Mass transfer in annular cylindrical reactors in laminar flow

✍ Scribed by Jean-Léon Houzelot; Jacques Villermaux

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 532 KB
• Volume: 32
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(77)80243-1

✦ Synopsis

Rachal dlffuslonal mass transfer 1s stuched m a flmd flowmg m fully developed lammar flow m an annular cyhndncal reactor m which a first order heterogeneous reactlon LS takmg place at the wall The asymptotic behavlour of the concentration decrease far from the reactor inlet IS especially mvestlgated Lmutmg values of Sherwood numbers are numerIcally determmed and represented by semi-empulcal expressions Adchtlvlty relatlonslups between homogeneous and heterogeneous contrlbutlons are estabhshed TheoretIcal results are found m excellent agreement with those yIelded by a new experlmental method based on heterogeneous decomposltlon of ozone Annular reactors exlutnt a mass transfer efficiency wluch IS notIceably higher than that of empty tubes Tlus efficiencv mav be characterized bv three cntena related to mner space utlllzatlon, catalytic surface utdizabon _ _ and/or mechanical energy degradation