Production of biodiesel from unused algal biomass in Punjab, India

Abstract Biodiesel from inedible sources has become prominent in last few decades. But it is economically incompatible with petroleum diesel. At the same time, both petro-diesel and biodiesels are concerned with environmental pollution, global warming, etc. Algae, on the other hand, utilize CO2 for...

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Autores principales: Rachan Karmakar, Anita Rajor, Krishnendu Kundu, Nitin Kumar
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Publicado: KeAi Communications Co., Ltd. 2017
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spelling oai:doaj.org-article:b41e184a317742cb80957c66a4ad4c7f2021-12-02T09:28:49ZProduction of biodiesel from unused algal biomass in Punjab, India10.1007/s12182-017-0203-01672-51071995-8226https://doaj.org/article/b41e184a317742cb80957c66a4ad4c7f2017-12-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-017-0203-0https://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract Biodiesel from inedible sources has become prominent in last few decades. But it is economically incompatible with petroleum diesel. At the same time, both petro-diesel and biodiesels are concerned with environmental pollution, global warming, etc. Algae, on the other hand, utilize CO2 for their growth and can minimize some sort of pollution level and results in carbon credit for a country. In Punjab, India, algae are seen to grow in many water bodies. But all those are taken away and dumped in vats. Some of this huge biomass was used for production of biodiesel in this work. Extraction of oil from algae was conducted by using Soxtherm (solvent extraction). An amount of 9 wt% of algal oil was extracted by comparatively costly hexane, whereas 8% extraction was done by cheaper acetone. In the transesterification reaction, molar ratio (methanol: oil) of 6:1, catalyst (KOH) concentration of 3 wt%, reaction temperature of 60 °C, 60 min reaction time and a settling time of 2.5 h were found to be optimum conditions to get maximum ester with minimum free fatty acid content and viscosity. A statistical analysis for the transesterification procedure also showed a methanol-to-oil molar ratio of 6:1 and catalyst concentration of 3 wt% to be the optimum. Characterization of biodiesel was done and compared with ASTM/BIS standards. Most important properties of biodiesel ester like viscosity (3.12 cSt or 3.12 mm2/s), cloud and pour point (−1 and −6 °C, respectively), flash and fire point (153 and 158 °C), carbon residue content (0.03%), acid number (0.36 mg of KOH/gm) were within the range of concerned standards.Rachan KarmakarAnita RajorKrishnendu KunduNitin KumarKeAi Communications Co., Ltd.articleAlgaeBiodieselBiodiesel propertiesTransesterificationOil extractionScienceQPetrologyQE420-499ENPetroleum Science, Vol 15, Iss 1, Pp 164-175 (2017)
institution DOAJ
collection DOAJ
language EN
topic Algae
Biodiesel
Biodiesel properties
Transesterification
Oil extraction
Science
Q
Petrology
QE420-499
spellingShingle Algae
Biodiesel
Biodiesel properties
Transesterification
Oil extraction
Science
Q
Petrology
QE420-499
Rachan Karmakar
Anita Rajor
Krishnendu Kundu
Nitin Kumar
Production of biodiesel from unused algal biomass in Punjab, India
description Abstract Biodiesel from inedible sources has become prominent in last few decades. But it is economically incompatible with petroleum diesel. At the same time, both petro-diesel and biodiesels are concerned with environmental pollution, global warming, etc. Algae, on the other hand, utilize CO2 for their growth and can minimize some sort of pollution level and results in carbon credit for a country. In Punjab, India, algae are seen to grow in many water bodies. But all those are taken away and dumped in vats. Some of this huge biomass was used for production of biodiesel in this work. Extraction of oil from algae was conducted by using Soxtherm (solvent extraction). An amount of 9 wt% of algal oil was extracted by comparatively costly hexane, whereas 8% extraction was done by cheaper acetone. In the transesterification reaction, molar ratio (methanol: oil) of 6:1, catalyst (KOH) concentration of 3 wt%, reaction temperature of 60 °C, 60 min reaction time and a settling time of 2.5 h were found to be optimum conditions to get maximum ester with minimum free fatty acid content and viscosity. A statistical analysis for the transesterification procedure also showed a methanol-to-oil molar ratio of 6:1 and catalyst concentration of 3 wt% to be the optimum. Characterization of biodiesel was done and compared with ASTM/BIS standards. Most important properties of biodiesel ester like viscosity (3.12 cSt or 3.12 mm2/s), cloud and pour point (−1 and −6 °C, respectively), flash and fire point (153 and 158 °C), carbon residue content (0.03%), acid number (0.36 mg of KOH/gm) were within the range of concerned standards.
format article
author Rachan Karmakar
Anita Rajor
Krishnendu Kundu
Nitin Kumar
author_facet Rachan Karmakar
Anita Rajor
Krishnendu Kundu
Nitin Kumar
author_sort Rachan Karmakar
title Production of biodiesel from unused algal biomass in Punjab, India
title_short Production of biodiesel from unused algal biomass in Punjab, India
title_full Production of biodiesel from unused algal biomass in Punjab, India
title_fullStr Production of biodiesel from unused algal biomass in Punjab, India
title_full_unstemmed Production of biodiesel from unused algal biomass in Punjab, India
title_sort production of biodiesel from unused algal biomass in punjab, india
publisher KeAi Communications Co., Ltd.
publishDate 2017
url https://doaj.org/article/b41e184a317742cb80957c66a4ad4c7f
work_keys_str_mv AT rachankarmakar productionofbiodieselfromunusedalgalbiomassinpunjabindia
AT anitarajor productionofbiodieselfromunusedalgalbiomassinpunjabindia
AT krishnendukundu productionofbiodieselfromunusedalgalbiomassinpunjabindia
AT nitinkumar productionofbiodieselfromunusedalgalbiomassinpunjabindia
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