Devices and Methods for a Pyrolysis and Gasification System for Biomass Feedstock

Abstract

A pyrolysis and gasification system and method convert a biomass feed stock to bio-char and synthesis gas. In one embodiment, the pyrolysis and gasification system includes a reactor for producing a synthesis gas and bio-char from a biomass feedstock. The system includes a flow measurement device and an air distribution system, which provides a fluidized bed in the reactor. The system also includes a cyclone assembly. The cyclone assembly removes the bio-char from the synthesis gas.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]This invention relates to the field of biomass conversion and more specifically to the field of devices and methods facilitating pyrolysis and gasification of biomass feedstock.[0003]2. Background of the Invention[0004]Methods for using energy from biomass have conventionally included combustion of the biomass with the heat energy used to produce steam. The steam may then be used to produce electric power. Drawbacks to such conventional methods include slagging and fouling that occur with biomass fuels containing low eutectic point (i.e., melting point) ash. For instance, the ash melts at relatively low temperatures and sticks to surfaces, which may impact the sustainability of the thermal conversion system. Developments have included using bag filters to remove char by filtration. For such developments, the gas temperature is cooled to a temperature at which the temperature of the gas is below the temperature that may ...

AI Technical Summary

Benefits of technology

The solution enhances biomass conversion by reducing slagging and fouling, improving particulate removal efficiency, and optimizing fluidization and char measurement, leading to a more sustainable and efficient biomass conversion process.

Problems solved by technology

Drawbacks to such conventional methods include slagging and fouling that occur with biomass fuels containing low eutectic point (i.e., melting point) ash.

For instance, the ash melts at relatively low temperatures and sticks to surfaces, which may impact the sustainability of the thermal conversion system.

Drawbacks to such developments include inefficiencies with the performance of the bag filter for removing the smaller particulates.

Additional drawbacks include inefficient methods for measuring the feed and removing char.

Further drawbacks include inefficient methods for fluidizing the bed.

However, drawbacks to such conventional methods include pressure drop.

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