Wood Biomass Torrefaction Plant - Servoday Group Torrefaction is the method where wood & biomass is heated in a low oxygen environment to a point where chemical changes start occurring. No one can argue that it has taken longer than expected for the wood-based torrefaction industry to develop, but it is widely acknowledged that torrefied wood pellets (TWP) have physical characteristics superior to white wood pellets (WWP), including higher energy density, higher bulk density, improved grindability and water resistance. Sample is new wood -"torrefied" Adirondack Spruce - This sample is from a "new" Adirondack top that has been Torrefied. SIMEC Biomass Pellets Torrefaction Plant is developed to convert densified “white” biomass pellets into “black” torrefied pellets. Not only does a torrefied top offer greater stability and tone, the thermo-curing process dramatically speeds up the natural aging of wood that results in a vintage-looking, golden-caramel hue. The supply of torrefied wood to the device is carried out mechanically and is aimed at keeping filled a tubular column open at the top located above the hearth so that the height occupied by the torrefied wood in the latter and the pressure loss of an airflow passing through it downwards are constant. The complete torrefaction plant is designed and built by Henan Sinovo Machinery Engineering Co. Ltd (SIMEC), while the torrefaction reactor and the process adopt the patented technology from our strategic partner Advanced Torrefabs Limited (ATF). … As it’s exposed to the Torrefaction process the cells close as the water and sap gets quickly released from the wood. True torrefaction—the elimination of volatiles without damaging structural cellulose—occurs within a range of temperature and duration of treatment that varies from one wood species to the next. Its wood that has been baked in an oxygen free environment. Stewart McDonald is selling, what they call, Torrefied Tonewood, for guitar makers (not sure about mandolin makers). At the right temperature and residence time, the end product resembles coal in color and physical characteristics. Torrefaction changes biomass properties to provide a better fuel quality for combustion and gasification applications. It has gotten its beautiful golden-caramel color and reflective shine. Under a microscope, torrefied wood looks much like wood that was naturally cured for many decades. I have a good friend who is a top mandolin maker who bakes his wood. Torrefaction of biomass, e.g., wood or grain, is a mild form of pyrolysis at temperatures typically between 200 and 320 °C. Torrefaction produces a relatively dry product, which reduces or eliminates its potential for organic decomposition.
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