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Home _Departments _Chemical Reaction Engineering
Chemical Reaction Engineering
Lecture Chemical reaction engineering
Professor Haumann / Willmes
Content Macro-kinetics (selectivity problem, the influence of mass transfer, simultaneous heat and mass transfer), fluid-fluid reactions (chemical reaction and mass transfer with and without phase boundary layer acceleration factors and hinterland ratio) in reactor selection, non-catalytic gas-solid reactions (borderline cases of porous and non-porous grains, application of the shrinking-core model at the "rate determining step"); single pellet diffusion reactor, parameter estimation, types of chemical r eaction apparatus (classification criteria, fluidized bed reactor, fluid / fluid systems); ideal reactors (ideal flow tube: sensitivity, adiabatic reaction, continuous stirred tank: Stability Analysis); real reactors (residence time distribution models, degrees of conversion, single-and multi-dimensional dispersion models) cell models; reaction (concentration and temperature control, complex reactions), fluidized bed reactors (homogeneous and heterogeneous, multi-phase models).
Aims of the lecture The students should be familiar with current methods and problems of reactor modelling, design and scale-up so that they are confident of meeting the requirements for completing the Master's thesis in chemical reaction engineering.
Lecture Solvent concepts for catalytic processes
Professor Prof. Wasserscheid
Content Solvents (polarity, solvation, dissociation, ionization, miscibility, interaction, classification); solvents and catalysis (homogeneous catalysis, liquid-liquid multiphase catalysis); catalysis in organic solvents, water, perfluorinated solvents, supercritical solvents and ionic liquids; multiphase catalysis (catalyst and product separation, extraction, conversion).
Aims of the lecture Technical reactions in solution, new developments in the field of technical solvents, application in process engineering of catalytic reactions in liquid-liquid-multiphase systems
Lecture Heterogeneous Catalysis
Professor Haumann / Willmes
Content Catalysis (definition, phenomenon, classification), adsorption (processes, equilibria, kinetics), heterogeneous catalysis (mechanisms, styles of catalysators, characterization, processes), characterization of catalysators (diffraction, optical, chemical, ad- and desorption methods), fabrication methods, technical examples (physical and chemical fundamentals, operational modes, process layout), reactor layouts (differential and integral reactors)
Aims of the lecture Students should become acquainted with the principles of catalysis and adsorption. They will cover the physical and chemical fundamentals and they will be able to derive solutions for characterizing catalytic reactions and for developing technical process layouts.
Students will be introduced to examination methods and to the evaluation of experimental results of catalytic experiments through exercises and practical lab courses
Lecture Chemical production processes
Professor Haumann / Willmes
Content Raw materials (resources, availability, evaluation); crude oil (chemical refinery, hydrotreating, cracking, aromatic); natural gas (synthesis gas, cleaning, application); methanol (synthesis, petrol, olefin, aromatic); plastics (synthesis, polymerization); tensides (production, washing agent); renewable resources (carbohydrates, cellulose, starch, sugar); ammonia (Haber-Bosch process, oxidation, absorption); chlorine (alkali chloride electrolysis, amalgam, membrane method); salts (soda, KCl, phosphates, Solvay method); silicate chemistry; special products (catalyser, chip: endowment, structuring); profitability and evaluation of procedures.
Aims of the lecture The students should understand the processes of material changing production. Based on typical products from the chemical industry, students will learn the relation between the physical-chemical principles of the processes, process engineering and design.