Clean energy from waste : fundamental investigations on ashes and tar behaviours in a two stage fluid bed-plasma process for waste gasification / by Massimiliano Materazzi.

Introduction -- Gasification of Waste-derived Fuels in Fluidized Beds: Fundamental Aspects and Industrial Challenges -- Plasma as an Alternative Way to Gas Reforming and Ash Disposal -- Apparatus and Investigative Approach -- Modelling of a Two-stage Process: Comparison of Different Approaches and Performance Analysis -- Tar Evolution in the two Stage Fluid Bed-plasma Gasification Process -- Fate and Behaviour of Inorganic Constituents -- Conclusions and Future Work.

This book explores the use of recent advanced multiple stage conversion technologies. These applications combine conventional fluidised bed systems with new plasma technologies to efficiently generate different energy outputs from waste materials with minimum cleaning effort. Using a mix of modelling and experimental approaches, the author provides fundamental insights into how the key operating variables of the two-stage process may impact the final quality of syngas. This thesis serves as a useful reference guide on the modelling and design of single and multiple-stage systems for thermal waste treatment. Its extended section on plant configuration and operation of waste gasification plants identifies the main technical challenges, and is of use to researchers entering the field.