Dehydration of methanol to dimethyl ether catalyst was used

The industrial catalyst and process technology provided by the Dalian Institute of Chemicals of the Chinese Academy of Sciences, Donghua Engineering Co., Ltd. carried out engineering design, and the 100,000 tons of dimethyl ether industrial plant with an annual output of 100,000 tons was built at Hebei Zhongjie Petrochemical Group. At present, the device operates smoothly, product quality is stable, and the purity of dimethyl ether reaches more than 99.5%.

According to reports, in conjunction with national plans and market demands, Dalian Institute of Materials Technology has developed a patented technology for the dehydration of methanol with independent intellectual property rights, using a new type of catalytic material independently developed as a catalyst and a novel reaction process. The new catalyst has high activity and good selectivity. The initial reaction temperature is low, the single-pass conversion of methanol is high, the side reactions are small, and the reaction bed temperature is balanced.

H/HH Type Fin Tube

H finned tube is called square finned tube, there are two types of H finned tube, one is a single tube, usually called square finned tube, the other is a double tube, usually called rectangular finned tube. And according to customer requirements manufacturing. Due to its rectangular shape, it provides a larger surface area than spiral finned tubes. Because of the larger surface area available, these finned tubes are primarily used in air heating applications to reduce the overall size of the equipment.

H-shaped finned tubes have a high area expansion rate, less dust accumulation, and high heat transfer efficiency. In the case of equivalent heat transfer capacity, the heat exchanger can occupy the smallest space, and can minimize high-grade materials (ie, pressure tubes) The amount of use, and more use of low-grade materials,( 1919113,fins). For new engineering projects, the height of the heat exchanger arrangement can be reduced, the overall weight is greatly reduced, the load of the suspension system is reduced, and the overall cost is reduced; for the renovation project, as much heat exchange area as possible can be arranged in a limited space to reduce the exhaust temperature , Improve the efficiency of waste heat recovery or increase the maintenance space for easy maintenance.

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