TY - CONF A1 - Berger, Anka T1 - BAM Research Programm - SAPT Related to the safe transport of polymerizing substances N2 - Präsentation zum geplanten BAM-Forschungsvorhaben ("Safe transport of stabilized polymerizing substances: Investigation on the degradation of selected stabilizers"), bezogen auf den sicheren Transport (Straße, See) von polymerisierenden Substanzen. Der Schwerpunkt liegt dabei auf den systematischen Untersuchungen - mittels Thermal Activity Monitor (TAM IV) - zum zeitlichen Abbau des Stabilisators bei der Polymerisation sowie auf der Bestimmung der entsprechenden volumenabhängigen selbstbeschleunigenden Polymerisation (SAPT). T2 - IGUS EOS ad hoc working groups - "Testing of solid oxidizers" / "Classification of energetic substances" / "Revision of test series H" CY - Frankfurt am Main, Germany DA - 21.11.2022 KW - SAPT KW - Prüfserie-H KW - Polymerisierende Stoffe KW - Zeitlicher Abbau von Stabilisatoren KW - Thermisches Verhalten KW - Transport KW - TAM IV PY - 2022 AN - OPUS4-56474 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Anka T1 - Exchange of experts - UN methods according to UN-MTC N2 - The presentation is an overview about the UN methods and the procedure regarding the classification of self-reactive substances and organic peroxides according to the UN-Manual of Tests and Criteria. T2 - Exchange of Experts - BAM, Fachbereich 2.3 and Korea Fire Institute (KFI) CY - Berlin, Germany DA - 25.06.2024 KW - UN-Manual of Tests and Criteria KW - UN-Methods KW - Classification of Dangerous Goods KW - Self-reactive substances KW - Organic peroxides PY - 2024 AN - OPUS4-60732 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Anca-Couce, A. A1 - Berger, Anka A1 - Zobel, N. T1 - How to determine consistent biomass pyrolysis kinetics in a parallel reaction scheme N2 - This paper discusses a method for determining the kinetics of biomass pyrolysis based on comparing isoconversional methods, such as the Kissinger and KAS methods, and least squares fitting in a parallel reaction scheme with three pseudo-components roughly representing cellulose, hemicellulose and lignin. The activation energies of the different pseudo-components reported in the literature vary widely. This variation could be reduced if care were taken to determine the kinetics of biomass pyrolysis: First, the reference experiments with pure cellulose are reproduced to validate the thermogravimetric analysis. Then, experiments are performed and analyzed with different heating rates and isoconversional methods are employed to verify the reliability of the experiments and to avoid selecting inappropriate reaction models in a fitting routine. KW - Kinetics KW - Biomass KW - Pyrolysis KW - Isoconversional KW - Fitting PY - 2014 DO - https://doi.org/10.1016/j.fuel.2014.01.014 SN - 0016-2361 VL - 123 SP - 230 EP - 240 PB - Elsevier Ltd. CY - Amsterdam AN - OPUS4-31176 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Berger, Anka A1 - Anca-Couce, A. A1 - Dieguez-Alonso, A. A1 - Zobel, N. A1 - Kienzl, N. A1 - Behrendt, F. T1 - Influence of heterogeneous secondary reactions during slow pyrolysis on char oxidation reactivity of woody biomass N2 - The influence of heterogeneous secondary reactions on char oxidation reactivity, which can take place during slow pyrolysis processes in a woody biomass particle, is analyzed in this study. To this end, the oxidative behavior of primary char produced in a thermobalance with initial wood masses of a few milligrams is compared to the behavior of char produced under conditions enhancing secondary reactions, i.e., large particle and bed sizes in fixed-bed reactors. The influence of the Maximum conversion temperature, heating rate, and catalytic effect of inorganics is also studied to compare the effect of each parameter. Results show that a significant reduction in reactivity takes place when char is produced under conditions enhancing These secondary reactions during pyrolysis. The effect is of similar order as the effect as a result of thermal annealing