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July Chementator Briefs

By Gerald Ondrey |

  Torrefaction of biomass Last month, the Energy Research Center of the Netherlands (ECN; Petten; www.ecn.nl) and Vattenfall AB (Stockholm, Sweden; www.vattenfall.com) established a partnership to scale up ECNs BO2 technology — a process for upgrading biomass into a high-grade solid fuel. Vattenfall will support ECN to further develop the technology, including testing the process on a large scale and prepare a technical design of the specifications for a demonstration plant. The BO2 process combines a patented torrification technology with pelletizing or briquetting to convert biomass (wood cuttings and agricultural waste) into an easily transported, solid fuel that retains 90% of the biomass energy content. Torrification involves heating biomass in an O2-free atmosphere to 200–300°C (similar to roasting coffee beans), which transforms the material into a form that can be ground and stored. ECN has demonstrated BO2 in a 50-kg/h pilot plant, achieving more than 100 h of continuous operation.     Fast pyrolysis Ensyn Technologies Inc. (Ottawa, Ont., Canada; www.ensyn.com) and Tolko Industries Ltd. (Vernon, B.C., www.tolko.com) have formed a partnership to build what is claimed to be the worlds largest…
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