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Purification the Solvent for the Production of High-Density Polyethylene

Sustainable Polymer & Energy. 2024, 2(1), 10001;
Department of Petrochemistry and Chemical Technology, Ufa State Petroleum Technological University, Ufa 450062, Russia
Authors to whom correspondence should be addressed.

Received: 04 Sep 2023    Accepted: 11 Jan 2024    Published: 16 Jan 2024   


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 a layer height of the adsorbent layer from 1 to 8 m is considered. Removal of impurities of aromatic and unsaturated hydrocarbons, organosulfur impurities and water ensured the production of high-quality polyethylene. The main characteristics of the adsorption process (the dynamic activity of zeolite NaX, the length of the mass transfer zone) in a wide range of flow rates of the cleaned raw materials are determined, allowing the calculation of the adsorber without applying the principles of large-scale transition. 


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