This book examines the issues on noble metal influence on gaseous combustion. The book focuses on the new data on combustion processes having practical applications and includes fire safety issues in the use of noble metals in hydrogen recombiners for NPP, as well as in catalytically stabilized (CS) combustion technology including stimulation of combustion of hydrogen-blended hydrocarbons, synthesis of carbon nanotubes, and determination of catalytic ignition limits in noble metal-hydrogen-hydrocarbon systems to meet the challenges of explosion safety.
Author(s): Nickolai M. Rubtsov, Kirill Ya. Troshin, Michail I. Alymov
Series: Heat and Mass Transfer
Publisher: Springer
Year: 2023
Language: English
Pages: 229
City: Cham
Preface
Contents
1 Introduction
References
2 The Features of Hydrogen and Deuterium Ignition Over Platinum, Palladium, Ruthenium and Rhodium
2.1 Cellular Combustion and Delay Periods of Ignition of Near Stoichiometric H2–air Mixtures Over Pt Surface
2.1.1 Experimental
2.1.2 Results and Discussion
2.2 Hydrogen Ignition Over Pt and Pd Foils at Low Pressures
2.2.1 Experimental
2.2.2 Results and Discussion
2.3 Ignition of Hydrogen–Air Mixtures Over Pt at Atmospheric Pressure
2.3.1 Experimental
2.3.2 Results and Discussion
2.4 Surface Modes of Catalytic Ignition of Flammable Gases Over Noble Metals
2.4.1 Experimental
2.4.2 Results and Discussion
2.5 Hydrogen and Deuterium Ignition Over Noble Metals at Low Pressures
2.5.1 Experimental
2.6 Conclusions
Appendix
References
3 Regularities of Combustion of Hydrogen–Hydrocarbon (C1–C6)–Air and Hydrocarbon–Air Mixtures Over Surfaces of Noble Metals
3.1 Study of the Combustion of Hydrogen–Air and Hydrogen–Methane–Air Mixtures over the Surface of Palladium Metal with the Combined Use of a Hyperspectral Sensor and High-Speed Color Filming
3.1.1 Experimental
3.1.2 Results and Discussion
3.2 Features of Ignition of Hydrogen–Hydrocarbon (C1–C6)–Air Mixtures Over the Palladium Surface at 1–2 atm
3.3 Experimental
3.3.1 Results and Discussion
3.4 Ignition of Hydrogen–Oxygen and Hydrogen–Methane–Oxygen Mixtures with Heated Wires
3.4.1 Experimental
3.5 The Influence of Noble Metals on Thermoacoustic Oscillations and the Boundaries of the Region of Negative Temperature Coefficient in Combustion of N-Pentane–Air Mixtures
3.5.1 Experimental
3.5.2 Results and Discussion
3.6 A Negative Temperature Coefficient Phenomenon in the Combustion of Hydrogen–Propane–Air Mixtures Over Pd Foil
3.6.1 Experimental
3.6.2 Results and Discussion
3.7 Ignition of Hydrogen–Methane and Hydrogen–Isobutene Mixes with Oxygen Over Rh and Pd at Low Pressures
3.7.1 Experimental
3.7.2 Results and Discussion
3.8 Conclusions
References
4 Features of Combustion of Hydrogen–Methane–Air Fuels Over Surfaces of Noble Metals
4.1 Ignition Limits of Hydrogen–Methane Air Mixtures Over Metallic Rh at Pressure 1–2 atm
4.1.1 Experimental
4.1.2 Results and Discussion
4.2 Ignition Limits of Hydrogen–Air Mixtures Over Metallic Rh and Hydrogen-Ethane/Ethylene–Air Mixtures Over Pd and Rh at Atmospheric Pressure
4.2.1 Experimental
4.2.2 Results and Discussion
4.3 Features of Ignition of Mixtures of Hydrogen with Hydrocarbons (C2, C3, C5) Over Rhodium and Palladium at Pressures of 1–2 atm
4.3.1 Experimental
4.3.2 Results and Discussion
4.4 The Features of Ignition of Hydrogen–Methane Mixes Over Pt at Low Pressures in a Constant Electric Field in the Absence of Discharge
4.4.1 Experimental
4.4.2 Results and Discussion
4.5 Conclusions
References
5 Features of Interaction of the Surfaces of Noble Metals with Propagating Flame Front
5.1 Propagation of Laminar Flames of Natural Gas-Oxygen Mixtures in the Volumes of Complex Geometry
5.1.1 Experimental
5.1.2 Results and Discussion
5.2 Experimental Investigation into the Interaction of Chemical Processes on Pt Wire and Reactive Flows at Flame Penetration Through Obstacles in the Presence of Iron Nanopowder
5.2.1 Experimental
5.2.2 Results and Discussion
5.3 Catalytic Activity of Platinum and Palladium in Gaseous Reactions of Oxidation of Hydrogen and Methane at Low Pressures
5.3.1 Experimental
5.4 Conclusions
References
Conclusions
