摘要: |
The United States Coast Guard issued a Safety Alert November 27 warning of the danger of cargoes of wood pellets spontaneously combusting. It said that in a two-week period, two unmanned barges loaded with wood pellets had caught fire while waiting at a Mississippi River fleeting facility. No one was injured, but damage to the barges was extensive. While spontaneous combustion is not common, it can happen due to the binders and chemicals in the pellets, the alert said. The International Maritime Solid Bulk Cargoes Code notes that "wood pellets containing additives or binders may ferment over time if moisture content is over 15 percent, leading to generation of asphyxiating and flammable gases which may cause spontaneous combustion." Wood pellets in enclosed spaces can produce off-gases, including carbon monoxide, carbon dioxide and volatile organic compounds (VOCs). |