[Ten years of development of chemical equipment] 626-2019 DN4000 deoxygenation reactor for ethylene glycol co-production LNG project

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This post was last edited by Swimming Fish in the Desert on 2022-11-17 19:33, looking at the ten years of development of chemical equipment and praising the prosperity of China. Replies and prizes are welcome to discuss ---------------------------------------------- In April 2019, Hangzhou Linda Company completed the processing and manufacturing of DN4000 deoxygenation reactor internals for Shanxi Woneng Chemical's comprehensive tail gas production of 300,000 tons/year ethylene glycol co-production LNG project. The deoxygenation reactor is a gas-cooled reactor with a single tube for counter-current heat exchange. It is a new structure of Linda's homogeneous temperature series internals. The bed temperature is controlled by absorbing the reaction heat of the cold feed gas in the tube. ； The catalyst is loaded outside the tube, the catalyst filling coefficient is high, and it can be self-unloaded. ； The heat exchange internal parts can be freely retracted. This type of reactor is particularly suitable for applications in gas-solid phase catalytic reaction engineering with low heat release. The diameter of this deoxygenation reactor is as large as 4m. During the design, technological innovations were made in the structure of the gas distributor and collector to ensure uniform gas distribution in the reactor. After the raw material gas enters the reactor, it passes through the internal gas distributor and is evenly distributed into each cold tube. The gas distributor can be accessed for maintenance. The gas passes through a specially designed gas distribution device at the outlet of the cold tube to change the gas flow direction and enter the catalyst bed evenly. The gas distribution device is easy to assemble and disassemble, which solves the problem of difficulty in processing, manufacturing and installation of the original wire mesh distributor. The completion of the processing of the internal parts of this deoxygenation reactor marks a more solid step taken by Linda in the manufacturing of large-diameter reactors. Linda is at the domestic leading level in the design and manufacturing of reactor internal parts. The Φ4000 converter gas deoxygenation reactor manufactured by Hangzhou Linda Chemical Technology Engineering Co., Ltd. was successfully put into operation in Shanxi Woneng Chemical Technology Co., Ltd.'s comprehensive exhaust gas production of 300,000 tons/ethylene glycol co-production LNG project. At present, the converter gas enters the furnace at 65°C, the reactor outlet temperature is 75°C, and the average catalyst temperature is 93°C, reaching the control indicators. The deoxygenation reactor is a homogeneous temperature series technology of Linda Company. It was first used in methanol reactors and won the 2004 * * Second Prize for Technical Invention. In recent years, this technology has played a new role in dimethyl ether, deoxygenation, gas purification and other devices. In July 2020, the Φ4000 converter gas deoxygenation reactor manufactured by Hangzhou Linda Chemical Technology Engineering Co., Ltd. was successfully put into operation in Shanxi Woneng Chemical Technology Co., Ltd.’s comprehensive exhaust gas production of 300,000 tons/ethylene glycol co-production LNG project. At present, the converter gas enters the furnace at 65°C, the reactor outlet temperature is 75°C, and the average catalyst temperature is 93°C, reaching the control indicators.