In-situ catalytic pyrolysis of peanut shells using modified natural zeolite
In-situ catalytic pyrolysis of peanut (Arachis hypogaea) shells was investigated employing modified clinoptilolite. Likewise, conventional pyrolysis of the shells was explored to quantify the deoxygenation degree of bio-oil. Two solid catalysts obtained from natural clinoptilolite were used: one whi...
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todo:paper_03783820_v159_n_p160_GurevichMessina2023-10-03T15:32:18Z In-situ catalytic pyrolysis of peanut shells using modified natural zeolite Gurevich Messina, L.I. Bonelli, P.R. Cukierman, A.L. Bio-oil quality improvement Catalytic pyrolysis Clinoptilolite Peanut shells Biofuels Catalysts Chemical reactors Fourier transform infrared spectroscopy Ion exchange Oilseeds Pyrolysis Scanning electron microscopy Shells (structures) Zeolites Bio oil Catalytic pyrolysis Clinoptilolites Ion-exchange treatment Modified clinoptilolite Natural clinoptilolite Peanut shells Pyridine adsorption Catalytic cracking In-situ catalytic pyrolysis of peanut (Arachis hypogaea) shells was investigated employing modified clinoptilolite. Likewise, conventional pyrolysis of the shells was explored to quantify the deoxygenation degree of bio-oil. Two solid catalysts obtained from natural clinoptilolite were used: one which retained most of the native cations and another one subjected to ion exchange treatment to develop Brønsted acid sites. These catalysts were characterized using different techniques, such as scanning electron microscopy with X-ray microanalysis, Fourier transform infrared spectroscopy by pyridine adsorption, and nitrogen sorptometry. Assays in a bench scale installation based on a fixed bed reactor were conducted at 500 °C and the yields of the three kinds of pyrolysis products (bio-oil, bio-char and gases) were determined. Likewise, the composition and other physical properties of the bio-oil and gases were investigated. Both catalysts led to reduce the oxygen content of the bio-oil, improving its high heating value. On the other hand, catalytic pyrolysis promoted a slight reduction in bio-oil production at expenses of an increase in gases generation. The catalyst subjected to ion exchange performed better than the native form as less water was generated in the catalytic cracking. © 2017 Elsevier B.V. Fil:Bonelli, P.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cukierman, A.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03783820_v159_n_p160_GurevichMessina |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Bio-oil quality improvement Catalytic pyrolysis Clinoptilolite Peanut shells Biofuels Catalysts Chemical reactors Fourier transform infrared spectroscopy Ion exchange Oilseeds Pyrolysis Scanning electron microscopy Shells (structures) Zeolites Bio oil Catalytic pyrolysis Clinoptilolites Ion-exchange treatment Modified clinoptilolite Natural clinoptilolite Peanut shells Pyridine adsorption Catalytic cracking |
spellingShingle |
Bio-oil quality improvement Catalytic pyrolysis Clinoptilolite Peanut shells Biofuels Catalysts Chemical reactors Fourier transform infrared spectroscopy Ion exchange Oilseeds Pyrolysis Scanning electron microscopy Shells (structures) Zeolites Bio oil Catalytic pyrolysis Clinoptilolites Ion-exchange treatment Modified clinoptilolite Natural clinoptilolite Peanut shells Pyridine adsorption Catalytic cracking Gurevich Messina, L.I. Bonelli, P.R. Cukierman, A.L. In-situ catalytic pyrolysis of peanut shells using modified natural zeolite |
topic_facet |
Bio-oil quality improvement Catalytic pyrolysis Clinoptilolite Peanut shells Biofuels Catalysts Chemical reactors Fourier transform infrared spectroscopy Ion exchange Oilseeds Pyrolysis Scanning electron microscopy Shells (structures) Zeolites Bio oil Catalytic pyrolysis Clinoptilolites Ion-exchange treatment Modified clinoptilolite Natural clinoptilolite Peanut shells Pyridine adsorption Catalytic cracking |
description |
In-situ catalytic pyrolysis of peanut (Arachis hypogaea) shells was investigated employing modified clinoptilolite. Likewise, conventional pyrolysis of the shells was explored to quantify the deoxygenation degree of bio-oil. Two solid catalysts obtained from natural clinoptilolite were used: one which retained most of the native cations and another one subjected to ion exchange treatment to develop Brønsted acid sites. These catalysts were characterized using different techniques, such as scanning electron microscopy with X-ray microanalysis, Fourier transform infrared spectroscopy by pyridine adsorption, and nitrogen sorptometry. Assays in a bench scale installation based on a fixed bed reactor were conducted at 500 °C and the yields of the three kinds of pyrolysis products (bio-oil, bio-char and gases) were determined. Likewise, the composition and other physical properties of the bio-oil and gases were investigated. Both catalysts led to reduce the oxygen content of the bio-oil, improving its high heating value. On the other hand, catalytic pyrolysis promoted a slight reduction in bio-oil production at expenses of an increase in gases generation. The catalyst subjected to ion exchange performed better than the native form as less water was generated in the catalytic cracking. © 2017 Elsevier B.V. |
format |
JOUR |
author |
Gurevich Messina, L.I. Bonelli, P.R. Cukierman, A.L. |
author_facet |
Gurevich Messina, L.I. Bonelli, P.R. Cukierman, A.L. |
author_sort |
Gurevich Messina, L.I. |
title |
In-situ catalytic pyrolysis of peanut shells using modified natural zeolite |
title_short |
In-situ catalytic pyrolysis of peanut shells using modified natural zeolite |
title_full |
In-situ catalytic pyrolysis of peanut shells using modified natural zeolite |
title_fullStr |
In-situ catalytic pyrolysis of peanut shells using modified natural zeolite |
title_full_unstemmed |
In-situ catalytic pyrolysis of peanut shells using modified natural zeolite |
title_sort |
in-situ catalytic pyrolysis of peanut shells using modified natural zeolite |
url |
http://hdl.handle.net/20.500.12110/paper_03783820_v159_n_p160_GurevichMessina |
work_keys_str_mv |
AT gurevichmessinali insitucatalyticpyrolysisofpeanutshellsusingmodifiednaturalzeolite AT bonellipr insitucatalyticpyrolysisofpeanutshellsusingmodifiednaturalzeolite AT cukiermanal insitucatalyticpyrolysisofpeanutshellsusingmodifiednaturalzeolite |
_version_ |
1782028480565739520 |