of NOx by ammonia over Co3O4 catalyst
Abstract

Spinel nano-Co3O4 was prepared by solid-state reaction at room temperature and investigated for selective catalytic reduction of NOx by NH3 (NH3-SCR). Although suffering from pore filling and plugging, treatment of this catalyst by SO2 showed novel promoting effect on NH3-SCR above 250 °C. Bulk cobalt sulfate was observed over the sulfated Co3O4 with XRD, which would be an active component for NH3-SCR. The sulphated Co3O4 catalyst exhibited good resistance to SO2 (500 ppm, 100 ppm) and 10% H2O at a space velocity of about 25 000 h−1 at 300 °C, as tested for 12 h.

Keywords
Co3O4; Selective catalytic reduction; Ammonia; SO2 resistance; Cobalt sulfate
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Novel promoting effect of SO2 on the selective catalytic reduction of NOx by ammonia over Co3O4 catalyst
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 12, December 2007, Pages 2096–2099
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
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