Dual-catalyst system to broaden the window of operability in the reduction of NO/sub chi/ with ammonia

Journal Article · Tue Aug 01 00:00:00 EDT 1989 · IEEE Transactions on Energy Conversion; (USA)

OSTI ID:5332326

Medros, F G ^[1]; Eldridge, J W ^[2]; Kittrell, J R ^[3]

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1. Thermedics, Inc., Woburn, MA (US)
2. Massachusetts Univ., Amherst, MA (USA). Dept. of Chemical Engineering
3. KSE, Inc., Amherst, MA (US)

The objective of the research discussed in this paper was to determine if a dual-catalyst system for NO reduction with NH/sub 3/ can achieve a given percent NO reduction over a wider range of temperatures and space velocities than either catalyst used alone in the same total reactor volume. Hydrogen mordenite (20/32 mesh) and copper-ion-exchanged hydrogen mordenite (2.2% Cu) were used in series at temperatures from 200 to 600 {sup 0}C and space velocities from 1000000 to 450000 h/sup -1/ (STP). The superiority of the dual-catalyst system was demonstrated experimentally, and a model was developed which predicted its performance very well from data on the individual catalysts. A technique was then developed for predicting quantitatively the dual-catalyst enhancement of the space velocity versus temperature window for achieving a given percent NO conversion.

• OSTI ID: 5332326
• Journal Information: IEEE Transactions on Energy Conversion; (USA), Vol. 28:8; ISSN 0885-8969
• Country of Publication: United States
• Language: English

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10 SYNTHETIC FUELS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
CATALYSTS
PERFORMANCE
NITROGEN OXIDES
CATALYTIC CONVERTERS
AMMONIA
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
COPPER
EXPERIMENTAL DATA
ION EXCHANGE
MATHEMATICAL MODELS
MORDENITE
RESEARCH PROGRAMS
CHALCOGENIDES
DATA
ELEMENTS
EQUIPMENT
HYDRIDES
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
KINETICS
MATERIALS
METALS
MINERALS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL EQUIPMENT
REACTION KINETICS
SILICATE MINERALS
TRANSITION ELEMENTS
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100300 - Synthetic Fuels- Properties & Composition- (1990-)
400201 - Chemical & Physicochemical Properties
990200 - Mathematics & Computers