Henan Jufeng, as the core technical unit for the Ministry of Science and Technology's 13th Five-Year Plan Key R&D Program on “Sanitary Disposal of Municipal Solid Waste,” was invited to collaborate with Huazhong University of Science and Technology in completing this program. Additionally, after three years of iterative experimentation, the company successfully developed subcritical hydrolysis technology for waste in 2021. This technology converts various organic wastes (such as kitchen scraps, animal manure, sludge, rural straw, household waste, industrial organic waste, garden waste, market waste, and other organic materials) into organic fuel coal and combustible gas (“synthetic natural gas”), achieving the goals of “zero pollution, harmless treatment, and full utilization.” Furthermore, the company leverages its research achievements in subcritical hydrothermal low-molecularization and fulvic acid extraction to enhance the added value of hydrolysis products.

Subcritical hydrolysis technology applied to sorted organic components from municipal solid waste represents an efficient and environmentally friendly method for harmless resource utilization. This process converts organic matter into high-value energy and products under specific conditions. Using subcritical water (typically at temperatures of 200-370°C and pressures of 0.5-3 MPa) as the reaction medium, this technology hydrolyzes and breaks macromolecular bonds within a sealed system. It processes sorted organic waste—such as kitchen scraps, animal manure, sludge, agricultural/forestry straw and wood waste, and various organic residues—ultimately converting them into usable products. This technology mixes organic waste with subcritical water, utilizing high-temperature and high-pressure conditions to separate harmful substances from organic matter, thereby converting it into reusable resources. It effectively processes various hazardous organic wastes, including chemical waste, agricultural waste, and municipal solid waste. During hydrolysis, organic matter in the waste decomposes into reusable resources such as combustible gas, water, carbon dioxide, organic coal, and fertilizer. simultaneously decomposing harmful substances into harmless byproducts, thereby achieving resource recovery from waste.

Subcritical hydrolysis technology converts waste into “organic coal” within approximately 15 minutes, offering multiple advantages including reduction, harmlessness, resource recovery, low carbon footprint, and decentralized processing. It has been jointly recommended by four national ministries as the preferred treatment route for organic solid waste in small and medium-sized towns.