The invention belongs to the technical field of
biomass energy conversion, and particularly relates to a
coupling system based on
biomass fermentation coupling pyrolysis gasification. Comprising a
fermentation gasification device, an outlet of the
fermentation gasification device is connected with a
solid-liquid separation mechanism, a fermentation residue outlet of the
solid-liquid separation mechanism is connected with a fermentation residue
drying tank, a first chain plate conveyor is arranged below the fermentation residue
drying tank, and the other end of the first chain plate conveyor is connected with a
biomass mixing container; a fermentation liquor outlet of the
solid-liquid separation mechanism is connected with a fermentation liquor
storage tank through a pipeline, the fermentation liquor
storage tank is connected with a reaction tank through a pipeline with a conveying pump, an outlet of the reaction tank is connected with a
drying container through a second chain plate conveyor, and the drying container is communicated with a biomass mixing container. And an outlet of the biomass mixing container is connected with an inlet of the
pyrolysis gasification device through a third chain plate conveyor. According to the invention, the
utilization rate of biomass resources can be improved, and the maintenance
workload of equipment is reduced, so that the reliability of the whole gasification
system is improved.