Investigation of the parameters of the process of obtaining low-sulfur coke from heavy oil residues in the presence of a recycling agentNurdaulet Buzayev, Yermek Aubakirov, Firuza Akhmetova, Manshuk Ibrayeva, Shynar Sanyazova and Zhazira MukazhanovaMATEC Web Conf., 340 (2021) 01005DOI: https://doi.org/10.1051/matecconf/202134001005