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Carbon Adsorbents from Petroleum Resids

In hydrodesulfurization of petroleum resids with preliminary deasphalting with propane, propane–butane, and naphtha, resins and asphaltenes of different degrees of concentration are obtained in addition to the basic products [1]. These resources are important because of processing of heavy, resinous, and medium-sulfur crude oils. They are used as feedstock for production of products used in different branches of the national economy, which increases the profitability of crude oil refining as a whole [1, 2]. For example, gaseous carbons, which have higher selectivity than industrial adsorbents, can be produced with cracked tar [3].