Sustainable Polymer & Energy, Volume 2, Issue 1 (March 2024) – 3 articles

The purity of the solvents used in the synthesis of polymers is one of the factors affecting the efficiency and cost-effectiveness of production. The adsorption purification of gasoline fraction with NaX zeolites as a solvent for the production of high-density polyethylene at a large pilot plant with an adsorbent layer height to 8 m is considered. The installation made it possible to record the movement of the mass transfer zone along the height of the adsorbent layer with simultaneous adsorption of several impurities. Mathematical modeling of the process under study is performed. The removal of impurities of aromatic and unsaturated hydrocarbons, organosulfur impurities and water ensured the production of high-quality polyethylene during the test.