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公开(公告)号：US20200238241A1
公开(公告)日：2020-07-30
申请号：US16650616
申请日：2018-10-01
Applicant: HALDOR TOPSØE A/S
Inventor： Geert COLDING , Uffe Bach THOMSEN
IPC: B01J8/04 , C01B17/765 , C01B17/80
Abstract: In a converter for the catalytic oxidation of SO2 to SO3 in a sulfuric acid plant, which comprises a boiler section for the cooling of process gas between catalytic layers (beds), one or more water tube boilers (inter-bed boilers) having horizontal or slightly sloped tubes are used to cool the process gas between the catalytic layers (beds) in the converter. Each water tube boiler is provided with a process gas side bypass to control the temperature to the down-stream catalyst layer.
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