The effect of pyrolysis atmosphere on bio-oil yields and structure

ÖNAL E., Uzun B. B., PÜTÜN A. E.

INTERNATIONAL JOURNAL OF GREEN ENERGY, vol.14, no.1, pp.1-8, 2017 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 14 Issue: 1
  • Publication Date: 2017
  • Doi Number: 10.1080/15435075.2014.952421
  • Journal Name: INTERNATIONAL JOURNAL OF GREEN ENERGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1-8
  • Keywords: Almond shell pyrolysis, bio-oil production, steam pyrolysis, PRODUCT YIELDS, ALMOND SHELLS, CATALYTIC PYROLYSIS, WATER-VAPOR, BIOMASS, TEMPERATURE, ADSORBENTS, FRACTIONS, RESIDUE, ENERGY
  • Anadolu University Affiliated: Yes

Abstract

A food industry waste, almond shell, was pyrolyzed under three different environment static, nitrogen, and steam to produce bio-oil and its derivatives. The oil yield obtained at pyrolysis temperature of 600 degrees C was 24.23% in a static atmosphere, whereas it increased to 27.25% and 33.05% in nitrogen and steam atmospheres, respectively. The bio-oil obtained under steam atmosphere is very efficient due to the production of high liquid and gas yields. Moreover, co-feeding steam during the pyrolysis altered the bio-oil structure by increasing the aliphatics and reducing the asphaltenes. Moreover, steam treatment also increases H/C and heating value of bio-oils. According to the obtained results, steam pyrolysis is an alternative option for future applications in refineries.