On the pilot-scale test run device of a pressurized fluidized bed with a thermal input of 1 MW,an experimental study of pressurized combustion has been conducted of the semi-coke obtained from the partial gasification of coal.

In this paper the emphasis is laid on the experimental investigation, description of the influences of bed temperature, O 2 level and operating pressure on emission of N 2O in a coal-fired pressurized fluidized bed combustor(PFBC).

Preparation of fuel and transport system for coal fired pressurized fluidized bed always needs pneumatic method for feeding the fuel into the pressurized tank and then to the furnance.

The Development in the Investigation on Wet Feed Technology of PFBC;

The successful commisioning of 70MW PFBC-CC has laid foundations for the large-capacity ones.

Numerical simulation study is conducted for a pressurized spouted fluidized bed coal carbonizer, in which hydrodynamics of pressurized spouted fluidized bed, chemical reactions and energy balance are taken into account.

The specific feature of pressurized fluidized bed combustion (PFBC) technology itself has led to the pneumatic transport technology becoming an effective means of continuous and stable feeding and discharge of solids for the above cited technology.