초록 ▼

A gasification system for biomass fuel. The system includes a bulk biomass feeder in which biomass fuel is stored and from which biomass fuel is supplied to the system. A pneumatic conveyor system is employed that transports the biomass fuel from the feeder to a high pressure feed tank. Once deposit

A gasification system for biomass fuel. The system includes a bulk biomass feeder in which biomass fuel is stored and from which biomass fuel is supplied to the system. A pneumatic conveyor system is employed that transports the biomass fuel from the feeder to a high pressure feed tank. Once deposited in the feeder, the pressure on the fuel is raised and maintained throughout the balance of the gasification process. From the feeder, the fuel travels on a variable speed pressurized conveyance and is dispensed in a controlled and regulated manner to the reactor vessel that takes the form of a fluidized bed reactor. The fuel is gasified in the reactor and the resulting gas and ash mixture is separated. At a cyclone, most of the suspended ash is removed from the mixture. After the cyclone, the gas may be is further filtered before transmission to an end use. The system may optionally be automated by computer control.

대표청구항 ▼

A method for gasifying biomass into combustible gas in a biomass gasification system; said method comprising: depositing biomass fuel into a high pressure feed tank pressurizable above atmospheric pressure; increasing the pressure within said high pressure feed tank to a processing pressure required

A method for gasifying biomass into combustible gas in a biomass gasification system; said method comprising: depositing biomass fuel into a high pressure feed tank pressurizable above atmospheric pressure; increasing the pressure within said high pressure feed tank to a processing pressure required within the gasification system; conveying said biomass fuel under pressure from the high pressure feed tank by a variable speed conveyance assembly; depositing said biomass fuel from said variable speed conveyance assembly into a gas-blown fluidized bed reactor; gasifying said biomass in said reactor; and producing combustible gas from said biomass.