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Catalysis in Green Chemistry and Engineering

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ISSN Печать: 2572-9896

ISSN Онлайн: 2572-990X

H-Index: 2

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HYDRODECHLORINATION OF CHLORINATED PHENOLIC AND AROMATIC CARBONYL COMPOUNDS OVER RU/C CATALYST IN A SLURRY REACTOR

Том 4, Выпуск 2, 2021, pp. 1-10
DOI: 10.1615/CatalGreenChemEng.2021037075
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Краткое описание

Catalytic hydrodechlorination (HDC) is a prospective technique for the effective treatment of wastewaters contaminated with chlorinated organic pollutants. In this work, the following five chlorinated phenolic and aromatic carbonyl reagents were chosen in a model compound study for catalytic HDC: 4-chloro-2-aminophenol (CA), 4-chloro-2-methoxyphenol (CM), 4-chloro-resorcinol (CR), 4-chloro-benzamide (CB), and 4-chloro-benzaldehyde (CZ). A ruthenium/carbon catalyst was prepared by the wet impregnation method and used for HDC of these compounds in a slurry reactor at temperatures between 313 and 373 K. The effects of the temperature and catalyst loading on the reactant conversion and product selectivity were studied. The efficiency of chlorine removal decreased in the following order: CZ > CR ≈ CM > CB > CA. The catalyst was characterized by various instrumental techniques such as temperature-programmed reduction, electron microscopy, and X-ray diffraction. This model compound study will be helpful for further insight into the reactivity of chlorinated phenolic and aromatic carbonyl contaminants in the HDC process.

Ключевые слова: catalyst, chloro-aromatics, hydrodechlorination, ruthenium
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