A power generation system in which the combustion heat of hydrocarbon gas is used to heat the steam for power generation; at the same time, the exhaust heat thereof is used to dry and thy-distill low rank coal. The power generation system includes: a dry distillation step for dry-distilling low rank coal of high moisture content; a cooling step for cooling the fixed carbon obtained in the dry distillation step; a combustion step in which hydrocarbon gas obtained in the dry distillation step is used as the main fuel; and a power generation step in which there are provided a power generator moving a steam turbine by main steam generated in the combustion step and a condenser.

A power generation system in which the combustion heat of hydrocarbon gas is used to heat the steam for power generation; at the same time, the exhaust heat thereof is used to dry and thy-distill low rank coal. The power generation system includes: a dry distillation step for dry-distilling low rank coal of high moisture content; a cooling step for cooling the fixed carbon obtained in the dry distillation step; a combustion step in which hydrocarbon gas obtained in the dry distillation step is used as the main fuel; and a power generation step in which there are provided a power generator moving a steam turbine by main steam generated in the combustion step and a condenser.

A continuous process and apparatus for treating dried coal and coal char to promote passivation of the reactive carbon particles by forming a protective oxide coating and simultaneously adding moisture to rehydrate said particles. The passivation process is conducted in a novel apparatus providing for the staged control of the reaction temperature and the staged introduction of both oxygen and moisture. The fluidized bed apparatus has internal in-bed cooling means embedded within the fluidized coal or coal char particles so as to remove the heat energy as it is released by virtue of the exothermic passivation reactions.

A continuous process and apparatus for treating dried coal and coal char to promote passivation of the reactive carbon particles by forming a protective oxide coating and simultaneously adding moisture to rehydrate said particles. The passivation process is conducted in a novel apparatus providing for the staged control of the reaction temperature and the staged introduction of both oxygen and moisture. The fluidized bed apparatus has internal in-bed cooling means embedded within the fluidized coal or coal char particles so as to remove the heat energy as it is released by virtue of the exothermic passivation reactions.

The present invention provides a system and a method for rapid pyrolysis of coal. The system comprises: a rapid pyrolysis reactor, which comprises: a reactor body defining a reaction space that forms a dispersion region, a pyrolysis region, and a discharge region from top to bottom; said dispersion region comprises: a material distributor; a coal inlet arranged above the material distributor; a material distribution gas inlet connected to the material distributor; said pyrolysis region comprises: multilayer regenerative radiant tubes, which are distributed at an interval in the height direction of the reactor body in the pyrolysis region, and each layer of regenerative radiant tubes consists of a plurality of regenerative radiant tubes distributed at an interval in the horizontal direction; said discharge region comprises: a semi-coke outlet; a plurality of pyrolysis gas outlets, which are arranged in the dispersion region and/or the pyrolysis region respectively; a slag cooler connected to the semi-coke outlet, and a cooling device connected to the pyrolysis gas outlet.

The present invention provides an apparatus for rapid pyrolysis reaction, which comprises: a reactor, which comprises a reactor body defining a reaction space that forms a dispersion region, a pyrolysis region, and a discharge region from top to bottom; multilayer-regenerative radiant tubes, which are distributed at an interval in the height direction of the reactor body in the pyrolysis region, and each layer of regenerative radiant tubes consists of a plurality of regenerative radiant tubes distributed at an interval in the horizontal direction, a material distributor; a material inlet arranged in the dispersion region above the material distributor; a material distribution gas inlet, which is arranged in the dispersion region and communicates with the material distributor so as to utilize a material distribution gas to blow out the material in the material distributor into the dispersion region, so that the material falls into the pyrolysis region uniformly; a plurality of pyrolysis gas outlets, which are arranged in the dispersion region and/or the pyrolysis region respectively; and a semi-coke outlet arranged in the discharge region.

A fixed carbon production device is provided with: a quench chamber for collecting fixed carbon; a dry distillation furnace which is erected and fixed in the quench chamber and into which raw material coal is fed; a dry distillation unit which is polygonal in horizontal cross-section and is partitioned by a separating wall which partitions the inside of the dry distillation furnace in the vertical direction; a dry distillation mini-furnace which is polygonal in horizontal cross-section and which is partitioned by a partition which partitions the inside of the dry distillation unit in the vertical direction; a pipe heating means which is arranged on the separating wall of the dry distillation unit and the partition of the dry distillation mini-furnace and which dry-distills the raw material coal; and a collection path for collecting fixed carbon collected in the quench chamber.

A fixed carbon production device is provided with: a quench chamber for collecting fixed carbon; a dry distillation furnace which is erected and fixed in the quench chamber and into which raw material coal is fed; a dry distillation unit which is polygonal in horizontal cross-section and is partitioned by a separating wall which partitions the inside of the dry distillation furnace in the vertical direction; a dry distillation mini-furnace which is polygonal in horizontal cross-section and which is partitioned by a partition which partitions the inside of the dry distillation unit in the vertical direction; a pipe heating means which is arranged on the separating wall of the dry distillation unit and the partition of the dry distillation mini-furnace and which dry-distills the raw material coal; and a collection path for collecting fixed carbon collected in the quench chamber.

An apparatus for the continuous production of biochar by pyrolysis of biomass under exclusion of oxygen is provided. The apparatus includes a vertically mounted reactor having a reactor interior which is defined by a reactor shell and which has an upper feed region, a lower removal region and a process space located therebetween, a feed device for feeding biomass to the upper feed region, a removal device for removing biochar from the lower removal region, and a heating device positioned in the reactor interior. The heating device includes a plurality of outer heating rods vertically arranged in the vicinity of the reactor shell and distributed around the circumference of the reactor, and at least one inner heating rod vertically arranged in or in the vicinity of the center of the reactor interior. A control device is provided for controlling the operation of the apparatus. The control device controls the actuation of the feed device and the removal device and regulates the temperature of the heating rods in dependence on temperatures measured at distributed locations in the reactor interior in order to adjust the holding time and pyrolytic conversion of the biomass in dependence on the respective operating conditions, ambient conditions and the particular biomass used.

An apparatus for the continuous production of biochar by pyrolysis of biomass under exclusion of oxygen is provided. The apparatus includes a vertically mounted reactor having a reactor interior which is defined by a reactor shell and which has an upper feed region, a lower removal region and a process space located therebetween, a feed device for feeding biomass to the upper feed region, a removal device for removing biochar from the lower removal region, and a heating device positioned in the reactor interior. The heating device includes a plurality of outer heating rods vertically arranged in the vicinity of the reactor shell and distributed around the circumference of the reactor, and at least one inner heating rod vertically arranged in or in the vicinity of the center of the reactor interior. A control device is provided for controlling the operation of the apparatus. The control device controls the actuation of the feed device and the removal device and regulates the temperature of the heating rods in dependence on temperatures measured at distributed locations in the reactor interior in order to adjust the holding time and pyrolytic conversion of the biomass in dependence on the respective operating conditions, ambient conditions and the particular biomass used.