Hydrodechlorination of chloroaromatic compounds over carbon-supported Ni-Mo catalysts

• Autorzy: Klijanienko A , Gryglewicz G. , Stolarski M. , Gryglewicz S.
• Języki publikacji: EN

Abstrakty

EN

The hydrodechlorination (HDCl) process of 2-chlorodiphenyl, 4-chlorodiphenyl, chlorobenzene, chloronaphthalene and chloroanthracene was studied over a sulphided carbon-supported Ni-Mo catalyst (15 wt% MoO3, 5 wt% NiO) in a stirred autoclave at 260°C and at a hydrogen pressure of 3 MPa. Activated carbons of different porosity characteristics were used as Ni-Mo catalyst support. A high chlorine removal for chloroorganic compounds was obtained in the presence of Ni-Mo/C catalysts, ranging from 73 to 99%. For monochlorodiphenyls, the HDCl degree is related to the position of the substituted chlorine atom. 4- chlorodiphenyl was converted to diphenyl to a higher extent compared with 2-chlorodiphenyl. Chloronaphthalene and chloroanthracene were shown to be more susceptible to chlorine removal than chlorobenzene. For comparison, chlorocyclohexane was tested in the HDCl reaction. The dechlorination of chlorocyclohexane proceeded at a much lower temperature compared to chlorobenzene.

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2008
• Tom: 17
• Numer: 6
• Opis fizyczny: p.887-893,fig.,ref.

Twórcy

autor

Klijanienko A

• Wroclaw University of Technology, 50-344 Wroclaw, Gdanska 7/9, Poland

autor

Gryglewicz G.

autor

Stolarski M.

autor

Gryglewicz S.

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