Experimental and Theoretical Analysis of Wet Oxidative Gas Desulphurization Processes =Experimentelle Und Theoretische Analyse Von Nass-Oxidativen Gasentschwefelungsverfahren

摘要

The chemical industry holds many innovation potentials and is thus an engine of innovation for many other industries whereby the preservation of the research and business location Germany can be ensured. The successive development of wet-oxidative gas desulphurization processes in the field of coking technology through the use of innovative technologies will be shown in this thesis.For this purpose, in fundamental experiments on laboratory scale relevant catalysts in terms of reactive yield and stability are examined. By design, construction and operation of a test facility on a pilot plant scale, an apparatus concept is tested, which has not previously been used in the field of gas desulfurization and holds in addition great potentials. Subsequently, a process model of the pilot plant is successfully validated. By using modern process simulation software, a basis is created that is essential for further process optimizations which should be based on validated process models. In addition, a generic replacement model of the innovative apparatus concept for the implementation into the Flowsheet Simulator CHEMCAD has been developed.The work concludes with the investigation of the accumulating sewage. Here, the focus lies on the oxidation of thiosulfate as the main secondary component of the investigated process. For this purpose, kinetic parameters are identified by a parameter estimation and a model discrimination, which can be used for the design of the investigated process and downstream process plants.