Priorities for the development of the petrochemical industry as part of the fuel and energy complex of KazakhstanUrpash Shalbolova, Leila Salykova, Kylyshbay Bissenov and Sagat MakhanovE3S Web Conf., 411 (2023) 01043DOI: https://doi.org/10.1051/e3sconf/202341101043