Selective oxidation of hydrogen sulfide in a wetted wall column reactor: A heterogeneous chemical kinetic study

Androutsopoulos, GP; Pitsinis, NA

dc.contributor.author	Androutsopoulos, GP	en
dc.contributor.author	Pitsinis, NA	en
dc.date.accessioned	2014-03-01T11:44:30Z
dc.date.available	2014-03-01T11:44:30Z
dc.date.issued	2001	en
dc.identifier.issn	0009286X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36977
dc.subject	Chemical Kinetics	en
dc.subject	Hydrogen Sulfide	en
dc.title	Selective oxidation of hydrogen sulfide in a wetted wall column reactor: A heterogeneous chemical kinetic study	en
heal.type	other	en
heal.identifier.primary	10.1002/1522-2640(200106)73:6<683::AID-CITE6831111>3.0.CO;2-G	en
heal.identifier.secondary	http://dx.doi.org/10.1002/1522-2640(200106)73:6<683::AID-CITE6831111>3.0.CO;2-G	en
heal.publicationDate	2001	en
heal.abstract	A kinetic study was made of H2S selective oxidation into sulfur in a wetted wall, batch recycle reactor, using a e3+-NTA solution. The conversion of Fe3+ to Fe2+ was determined at pH ∼ 3-6 and ∼ 30°-60°C. The penetration theory was used in the analysis of results and the evaluation of the intrinsic specific reaction rate constant and the enhancement factor was accomplished. Arrhenius plots were constructed and the overall activation energy was found equal to ∼ 19 kcal/mole. This value compared well with that of 24 kcal/mole reported for a similar kinetic study performed in a bubble column reactor and indicated a chemical reaction control of the overall mass transfer-chemical reaction. Enhancements factors were 2.7-7.5 at pH 3; 3.2-14.1 at pH 4; 5.9-17 at pH 5; and 6.7-20.1 at pH 6, indicating a substantial increase of the mass transfer coefficient due to chemical reaction.	en
heal.journalName	Chemie-Ingenieur-Technik	en
dc.identifier.doi	10.1002/1522-2640(200106)73:6<683::AID-CITE6831111>3.0.CO;2-G	en
dc.identifier.volume	73	en
dc.identifier.issue	6	en
dc.identifier.spage	683	en