A1 - Experimental investigations of pyrolysis and char conversion kinetics in a well-stirred reactor under atmospheric and pressurised conditions

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A2 - Experimental investigations of pyrolysis and char conversion kinetics in plug flow configurations with a focus on the ignition and early char burnout phase

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A3(F) - Experimental determination of reaction kinetics for the release of chlorine and sulphur species and for the conversion of these species in the gas phase

  • Frigge, L., Elserafi, G., Ströhle, J. and Epple, B., Sulfur and Chlorine Gas Species Formation during Coal Pyrolysis in Nitrogen and Carbon Dioxide Atmosphere, Energy & Fuels, 30 (9): 7713-7720, 2016.

  • von Bohnstein, M., Langen, J., Frigge, L., Stroh, A., Ströhle, J. and Epple, B., Comparison of CFD Simulations with Measurements of Gaseous Sulfur Species Concentrations in a Pulverized Coal Fired 1 MWth Furnace, Energy & Fuels, 30 (11): 9836-9849, 2016.

  • Frigge, L., Ströhle, J. and Epple, B., Release of sulfur and chlorine gas species during coal combustion and pyrolysis in an entrained flow reactor, Fuel, 201: 105-110, 2017.

  • Frigge, L., Ströhle, J. and Epple, B., Modification of a model for sulfur release during coal pyrolysis to account for oxy-fuel conditions, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C., Validation of a comprehensive kinetic mechanism for sulfur release during pyrolysis of solid fuels, 9th International Symposium on Coal Combustion, Qingdao, China, 2019.

  • Debiagi, P., Yildiz, C., Richter, M., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C., Experimental and modeling assessment of sulfur release from coal under low and high heating rates, Proceedings of the Combustion Institute, 2020.

  • von Bohnstein, M., Yildiz, C., Frigge, L., Ströhle, J. and Epple, B., Simulation study of the formation of corrosive gases in coal combustion in an entrained flow reactor, Energies, 13 (17): 4523, 2020.

  • Schmidt, D., Yildiz, C., Ströhle, J. and Epple, B., Release of nitrogen, sulfur and chlorine species from coal in carbon dioxide atmosphere, Fuel, 284: 119279, 2021.

  • Schmidt, D., Yildiz, C., Ströhle, J. and Epple, B., Experimental Assessment of the Release of Nitrogen, Sulfur and Chlorine Species During Pyrolysis of Coal and Biomass in CO2 Atmosphere, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Ontyd, C., Pielsticker, S., Yildiz, C., Schiemann, M., Hatzfeld, O., Ströhle, J., Epple, B., Kneer, R. and Scherer, V., Experimental determination of walnut shell pyrolysis kinetics in N2 and CO2 via thermogravimetric analysis, fluidized bed and drop tube reactors, Fuel: 119313, 2020.

  • Frigge, L., Ströhle, J. and Epple, B., Sulfur and Chlorine Gas Species Formation during Temperature-Programmed Coal Air- and Oxy-fuel Combustion, 13th International Conference on Energy for a Clean Environment, 2017.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C., Systematic evaluation and kinetic modeling of low heating rate sulfur release in pyrolysis and oxidation in various atmospheres, 3rd International Workshop on Oxy-Fuel Combustion, Montabaur, Germany, 2020.

  • Frigge, L., Wütscher, A., Lotz, K., Yildiz, C., Ströhle, J., Muhler, M. and Epple, B., Sulfur and Chlorine Gas Species Formation during Temperature-Programmed Air and Oxy-fuel Combustion of Coal, Energies: (submitted), 2020.

  • Debiagi, P., Yildiz, C., Ströhle, J., Epple, B., Faravelli, T. and Hasse, C., Systematic evaluation and kinetic modeling of low heating rate sulfur release in various atmospheres, Fuel, 289: 119739, 2021.

