The influence of oxygen concentration on the composition of gaseous products occurring during the self-heating of coal and wood sawdust |
| |
| Institution: | 1. VSB – TU Ostrava, Faculty of Safety Engineering, Lumirova 13, 700 30 Ostrava, Vyskovice, Czech Republic;2. University of Sheffield, Department of Chemical and Biological Engineering, Mappin Street, Sheffield S1 3JD, United Kingdom;1. Division of Epidemiology and the National Center for Antibiotic Resistance and Infection Control, Tel Aviv Sourasky Medical Center, Tel Aviv, 64239, Israel;2. AstraZeneca, Infection GMed, Global Medicines Development, Alderley Park, Macclesfield, UK;3. AstraZeneca, Infection GMed, Global Medicines Development, Waltham, MA, USA;1. Key Laboratory of Gas and Fire Control for Coal Mines, China University of Mining and Technology, Xuzhou 221116, China;2. School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China;1. Department of Building Science, Tsinghua University, Beijing, 100084, China;2. Beijing Urban Construction Design & Development Group Co. Limited, Beijing, 100084, China;3. Institute for Health and Social Policy and Department of Epidemiology, Biostatistics & Occupational Health, McGill University, Montréal, QC, Canada;4. Institute on the Environment, University of Minnesota, St. Paul, MN, USA;5. Department of Civil and Environmental Engineering, Colorado State University, Fort Collins, CO, USA;1. University of Newcastle, UK;2. University of Warwick, UK;1. Department of Chemistry, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran;2. Young Researchers and Elite Club, Science and Research Branch, Islamic Azad University, Tehran, Iran;3. Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran, Iran;1. School of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi 710054, PR China;2. Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology, Douliou, Yunlin 64002, Taiwan;3. Faculty of Mining and Geoengineering, AGH University of Science and Technology, Cracow, PL 30059, Poland |
| |
| Abstract: | This article deals with an assessment of the influence of oxygen concentration on the composition and amount of combustion products generated in the course of heating coal particles and wood sawdust at 150 °C. This was done both with normal air and at 15% oxygen in the air in an isothermal furnace. The generated gases were analyzed by a Fourier Transform infrared spectrometer. Results show that under both conditions, the same substances are formed: water, carbon dioxide, carbon monoxide and aliphatic hydrocarbons. However, the quantities changed. At 21% oxygen, the concentrations of carbon monoxide and methane were higher than at 15% oxygen both in coal and wood. The oxygen concentration was also found to affect the rates of release of CO and CO2. The rate of release of CO was higher at 21% oxygen, but that of CO2 was higher at 15%, indicating two different mechanisms. In all cases, the concentrations of these gases were higher for coal than for wood. The results have implications for the specification of safe conditions of storage of coal and wood substances and the selection of safety measures. |
| |
| Keywords: | Coal Wood sawdust Gaseous products Self-heating Oxygen concentration |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
