Versión en Español Type of post: Fact sheet. Series: Biobased chemicals – Alcohols. Publication date: 08/06/2021. Last update: 08/06/2021. Description - Diol with 3 carbon atoms. - It is a colourless viscous liquid that is miscible with water. Applications - Chemical building block in the production of polymers such as polytrimethylene terephthalate (PTT). - Formulation of a variety of industrial products (composites, adhesives, laminates, coatings, moldings, aliphatic polyesters, copolyesters). - Solvent. - Antifreeze. Conventional petrochemical routes - Hydration of acrolein. - Hydroformylation of ethylene oxide to 3-hydroxypropionaldehyde / Hydrogenation of 3-hydroxypropionaldehyde. Main biobased routes - Direct fermentation of sugars or glycerol. Actors – Active projects - DuPont Tate & Lyle BioProducts [Direct fermentation from sugar] (1) In 2000, DuPont, in association with Genencor, developed a patented process to produce PDO using plant-derived starch in place of ...