NOVELTY - Processing of wood raw material or similar fuel substrate (1) comprises dehydrating and preparing the material for the generation of heat, and treating the material by addition of quicklime (6). Water is extracted from the moist fuel substrate by the addition of quicklime and a fuel substrate with a higher heat value is made available. The fuel substrate that is processed to a small-piece or particulate structure is mixed with the quicklime. The hydrated lime formed during the mixing or the reaction time is removed from the mixed fuel substrate.    USE - Used for the processing of wood raw material or similar fuel substrate.    ADVANTAGE - The processing of wood raw material improves uniformly high drying degree of the wood raw material in small technical expenditure.    DETAILED DESCRIPTION - Processing of wood raw material or similar fuel substrate (1), comprises dehydrating and preparing the material for generation of heat, and treating the material by addition of quicklime (6). Water is extracted from the moist fuel substrate by the addition of quicklime and a fuel substrate with a higher heat value is made available. The fuel substrate that is processed to a small-piece or particulate structure is mixed with the quicklime. The hydrated lime formed during the mixing or the reaction time is removed from the mixed fuel substrate. After a specific reaction time, a part of the added quicklime is separated from the fuel substrate- /quicklime mixture. The fuel substrate available as wood raw material in the form of wood chips, pellets or a similar product structure with a large surface area is mixed with the quicklime. The wood raw material is dehydrated and added in a following mixing and/or transfer phase (4) to the quicklime that partly deposits on the fuel substrate. Less than 3-5% of quicklime in the form of batches is added to the fuel substrate mixture, related to its total weight. The respective partial quantities of the quicklime in the non-hydrated form and/or the partial quantities of the hydrated lime formed from the quicklime are separated from the mixture by a filtration procedure. The dehydration state of the fuel substrate, which is composed of the wood raw material, in the mixture is altered by varying the quantity of the added quicklime. The fuel substrate contained in the mixture is adjusted in its dehydrated state to moisture content of 8%. The fuel substrate processed by the addition of quicklime is further processed to a solid molded piece by means of processing steps that are known for the manufacture of pressed lime sandstones. The mixture produced from fuel substrate and quicklime is compacted to a wood briquette containing partial quantities of quicklime as well as partial quantities of dehydrated lime. The mixture is compacted directly after the mixing process, so as to utilize the heat from the temperature increased during the mixing process.    INDEPENDENT CLAIMS are also included for the following:    (1) a device for above process;    (2) a fuel substrate; and    (3) a fertilizer.    DESCRIPTION OF DRAWING(S) - The drawing shows a device for mixing of wood raw material or similar fuel substrate and quicklime:    Wood raw material or similar fuel substrate; (1)    Mixing- and/or transfer phase; (4)    Quicklime; (6)    Mixing unit; (15)    Silo. (16)