On October 23rd, the toluene-methanol-to-p-xylene (PX) cogeneration low-carbon olefin technology developed by the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences passed the scientific and technological achievements appraisal organized by the China Petroleum and Chemical Industry Federation. Experts believe that the technology proposes an innovative PX cogeneration low-carbon olefins route from toluene methanol, with a flexible ratio of PX and low-carbon olefins, and a proprietary catalyst for fluidized bed production of PX co-produced low-carbon olefins from independently developed toluene and methanol. It has good physical and chemical properties, can be recycled and meets the technological requirements, and it can produce low-carbon olefins at the same time when high selectivity PX is obtained. The product scheme is flexible and the technical indicators have reached the international advanced level. At the same time, experts recommend that the study of engineering be accelerated and that industrialization be achieved as soon as possible. According to reports, this technology uses toluene and methanol as raw materials, and adopts a circulating fluidized bed process to simultaneously selectively produce PX and low-carbon olefins such as ethylene and propylene on a single reaction system and a catalyst, which not only realizes petrochemical and coal chemical industry Organically combined and can provide basic raw materials for polyester production. This technology has opened up a new technical route for PX production, which can be used as a technical upgrading technology for the existing aromatics combined plant, increasing PX production and lowering the energy consumption of the plant; it can also be applied to newly-built aromatics complexes, which is reduced compared to traditional PX production technologies. Unit costs such as disproportionation, isomerization, and operating costs; if a separate, newly-produced toluene-to-methanol-to-PX cogeneration low-carbon olefin plant can replace the expensive adsorptive separation unit with a simple crystallization separation unit, the PX production cost is greatly reduced. The technology can also provide PX and ethylene two indirect raw materials for the production of polyethylene terephthalate (PET) to improve the economy of the polyester industrial chain. According to reports, Shaanxi Coal Industry Chemical Technology Research Institute of Coal Chemical Technology Engineering Center Co., Ltd. and Dalian Institute of Materials in July this year in Hua County to complete the pilot project, to provide a reliable data support for the design of industrial demonstration devices. Middle Speed Wire Edm,Wire Edm Cutting Speed Table,Wire Edm Speed,Wire Edm Cutting Speed Taizhou Jiangzhou CNC Machine Tool Manufacturing Co.,Ltd , https://www.machinetzjz.com