at 900 °C or the catalytic effect of alkali and alkaline earth metals. Therefore, the presence of heterogeneous secondary reactions during pyrolysis should be taken into account in studies addressing biomass char reactivity. Furthermore, it is shown that the reduction of reactivity as a result of secondary reactions is related to neither the loss of oxygen-containing functional groups nor the potential blocking of pores, specially micropores, resulting from the formation of this secondary char. The explanation may, therefore, lie on the deactivation or blocking of active sites by the secondary char. KW - Char conversion KW - Char reactivity KW - Pyrolysis KW - Woody biomass KW - Thermogravimetric analysis KW - TGA PY - 2017 DO - https://doi.org/10.1021/acs.energyfuels.6b02350 SN - 0887-0624 SN - 1520-5029 VL - 31 IS - 3 SP - 2335 EP - 2344 PB - ACS Publications AN - OPUS4-40189 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Anka T1 - Thermoanalytische Untersuchungen von Plasmabeschichteten Polyolefinen mit Flammenschutzeigenschaften T2 - Die 21. Kalorimetrietage CY - Braunschweig, Deutschland DA - 27.05.2015 PY - 2015 AN - OPUS4-33384 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Anka T1 - Untersuchungen zur thermischen Zersetzung von Azodicarboxylaten mittels STA-FTIR-MS T2 - Die 21. Kalorimetrietage CY - Braunschweig, Deutschland DA - 2015-05-27 PY - 2015 AN - OPUS4-33385 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Berger, Anka A1 - Krause, Ulrich ED - Matthias Kühle-Weidemeier, T1 - Vermeidung der Selbstentzündung bei Deponiestoffen und Recyclingmaterialien T2 - 3. Praxistagung Deponie, Zwischenlager - Deponien - Nachsorge CY - Hannover, Deutschland DA - 2008-12-02 KW - Abfallstoffe KW - Recyclingstoffe KW - Brandverhütung KW - Selbstentzündung KW - Numerische Simulation KW - Solid wastes KW - Recycling materials KW - Fire prevention KW - Self-ignition KW - Numerical simulation PY - 2008 SN - 978-3-86727-801-0 SP - 36 EP - 47 PB - Cuvillier AN - OPUS4-18564 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Anka T1 - Vorstellung des Leitfadens für die sichere Lagerung von Recyclingstoffen T2 - Workshop: "Brandvermeidung in Recycling-Zwischenlagern", Ministerium für Ländliche Entwicklung, Umwelt und Verbraucherschutz (MLUV) des Landes Brandenburg CY - Potsdam, Germany DA - 2009-01-22 PY - 2009 AN - OPUS4-18800 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Anka T1 - Ergebnisse von Laboruntersuchungen zum Zündverhalten von Recyclingstoffen T2 - Workshop: "Brandvermeidung in Recycling-Zwischenlagern", Ministerium für Ländliche Entwicklung, Umwelt und Verbraucherschutz (MLUV) des Landes Brandenburg CY - Potsdam, Germany DA - 2009-01-22 PY - 2009 AN - OPUS4-18801 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Krüger, Simone A1 - Berger, Anka A1 - Krause, Ulrich T1 - Chemisch-analytische Untersuchung von Brandprodukten aus Recycling-Zwischenlagern N2 - Organische Produkte, wie Papier/Pappe, Textilien oder Kunststoffe, sind meist brennbar. In Recycling-Zwischenlagern werden solche Stoffe in großen Mengen gelagert. In der vorliegenden Arbeit wurde untersucht, welche gasförmigen Produkte im Falle eines Brandes – verursacht z. B. durch Selbstentzündung – entstehen. Verschiedene Fraktionen (Papier/Pappe, Textilien und Kunststoffe) aus Recycling-Zwischenlagern wurden zunächst mechanisch zerkleinert. Dazu wurden die Proben aus den jeweiligen Fraktionen so zerkleinert, dass letztendlich homogene Verteilungen vorlagen. Mit Hilfe von verschiedenen Zerkleinerungsmühlen konnten auf diese Weise Korngrößen bis zu 0,2 mm erhalten werden. Diese homogenen Probenverteilungen wurden anschließend im DIN-Rohr nach DIN 53436 verschwelt. Die entstehenden Rauchgase wurden mit Hilfe der FTIR-Spektroskopie brandanalytisch untersucht. Dabei unterschied sich die Zusammensetzung der Rauchgase beim Verschwelprozess teilweise erheblich. Die bei der Verschwelung entstehenden Rauchgase enthalten bei Brandstoffen ohne Heteroatome in erster Linie toxische Bestandteile, wie