Lianhong Xinke Successfully Commences Production of World's First 50,000-Ton PPC Plant
On May 29, 2026, a key milestone was achieved in Levima Green’s integrated new energy materials and biodegradable materials project under Levima Advanced Materials: the world’s first 50,000-ton-per-year industrial-scale carbon dioxide-based polypropylene carbonate (PPC) plant was successfully fully commissioned, completed the entire process flow in a single start-up, and produced qualified products.
The newly commissioned PPC unit adopts a CO₂-based biodegradable material process technology jointly developed by the company and its partners, filling the global gap in 50,000-ton-scale PPC industrial production facilities. Using the company’s self-produced propylene oxide and carbon dioxide as raw materials, the PPC unit delivers significant carbon sequestration benefits while offering both economic value and environmental advantages. The product features excellent balance of rigidity and toughness, good barrier properties, high transparency, and outstanding water retention and moisture conservation performance. It is an ideal material for disposable films and can be fully biodegraded, helping reduce “white pollution.”
Four years of hard work, from the laboratory to ten-thousand-ton industrialization.
Since 2022, the company has initiated the industrial scale-up of PPC technology. Over the past four years, the team has had to carry out a comprehensive set of tasks—including process route reconfiguration, equipment selection and verification, and control scheme design—without any mature cases or operational experience to reference. To this end, the team has continued to innovate, becoming the first to complete laboratory and pilot-scale validation, and then steadily advancing to an industrial scale of ten-thousand-ton level. Through ongoing optimization of process stability, product consistency, and operational reliability, the team ultimately achieved a breakthrough from laboratory parameters to ten-thousand-ton industrial production. This not only enhanced the company’s capabilities in collaborative innovation and technology transfer, but also contributed to advancing industry technology and the development of the biodegradable materials sector.
Starting from scratch, overcoming multiple key technical challenges.
In the technology scale-up phase, the team resolved issues related to process scale-up stability and product quality consistency through simulation calculations, parameter validation, and equipment verification.
During the equipment installation and commissioning phase, the team completed the calibration and integrated commissioning of thousands of instruments and control loops, addressing the challenges posed by a large number of non-standard equipment units and complex automation control systems.
During the commissioning phase, in response to challenges such as complex reaction systems and the integration of multiple interconnected systems, the team concentrated its technical expertise on overcoming key technical difficulties, including catalyst activity control, high-viscosity material transfer, and supercritical reaction system control, thereby achieving stable operation of the unit.
On May 21, the reactor was charged with materials.
On May 25, four batches of slurry were produced continuously.
On May 27, the coagulation system and extrusion pelletizing were started up.
At 13:55 on May 29, qualified PPC products were produced.
As a national-level “Green Factory,” Levima Advanced Materials has always adhered to innovation-driven development and actively explored green and low-carbon development paths. It has formed four major business segments: new energy materials, biomaterials, electronic materials, and specialty materials, and has developed a series of green products and green technologies, including photovoltaic film materials, new energy battery materials, and PLA biodegradable materials. The successful commissioning of the PPC facility will help further enhance the company’s development in terms of innovation and sustainability, enrich its product portfolio, and strengthen its core competitiveness in the biomaterials sector.
Next, Levima Advanced Materials will continue to pursue green, high-end, differentiated, and refined development, continuously optimize plant operations, advance technological progress and application expansion, steadily improve development quality, and better serve the broader agenda of green and low-carbon development.
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