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A5 - Kinetic investigations of the effect of catalytically active minerals in biomass-derived solid fuels on pyrolysis and char conversion under oxy-fuel conditions

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A6 - Determination of excess-sorptive kinetics and equilibrium loadings of oxy-fuel gas components on solid fuels

  • Fieback, T. and Span, R., High Temperature Sorption Measurements for Determining Surface Effects of Solid Fuels, Energy Procedia, 61: 1501-1504, 2014.

  • Seibel, C. and Fieback, T., New sample carrier systems for thermogravimetric analysis under forced flow conditions and their influence on microkinetic results, Review of Scientific Instruments, 86 (9): 095104, 2015.

  • Seibel, C., Wedler, C., Vorobiev, N., Schiemann, M., Scherer, V., Span, R. and Fieback, T., Sorption measurements for determining surface effects and structure of solid fuels, Fuel Processing Technology, 153: 81-86, 2016.

  • Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Span, R., Schiemann, M., Muhler, M. and Scherer, V., Assessment of combustion rates of coal chars for oxy-combustion applications, 2nd International Workshop on Oxy-fuel Combustion, Bochum, Germany, 2018.

  • Schiemann, M., Vorobiev, N., Scherer, V., Wedler, C., Richter, M. and Span, R., Effektive Diffusionskoeffizienten in Kokspartikeln aus Oxyfuel-Feuerungen, 28. Deutscher Flammentag, 395-406, Darmstadt, Germany, 2017.

  • Wütscher, A., Wedler, C., Seibel, C., Hiltrop, D., Fieback, T., Muhler, M. and Span, R., On the alternating physicochemical characteristics of Colombian coal during pyrolysis, Journal of Analytical and Applied Pyrolysis, 123: 12-19, 2017.

  • Wedler, C., Richter, M. and Span, R., Integration of sorption kinetics in carbon conversion modeling for the description of oxyfuel combustion processes, Energy Procedia, 142: 1361-1366, 2017.

  • Wedler, C., Arami-Niya, A., Xiao, G., Span, R., May, E. F. and Richter, M., Gas Diffusion and Sorption in Carbon Conversion, Energy Procedia, 158: 1792-1797, 2019.

  • Senneca, O., Vorobiev, N., Wütscher, A., Cerciello, F., Heuer, S., Wedler, C., Span, R., Schiemann, M., Muhler, M. and Scherer, V., Assessment of combustion rates of coal chars for oxy-combustion applications, Fuel, 238: 173-185, 2019.

  • Fieback, T., Hochtemperatur-Sorptionsmessungen für die Bestimmung von Oberflächeneffekten an Festbrennstoffen, Thermodynamik-Kolloquium 2014, 2014.

  • Wedler, C., Arami-Niya, A., Xiao, G., Span, R., May, E. F. and Richter, M., Sorption Kinetics of CO2, CH4 and O2 on Cellulose-based Hydrochars for Carbon Conversion Modelling, Thermodynamik-Kolloquium 2018, 2018.

  • Wedler, C., Richter, M. and Span, R., Sorptive determination of effective diffusion coefficients for integration in carbon conversion models, 2nd International Workshop on Oxy-fuel Combustion, 2018.

  • Wedler, C., Seibel, C., Richter, M., Fieback, T. and Span, R., Oxyfuel Combustion – Experimental Investigation of Sorption Effects on Coal Char, Energy Procedia, 105: 1847-1851, 2017.

  • Wedler, C., Span, R. and Richter, M., Adsorption und Diffusion bei der Oxyfuel-Verbrennung: Graphit als Türöffner zur Verknüpfung von Experiment und MD-Simulation, Jahrestreffen der ProcessNet-Fachgruppen Adsorption und Hochdruckverfahrenstechnik, 2019.

  • Heuer, S., Wedler, C., Ontyd, C., Schiemann, M., Span, R., Richter, M. and Scherer, V., Evolution of coal char porosity from CO2-pyrolysis experiments, Fuel, 253: 1457-1464, 2019.

  • Adsorption and diffusion in oxyfuel combustion – Linking experiment and MD simulation through graphite structures as a first example, Diffusion Fundamentals 8, 2019.

  • Wedler, C., Lotz, K., Arami-Niya, A., Xiao, G., Span, R., Muhler, M., May, E. F. and Richter, M., Influence of Mineral Composition of Chars Derived by Hydrothermal Carbonization on Sorption Behavior of CO2, CH4, and O2, ACS Omega, 2020.

  • Wedler, C., Ontyd, C., Schiemann, M., Scherer, V., Richter, M. and Span, R., Evolution of micro- and mesopore structure during pyrolysis of coal and biomass in different atmospheres, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Wedler, C. and Span, R., A pore-structure dependent kinetic adsorption model for consideration in char conversion – Adsorption kinetics of CO2 on biomass chars, Chemical Engineering Science: 116281, 2020.

  • Wedler, C., Span, R. and Richter, M., Comparison of micro- and macropore evolution of coal char during pyrolysis, Fuel, 275: 117845, 2020.

  • Adsorption und Diffusion bei der Oxyfuel-Verbrennung von Festbrennstoffen: Vergleich von Experiment und MD-Simulation, 29. Deutscher Flammentag, 2019.

  • Wedler, C., Eisenbach, T., Schwarz, J. and Span, R., A first parameterization of the pore-structure dependent kinetic adsorption model for O2 adsorption in biomass conversion modeling, 13th International Conference on Applied Energy, 2021.

  • Tarlinski, D., Freisewinkel, E., Eisenbach, T., Span, R., Schiemann, M. and Scherer, V., Char burnout of walnut shells using optical measurement techniques and first comparison of the experimental data to the CCK model, 46th International Technical Conference on Clean Energy, 2022.

  • Ontyd, C., Freisewinkel, E., Wedler, C., Eisenbach, T., Span, R., Senneca, O. and Scherer, V., Flash pyrolysis of walnut shells and poplar in N2 and CO2: pyrolysis kinetics, pore evolution and a model for evaluation of pyrolysis species, 13th European Conference on Industrial Furnaces and Boilers, 2022.

  • Wedler, C. and Span, R., Micropore Analysis of Biomass Chars by CO2 Adsorption: Comparison of Different Analysis Methods, Energy & Fuels, 35 (10): 8799-8806, 2021.

  • Eckhard, T., Pflieger, C., Russo, C., Freisewinkel, E., Eisenbach, T., Böttger, J., Senneca, O., Apicella, B., Schiemann, M., Span, R., Scherer, V., Muhler, M. and Cerciello, F., Mineral effects on chemical and physical transformations of fast pyrolysis products of cellulose-based model fuels in N2 and CO2, Fuel, 340: 127477, 2023.

  • Eisenbach, T. and Span, R., Adsorption measurements: An experimental basis for the determination of pore structure and mass transport properties, Workshop on thermophysical properties and related topics, 2023.

  • Eisenbach, T., Duarte, H. A., Wedler, C., Pflieger, C., Muhler, M. and Span, R., Experimental Investigations on the Adsorptive Behavior of H2O Vapor on HTC Char Particles, 14th International Conference on Applied Energy, 2022.

  • Eisenbach, T., Duarte, H. A., Wedler, C. and Span, R., Experimental investigations on the adsorptive mass transfer of H2O vapor on biomass char particles, Thermodynamik-Kolloquium, 2022.

  • Eisenbach, T., Pflieger, C., Wedler, C., Muhler, M. and Span, R., Correlation of chemical and structural pore properties and H2O vapor adsorption in biomass char particles, 4th International Workshop on Oxy-Fuel Combustion – Book of Abstracts, 2023.

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A7 - Atomistic multiscale simulations of char conversion

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A8 - Development of a comprehensive kinetic model for the conversion of solid fuels in oxy-fuel atmospheres

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B1 - Theoretical and experimental investigation on the devolatilisation and oxidation of solid-fuel particles in a counterflow burner under oxy-fuel conditions

  • Cai, L., Baroncelli, M., Kruse, S., Felsmann, D., Thies, C. and Pitsch, H., Extinction Characteristics of Methane Counterflow Flames under Oxy-Fuel and Air Conditions, China National Symposium on Combustion, 2016.

