The next-generation methanol-to-low-carbon olefins technology (DMTO-II) has been validated

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This post was last edited by jordan569 on 2013-1-6 at 21:24. On June 26, the next-generation methanol-to-olefins (DMTO-II) technology, which features independent intellectual property rights, underwent an evaluation of its achievements in Beijing organized by the China Petroleum and Chemical Industry Federation, and received high praise from the experts present. Liu Guiju, Deputy Director of the High-Tech Bureau of the Chinese Academy of Sciences, and Zhang Tao, Director of our institute, attended the appraisal meeting and delivered speeches. The DMTO-II technology was developed under the leadership of Shaanxi Coal and Chemical Industry Group Coal Chemical Technology Engineering Center Co., Ltd., based on the pilot-scale results obtained by our institute, in collaboration with Sinopec Luoyang Petrochemical Engineering Company. Industrial trials were carried out at the methanol-to-olefins test base of Shaanxi Coal Chemical Technology Engineering Center Co., Ltd. in Huaxian County, Shaanxi Province, with a daily methanol processing capacity of 50 tons. The test setup underwent two phases of testing from July 2009 to May 2010, completing a total of over 800 hours of operational testing. The China Petroleum and Chemical Industry Federation commissioned an expert group to conduct on-site inspections of the DMTO-II industrial test unit and its operation, as well as to carry out 72-hour evaluation and calibration. The data show that the methanol conversion rate reaches 99.97%, and the selectivity for ethylene + propylene is 85.68% ； 2.67 tons of methanol are consumed per ton of ethylene + propylene. This industrial trial used specialized catalysts produced on an industrial scale, and the tests confirmed that the catalysts performed well with a low wear rate. DMTO-II technology couples the conversion of methanol with the reconversion of the C4+ heavy fractions in its products. Both reactions use the same catalyst and are carried out using fluidized bed technology; this coupling allows for more efficient utilization of heat, resulting in higher yields of olefins. Methanol consumption per ton of olefins is reduced by more than 10%, thereby significantly lowering the raw material costs associated with olefin production. The appraisal committee, composed of experts and professors such as Xie Kechang and Wang Xieqing, who are members of the Chinese Academy of Engineering, concluded that the DMTO-II technology possesses independent intellectual property rights, features a reasonable process, is safe and reliable in operation, and boasts advanced technical specifications. It represents another innovation in methanol-to-olefins technology as well as a model of successful collaboration among industry, academia, and research institutions. The DMTO-II industrial trial provided the basic data for a large-scale commercial design, laying the foundation for the construction of a large-scale DMTO-II industrial production facility; it holds good prospects for application ； It is recommended to accelerate the industrial application and promotion of this technology based on the results of DMTO-II. The emergence of the next-generation methanol-to-olefins DMTO-II technology further enhances technical and economic competitiveness as well as resource utilization efficiency. It holds great practical and strategic significance for leveraging China’s advantages in coal resources, alleviating the shortage of oil resources in the country, and developing a new type of coal chemical industry based on coal-to-olefins production. http://www.dicp.ac.cn/xwzx/kjdt/201006/t20100628_2888421.html. Note: $ # , $ $