Biocrude oil production via hydrothermal liquefaction of food waste in a simplified high-throughput reactor. (December 2021)

• Record Type: Journal Article
• Authors: Saengsuriwong, Ruetai; Onsree, Thossaporn; Phromphithak, Sanphawat; Tippayawong, Nakorn
• Is Part Of: Bioresource technology. Volume 341(2021)
• Publication Date: 2021-12
• Subjects: Biomass -- Biofuels -- Hot compressed water -- Renewable energy -- Wet pyrolysis; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2021.125750
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: Organic biocrude oil generated from hydrothermal processing of food waste. Over 55% total liquid yields obtained, about 73% of which was biocrude. GCxGC/TOF-MS used in chemical analysis of organic biocrude and aqueous products. Abstract: In this study, the hydrothermal liquefaction of food waste was investigated for generating bio-oils or biocrudes using a simplified high-throughput reactor. Different operating conditions were parametrically tested for obtaining maximum yield of biocrudes at temperatures from 280 to 340 °C and sample-to-water mixture ratios from 1:3 to 1:7, with 30 min residence time. The biocrude yields were found to increase significantly with increasing temperature and mixture ratio. A maximum biocrude yield of approximately 40% w/w dry basis (from a total liquid product yield of over 56% w/w) and energy recovery of over 70% were obtained at 340 °C and a mixture ratio of 1:7. High heating values of the resulting biocrude and solid residue were remarkably better than those of the raw material. Fatty acids, amides, N-containing compounds, and cyclic ketones were identified to be the main components of the biocrudes using advanced GCxGC/TOF-MS.