Pyrolysis/Gasification System For use in a Method of Carbon Sequestration

A control method for controlling an apparatus comprising a carbon negative emission system, a nitrogen oxide ultra-low emission system, an air supply device and a flow control module, the air supply device being is in communication with the carbon negative emission system via a first pipeline and being in communication with the carbon negative emission system and the nitrogen oxide ultra-low emission system via a second pipeline, wherein the control method comprises:

• producing, with the carbon negative emission system, a pyrolysis coupling partial gasification reaction of a biomass or producing a pure pyrolysis reaction of the biomass to generate inorganic carbon and pyrolysis gas/gasification gas;
• the inorganic carbon being usable for returning to field treatment or making carbon-based materials to realize negative emission of carbon;
• mixing, with the nitrogen oxide ultra-low emission system, combustion of fuel with the pyrolysis gas/gasification gas to remove nitrogen oxides generated by combustion of the fuel;
• providing, with the air supply device a pyrolysis agent/gasification agent required for biomass pyrolysis coupling partial gasification, the pyrolysis gas/gasification gas entering the nitrogen oxide ultra-low emission system via the second pipeline, and mixing combustion with the fuel in the nitrogen oxide ultra-low emission system to reduce and remove the nitrogen oxide;
• and
• controlling, with the flow control module, a flow ratio of the pyrolysis agent/gasification agent entering the carbon negative emission system and flow of the pyrolysis gas/gasification gas and air entering the nitrogen oxide ultra-low emission system.