The catalytic reaction between carbon monoxide and nitrous oxide over chromium(III) oxide

1979 ◽  
Vol 57 (7) ◽  
pp. 718-722
Author(s):  
Bordan W. Krupay ◽  
Robert A. Ross
Keyword(s):  
Carbon Monoxide ◽  
Nitrous Oxide ◽  
Catalytic Reaction ◽  
Atmospheric Pressure ◽  
Flow System ◽  
Nitrous Oxide Decomposition ◽  
Polymeric Surface ◽  
Oxide Decomposition ◽  
Apparent Activation Energies ◽  
Rate Controlling Step

The catalytic reaction between carbon monoxide and nitrous oxide over chromium(III) oxide has been investigated in a continuous flow system at atmospheric pressure from 525 to 583 K. Two kinetic regions with apparent activation energies of 172 ± 4 kJ mol−1 (525 to 559 K) and 239 ± 4 kJ mol−1 (565 to 583 K) were observed. The rate-controlling step in both regions was associated with the formation of an intermediate carbonate-like species during the consecutive decompositions of two nitrous oxide molecules. In the region of higher apparent activation energy, the presence of polymeric surface chromate groups may influence the reactivity of any carbonate-like intermediate and the subsequent desorption of carbon dioxide thereby leaving a vacant site for nitrous oxide decomposition.

Kinetics of the oxidation of ethane by nitric oxide over manganese(III) oxide

1981 ◽  
Vol 59 (14) ◽  
pp. 2232-2238
Author(s):  
R. A. Ross ◽  
C. Fairbridge
Keyword(s):  
Nitric Oxide ◽  
Carbon Dioxide ◽  
Nitrous Oxide ◽  
Atmospheric Pressure ◽  
Flow System ◽  
Oxide Formation ◽  
Catalyst Structure ◽  
X Ray ◽  
Apparent Activation Energies ◽  
Kinetics Of

The catalytic reaction between ethane and nitric oxide over manganese(III) oxide has been investigated in a continuous flow system from 673 to 573 K at atmospheric pressure. The products of catalysis were nitrogen, carbon dioxide, nitrous oxide, and water. The rate of nitrous oxide formation was constant over this temperature region, while the apparent activation energies for nitrogen and carbon dioxide formation increased from 32 ± 4 and 22 ± 4 kJ mol−1, respectively, at 573 to 613 K, to 78 ± 4 and 63 ± 4 kJ mol−1 between 613 and 673 K. The kinetic results were best described by the rate equation:[Formula: see text]The surface mechanism appears to be complex and has been interpreted by a scheme involving interaction of the reactants in an absorbed layer. Both nitric oxide and ethane are believed to be involved further in subsequent steps. Infrared evidence indicates the possibility of a surface nitrate intermediate consistent with the mechanistic proposal. Scanning electron microscopy and X-ray powder diffraction techniques were used to assess the catalyst structure.

The heterogeneous catalytic reaction between carbon monoxide and nitrous oxide over manganous oxide and cobalto-cobaltic oxide

1978 ◽  
Vol 56 (1) ◽  
pp. 10-16 ◽  
Author(s):  
Bordan Walter Krupay ◽  
Robert Anderson Ross
Keyword(s):  
Carbon Monoxide ◽  
Nitrous Oxide ◽  
Catalytic Reaction ◽  
Surface Reaction ◽  
Heterogeneous Catalytic Reaction ◽  
Heterogeneous Catalytic ◽  
Rate Determining Step ◽  
Cobaltic Oxide ◽  
Intermediate Surface ◽  
Rate Controlling Step

The catalytic reaction between carbon monoxide and nitrous oxide has been studied on MnO from 493 to 573 K and on Co3O4 from 383 to 493 K. The apparent activation energy on MnO was 130 ± 4 kJ mol−1, while for Co3O4, a change from 31 ± 4 to 105 ± 4 kJ mol−1 was observed at 450 K. The rate-controlling step for the catalytic reaction on MnO was associated with the surface reaction between carbon monoxide and nitrous oxide in a manner similar to that previously reported for NiO, while for Co3O4, the rate-determining step was related to the formation of an intermediate surface carbonate. The changes in EA may be a consequence of the surface reaction proceeding via a concerted redox reaction in the low temperature region and then to a stepwise mechanism at higher temperatures resulting from the presence of structurally and energetically different forms of the intermediate surface carbonate.

Role of rubidium promotion on the nitrous oxide decomposition activity of nanocrystalline Co3O4-CeO2 catalyst

2019 ◽  
Vol 479 ◽  
pp. 148-157 ◽  
Author(s):  
Bahaa M. Abu-Zied ◽  
Soliman A. Soliman ◽  
Abdullah M. Asiri
Keyword(s):  
Nitrous Oxide ◽  
Nitrous Oxide Decomposition ◽  
Oxide Decomposition

Effect of the preparation technique of Cu-ZSM-5 catalysts on the isothermal oscillatory behavior of nitrous oxide decomposition

2020 ◽  
Vol 345 ◽  
pp. 59-70
Author(s):  
Marco Armandi ◽  
Tahrizi Andana ◽  
Samir Bensaid ◽  
Marco Piumetti ◽  
Barbara Bonelli ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Oscillatory Behavior ◽  
Preparation Technique ◽  
Nitrous Oxide Decomposition ◽  
Oxide Decomposition

Nitrous Oxide Decomposition Using Inductively Heated Heat Exchangers

2020 ◽  
Vol 36 (6) ◽  
pp. 887-900
Author(s):  
Pratik S. Saripalli ◽  
Raymond J. Sedwick
Keyword(s):  
Nitrous Oxide ◽  
Heat Exchangers ◽  
Nitrous Oxide Decomposition ◽  
Oxide Decomposition

Nitrous oxide decomposition and low temperature parahydrogen enrichment on pure and doped rutile

1970 ◽  
Vol 66 ◽  
pp. 1773 ◽  
Author(s):  
P. C. Richardson ◽  
R. Rudham ◽  
W. Twist ◽  
K. P. Wagstaff
Keyword(s):  
Nitrous Oxide ◽  
Low Temperature ◽  
Nitrous Oxide Decomposition ◽  
Oxide Decomposition

Nitrous oxide decomposition in a real nitric acid plant gas stream with a RhOx/Ce0.9Pr0.1O2/alumina catalyst

2013 ◽  
Vol 88 (12) ◽  
pp. 2233-2238 ◽  
Author(s):  
Marek Inger ◽  
Marcin Wilk ◽  
Sonia Parres-Esclapez ◽  
Maria José Illán-Gómez ◽  
Concepción Salinas-Martínez de Lecea ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Nitric Acid ◽  
Acid Plant ◽  
Alumina Catalyst ◽  
Nitrous Oxide Decomposition ◽  
Oxide Decomposition

Alkali-metal promoted rhodium-on-alumina catalysts for nitrous oxide decomposition

2008 ◽  
Vol 77 (3-4) ◽  
pp. 278-283 ◽  
Author(s):  
Jerzy Haber ◽  
Małgorzata Nattich ◽  
Tadeusz Machej
Keyword(s):  
Nitrous Oxide ◽  
Alkali Metal ◽  
Nitrous Oxide Decomposition ◽  
Oxide Decomposition ◽  
Alumina Catalysts
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