Overview of Anaerobic Pyrolysis Technology for Sorted Municipal Solid Waste Organics

Anaerobic pyrolysis technology for sorted municipal solid waste organics, commonly referred to as pyrolysis gasification technology, represents an advanced solid waste thermal treatment method. Its core principle involves heating sorted and concentrated organic waste (such as food waste, paper, plastics, rubber, straw, wood, textiles, etc.) to specific temperatures (typically between 350°C and 800°C). Through thermochemical processes, complex reactions such as cracking, dehydrogenation, and polycondensation occur within the organic macromolecules, ultimately converting them into three high-value products: combustible gas (syngas), condensed liquid oil (which can also be directly exported as high-temperature gas), and solid carbon residue (biocarbon or carbon black). This technology aims to achieve the “three transformations” in municipal solid waste treatment: harmlessness, reduction, and resource utilization. Consequently, it is regarded as a more environmentally friendly disposal method.

As an emerging waste treatment technology, its unique process principles deliver significant comprehensive advantages in environmental benefits, resource utilization, and technical economics. Compared to traditional incineration, pyrolysis eliminates open-flame combustion, fundamentally altering the environment where pollutants form. Its core advantage lies in suppressing the generation of highly toxic dioxins at the source while effectively immobilizing heavy metals, significantly reducing secondary pollution risks. In terms of resource recovery, this technology converts waste into high-value energy and chemical feedstocks, enabling energy self-sufficiency and lowering operational costs. Its investment costs and operating expenses are significantly lower than incineration technology, making it particularly suitable for small-to-medium-sized, distributed waste treatment projects. It represents an effective technical solution for addressing “garbage encircling cities” and the imbalance in urban-rural waste management.

Jufeng Company independently masters core technologies including “waste zone pyrolysis,” “bidirectional fully mixed flue gas recirculation reuse,” and “pyrolysis waste heat power generation.” It has achieved modularized and localized processing. The R&D team, led by the company's “Jufeng Expert Group,” collaborates with Huazhong University of Science and Technology through a joint research group to continuously optimize pyrolysis processes and equipment. Related achievements have been included in China's 13th Five-Year Plan major science and technology projects.