Kohlenmonoxid und Kohlendioxid. Bei der Verschwelung von Kunststoffen mit Heteroatomen können zusätzlich zu den Hauptkomponenten Kohlenmonoxid, Kohlendioxid und Wasser auch noch weitere toxische Rauchgaskomponenten nachgewiesen werden. Dabei kommt es bei chlorhaltigen Kunststoffen vorwiegend zur Bildung von Chlorwasserstoff, bei stickstoffhaltigen Kunststoffen zur Bildung von Ammoniak und Blausäure. KW - Recycling-Zwischenlager KW - Rauchgase KW - Analytik KW - FTIR-Spektroskopie KW - Kunststoffe KW - Papier KW - Pappe KW - Textilien KW - Schwelbrand PY - 2009 SN - 0027-2957 SN - 1863-9763 VL - 41 IS - 6 SP - 298 EP - 303 PB - Erich Schmidt CY - Berlin AN - OPUS4-19613 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Anka T1 - Analysis of emissions from fires of wastes and recycling materials. T2 - First Internaional Conference on Recycling and Reuse of Materials (Polymers, Wood, Leather, Water, Glass, Metals, Ceramics, Semi Conductors, etc.) and their Products (ICRM - 2009) CY - Kottayam, India DA - 2009-07-17 PY - 2009 AN - OPUS4-19757 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Berger, Anka A1 - Krause, Ulrich T1 - Brandvermeidung bei Recyclingmaterialien KW - Recyclingstoffe KW - Selbstentzündung KW - Haldenbrand KW - Brandsimulation PY - 2009 SN - 0042-1804 VL - 58 IS - 3 SP - 153 EP - 159 PB - Kohlhammer CY - Stuttgart AN - OPUS4-19797 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wehrstedt, Klaus-Dieter A1 - Berger, Anka T1 - Explosive Properties and Thermal Hazards of Azodicarboxylates T2 - IGUS Energetic and Oxidising Substances (EOS) Working Group Meeting CY - Tokyo, Japan DA - 2010-05-26 PY - 2010 AN - OPUS4-21360 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Anka T1 - Vermeidung der Selbstentzündung von Deponiestoffen und Recyclingmaterialien T2 - BAM-Kolloquium Sicherheit in Technik und Chemie CY - Berlin, Germany DA - 2010-05-19 PY - 2010 AN - OPUS4-21390 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Anka T1 - Assessment of the Explosive Properties and Thermal Hazards of Azodicarboxylates T2 - Joint Symposium on Thermal Analysis and Calorimetry GEFTA-PTKAT-CWGTA CY - Dresden, Germany DA - 2010-05-26 PY - 2010 AN - OPUS4-21392 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Berger, Anka A1 - Krause, Ulrich T1 - Investigations on the self-ignition of deposits containing combustibles N2 - Self-ignition of deposited combustibles is a possible reason for excessive fires occurring on deposits for recycling materials or on waste dumps. Two series of experiments were performed to assess the hazard of self-ignition: hot storage tests with different homogeneous mixtures of combustible material and inert material and tests with pockets of combustible material embedded in inert matter. In the first test series considerable exothermicity (ΔT>60K) was observed for mass fractions of combustible material as low as 2.5%. In the second series it could be shown that the heat transfer from a pocket of burning material through the inert matter can ignite a second pocket of combustible matter. Based on the experimental data, numerical simulations were performed to predict self-ignition on real-scale waste deposits. For a deposit of specific size and shape, the influence of the ambient temperature on the occurrence of self-ignition has been investigated. KW - Self-ignition KW - Hot storage tests KW - Cellulose KW - Municipal solid waste KW - Numerical simulations PY - 2008 DO - https://doi.org/10.1002/fam.966 SN - 0308-0501 SN - 1099-1018 VL - 32 IS - 4 SP - 231 EP - 248 PB - Heyden CY - London AN - OPUS4-17577 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ferrero, Fabio A1 - Malow, Marcus A1 - Berger, Anka A1 - Noll, Matthias T1 - Brandvermeidung bei der Lagerung von biogenen Brennstoffen am Beispiel von Kiefernholz T2 - Experten Workshop "Lagerung von Holzhackschnitzeln" CY - Potsdam-Bornim, Deutschland DA - 2008-06-18 KW - Selbstentzündung KW - Brandverhütung KW - Lagerung KW - Biomasse KW - Schüttgüter PY - 2008 SN - 0947-7314 IS - 63 SP - 32 