Development of Off-Gas Emission Kinetics for Stored Wood Pellets

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A lumped three-reaction kinetic model for off-gas emissions of stored wood pellets in sealed containers has been developed accounting for the formation of CO and CO2 and the depletion of O2. Off-gas emission data at different conditions were used to extract kinetic model parameters by numerically fitting the proposed model equations. The fitted kinetic model parameters for different cases showed consistency with one another. With properly estimated model parameters, the current kinetic model can be used to predict off-gas emissions, oxygen depletion, and the buildup of toxic air pollutants in wood pellet storage containers/vessels.

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