Niutech: Continuous Pyrolysis for Organic Solid Waste at Industrial Scale

Chemical Recycling | Continuous pyrolysis systems for organic waste, with over 30 material types processed

The barriers to pyrolysis at scale

Pyrolysis has long been viewed as a way to return difficult organic waste to the resource chain. But the technology has been hard to scale. Equipment tends to coke, dynamic sealing between feed and discharge is difficult, and pyrolysis products polymerize. Most systems run batch-wise, which limits industrial-scale, long-term stable operation.

Niutech (恒誉环保) has worked on pyrolysis for nearly 40 years. The team developed an industrial continuous organic waste pyrolysis system that runs safely and continuously. The technology and equipment have received a National Science and Technology Progress Award and hold over 100 domestic and international patents.

Continuous operation

Niutech's core capability is fully self-controlled industrial continuous pyrolysis. Unlike the batch equipment common in the industry, its system continuously feeds and discharges under oxygen-free or oxygen-lean conditions, with sealed operation that reduces secondary pollution risk. This supports the shift of solid waste disposal toward harmlessness, volume reduction, and resource recovery.

Material range

Niutech's technology covers over 30 types of organic solid waste and hazardous waste, including waste tires, waste plastics, oily sludge, tar residue, paint residue, and medical waste, plus metal ore reduction applications.

• Karamay, Xinjiang: Oilfield extraction leaves large volumes of oily sludge, occupying land and posing pollution risk. Niutech built what the company states is the world's largest single-unit industrial continuous pyrolysis project, with annual processing capacity over one million tons. The project recovers crude oil from the sludge, disposes of residue to standard, and reduces carbon emissions by 336,000 tonnes per year. It received the Xinjiang Science and Technology Progress First Prize.
• Zouping, Shandong: A national-level waste tire comprehensive utilization demonstration project. Waste tires are pyrolyzed into recycled oil, pyrolysis carbon black, steel wire, and combustible gas.

Overseas projects

• Denmark: A waste plastics project recognized by BASF, where pyrolysis products are used to make new plastics — chemical recycling from waste plastic to new plastic.
• Hungary: An EU-funded project certified by an EU-authorized body.
• Germany: Project successfully implemented.
• UK: A customer signed an order for a waste plastics pyrolysis production line worth approximately RMB 198 million.

Standards and certifications

Niutech is the first drafting unit for the national standards "Complete Production Equipment for Pyrolysis of Waste Rubber and Waste Plastics" and "Technical Specification for Pyrolysis of Waste Tires and Waste Rubber". It participates in drafting multiple national, industry, and group standards. It is a national-level specialized and sophisticated "little giant" enterprise. Its technology and equipment hold EU CE certification and continue to enter overseas projects.

About the exhibitor

Niutech is a globally operating Chinese STAR Market-listed company. It has focused on pyrolysis technology for over 30 years and is a global supplier of integrated pyrolysis solutions.

Booth: B1C65

At-a-glance

Niutech | Chemical Recycling | Continuous pyrolysis systems for organic waste, with over 30 material types processed