Complete Ph. D. Thesis by Marcus Frey

Preface
The high energy demands in our society pose great challenges if we are to avoid adverse environmental effects. Increasing energy efficiency and the reduction and/or prevention of the emission of environmentally harmful substances are principal areas of focus when striving to attain a sustainable development. These are the key issus of the CHEC (Combustion and harmful Emission Control) Research Centre at the Department of Chemical Engineering of the Technical University of Denmark. CHEC carries out research in fields related to chemical reaction engineering and combustion, with a focus on high-temperature processes, the formation and control of harmful emissions, and particle technology.

In CHEC, fundamental and applied research, education and knowledge transfer are closely linked, providing good conditions for the application of research results. In addition, the close collaboration with industry and authorities ensures that the research activities address important issus for society and industry.
CHEC was started in 1987 with a primary objective: linking fundamental research, education and industrial application in an internationally oriented research centre. Its research activities are co-funded by the Technical University of Denmark, Elsam A/S, Eltra a.m.b.a., Elkraft System a.m.b.a., Energi E2 A/S, the Danish Technical Research Council, the Danish and nordic Energy Research Programmes, EU, and industrial partners.
This particular thesis is the result of a long, tight and fruitful cooperation through Marcus Frey, Industrial Ph. D. student, with Niro A/S.

Marcus G. Frey
Søborg/Denmark, January 2001