Recently, the news that Tianjin Petrochemical’s 150,000-ton/year propylene oxide industrial demonstration plant, which applied Sinopec’s proprietary intellectual property rights CHP technology to produce propylene oxide, was successful in the first run, and the circle of friends exploded. , It can be said that 2023 will be a “good start”, earning enough attention.
For people in the propylene oxide-polyether polyol industry circle, there are indeed different attitudes between sorrow and joy. Why is this?
On the one hand, the smooth start of Tianjin Sanpec puts incremental pressure on the supply side, and it is difficult to boost the industry’s confidence in the expected price of propylene oxide. The propylene oxide market may bear press down. During the Spring Festival, the propylene oxide supply end device was running smoothly, and the main downstream polyether polyol factory maintained an appropriate amount of follow-up Inward, the overall trading volume is limited. At the end of the festival, the cyclopropane plant waited and saw a slight rebound in costs and no pressure on inventory, and continued to rise by 100 yuan. After the festival, propylene oxide and polyether manufacturers started work earlier, and the pace of resumption of work at mid- and downstream terminals was slow, and most of them were concentrated after the Lantern Festival. During the week, the market activity was low, the news surface was relatively calm, and there were few bidders at high prices. The news that Satellite Chemical’s 400,000-ton and Tianjin Sanpec’s 150,000-ton propylene oxide propylene plant is on trial production has intensified the industry’s wait-and-see mentality. The pressure on shipments from propylene oxide factories continued to accumulate, and the inventory was under control to achieve a stable weekly growth Stalemate.
On the other hand, the successful development of the CHP legal propylene oxide complete set of technology with independent intellectual property rights is a breakthrough in domestic technology. In recent years, the innovation and rise of co-oxidation technology has reversed the situation that my country mainly produces propylene oxide by chlorohydrin method. The proportion of chlorohydrin method has been reduced from 52.5% in 2020 to 31.4% in 2022. From 35.7% in 2022 to 58.4%. Co-oxidation methods include PO/SM, PO/MTBE, PO/TBA and modified CHP processes.
CHP The process has low initial investment, fewer types of raw materials, less waste, High safety, good product quality and advantages of non-linked products. It was successfully developed by Japan’s Sumitomo Chemical Company in 1998. In 2003, Oxirane, a joint venture between Sumitomo and Lyondell, successfully put into operation a 200,000-ton CHP device in Chiba, Japan.
After the successful test run of Tianjin Sanpec, as of now, there are only two domestic CHP legally produced propylene oxides, including Hongbaoli.
2006Since 2006, Hongbaoli has cooperated with universities to carry out catalytic oxidation of propylene After more than ten years of research and development, accumulation, and innovation in the research and development of the technology project of preparing propylene oxide, at the beginning of 2019, the 120,000-ton/year propylene oxide project of Taixing Chemical Co., Ltd. of Hongbaoli Group succeeded in a one-time test run. This project is the third set in the world and the first set in China to adopt the CHP co-oxidation method, breaking the current situation that the domestic CHP method has no industrial application.
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