Catalysis Under Transient Conditions

Title Page......Page 1
Half Title Page......Page 3
Copyright......Page 4
ACS Symposium Series......Page 5
FOREWORD......Page 6
PdftkEmptyString......Page 0
PREFACE......Page 7
1 Understanding Heterogeneous Catalysis Through the Transient Method......Page 8
Some Experimental Methods......Page 9
Modes of Operation......Page 16
The Oxidation of Carbon Monoxide on Platinum......Page 25
The Reaction of Hydrogen and Carbon Monoxide over Iron......Page 31
Literature Cited......Page 36
2 Transient Low-Pressure Studies of Catalytic Carbon Monoxide Oxidation......Page 40
Transients Induced by Temperature Changes......Page 41
Transients Induced by Pressure Changes......Page 48
Acknowledgement......Page 63
Literature Cited......Page 64
3 The Dynamic Behavior of Three-Way Automotive Catalysts......Page 66
Time-Averaged Conversion Measurements......Page 67
Dynamic Gas-Phase Measurements......Page 69
Measurement of Catalyst Oxygen Content......Page 79
Future Studies......Page 81
Literature Cited......Page 84
4 Dynamics of High-Temperature Carbon Monoxide Chemisorption on Platinum-Alumina by Fast-Response IR Spectroscopy......Page 86
Fast-Response Infrared Reactor System......Page 87
Theory of Transient, Diffusion-Coupled CO Chemisorption......Page 91
Results and Discussion......Page 98
Concluding Remarks......Page 104
Nomenclature......Page 106
Greek Letters......Page 107
Literature Cited......Page 108
5 Nitric Oxide Reduction by Hydrogen over Rhodium Using Transient Response Techniques......Page 111
Experimental......Page 112
Results......Page 115
Discussion......Page 122
Nomenclature......Page 145
Literature Cited......Page 146
Introduction......Page 148
Experimental......Page 149
NO, CO And HC Conversions......Page 151
Sulfur Dioxide and Propane Oxidation......Page 154
Temperature Programmed Reduction (TPR)......Page 157
Infrared (IR) Study......Page 162
Conclusion......Page 164
Practical Considerations......Page 165
Literature Cited......Page 166
7 Decomposition of Nitrous Oxide on Magnesium Oxide Compared to That on Cupric Oxide......Page 168
Experimental......Page 169
Results......Page 170
Discussion......Page 180
Literature Cited......Page 184
8 Transient and Steady-State Vapor Phase Electrocatalytic Ethylene Epoxidation Voltage, Electrode Surface Area, and Temperature Effects......Page 185
Experimental Methods......Page 188
Results......Page 189
Discussion......Page 203
Conclusions......Page 208
List of symbols......Page 209
Literature Cited......Page 211
9 Characterization of the Adsorbed Layer of a Silver Catalyst in the Oxidation of Ethylene from Its Transient Adsorption Behavior......Page 213
Experimental Method......Page 215
Transient Behavior of Oxygen......Page 216
Adsorption Behavior of C2H4......Page 224
Transient Behavior of CO2......Page 231
Literature Cited......Page 241
10 Development of a Pulse Reactor with On-Line MS Analysis to Study the Oxidation of Methanol......Page 242
Methanol Oxidation......Page 244
Experimental......Page 245
Results and Discussion......Page 247
Literature Cited......Page 254
11 Square Concentration Pulses in Oxidation Catalysis over Perovskite-type Oxides of Manganese and Iron......Page 255
Micro Flow Unit and Square Pulse Unit......Page 257
Results......Page 259
Discussion......Page 262
Literature Cited......Page 267
Abstract......Page 269
Results and Discussion......Page 271
Acknowledgements......Page 276
Literature Cited......Page 277
Abstract......Page 278
Basic equations......Page 280
Propagation speed......Page 282
Application of wavefront analysis to watergas shift reaction......Page 283
Conclusions......Page 297
List of Symbols......Page 300
Literature Cited......Page 301
C......Page 303
G......Page 304
Ν......Page 305
P......Page 306
T......Page 307
Z......Page 308