【Ten Years of Great Progress in Chemical Technology】158-2023: 13 years in total! China’s first HPPO unit developed with indigenous technology successfully tested
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Ten years of rapid development in chemical technology – praise for China’s prosperity and strength. This is just a starting point; more participation from everyone will make things even more lively. HaiChuan becomes even better with your involvement; we welcome everyone to join in the forum discussions. Be careful with fire risks as the heat increases in July. ---------------------------------------------On July 13, 2020, Tianchen Company’s new efficient and green process for producing propylene oxide using hydrogen peroxide, which relies on entirely proprietary technology, was put into operation successfully. The combined facility designed by the company, capable of producing 300,000 tons of propylene oxide per year along with 900,000 tons of hydrogen peroxide per year, also began operations successfully. It is reported that the first 300,000-ton/year HPPO plant in China to utilize proprietary technology has been successfully commissioned. This marks an increase in the designed production capacity of propylene oxide using the direct oxidation process developed by Tianchen Company, from 100,000 tons/year to 300,000 tons/year. As a result, the company has shifted from being a follower in this industry to a leader on the global scale, entering a new phase in its industrial production. Since the launch of Jincheng Petrochemical’s 300,000-ton-per-year propylene oxide production facility in 2010, Tianchen Company’s HPPO R&D team has focused on developing core catalysts and key equipment. Through various stages such as pilot tests, scale-up trials, optimization of reaction conditions, and industrial design, they have successfully developed a proprietary HPPO process for the direct oxidation of hydrogen peroxide and propylene to produce propylene oxide. Compared to the traditional chlorohydrin method, the new process enables a 1.5% reduction in propylene consumption, a reduction of over 98% in wastewater generation, and a reduction of over 80% in waste residue discharge. Based on Tianchen Company’s cumulative capacity for producing propylene oxide of 1.15 million tons, once operational, this facility will enable the propylene oxide industry to reduce waste residues by approximately 3 million tons per year and wastewater discharge by 55 million tons per year – an amount equivalent to the water volume of 4 Hangzhou West Lakes per year. This truly achieves green production by addressing the fundamental aspects of the reaction process, thereby facilitating energy savings and emission reduction.
On January 15, 2019, China Tianchen Engineering Co., Ltd. and Shandong Qinghe Chemical Technology Co., Ltd., which is part of Shandong Jincheng Petrochemical Group, signed an engineering design contract for a propylene oxide (HPPO) production plant using the hydrogen peroxide method, along with a supporting hydrogen peroxide production facility with an annual capacity of 3X300,000 tons, at Tianchen Building. Bian Ming, deputy general manager of Tianchen Company, and Zhou Jingping, general manager of Shandong Jincheng Petrochemical Group, signed on behalf of their respective parties. The hydrogen peroxide-based propylene oxide (HPPO) technology is an innovative technique jointly developed primarily by Tianchen Company; it took 8 years to progress from pilot tests and scale-up trials to successful industrial implementation. The signing of the contract represents a new milestone in the cooperation between the two parties, marking a friendly beginning to comprehensive and in-depth collaboration between Jincheng Petrochemical and Tianchen Company. At the same time, this is also another successful attempt by Tianchen Company to follow its development philosophy of \"innovation-driven and technology-first,\" striving to build a technology-driven innovation platform company as well as a globally competitive flagship enterprise in the chemical industry in China.
The total investment in Jincheng Petrochemical’s 300,000-ton/year propylene oxide plant along with the associated 900,000-ton/year hydrogen peroxide plant is 3.42 billion yuan. This project utilizes an internationally advanced new process for producing propylene oxide using hydrogen peroxide; it involves the construction of a 300,000-ton/year propylene oxide plant and a corresponding 900,000-ton/year hydrogen peroxide plant. It represents a key initiative for Jincheng Petrochemical to leverage propylene as a starting material and move forward in the development of high-end polyether products and advanced polyolefin materials. The basic information of the project is as follows: Image. Project name: 300,000 tons/year propylene oxide plant using the hydrogen peroxide method, along with supporting facilities; 900,000 tons/year hydrogen peroxide production plant. Project owner: Shandong Qinghe Chemical Technology Co., Ltd. Location and area covered by the project: It is situated in the Maqiao Chemical Industry Park in HuanTai County, Zibo City, on the vacant land to the south and east of Shandong Qinghe Chemical Technology Co., Ltd., covering an area of 451,537.2 m2. Project category: New construction. Investment amount: The total investment for this project is 3,422,599,100 yuan, of which 30,710,000 yuan is allocated to environmental protection measures, accounting for 0.90% of the total investment; this amount is to be covered entirely by the company itself. Construction contents: Build a new propylene oxide plant with an annual production capacity of 300,000 tons; this propylene oxide plant is a single-line production facility ； It is equipped with a hydrogen peroxide production facility with an annual capacity of 900,000 tons. Three production lines are planned, each with an annual production capacity of 300,000 tons of 27.5% hydrogen peroxide; in addition, each line includes a concentration unit capable of producing 150,000 tons per year of 50% hydrogen peroxide. In total, this enables the production of 450,000 tons per year of 50% hydrogen peroxide. The facility also features three coal-fired boilers with a capacity of 240 t/h, as well as environmental protection systems, utility facilities, tank areas, and loading/unloading areas. The hydrogen peroxide production unit in this project utilizes the advanced and successful anthraquinone process for producing dilute solutions available in China. The hydrogen, propylene, benzene, and sulfuric acid required are supplied by Qinghe Chemical itself, while all other raw materials and auxiliary substances are purchased from external sources. The hydrogen required for the hydrogen peroxide production plant and the propylene oxide production plant comes from the Qinghe Chemical Hydrogen Pipeline Network. The hydrogen production units at Qinghe Chemical mainly include a hydrogen purification unit with a capacity of 15,000 Nm3/h, which is part of the existing 1 million tons/year heavy aromatic hydrocarbon hydrogenation and reforming plant, as well as a coal-based hydrogen production plant with a capacity of 60,000 Nm3/h that is currently under construction. The propylene required for the propylene oxide production plant comes from the MZRCC plant.
【Ten Years of Rapid Development in Chemical Equipment】The World’s Largest Semi-Aqueous Phosphoric Acid Rotary Vacuum Filter by Unit Area, 1067–2020 https://bbs.hcbbs.com/thread-4330536-1-1.html (Source: Haichuan Chemical Industry Forum Website)