Eastman Chemical Company

James Stewart Nelson

Bruce Roger DeBruin

Harold Dail Kimrey, Jr

David Carl Attride

Mark Robert Shelton

Brad William Overturf

Jarvey Eugene Felty, Jr

Jared Moore

Andrew Charles Hiester

Kyle Lyn Collings

Timothy Lee Guinn

Tyler Littrell

John Peter Mykytka

Methods and systems for separating mixed plastic waste are provided herein. The methods generally comprise separating the mixed plastic waste into a PET-enriched stream and one or more PET-depleted streams. The separating may be accomplished using the combinations of two or more density separation stages. Exemplary density separation stages include sink-float separators and centrifugal force separators. The PET-enriched and PET-depleted streams may be recovered and/or directed to downstream chemical recycling processes.

Waste plastic density separation

A commercial scale system and process for chemically modifying wood and then heating the chemically-modified wood. The system/process separates the chemical modification step from the heating step by utilizing two different vessels for the modification and heating steps. The system and process can, in certain situations, include a containment room for preventing escape of vapors from a chemical wood modification reactor, a wood heater, and/or a chemically-modified bundle of wood as the bundle is transported from the wood modification reactor to the wood heater.

Dual vessel chemical modification and heating of wood with optional vapor

Growing community of inventors

Kingsport, TN, United States of America

James Stewart Nelson