Analysis of physicochemical properties of liquefaction bio-oil from food waste

Wei-Hsin Chen, Yu Ying Lin, Hsuah Cheng Liu, Teng Chien Chen, Hung Chun Hung, Chi Hui Chen

Research output: Contribution to journalConference article

Abstract

Recently, several research has been studied on the hydrothermal liquefaction (HTL) of food wastes to obtain bio-oils. However, most of studies do not fully discuss the physicochemical properties of liquefaction bio-oil from food wastes. In this study, the food waste was pretreated with K2CO3 at 100 °C for 1h, then raising to 300 °C for 1h in a semi-pilot reactor to produce the liquefaction bio-oil. To understand the characterization of the liquefaction bio-oil food waste and compare to liquefaction bio-oils from other feedstocks, the bio-oil was analyzed with thermogravimetric analysis (TGA) under nitrogen and air atmosphere was conducted to evaluate the thermal properties. Furthermore, GC/MS was conducted to discover the chemical composition of the bio-oil and compared the results with different kinds of liquefaction bio-oil. The obtained results revealed that the liquefaction bio-oil contains higher heating value (HHV) of 34.79 MJ/kg and the increment was about 53% compared to the original food waste source (22.74 MJ/kg). The maximum boiling point distribution of liquefaction bio-oil appears around 200 °C to 350 °C. Likewise, the ignition temperature and burnout temperature of the liquefaction bio-oil found lower when compare to other liquefaction bio-oils indicating that the bio-oil from the food is much easier to be ignited and burned. Two obviously groups, fatty acids and amides, can be easily distinguished from the GC/MS analysis of the liquefaction bio-oil components which believed mainly be converted by the carbohydrate and protein from the food waste.

Original languageEnglish
Pages (from-to)61-66
Number of pages6
JournalEnergy Procedia
Volume158
DOIs
Publication statusPublished - 2019 Jan 1
Event10th International Conference on Applied Energy, ICAE 2018 - Hong Kong, China
Duration: 2018 Aug 222018 Aug 25

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Liquefaction
Oils
Boiling point
Carbohydrates
Amides
Fatty acids
Feedstocks
Ignition
Thermogravimetric analysis
Thermodynamic properties

All Science Journal Classification (ASJC) codes

  • Energy(all)

Cite this

Chen, Wei-Hsin ; Lin, Yu Ying ; Liu, Hsuah Cheng ; Chen, Teng Chien ; Hung, Hung Chun ; Chen, Chi Hui. / Analysis of physicochemical properties of liquefaction bio-oil from food waste. In: Energy Procedia. 2019 ; Vol. 158. pp. 61-66.
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abstract = "Recently, several research has been studied on the hydrothermal liquefaction (HTL) of food wastes to obtain bio-oils. However, most of studies do not fully discuss the physicochemical properties of liquefaction bio-oil from food wastes. In this study, the food waste was pretreated with K2CO3 at 100 °C for 1h, then raising to 300 °C for 1h in a semi-pilot reactor to produce the liquefaction bio-oil. To understand the characterization of the liquefaction bio-oil food waste and compare to liquefaction bio-oils from other feedstocks, the bio-oil was analyzed with thermogravimetric analysis (TGA) under nitrogen and air atmosphere was conducted to evaluate the thermal properties. Furthermore, GC/MS was conducted to discover the chemical composition of the bio-oil and compared the results with different kinds of liquefaction bio-oil. The obtained results revealed that the liquefaction bio-oil contains higher heating value (HHV) of 34.79 MJ/kg and the increment was about 53{\%} compared to the original food waste source (22.74 MJ/kg). The maximum boiling point distribution of liquefaction bio-oil appears around 200 °C to 350 °C. Likewise, the ignition temperature and burnout temperature of the liquefaction bio-oil found lower when compare to other liquefaction bio-oils indicating that the bio-oil from the food is much easier to be ignited and burned. Two obviously groups, fatty acids and amides, can be easily distinguished from the GC/MS analysis of the liquefaction bio-oil components which believed mainly be converted by the carbohydrate and protein from the food waste.",
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Analysis of physicochemical properties of liquefaction bio-oil from food waste. / Chen, Wei-Hsin; Lin, Yu Ying; Liu, Hsuah Cheng; Chen, Teng Chien; Hung, Hung Chun; Chen, Chi Hui.

In: Energy Procedia, Vol. 158, 01.01.2019, p. 61-66.

Research output: Contribution to journalConference article

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AU - Chen, Wei-Hsin

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AU - Liu, Hsuah Cheng

AU - Chen, Teng Chien

AU - Hung, Hung Chun

AU - Chen, Chi Hui

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