Biomass Pyrolysis Reactor With Cyclone Char Separation

The patent changes the thermal conversion parameters by using pyrolysis and gasification at controlled temperature ranges instead of conventional combustion. The system maintains temperatures below the eutectic point of ash-forming materials through controlled heating rates and oxygen limitation, transforming the harmful combustion process into a beneficial thermal decomposition process that prevents slagging while still producing energy.

The patent utilizes phase transitions of biomass components during pyrolysis, where organic matter decomposes into volatile gases and char at specific temperature ranges. This phase transition approach allows energy recovery through gasification while keeping the system temperature controlled to prevent ash melting and slag formation, resolving the contradiction between energy production and slagging prevention.

The patent replaces the mechanical filtration system (bag filters) with a thermal field-based separation system. By controlling the temperature and oxygen concentration in the reactor, the system naturally separates particulates through thermal decomposition and gasification processes, eliminating the need for mechanical filters that are prone to damage and inefficient at removing fine particulates.

The patent employs fluidized bed technology where gas flow through the bed materials creates a fluid-like state that enhances mixing and heat transfer. This pneumatic approach allows for effective particulate removal through the fluidized bed dynamics and subsequent cyclone separation, replacing the problematic bag filter system with a more reliable gas-solid separation mechanism.