Production of Bio-oil via Catalytic Pyrolysis of Medlar Seeds

The pyrolysis of medlar seeds was performed at 350, 450, 550, and 650 °C with and without K2CO3, MgO, and expanded perlite (10 wt%). The maximum dichloromethane extract yield (6.70 wt%) was obtained at 450 °C in the pyrolysis experiments without catalyst, while the maximum bio-oil yield (50.3 wt%) w...

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Main Authors: Fatıma Topak, Mehmet Kuddusi Akalın
Format: Article
Language:English
Published: North Carolina State University 2023-03-01
Series:BioResources
Subjects:
Online Access:https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/22456
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author Fatıma Topak
Mehmet Kuddusi Akalın
author_facet Fatıma Topak
Mehmet Kuddusi Akalın
author_sort Fatıma Topak
collection DOAJ
description The pyrolysis of medlar seeds was performed at 350, 450, 550, and 650 °C with and without K2CO3, MgO, and expanded perlite (10 wt%). The maximum dichloromethane extract yield (6.70 wt%) was obtained at 450 °C in the pyrolysis experiments without catalyst, while the maximum bio-oil yield (50.3 wt%) was obtained at 650 °C in the presence of perlite. The dichloromethane extract and bio-oil yields decreased noticeably with the use of MgO and K2CO3. The bio-oils obtained from the non-catalytic runs mainly consisted of phenolic compounds. The use of catalysts had a noticeable effect on the composition and higher heating values of the bio-oils. The use of K2CO3 increased the relative content of 2-methoxyphenol at all tested temperatures and the relative content of 2,6-dimethoxyphenol and 2,6-dimethoxy-4-methylphenol increased with the use of expanded perlite at above 550 °C, while the use of MgO led to an increase in the relative content of 2,6-dimethoxy-4-methylphenol at above 550 °C. The bio-oil with the maximum higher heating value (30.4 MJ/kg) was obtained at 450 °C with the use of perlite. This study showed that medlar seeds are a good alternative source of waste biomass in the production of bio-oil that can be used as a biofuel.
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spelling doaj.art-d169c71ed2e943f8a8c666c2f0983ff22023-06-26T18:55:57ZengNorth Carolina State UniversityBioResources1930-21262023-03-0118231443159475Production of Bio-oil via Catalytic Pyrolysis of Medlar SeedsFatıma Topak0Mehmet Kuddusi Akalın1Department of Environmental Engineering, Karabuk UniversityDepartment of Environmental Engineering, Karabuk UniversityThe pyrolysis of medlar seeds was performed at 350, 450, 550, and 650 °C with and without K2CO3, MgO, and expanded perlite (10 wt%). The maximum dichloromethane extract yield (6.70 wt%) was obtained at 450 °C in the pyrolysis experiments without catalyst, while the maximum bio-oil yield (50.3 wt%) was obtained at 650 °C in the presence of perlite. The dichloromethane extract and bio-oil yields decreased noticeably with the use of MgO and K2CO3. The bio-oils obtained from the non-catalytic runs mainly consisted of phenolic compounds. The use of catalysts had a noticeable effect on the composition and higher heating values of the bio-oils. The use of K2CO3 increased the relative content of 2-methoxyphenol at all tested temperatures and the relative content of 2,6-dimethoxyphenol and 2,6-dimethoxy-4-methylphenol increased with the use of expanded perlite at above 550 °C, while the use of MgO led to an increase in the relative content of 2,6-dimethoxy-4-methylphenol at above 550 °C. The bio-oil with the maximum higher heating value (30.4 MJ/kg) was obtained at 450 °C with the use of perlite. This study showed that medlar seeds are a good alternative source of waste biomass in the production of bio-oil that can be used as a biofuel.https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/22456pyrolysismedlar seedsbio-oil
spellingShingle Fatıma Topak
Mehmet Kuddusi Akalın
Production of Bio-oil via Catalytic Pyrolysis of Medlar Seeds
BioResources
pyrolysis
medlar seeds
bio-oil
title Production of Bio-oil via Catalytic Pyrolysis of Medlar Seeds
title_full Production of Bio-oil via Catalytic Pyrolysis of Medlar Seeds
title_fullStr Production of Bio-oil via Catalytic Pyrolysis of Medlar Seeds
title_full_unstemmed Production of Bio-oil via Catalytic Pyrolysis of Medlar Seeds
title_short Production of Bio-oil via Catalytic Pyrolysis of Medlar Seeds
title_sort production of bio oil via catalytic pyrolysis of medlar seeds
topic pyrolysis
medlar seeds
bio-oil
url https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/22456
work_keys_str_mv AT fatımatopak productionofbiooilviacatalyticpyrolysisofmedlarseeds
AT mehmetkuddusiakalın productionofbiooilviacatalyticpyrolysisofmedlarseeds