Control of cyclochexane atmospheric emissions during soil remediation

• Tipo: Artigo em Revista Científica Internacional
• Data: 2000

Autores

Maria da Conceição M. Alvim Ferraz (Autor) FEUP; João C. Lourenço (Autor) Outra; Senta Becker (Autor) Outra

Revista

Título: Water, Air, and Soil Pollution

Vol. 120 Nº 3

Páginas: 261-272

ISSN: 0049-6979

Editora: Springer Nature

Indexação

ISI Web of Science

Scopus

COMPENDEX

Outras Informações

DOI: 10.1023/a:1005223929891

Abstract (EN): Gaseous effluent from the treatment of contaminated soils must be controlled to avoid atmospheric emissions of volatile organic compounds during remediation. The combination of carbon adsorption with catalytic deep oxidation for control of cyclohexane emissions is analysed in this paper. The activities of activated carbons prepared with almond shells and impregnated with CoO, Co3O4 and CrO3 were compared, in relation with carbon structure, catalyst content and catalyst species. The microcatalytic-chromatographic technique developed was very suitable for rapid comparison of the catalytic activities. Carbons with a better development of surface area and pore volumes showed higher catalytic activities. The increasing of catalyst content also increased catalytic activity. Cobalt is better than chromium to catalyse the deep oxidation of cyclohexane, the oxidation state of cobalt in Co3O4 being better than in CoO. Gaseous effluent from the treatment of contaminated soils must be controlled to avoid atmospheric emissions of volatile organic compounds during remediation. The combination of carbon adsorption with catalytic deep oxidation for control of cyclohexane emissions is analysed in this paper. The activities of activated carbons prepared with almond shells and impregnated with CoO, Co3O4 and CrO3 were compared, in relation with carbon structure, catalyst content and catalyst species. The microcatalytic-chromatographic technique developed was very suitable for rapid comparison of the catalytic activities. Carbons with a better development of surface area and pore volumes showed higher catalytic activities. The increasing of catalyst content also increased catalytic activity. Cobalt is better than chromium to catalyse the deep oxidation of cyclohexane, the oxidation state of cobalt in Co3O4 being better than in CoO.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12