EP - 44 CY - Potsdam AN - OPUS4-19043 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Anka T1 - Azodicarboxylates: Explosive Properties and Thermal Hazards T2 - 12th Annual Symposium, Mary Kay O'Connor Process Safety Center "Beyond Regulatory Compliance: Making Safety Second Nature" Texas A&M University CY - College Station, TX, USA DA - 2009-10-27 PY - 2009 AN - OPUS4-20233 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Anka A1 - Wehrstedt, Klaus-Dieter T1 - Azodicarboxylates: Explosive properties and thermal hazards N2 - A large number of Azodicarboxylates and their derivatives are produced and used in the chemical industries. The versatile applications of these Azodicarboxylates in research institutes and in the chemical industries for chemical synthesis arouse additional hazards. The aim of this paper is to obtain a predication about the structure-response relationship regarding the explosive properties and the thermal hazards of different versatile used Azodicarboxylates. The substances were examined with the Differential Scanning Calorimetry (DSC). Furthermore, different laboratory test methods, based on the UN Recommendations on the Transport of Dangerous Goods, were applied to determine the explosive properties of the mentioned substances. T2 - 12th Annual symposium, Mary Kay O´Connor Process Safety Center "Beyond regulatory compliance: making safety second nature" CY - College Station, Texas, USA DA - 2009-10-27 KW - Azodicarboxylates KW - Thermal decomposition KW - Differential scanning calorimetry (DSC) KW - Explosive properties PY - 2009 SN - 978-0-692-00459-3 IS - Chapter "Explosion - I" SP - 192 EP - 202 AN - OPUS4-20278 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Berger, Anka A1 - Wehrstedt, Klaus-Dieter T1 - Azodicarboxylates: Explosive properties and DSC measurements N2 - A large number of azodicarboxylates and their derivatives are produced and used in the chemical industries. The versatile applications of these azodicarboxylates in research institutes and in the chemical industries for chemical synthesis arouse additional hazards. The intent of this paper is to obtain first knowledge about the structure–response relationship regarding the explosive properties and the thermal hazards of different versatile used azodicarboxylates. The substances are examined with the differential scanning calorimetry (DSC). Furthermore, different laboratory test methods, based on the UN Recommendations on the Transport of Dangerous Goods, are applied to determine the explosive properties of the mentioned substances. On the basis of the obtained results, the known influence of the nitrogen content within the molecule regarding their thermal behaviour could be confirmed. The measured heat of decomposition appeared to be proportional to the nitrogen content within the group of the aliphatic and the aromatic azodicarboxylates. To emphasize this dependency, further investigations should be done. The long term objective of this research is to develop structure–response relationships of the explosive properties and the thermal hazards originating from azodicarboxylates. KW - Azodicarboxylates KW - Thermal decomposition KW - Differential scanning calorimetry (DSC) KW - Explosive properties PY - 2010 DO - https://doi.org/10.1016/j.jlp.2010.06.019 SN - 0950-4230 SN - 1873-3352 VL - 23 IS - 6 SP - 734 EP - 739 PB - Butterworth CY - Guildford, Surrey AN - OPUS4-22652 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Berger, Anka A1 - Krüger, Simone A1 - Krause, Ulrich T1 - Chemisch-analytische Untersuchung von Brandprodukten aus verschiedenen Deponiefraktionen T2 - 4. Praxistagung Deponie 2010 CY - Hannover, Deutschland DA - 2010-11-30 KW - Recyclingstoffe KW - Zwischenlager KW - FTIR-Spektroskopie KW - Verschwelung KW - Rauchgasanalyse KW - Recycling materials KW - Intermediate storage KW - FTIR-spectroscopy KW - Smouldering KW - Analysis of smoke PY - 2010 SN - 978-3-86955-555-3 SP - 1 EP - 17(?) AN - OPUS4-22728 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -