Experiments were performed on an atmospheric pressure,
autothermal, and fluidized bed co-gasification system. Fig. 1 presents
the schematic of the co-gasification system, which mainly
includes an autothermal fluidized bed gasifier, two separated
feeders (biomass and coal), a high-temperature cyclone separator, a
PID temperature controller, a tube type heat exchanger, two wet
scrubbers, a bell-type gas holder, a chimney, and a root blower. As
shown in Fig.1,1-1 is the air control valve (solenoid valve); 1-2 is the
flue control valve (pneumatic valve); 2-1 is the steam control valve
(solenoid valve); and 2-2 is the gas control valve (pneumatic valve).