New technologies for generating electricity from agricultural waste using "mulch film incinerators" are lesser-known. Advanced waste-to-energy (WtE) incineration technologies are more common, but China's Fireprint company's low-temperature magnetic gas pyrolysis power generation system is designed specifically for agricultural mulch film straw gasification. This technology carbonizes waste to produce combustible gas, which in turn drives a generator to generate electricity. Key technologies in these modern systems include low-temperature pyrolysis technology for complete waste destruction, advanced air pollution control systems, and methods for recovering heat to generate electricity and other uses. Emerging technologies such as carbon capture aim to achieve a negative carbon footprint.
Advanced Pyrolysis Technology
Low-Temperature Pyrolysis:
Modern low-temperature magnetic gas pyrolysis maintains low temperatures (50-280°C) and generates no turbulence. The carbonization process occurs naturally through low-temperature precipitation, eliminating pollutants such as dioxins.
Generator and Boiler System:
The heat generated by the combustion of the combustible gas is used to generate electricity, and the remaining heat is used to generate steam in the boiler. This steam heat can also be recovered for other uses, such as heating nearby community facilities like swimming pools or botanical gardens.
Bottom ash from pyrolysis:
Pyrolysis produces an alkaline, powdered, negatively charged ash with a concentration of 1/200-400, which can be used as fertilizer for forest land.
Applications for Agricultural Waste
While "mulch incinerator" is not a clear, generic term for this technology, advanced pyrolysis technology is applicable to various types of waste, including agricultural waste, which can be a significant energy source.
Farm waste, such as yard waste and wood products, can serve as high-energy materials in waste-to-energy processes.
