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Compounds Produced by the Pyrolysis of Powders and Dusts Present in the Alimentary Industry
DTU Technical University of Denmark, Denmark.
RISE Research Institutes of Sweden, Safety and Transport, Safety.ORCID iD: 0000-0002-4687-9554
RISE Research Institutes of Sweden, Safety and Transport, Safety. DTU Technical University of Denmark, Denmark.ORCID iD: 0000-0002-6120-2461
2023 (English)In: Combustion Science and Technology, ISSN 0010-2202, E-ISSN 1563-521X, Vol. 195, no 3, p. 419-Article in journal (Refereed) Published
Abstract [en]

Under certain conditions dust explosions occur in the alimentary industry. Following ATEX and other guidelines have not eliminated accidents. Therefore, more knowledge is needed. The current work delivers experimental results describing phase transitions and decomposition of dusts. Dusts from wheat flour, chili powder, corn starch, milk powder, cocoa powder, and by-product of grain are investigated. The temperature of pyrolisation has been identified using TGA to be in the range [250°C, 600°C] in air and [300°C, 450°C] in nitrogen. It was found that the compositions of the pyrolysis gases depend on temperature. Carbon monoxide, carbon dioxide, methane, and hydrogen were the main contributors to the pyrolysis gases. The distributions are described with a polynomial or Gaussian fit. The current paper proposes coefficients for Gaussian polynomials expressing the concentration for the four primary pyrolysis gases. 

Place, publisher, year, edition, pages
Taylor and Francis Ltd. , 2023. Vol. 195, no 3, p. 419-
Keywords [en]
biomass, combustion, Dust, explosion, Pysolysis, Carbon dioxide, Carbon monoxide, Dairies, Pyrolysis, Cocoa powder, Corn starch, Dust explosion, Gaussian fits, Gaussian polynomials, Milk powder, Wheat flours
National Category
Environmental Sciences
Identifiers
URN: urn:nbn:se:ri:diva-56018DOI: 10.1080/00102202.2021.1956911Scopus ID: 2-s2.0-85112316574OAI: oai:DiVA.org:ri-56018DiVA, id: diva2:1588843
Available from: 2021-08-30 Created: 2021-08-30 Last updated: 2023-06-05Bibliographically approved

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Otxoterena Af Drake, PaulDederichs, Anne

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