Regeneration of poisoned nickel catalyst by supercritical CO2 extraction

Authors
Vradman, L Herskowitz, M Korin, E Wisniak, J
Citation
L. Vradman et al., Regeneration of poisoned nickel catalyst by supercritical CO2 extraction, IND ENG RES, 40(7), 2001, pp. 1589-1590
Citations number
8
Categorie Soggetti
Chemical Engineering
Journal title
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN journal
08885885 → ACNP
Volume
40
Issue
7
Year of publication
2001
Pages
1589 - 1590
Database
ISI
SICI code
0888-5885(20010404)40:7<1589:ROPNCB>2.0.ZU;2-M
Abstract
Regeneration of a thiophene-poisoned Ni-supported catalyst was carried out by supercritical CO2 extraction. The catalyst activity was measured in the hydrogenation of 2-butanone to 2-butanol at 373 K and 1.7 MPa. The supercri tical extraction was tested over a range of operating conditions. Regenerat ion at 313 K and 41 MPa for 16 h recovered completely the catalyst activity . Other methods cited in the literature displayed a lower performance in re generation of Ni catalysts.