MOLECULAR SCIENCES AND APPLICATIONS
Print ISSN: 2944-9138, E-ISSN: 2732-9992 An Open Access International Journal of Molecular Sciences and Applications
Volume 1, 2021
Thermolysis of Oil Sludge With Metal Chlorides as a Catalyst
Authors: , , , ,
Abstract: Oil sludge utilization is an important economical and ecological problem which solution can be an essential step towards the development of resource-saving technology on the basis of the integrated use of oil raw material. Catalytic influence of $$КCl, NaCl, ZnCl_{2}, MgCl_{2}, AlCl_{3}, FeCl_{2}, FeCl_{3}, CoCl_{2}$$ and $$NiCl_{2}$$ on the thermolysis of oil sludge had been studied. The optimal process parameters such as temperature, amount of catalyst, ratio of oil sludge to sand, residence time of the black sludge inside reactor were also explored. The most attractive conditions were dined as follows: catalyst – $$ CoCl_{2}$$ 5 wt. %, oil content – 20 wt. %, temperature $$-500 °C $$. Besides $$ NiCl_{2}$$ and $$ ZnCl_{2}$$ also showed a high level of conversion. As a result of $$ CoCl_{2}$$ influence the activation energy of thermolysis decreased by 20-30 kJ/mol; the presence of $$ C_{1}-C_{4}$$ hydrocarbons in gaseous product increased in 2.4; a percent degree of conversion of oil sludge into gaseous and liquid products increased by 37% and 7% , respectively, compared to non-catalytic treatment.
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Keywords: catalytic pyrolysis, oil sludge, metal chlorides, gaseous hydrocarbons, liquid hydrocarbons
Pages: 16-22
DOI: 10.37394/232023.2021.1.4