[Ten years of development of chemical equipment] 1806-2024 Zunyi thousand-ton third-generation carbon nanotube factory production line was successfully put into operation

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2 0 2 4 Happy May Day, safety first. Thumbs up for the achievements of China's chemical technology and equipment. * * * * * * * * * * * * * * * * * * * * * * [Ten years of development of chemical equipment] Continue to update summary posts, welcome to participate in the discussion https://bbs.hcbbs.com/thread-3576046-1-1.html (Source: Haichuan Chemical Forum Network) * * * * * * * * * * * * * * * * * Juyuan Material Technology (Zunyi) Co., Ltd. and Zhao Shetao, a well-known domestic carbon nanotube expert, worked together to build a third-generation carbon nanotube factory production line with a single equipment annual output of kilotons after two years of technical research and successfully put it into operation recently. The third-generation carbon nanotube factory combines the respective advantages of fixed bed and fluidized bed equipment, and has the advantages of long-term continuous operation, large-scale equipment, and compact layout. 　　According to Zhao Shetao, domestic carbon nanotubes are mainly used as conductive agents in power batteries. With the rapid growth of the power battery industry, its market size has reached several billion yuan per year. Many domestic and foreign companies and listed companies have intervened in the field of carbon nanotube conductive agents. With the expansion of the application scale of new technologies such as high-nickel cathodes, silicon-based anodes and solid-state batteries for lithium batteries, the market for carbon nanotubes will experience explosive growth, and the lithium battery field alone will become a tens of billions market per year. 　　In addition to excellent electrical conductivity, carbon nanotubes also have ultra-high mechanical and thermal properties and a huge potential market that can be developed. The application of conductive agents in lithium batteries is just the "tip of the iceberg" in the industrialization of carbon nanotubes. It is the first step for capital and traditional chemical new material companies to understand carbon nanotubes. Carbon nanotubes will have a broader market in touch screens, transistors, biomedicine, solar photovoltaic cells, tires, fuel cells, drug delivery, hydrogen storage, polymer materials, capacitors, composite materials and other fields, and will continue to break through multiple tens of billions of markets and become an industry with a market of hundreds of billions. 　　The huge carbon nanotube application market requires sufficient carbon nanotube production capacity to support it, as well as a sustainable supply of low-cost, high-quality carbon nanotubes to open up a huge downstream potential application market. 　　In the early days, the ton-level production of carbon nanotubes was achieved by fixed bed/moving bed equipment. In a horizontally placed tube furnace, sophisticated devices were used to realize the continuous addition of catalysts and hydrocarbon raw materials and the continuous output of carbon nanotube products. It was possible to achieve the production of the first-generation carbon nanotube factory from ton to dozens of tons per year with a single piece of equipment. Up to now, there is still some market space for the first-generation carbon nanotube factory using fixed bed/moving bed for the production of some special types of carbon nanotubes or carbon nanotubes using some special raw materials as carbon sources. 　　In order to achieve larger-scale carbon nanotube production, the second-generation carbon nanotube factory using fluidized bed as the reactor has solved the problem of larger-scale production to a certain extent. The annual production capacity of a single reactor can reach hundreds of tons to hundreds of tons. At present, in the large-scale production of carbon nanotubes in China, many production companies basically use fluidized bed reactors. With the emergence of larger-scale production requirements, fluidized bed reactors have problems such as the inability to scale up, easy carbon deposition and coking to block the reactor, difficulty in shutting down the reactor and long time-consuming cycles, etc., which seriously restrict the expansion of a single fluidized bed reactor's production capacity. At present, the inner diameter of fluidized bed reactors in the industry is basically 500-800mm, and it is very difficult to further expand the production capacity of a single piece of equipment. 　　Moreover, with the further development of the lithium battery industry, a few special occasions have also put forward higher requirements for the conductivity of carbon nanotubes, and it is hoped that the conductivity of carbon nanotubes can be further improved.