N-butyl mercaptan adsorption on activated carbon in aqueous phase

Matsis, VM; Grigoropoulou, HP

dc.contributor.author	Matsis, VM	en
dc.contributor.author	Grigoropoulou, HP	en
dc.date.accessioned	2014-03-01T02:02:59Z
dc.date.available	2014-03-01T02:02:59Z
dc.date.issued	2011	en
dc.identifier.issn	01496395	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29336
dc.subject	Activated carbon	en
dc.subject	Adsorption	en
dc.subject	Aqueous phase	en
dc.subject	N-butyl mercaptan	en
dc.subject.other	Acid base	en
dc.subject.other	Aqueous phase	en
dc.subject.other	Carbon surface	en
dc.subject.other	Energy value	en
dc.subject.other	Langmuir isotherm	en
dc.subject.other	Langmuirs	en
dc.subject.other	Meso-pores	en
dc.subject.other	Micropores	en
dc.subject.other	N-butyl mercaptan	en
dc.subject.other	Oxidation-reduction reaction	en
dc.subject.other	Van der waals	en
dc.subject.other	Activated carbon	en
dc.subject.other	Adsorption	en
dc.subject.other	Dissolved oxygen	en
dc.subject.other	Hydrogen bonds	en
dc.subject.other	Isotherms	en
dc.subject.other	Microporosity	en
dc.subject.other	Sulfur	en
dc.subject.other	Surface reactions	en
dc.subject.other	Van der Waals forces	en
dc.subject.other	Gas adsorption	en
dc.title	N-butyl mercaptan adsorption on activated carbon in aqueous phase	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/01496395.2011.591647	en
heal.identifier.secondary	http://dx.doi.org/10.1080/01496395.2011.591647	en
heal.publicationDate	2011	en
heal.abstract	Adsorption of aqueous n-butyl mercaptan on Granular/Powder Activated Carbon is studied at pH 5-12.4 and 301 K/313 K. In GAC mercaptan blocks micropores and mesopores, whereas in PAC the broader mesopores remain intact providing access to micropores. Mercaptan is transformed into isomer disulfides and non-extractable sulfur forms following acid-base or oxidationreduction reaction depending on carbon surface groups and iron, and dissolved oxygen. Adsorption obeys a Langmuir isotherm, with oxygen competing with mercaptan (<100 mg mercaptan/L), followed by a Dubinin-Raduschkevich isotherm. Mercaptan uptake increases with temperature. Free energy values suggest that the Langmuir part represents hydrogen bonds whereas the Dubinin-Raduschkevic part the van der Waals ones. © Taylor & Francis Group, LLC.	en
heal.journalName	Separation Science and Technology	en
dc.identifier.doi	10.1080/01496395.2011.591647	en
dc.identifier.volume	46	en
dc.identifier.issue	13	en
dc.identifier.spage	2004	en
dc.identifier.epage	2021	en