Thermochemical Recycling of Oily Sludge by Catalytic Pyrolysis: A Review

Scanning. 2021 Oct 31;2021:1131858. doi: 10.1155/2021/1131858. eCollection 2021.

ABSTRACT

The main methods of treating oily sludge at home and abroad and the current research status of oily sludge pyrolysis technology are briefly described, and four commonly used catalysts are introduced: metals, metal compounds, molecular sieves, metal-supported molecular sieves, and biomass catalysts for oily sludge. The influence of pyrolysis, the pyrolysis mechanism, and the product composition of oily sludge with the addition of different catalysts are also discussed. Finally, the development direction of preparing new catalysts and the mixed use of multiple catalysts is proposed as a theory to provide for the efficient and reasonable utilization of oily sludge.

PMID:34804317 | PMC:PMC8572630 | DOI:10.1155/2021/1131858

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