Propylene oxide industrial demonstration plant produced by hydrogen peroxide method successfully started up

Recently, Changling Refining & Chemical's 100,000-ton/year hydrogen peroxide-based propylene oxide industrial demonstration plant successfully produced polymer-grade propylene oxide with a purity of 99.96%. Congratulations to the technical indicators of the device for reaching the international advanced level. my country thus broke the monopoly of foreign technology and became the third country in the world to fully master this emerging chemical technology.

The device adopts Sinopec's proprietary hydrogen peroxide process propylene oxide complete technology. So far, 31 invention patents have been applied for, including 7 foreign patents, 5 of which have been authorized, and 24 domestic patents, of which 21 have been authorized. The device was put into trial operation on December 6, 2014, and the whole process was completed on the same day. After optimization, the polymer-grade propylene oxide product was produced on December 21, achieving "safety, environmental protection, high efficiency, and legal" successful start-up at one time.

Academician Shu Xingtian of the Chinese Academy of Engineering went to the site to guide the commissioning and commissioning of the device. He said: "The hydrogen peroxide process propylene oxide technology independently developed by Changling is an innovation in heat combination, material combination and catalyst. The start of the device marks the These innovations are embodied and demonstrated in industry.”

Propylene oxide is an important basic raw material of organic chemical industry and fine chemical industry. There are nearly a hundred kinds of downstream products. my country has become the world's largest producer and seller of propylene oxide.

The hydrogen peroxide direct oxidation (HPPO) method has the characteristics of simple process flow, high product yield, few other by-products, and basically no pollution. However, this technology has been monopolized by a few foreign companies. After 10 years of joint development, Changling Refining & Chemical Co., Ltd. and the Academy of Petroleum Sciences completed the pilot test of HPPO in 2012. In November 2014, Changling Refining & Chemical Co., Ltd. built the first industrial demonstration plant in China, and organized elite troops to actively prepare for start-up, and established methanol (water) cycle, propylene cycle and propylene oxide cycle respectively, laying a good foundation for the start-up of the plant. Base.