A renewable lignin-derived bio-oil for boosting the oxidation stability of biodiesel

Yusuf Umar; Orlando Velasco; Omar Y. Abdelaziz; Omar Aboelazayem; Mamdouh A. Gadalla; Christian P. Hulteberg; Basudeb Saha

doi:10.1016/j.renene.2021.10.061

A renewable lignin-derived bio-oil for boosting the oxidation stability of biodiesel

Yusuf Umar, Orlando Velasco, Omar Y. Abdelaziz, Omar Aboelazayem, Mamdouh A. Gadalla, Christian P. Hulteberg, Basudeb Saha

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

The valorisation of lignin is being increasingly recognised to improve the economics of pulp and paper making mills. In the present study, an integrated lignin–glycerol valorisation strategy is introduced with an overarching aim for enhancing the process value chains. LignoBoost kraft lignin was subjected to base-catalysed depolymerisation using glycerol as a co-solvent. The generated bio-oil was used as a renewable additive to biodiesel for enhancing its oxygen stability. The influence of three independent parameters including temperature, time and glycerol amount on lignin depolymerisation was investigated. Response surface methodology was applied to design the experiments and to optimise the process for maximising the yield and antioxidant impact of bio-oil. The results showed that glycerol has a positive qualitative and quantitative impact on the produced bio-oil, where an enhancement in the yield (up to 23.8%) and antioxidant activity (up to 99 min induction period) were achieved using the PetroOxy method (EN16091). The addition of 1 wt% bio-oil to biodiesel has led to an improvement in the oxidation stability over a neat sample of up to ∼340%, making it compliant with European standard (EN14214). The proposed process presents a biorefinery paradigm for the integrated utilisation of waste cooking oil, lignin and glycerol.

Original language	English
Pages (from-to)	867-878
Number of pages	12
Journal	Renewable Energy
Volume	182
DOIs	https://doi.org/10.1016/j.renene.2021.10.061
Publication status	Published - 31 Oct 2021
Externally published	Yes

Bibliographical note

Funding Information:
This paper is based upon the work supported by the British Council UK and Science, Technology & Innovation Funding Authority (STDF) Egypt through the Newton Institutional Links Programme (IDs 261862377 and 27738 ), the Swedish Foundation for Strategic Research ( RBP14-0052 ), the Swedish Energy Agency ( 45241-1 and 49701-1 ), London South Bank University , and Lund University .

Publisher Copyright:
© 2021 Elsevier Ltd

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10.1016/j.renene.2021.10.061

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title = "A renewable lignin-derived bio-oil for boosting the oxidation stability of biodiesel",

abstract = "The valorisation of lignin is being increasingly recognised to improve the economics of pulp and paper making mills. In the present study, an integrated lignin–glycerol valorisation strategy is introduced with an overarching aim for enhancing the process value chains. LignoBoost kraft lignin was subjected to base-catalysed depolymerisation using glycerol as a co-solvent. The generated bio-oil was used as a renewable additive to biodiesel for enhancing its oxygen stability. The influence of three independent parameters including temperature, time and glycerol amount on lignin depolymerisation was investigated. Response surface methodology was applied to design the experiments and to optimise the process for maximising the yield and antioxidant impact of bio-oil. The results showed that glycerol has a positive qualitative and quantitative impact on the produced bio-oil, where an enhancement in the yield (up to 23.8%) and antioxidant activity (up to 99 min induction period) were achieved using the PetroOxy method (EN16091). The addition of 1 wt% bio-oil to biodiesel has led to an improvement in the oxidation stability over a neat sample of up to ∼340%, making it compliant with European standard (EN14214). The proposed process presents a biorefinery paradigm for the integrated utilisation of waste cooking oil, lignin and glycerol.",

author = "Yusuf Umar and Orlando Velasco and Abdelaziz, {Omar Y.} and Omar Aboelazayem and Gadalla, {Mamdouh A.} and Hulteberg, {Christian P.} and Basudeb Saha",

note = "Funding Information: This paper is based upon the work supported by the British Council UK and Science, Technology & Innovation Funding Authority (STDF) Egypt through the Newton Institutional Links Programme (IDs 261862377 and 27738 ), the Swedish Foundation for Strategic Research ( RBP14-0052 ), the Swedish Energy Agency ( 45241-1 and 49701-1 ), London South Bank University , and Lund University . Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

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AU - Gadalla, Mamdouh A.

AU - Hulteberg, Christian P.

AU - Saha, Basudeb

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AB - The valorisation of lignin is being increasingly recognised to improve the economics of pulp and paper making mills. In the present study, an integrated lignin–glycerol valorisation strategy is introduced with an overarching aim for enhancing the process value chains. LignoBoost kraft lignin was subjected to base-catalysed depolymerisation using glycerol as a co-solvent. The generated bio-oil was used as a renewable additive to biodiesel for enhancing its oxygen stability. The influence of three independent parameters including temperature, time and glycerol amount on lignin depolymerisation was investigated. Response surface methodology was applied to design the experiments and to optimise the process for maximising the yield and antioxidant impact of bio-oil. The results showed that glycerol has a positive qualitative and quantitative impact on the produced bio-oil, where an enhancement in the yield (up to 23.8%) and antioxidant activity (up to 99 min induction period) were achieved using the PetroOxy method (EN16091). The addition of 1 wt% bio-oil to biodiesel has led to an improvement in the oxidation stability over a neat sample of up to ∼340%, making it compliant with European standard (EN14214). The proposed process presents a biorefinery paradigm for the integrated utilisation of waste cooking oil, lignin and glycerol.

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A renewable lignin-derived bio-oil for boosting the oxidation stability of biodiesel

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