Publication detail

Pyrolysis of Colombian spent coffee grounds (SCGs), characterization of bio-oil, and study of its antioxidant properties

MALAGÓN-ROMERO, D. TORRES-VELASQUEZ, A. TINOCO NAVARRO, L. ARRUBLA-VELEZ, J.

Original Title

Pyrolysis of Colombian spent coffee grounds (SCGs), characterization of bio-oil, and study of its antioxidant properties

Type

journal article in Web of Science

Language

English

Original Abstract

Coffee is the second most consumed beverage in the world. Spent coffee grounds (SCGs) are promising raw material for pyrolysis. The Kissinger-Akahira-Sunose model (KAS) and Ozawa-Flynn Wall (OFW), determined the pyrolysis activation energy to be 142.40 and 66.08 kJ/mol, respectively. The pyrolysis products were bio-oil with a 22.5% yield and a calorific power of 28.91 MJ/kg. The bio-oil composition was 50.86% fatty acids, 31.65% linear hydrocarbons, and 11.31% aromatics, as determined by GC-MS. The total phenolic content (TPC) was 362 & PLUSMN; 44 mg GA g(-1), with DPPH activity of 24.8 & PLUSMN; 2% inhibition and antioxidant activity of 108.5 & PLUSMN; 13.6 mg L-1 of Trolox equivalents. The results showed that bio-oil could be used as a biofuel and a source of chemical compounds.

Keywords

Pyrolysis; SCGs; Coffee; Biofuels; Antioxidant activity

Authors

MALAGÓN-ROMERO, D.; TORRES-VELASQUEZ, A.; TINOCO NAVARRO, L.; ARRUBLA-VELEZ, J.

Released

14. 12. 2023

Publisher

TAYLOR & FRANCIS LTD

Location

ABINGDON

ISBN

1478-6451

Periodical

International Journal of Sustainable Energy

Year of study

42

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

811

Pages to

829

Pages count

19

URL

https://www.tandfonline.com/doi/full/10.1080/14786451.2023.2235025

Full text in the Digital Library

http://hdl.handle.net/11012/245195

BibTex

@article{BUT185774,
  author="Dionisio {Malagón-Romero} and Andres C. {Torres-Velasquez} and Lizeth Katherine {Tinoco Navarro} and Juan P. {Arrubla-Velez}",
  title="Pyrolysis of Colombian spent coffee grounds (SCGs), characterization of bio-oil, and study of its antioxidant properties",
  journal="International Journal of Sustainable Energy",
  year="2023",
  volume="42",
  number="1",
  pages="811--829",
  doi="10.1080/14786451.2023.2235025",
  issn="1478-6451",
  url="https://www.tandfonline.com/doi/full/10.1080/14786451.2023.2235025"
}