Chinese Chemical Producer Begins Operations at New Propylene Oxide Complex

Sustainable Production Chinese Chemical Producer Begins Operations at New Propylene Oxide Complex

2023-09-06 Source: Press release Evonik 2 min Reading Time

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Qixiang Tengda, a major chemical firm in China, has started sustainable production of propylene oxide at its new complex in China. Evonik and thyssenkrupp Uhde technologies have been used for the project.

Sustainable production of propylene oxide begins at Qixiang Tengda’s new HPPO complex in China. (Source: Evonik) — Sustainable production of propylene oxide begins at Qixiang Tengda’s new HPPO complex in China.
(Source: Evonik)

Zibo City/China – Operations have begun at leading chemical producer Qixiang Tengda’s new propylene oxide complex in Zibo City, China, using technology from Evonik and thyssenkrupp Uhde. The technologically integrated setup offers significant ecological and economic benefits compared to conventional production methods for propylene oxide.

With the capacity to produce 300,000 tons of propylene oxide each year, the state-of-the-art complex involves two main plants: One is a world-scale HPPO facility to synthesize propylene oxide directly from hydrogen peroxide using a method licensed from Evonik and thyssenkrupp Uhde. The other is a new hydrogen peroxide mega plant licensed from Evonik to provide the raw material directly on-site. Evonik is also supplying its catalyst specifically designed for the process.

HPPO, or “hydrogen peroxide to propylene oxide,” is an efficient propylene oxide production method developed by Evonik and thyssenkrupp Uhde. Through HPPO, propylene oxide can be synthesized directly from hydrogen peroxide without generating any co-products other than water. It is enabled by a catalyst developed and continuously improved by Evonik specifically for this purpose. Through this combination of streamlined chemical process and high-performance catalyst, HPPO slashes energy and resource use, saves emissions, reduces costs, and avoids unwanted co-products compared to conventional propylene oxide production.

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The reduced environmental impact of this setup is particularly relevant as global demand for propylene oxide is growing steadily: The chemical is needed to manufacture a wide range of daily-use products, ranging from thermal insulation to furniture cushioning and sports equipment. With its annual production capacity of 300,000 tons, the new Qixiang Tengda facility aims to serve China’s strong market demand for propylene oxide.

“Our goal was to build an efficient propylene oxide plant by using the most sustainable process technologies and with Evonik and thyssenkrupp Uhde, we found the right partners to achieve this goal,” said Che Chengju, General Manager of Qixiang Tengda.

Design and construction of the Qixiang Tengda facility began in the second half 2019 after the three partners signed licensing and supply agreements.

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