Extraction of heat energy from biomass of wood or other organic matter involves drying and pyrolization followed by incineration and cracking in second reactor

摘要

An assembly extracts heat energy from a biomass or other organic mass. The assembly has a first reactor in which the biomass is first dried and then pyrolyzed, prior to discharge through a shaft or chute to a second reactor and mixing with a gas. The products are stirred by vortices, incinerated, gasified and then cracked. The product gas is discharged from an outlet in the upper part of the second reactor. The first indirectly heated reactor has a cylindrical, round or rectangular cross section, and is inclined at 10-40 degrees to the vertical. The two reactors share a worm drive feed extending the full length. The second reactor has a cylindrical, round or rectangular cross section. The passage between the first and second reactors is small in comparison with the cross-sectional area of the first reactor. Both reactors have a fireclay lining. The chute or passage is fabricated of high-temperature ceramics or stainless steel, and discharges into the upper part of the second reactor in which there is a dust trap. An Independent claim is included for a process of using the above assembly.