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Nanjing Dunxian Chemical Technology Co., Ltd.
has developed a new type of composite axial uniform-temperature reactor specifically for copper-based shift applications and has designed corresponding specialized process flows for various CO concentrations.Gas Flow: Raw gas enters the reactor from the upper part and the gap between the inner part and the shell. After mixing, the gas goes through the catalyst bed. The reacted gas then exits the reactor from the lower outlet pipe.
Water Flow: Unsaturated water from the steam drum enters the reactor through the lower water inlet pipe and is distributed to each heat-exchange tube via the lower inlet water sphere cavity. As it absorbs heat from the reaction gas, it generates steam. The mixture is collected by the upper water-collecting sphere cavity and returned to the steam drum through the outlet pipe.
Steam separated in the drum is sent to other processes, while the remaining water circulates back into the reactor from the drum’s lower section to complete the cycle.
The axial structure has a linear velocity of up to approximately 0.5 m/s, ensuring no over-temperature in the copper-based catalyst bed and effectively extending catalyst service life.
The reactor features a reasonable structure, strong pressure-bearing capacity, and a high safety factor. The pressure-bearing cylinder and inner parts are separately designed and manufactured for easy installation and maintenance.
A non-uniform tube arrangement method makes it easier to form a reasonable temperature curve in the bed and effectively extends the service life of the catalyst.
Leak inspection, maintenance, and plugging can be completed without catalyst unloading.
http://www.dunxianchemical.com
dunxian
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