Assessment of γ-AL2O3 Prepared from Local Clay as an Effective Catalyst for Thermal Cracking of Atmospheric Residue: Optimizations of Variables and Analysis of the Upgraded Liquid Oil: Assessment of γ-AL2O3 Prepared from Local Clay as an Effective Catalyst. Rafidain Journal of Science, [S. l.], v. 35, n. 1, p. 82–93, 2026. DOI: 10.33899/rsci.v35i1.61994. Disponível em: https://rsci.uomosul.edu.iq/index.php/rsci/article/view/61994. Acesso em: 20 aug. 2026.