Valorising orange and banana peels: Green catalysts for transesterification and biodiesel production in a circular bioeconomy

Rajak, Amit Kumar; Harikrishna, Madiga; Mahato, Devi Lal; Anandamma, Urupasala; Pothu, Ramyakrishna; Sarangi, Prakash Kumar; Sahoo, Uttam Kumar; Vennu, Vishal; Boddula, Rajender; Karuna, Mallampalli S.L.

doi:10.1016/j.jtice.2024.105804

Journal of the Taiwan Institute of Chemical Engineers

2024

DOI: 10.1016/j.jtice.2024.105804

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Valorising orange and banana peels: Green catalysts for transesterification and biodiesel production in a circular bioeconomy

Amit Kumar Rajak,

Madiga Harikrishna,

Devi Lal Mahato

et al.

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2024

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Cited by 2 publications

References 78 publications

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Potential for Using Composts Produced from Agri-Food Industry Waste as Biocomponents of Liquid and Solid Fuels

Sienkiewicz,

Cwalina,

Obidziński

et al. 2024

Energies

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The growing awareness of the depletion of fossil fuels and numerous environmental issues have led to increased interest in finding natural components that can be used to produce various types of fuels. In this study, composts made from the organic fraction of agri-food waste (i.e., two composts produced in a bioreactor and one obtained from a Municipal Waste Disposal Facility) were evaluated for the first time as potential sources of additives for fuel production. The presence of fatty acid methyl esters was determined using gas chromatography–mass spectrometry (GC-MS/SIM), while the calorific value and heat of combustion of the samples were measured in accordance with the PN-EN ISO 1928:2002 standard using a calorimeter. Chromatographic studies identified the presence of 33 compounds, predominantly unsaturated esters. The highest ester content was noted in the compost obtained from the company, while the lowest content was found in the compost containing grass, buckwheat husk, and apple pomace. Of the studied raw materials, the highest calorific value and heat of combustion on a dry matter basis were observed for the compost containing grass, buckwheat husk, and apple pomace, while the lowest values were recorded for the compost obtained from the company. Based on the obtained results, it can be concluded that composts could serve as biocomponents of fuels.

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Potential for Using Composts Produced from Agri-Food Industry Waste as Biocomponents of Liquid and Solid Fuels

Sienkiewicz,

Cwalina,

Obidziński

et al. 2024

Energies

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Performance and Emission Characteristics of a Small Gas Turbine Engine Using Hexanol as a Biomass-Derived Fuel

Suchocki

2024

Materials

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The global transition to renewable energy has amplified the need for sustainable aviation fuels. This study investigates hexanol, a biomass-derived alcohol, as an alternative fuel for small-scale gas turbines. Experimental trials were conducted on a JETPOL GTM-160 turbine, assessing blends of 25% (He25) and 50% (He50) hexanol with kerosene (JET A) under rotational velocities ranging from 40,000 to 110,000 RPM. The parameters measured included thrust-specific fuel consumption (TSFC), turbine inlet and outlet velocities, and the emission indices of NOx and CO. The results demonstrated that the He25 and He50 blends achieved comparable thermal efficiency to pure JET A at high rotational velocities, despite requiring higher fuel flows due to hexanol’s lower heating value. CO emissions decreased significantly at higher velocities, reflecting improved combustion efficiency with hexanol blends, while NOx emissions exhibited a slight increase, attributed to the oxygen content of the fuel. This study contributes a novel analysis of hexanol-kerosene blends in gas turbines, offering insights into their operational and emission characteristics. These findings underscore hexanol’s potential as an environmentally friendly alternative fuel, aligning with global efforts to reduce fossil fuel dependency and carbon emissions.

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Valorising orange and banana peels: Green catalysts for transesterification and biodiesel production in a circular bioeconomy

Cited by 2 publications

References 78 publications

Potential for Using Composts Produced from Agri-Food Industry Waste as Biocomponents of Liquid and Solid Fuels

Potential for Using Composts Produced from Agri-Food Industry Waste as Biocomponents of Liquid and Solid Fuels

Performance and Emission Characteristics of a Small Gas Turbine Engine Using Hexanol as a Biomass-Derived Fuel

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