Waste-to-Resource Transformation: Porous Carbon Materials Derived from Distiller's Grains for Efficient Adsorption of Light Gaseous Hydrocarbons.

ABSTRACT: The efficient separation of light gaseous hydrocarbons, particularly the extraction of propane (C₃H₈) from natural gas, is critical for optimizing petroleum refining processes and reducing energy consumption. In this study, we demonstrate the synthesis of cost-effective porous carbon adsorbents derived from waste distiller's grains using an alkali-ion activation approach. By tuning the activating agent-to-precursor ratio, we systematically controlled the pore structure of the resulting materials, leading to a proportional increase in the specific surface area with higher activating agent concentrations. The optimized adsorbent, designated AC-3-800, exhibited exceptional performance at 273 K and 1 bar, achieving adsorption capacities of 14.87 mmol g^-1 for C<

SUBMITTER: Guo J 

PROVIDER: S-EPMC12290655 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature