| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1196685 | Journal of Analytical and Applied Pyrolysis | 2014 | 10 Pages |
•Slow pyrolysis of oil sludge in presence of calcium oxide has been performed.• Liquid and gaseous products rich on hydrocarbons with low sulfur content have been obtained.•Transformation of mineral matter during pyrolysis has been investigated.•Increase of polyaromatic hydrocarbons content during pyrolysis has been observed.
The focus of recent research is the utilization of oil sludge as a potential source of hydrocarbons via pyrolysis with the presence of calcium oxide as an additive. Pyrolysis of oil sludge was studied by thermogravimetry and in a laboratory-scale reactor. Results obtained by both methods are consistent. Formation of char, common for slow pyrolysis was very limited. A possible explanation could be in the reaction of calcium sulfate with char which leads to the consumption of carbon and formation of CaS. Oil sludge produced a large amount of oil rich on aliphatic compounds with a higher calorific value of about 42 MJ kg−1 and low sulfur content. A large increase in polyaromatic hydrocarbons during the pyrolysis was observed. Precursors of polyaromatic hydrocarbons were identified in the gas phase.
