Internal Reactions in Porous Carbon Chars – Flow-Tube Reactor Approach
Start Date
1-3-2011 2:20 PM
Description
A flow-tube reactor approach to study gas-surface reactions on carbon will be described. Experiments on carbon oxidation and nitridation will be presented, and proposed experiments to document pyrolysis gas chemistry in hot carbon chars will be discussed. Flow tube reactor experiments use simple axisymmetric geometries amenable to direct modeling with minimal approximation. The presentation will focus on the control and verification of test conditions, and on the available measurement techniques for quantifying reactant and product concentrations. In particular, we will discuss the generation and quantification of dissociated oxygen and nitrogen using discharge sources and titration techniques, and their detection by laser induced fluorescence, as well as the use of mass spectrometry to study the chemical evolution of pyrolysis gas mixtures.
Internal Reactions in Porous Carbon Chars – Flow-Tube Reactor Approach
A flow-tube reactor approach to study gas-surface reactions on carbon will be described. Experiments on carbon oxidation and nitridation will be presented, and proposed experiments to document pyrolysis gas chemistry in hot carbon chars will be discussed. Flow tube reactor experiments use simple axisymmetric geometries amenable to direct modeling with minimal approximation. The presentation will focus on the control and verification of test conditions, and on the available measurement techniques for quantifying reactant and product concentrations. In particular, we will discuss the generation and quantification of dissociated oxygen and nitrogen using discharge sources and titration techniques, and their detection by laser induced fluorescence, as well as the use of mass spectrometry to study the chemical evolution of pyrolysis gas mixtures.