【Ten Years of Great Progress in Chemical Technology】The third-generation methanol-to-olefins (DMTO-III) technology was appraised as a scientific and technological achievement from 2011 to 2020
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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 take part more actively in the forum discussions. Be careful with fire as the heat increases in July. ********************************************* On November 9, 2020, the third-generation methanol-to-olefins (DMTO-III) technology was approved as an achievement in scientific and technological innovation by the China Petroleum and Chemical Industry Federation in Beijing. This technology was developed by the Dalian Institute of Chemical Physics, Chinese Academy of Sciences (hereinafter referred to as \"Dalian Institute of Chemical Physics\”), and holds complete independent intellectual property rights. The appraisal experts unanimously agreed that this achievement is highly innovative, possesses complete independent intellectual property rights, is at the international leading level, has significant technical advantages, drives technological progress in the industry, and offers broad application prospects ； It is recommended to accelerate the promotion and application of the new generation of catalysts, and to establish the DMTO-III industrial demonstration plant at an early date. The methanol processing capacity of a single industrial unit for both DMTO and DMTO-Ⅱ technologies is 1.8 million tons per year. The methanol consumption per ton of olefins (ethylene + propylene) in the DMTO technology is 2.97 tons. The DMTO-Ⅱ technology adds a cracking unit for the by-product components with a molecular weight of C4+ on top of the DMTO technology, which results in lower raw material consumption compared to DMTO. The DMTO-Ⅲ technology utilizes a new generation of catalysts, and through innovations in the reactor design and process flow, it eliminates the need for a separate unit for the decomposition of hydrocarbons with four or more carbon atoms. This allows an industrial plant to handle up to 3 million tons of methanol per year. Process simulation results show that the methanol consumption per ton of olefins (ethylene + propylene) in such plants can be reduced to 2.62–2.66 tons.
In July 2020, the signing ceremony for the new-generation methanol-to-olefins (DMTO-III) technology cooperation and development project was held in Luoyang, marking a significant acceleration in the development of the third-generation DMTO technology through the partnership between Sinopec Luoyang/Guangzhou Engineering Co., Ltd. and the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences. The DMTO methanol-to-olefins technology refers to a chemical process that uses methanol synthesized from coal or natural gas as raw material, and employs a fluidized-bed reaction system similar to that in catalytic cracking units to produce low-carbon olefins. As early as 1997, the two parties began research and development on this technological advancement. In August 2010, the world’s first million-ton-scale methanol-to-olefins industrial plant was built in Baotou, opening up a new path for the coal-based energy and chemical industry and establishing China’s leading position in the global industry of coal-based olefins production. This is of great significance for replacing petroleum-based raw materials in China’s petrochemical industry and ensuring energy security. Subsequently, the two parties began developing second-generation DMTO technology. In 2015, an 1.8 million tons per year DMTO industrial plant built using second-generation DMTO technology was successfully put into operation in Pucheng, Shaanxi. The unit comprises two systems: MTO reverse regeneration (first-generation technology) and C4 reverse regeneration, which can increase the olefin yield by 10%. The third-generation DMTO technology developed through this collaboration builds upon the first and second-generation technologies created through their joint efforts, by introducing a new generation of catalysts with improved performance. New types of reactors and regenerators are designed to meet the reaction requirements of these catalysts, and technological innovations such as energy optimization are implemented to maintain a leading position in the DMTO field. At the same time, this technology plays an important role in facilitating the cleaner utilization of coal in China and promoting the sustainable development of the new coal chemical industry. To date, the DMTO technology has seen 26 licensing agreements, and 14 DMTO industrial plants have been built and put into operation, giving rise to a strategic new industry in China for producing olefins from methanol.
【Ten Years of Great Progress in Chemical Engineering Technology】Pilot-scale fixed-bed cobalt-based FTO synthesis plant with a capacity of 300 tons per year, 1994–2020 https://bbs.hcbbs.com/thread-4201833-1-1.html (Source: Haichuan Network)
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