  • Baroncelli, M., Felsmann, D., Kruse, S., Falkenstein, T., Beeckmann, J. and Pitsch, H., Extinction strain rates for coal light volatiles under oxy-fuel conditions, China National Symposium on Combustion, 2016.

  • Xu, K., Zhang, H., Wu, Y., Baroncelli, M. and Pitsch, H., Transient model for soot formation during the combustion of single coal particles, Proceedings of the Combustion Institute, 36 (2): 2131-2138, 2017.

  • Baroncelli, M., Kruse, S. and Pitsch, H., Experimental and numerical investigation of extinction strain rates of coal devolatilization products under oxy-fuel conditions, Proceedings of the European Combustion Meeting, Budapest, Hungary, 2015.

  • Felsmann, D., Baroncelli, M., Beeckmann, J. and Pitsch, H., Molecular-beam mass spectrometry study of oxy-combustion in a novel coal-plate experiment, Proceedings of the Combustion Institute, 2018.

  • Emmert, J., Baroncelli, M., van der Kley, S., Pitsch, H. and Wagner, S., Axisymmetric Linear Hyperspectral Absorption Spectroscopy and Residuum-Based Parameter Selection on a Counter Flow Burner, Energies, 12 (14): 2786, 2019.

  • Baroncelli, M., Mao, Q., Galle, S., Hansen, N. and Pitsch, H., Role of ring-enlargement reactions in the formation of aromatic hydrocarbons, Physical Chemistry Chemical Physics, 22 (8): 4699-4714, 2020.

  • Cai, L., Kruse, S., Felsmann, D. and Pitsch, H., A Methane Mechanism for Oxy-Fuel Combustion: Extinction Experiments, Model Validation, and Kinetic Analysis, Flow, Turbulence and Combustion, 34: 6970, 2020.

  • Chen, B., Ilies, B. D., Chen, W., Xu, Q., Li, Y., Xing, L., Yang, J., Wei, L., Hansen, N., Pitsch, H., Sarathy, S. M. and Wang, Z., Exploring low temperature oxidation of 1-butene in jet-stirred reactors, Combustion and Flame, 222: 259-271, 2020.

  • Chen, B., Kruse, S., Schmid, R., Cai, L., Hansen, N. and Pitsch, H., Oxygenated PAH formation chemistry investigation in anisole jet stirred reactor oxidation by a thermodynamic approach, 3rd International Workshop on Oxy-Fuel Combustion, 2020.

  • Liu, P., Chen, B., Li, Z., Bennett, A., Sioud, S., Pitsch, H., Sarathy, S. M. and Roberts, W. L., Experimental and theoretical evidence for the temperature-determined evolution of PAH functional groups, Proceedings of the Combustion Institute, 2020.

  • Wen, Xu, Nicolai, H., Schneider, H., Cai, L., Janicka, J., Pitsch, H. and Hasse, C., Flamelet LES of a swirl-stabilized multi-stream pulverized coal burner in air and oxy-fuel atmospheres with pollutant formation, Proceedings of the Combustion Institute, 2020.

  • Wen, Xu, Shamooni, A., Stein, O. T., Cai, L., Kronenburg, A., Pitsch, H., Kempf, A. M. and Hasse, C., Detailed analysis of early-stage NOx formation in turbulent pulverized coal combustion with fuel-bound nitrogen, Proceedings of the Combustion Institute, 2020.

  • Baroncelli, M., Felsmann, D., Hansen, N. and Pitsch, H., Investigating the effect of oxy-fuel combustion and light coal volatiles interaction: A mass spectrometric study, Combustion and Flame, 204: 320-330, 2019.

  • Vorobiev, N., Kruse, S., Pitsch, H. and Schiemann, M., Demonstration of laser-induced incandescence in single coal particle enveloping flames, 9th European Combustion Meeting, 2019.

