Fixed-bed gasification of solid, mechanically compacted, fine-grained and/or pulverized fuels e.g. tar with oxygen and water vapor-containing gasification agents using fixed-bed gasifier with head-side supply of coarse-grained fuel

摘要

The method for fixed-bed gasification of solid fuel with oxygen and water vapor-containing gasification agents using a fixed-bed gasifier equipped with a head-side supply unit to supply coarse-grained fuel, a raw gas flue, an ash drain or slag bath flue, a supply for gasification agents and a fixed bed, where the fuels are mechanically compacted, fine-grained and/or pulverized fuels without intermediate storage in the fixed bed gasifier to be injected into the fixed bed below the surface and gasified with the coarse fuels, is claimed. The method for fixed-bed gasification of solid fuel with oxygen and water vapor-containing gasification agents using a fixed-bed gasifier equipped with a head-side supply unit to supply coarse-grained fuel, a raw gas flue, an ash drain or slag bath flue, a supply for gasification agents and a fixed bed, where the fuels are mechanically compacted, fine-grained and/or pulverized fuels without intermediate storage in the fixed-bed gasifier to be injected into the fixed bed and gasified with the coarse fuels, is claimed. Condensable vapor is used for mechanical compaction of fine-grained and/or dust-like fuels are injected in secondary fuel inputs distributed on a secondary input plane over an outer perimeter of the gasifier. An independent claim is included for a device for gasification of solid fuel with oxygen and water- vapor-containing gasification agents.