Pyrolysis and plasma gasification waste-to-energy

Pyrolysis and plasma gasification are both advanced waste-to-energy technologies. Pyrolysis is the thermal decomposition of waste in the absence of oxygen to produce energy and useful products. Plasma gasification uses ionized gas at extremely high temperatures to convert waste into syngas and other useful substances. Both techniques are used for solid waste management and energy recovery. They are not used for rare earth extraction, natural gas extraction, or hydrogen fuel cell production as primary applications. > Pyrolysis and plasma gasification = waste conversion to energy. Answer: (d).