  • Cai, L., Kruse, S., Felsmann, D., Thies, C., Yalamanchi, K. K. and Pitsch, H., Experimental Design for Discrimination of Chemical Kinetic Models for Oxy-Methane Combustion, Energy & Fuels, 31 (5): 5533-5542, 2017.

  • Chen, B., Kruse, S., Schmid, R., Cai, L., Hansen, N. and Pitsch, H., Oxygenated PAH Formation Chemistry Investigation in Anisole Jet Stirred Reactor Oxidation by a Thermodynamic Approach, Energy & Fuels, 35 (2), 2021.

  • Chen, B., Hellmuth, M., Faller, S., May, L., Liu, P., Cai, L., Roberts, W. L. and Pitsch, H., Exploring the combustion chemistry of anisole in laminar counterflow diffusion-flames under oxy-fuel conditions, Combustion and Flame: 111929, 2021.

  • Baroncelli, M., Mao, Q., Pitsch, H. and Hansen, N., Effects of C1–C3 hydrocarbon blending on aromatics formation in 1-butene counterflow flames, Combustion and Flame, 230: 111427, 2021.

  • Chen, B., Liu, P., Pelucchi, M., Guidici, C., Maffei, L. P., Faller, S., Xu, Q., Huang, J., Zhang, F., Huang, C., Leonhard, K., Wang, Z., Mehl, M., Roberts, W. L., Faravelli, T. and Pitsch, H., New insights into the oxidation chemistry of pyrrole, an N-containing biomass tar component, Proceedings of the Combustion Institute, 2022.

  • Hellmuth, M., Cameron, F., Faller, S., Schmückert, L., Chen, B., Ren, Y. and Pitsch, H., Synergistic effect on PAH and soot formation in ethylene counterflow diffusion flames by the addition of 1,3-dioxolane – a bio-hybrid fuel, Proceedings of the Combustion Institute, 2022.

  • Liu, P., Chen, B., Bennett, A., Pitsch, H. and Roberts, W. L., Probing the influence of hydrogen cyanide on PAH chemistry, Proceedings of the Combustion Institute, 2022.

  • Hellmuth, M., Chen, B., Bariki, C., Cai, L., Cameron, F., Wildenberg, A., Huang, C., Faller, S., Ren, Y., Beeckmann, J., Leonhard, K., Heufer, K. A., Hansen, N. and Pitsch, H., A comprehensive study on the combustion chemistry of two bio-hybrid fuels: 1,3-dioxane and 1,3-dioxolane, 12th Mediterranean Combustion Symposium, 2023.

  • Chen, B., Faller, S., Nobili, A., Pelucchi, M. and Pitsch, H., Exploring formation of N-containing pollutants in pyrrole counterflow diffusion flame, 4th International Workshop on Oxy-Fuel Combustion – Book of Abstracts, 2023.

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B2 - Development of modelling approaches for fluid-particle interactions in turbulent flow by direct particle-fluid simulations

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B3 - Direct numerical simulation and modelling of oxy-fuel combustion processes

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B4 - Detailed experimental investigation and characterisation of oxy-fuel biomass burners via laser-optical methods

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B5 - Robust absorption-spectroscopic diagnostics for biomass combustion: measurement methods for gas species, gas temperatures and particle loading

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B6(F) - Modeling of Particle-Turbulence-Chemistry Interaction in Oxy-Fuel-Processes

  • Knappstein, R., Künne, G., Ketelheun, A., Köser, J., Becker, L., Heuer, S., Schiemann, M., Scherer, V., Dreizler, A., Sadiki, A. and Janicka, J., Devolatilization and volatiles reaction of individual coal particles in the context of FGM tabulated chemistry, Combustion and Flame, 169: 72-84, 2016.

  • Ketelheun, A., Mehdizadeh, A., Knappstein, R., Sadiki, A. and Janicka, J., Investigation of Unsteady Simulation Methods in an Oxyfuel Configuration, 27. Deutscher Flammentag, Clausthal-Zellerfeld, Germany, 2015.

