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Remodelling, Optimization and Characterization of Columns for Hydrogen Chloride and Sulphur Dioxide Absorption in Exhaust Air

  • Hydrogen chloride and sulphur dioxide are gaseous by-products of chloridization processes that employ thionyl chloride. Absorption would be a feasible method to clean the rich gas stream. Two serial connectable absorption columns were equipped with the latest generation of packings to effect product recovery. Therefore, several tests concerning the baffle properties had to be performed. In theHydrogen chloride and sulphur dioxide are gaseous by-products of chloridization processes that employ thionyl chloride. Absorption would be a feasible method to clean the rich gas stream. Two serial connectable absorption columns were equipped with the latest generation of packings to effect product recovery. Therefore, several tests concerning the baffle properties had to be performed. In the first experimental section, the hydraulic parameters pressure drop and hold-up were investigated. The hold up value range of the new baffles Raschig Super Ring (RSR) and Raschig Super Pak (RSP) was clearly below that of the former installed packing, Raschig Ring (RR). However, due to the low maximal flow rate, the range of stagnation and flooding could not be measured. The maximal measured pressure drop value was, for RR, only 0.3 mbar/m, which is very low compared to the measurement error. Batch experiments, where the waste gases were produced by reaction of thionyl chloride in water, showed that for the steady state determination of the separation steps it is advisable to use just one column in simplex mode with a defined gas supply by a gas cylinder. The HTU determination for RSR and a HCl/H2O system delivered a value of HTUHCl,OG = 0.14 ± 0.01 m with a variation coefficient of 24.2%.show moreshow less

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Metadaten
Document Type:Article (reviewed)
Zitierlink: https://opus.hs-offenburg.de/3513
Bibliografische Angaben
Title (English):Remodelling, Optimization and Characterization of Columns for Hydrogen Chloride and Sulphur Dioxide Absorption in Exhaust Air
Author:Daniel MesitschekStaff MemberGND, Ennio Vanoli
Year of Publication:2009
Creating Corporation:Swiss Chemical Society
Publisher:Ingenta
First Page:223
Last Page:227
Parent Title (English):CHIMIA International Journal for Chemistry
Volume:63
Issue:4
ISSN:0009–4293
DOI:https://doi.org/10.2533/chimia.2009.223
Language:English
Inhaltliche Informationen
Institutes:Fakultät Maschinenbau und Verfahrenstechnik (M+V)
Institutes:Bibliografie
GND Keyword:Absorption; Chlorwasserstoff; Eigenschaft; Schwefeldioxid
Formale Angaben
Open Access: Open Access 
Licence (German):License LogoUrheberrechtlich geschützt