  • Knappstein, R., Künne, G., Meier, T., Sadiki, A. and Janicka, J., Evaluation of coal particle volatiles reaction by using detailed kinetics and FGM tabulated chemistry, Fuel, 201: 39-52, 2017.

  • Köser, J., Knappstein, R., Goßmann, A-K., Becker, L., Böhm, B., Janicka, J. and Dreizler, A., An Experimental and Numerical Study of Volatile Combustion of Single Coal Particles in an Oxygen Enriched Atmosphere, 32nd Annual International Pittsburgh Coal Conference, Pittsburgh, Pennsylvania, USA, 2015.

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B7 - Investigation of ignition and combustion processes of solid fuel particles under oxy-fuel conditions

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B8 - Sensitivity analysis and uncertainty quantification of pulverised solid fuel combustion

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C1 - Experimental investigation of pulverised biomass combustion for validation of numerical models

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C2 - Unsteady modelling and simulation of oxy-fuel combustion chambers

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C3(F) - Spectral modeling of thermal radiation in Oxy-Fuel pulverized coal flames

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C4 - Modelling of radiative properties of pulverised biomass particles during oxy-fuel combustion

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C5 - Measurement of the radiative properties of solid fuel particles in oxy-fuel atmospheres

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C6(F) - Measurement of the temperature depending spectral emissivity of ashes and deposits under Oxy-Fuel conditions

  • Greffrath, F., Gorewoda, J., Schiemann, M. and Scherer, V., Influence of chemical composition and physical structure on normal radiant emittance characteristics of ash deposits, Fuel, 134: 307-314, 2014.

  • Gorewoda, J., Schiemann, M., Scherer, V. and Neuroth, M., An Examination on the Influence of the Oxidation State of Iron on the Spectral Radiative Emittance of Synthetic Ash Layers, 40th International Technical Conference on Clean Coal & Fuel Systems, Clearwater, Florida, USA, 2015.

  • Gronarz, T., Schulze, J., Laemmerhold, M., Graeser, P., Gorewoda, J., Kez, V., Habermehl, M., Schiemann, M., Ströhle, J., Epple, B., Scherer, V. and Kneer, R., Quantification of the influence of parameters determining radiative heat transfer in an oxy-fuel operated boiler, Fuel Processing Technology, 157: 76-89, 2017.

  • Gorewoda, J. and Scherer, V., Influence of Carbonate Decomposition on Normal Spectral Radiative Emittance in the Context of Oxyfuel Combustion, Energy & Fuels, 30 (11): 9752-9760, 2016.

  • Gorewoda, J. and Scherer, V., Comparison of normal spectral emittance of sulfates and carbonates – significant mineral classes of ashes under oxy-fuel conditions, Combura Symposium, Soesterberg, Netherlands, 2016.

  • Gorewoda, J. and Scherer, V., Normal Radiative Emittance of Coal Ash Sulfates in the Context of Oxyfuel Combustion, Energy & Fuels, 31 (4): 4400-4406, 2017.

  • Gorewoda, J. and Scherer, V., Key parameters for the radiative emittance of ashes of solid fuels, Energy Procedia, 120: 181-188, 2017.

  • Draper, T., Gorewoda, J., Kolczynski, L., Fry, A., Scherer, V., Ring, T. and Eddings, E., The Influence of Temperature on the Spectral Emittance of Ash Deposits taken from a 1.5 MW, Pulverized Coal Test Facility, 42nd International Technical Conference on Clean Energy, Clearwater, Florida, USA, 2017.

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C7 - Experimental investigation on the interaction of flame stability, radiation, burnout, and emissions in a semi-industrial-scale swirl-stabilised oxy-fuel furnance

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S - Optimisation and management of an integrated simulation platform for large-scale simulations of oxy-fuel combustion

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T1 - Oxy-fuel combustion of Refuse Derived Fuels (RDF) under cement kiln conditions

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Z - General coordination and administration of the collaborative research centre

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