Environmental impact and energy balance assessment in ethanol production from sugarcane molasses: A life cycle analysis in southern India

Uppalapati, Sudhakar; Jani, S.P.; Raj, J. Bensam; Rajaganapathy, C.; Murugapoopathi, S.; Shangdiar, Sumarlin; Amesho, Kassian T.T.

doi:10.1016/j.rser.2024.114807

Renewable and Sustainable Energy Reviews

2024

DOI: 10.1016/j.rser.2024.114807

|View full text |Cite

Environmental impact and energy balance assessment in ethanol production from sugarcane molasses: A life cycle analysis in southern India

Sudhakar Uppalapati,

S.P. Jani,

J. Bensam Raj

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Brazilian Food Waste as a Substrate for Bioethanol Production

de Abreu,

Silva,

Siqueira

et al. 2024

Foods

View full text Add to dashboard Cite

Food waste (FW) is a common source of contamination, contaminating both soils and water bodies by releasing greenhouse gases. FW holds great potential for biofuel and bioproduct production, which can mitigate its environmental impact and become a valuable addition to the circular bioeconomy. Therefore, this work aimed to investigate the use of food waste as a substrate to produce fermentable sugars and bioethanol. FW was pretreated by lipid removal. Raw and treated FW was hydrolyzed by amylases. Also, FW was hydrolyzed using sulfuric acid under different residence times (20, 40, and 60 min), sulfuric acid concentrations (0.5, 1.0, and 1.5% v·v−1), solid loads (5, 10, and 15% m·v−1), and temperatures (111, 120, and 127 °C). The best reducing sugar concentration was obtained at a 1.5% concentration of sulfuric acid and a 15% solid load applied for 1 h at 127 °C. The acid hydrolysis process was more efficient (76.26% efficiency) than the enzymatic one (72.7%). Bioethanol production was carried out as static submerged fermentation, with Saccharomyces cerevisiae at 10% (humidity m·v−1) being used as the producer and the acid and enzymatic hydrolysates being used as carbon sources. Lipid removal from FW did not influence the acid or enzymatic hydrolytic processes. For fermentation, the highest bioethanol yield was obtained from the acid hydrolysate of raw FW (0.49 kg·kg glicose−1). Thus, the processes used were efficient for bioethanol production, presenting alternatives for sustainable food waste destinations and low-cost biofuel production.

show abstract

Brazilian Food Waste as a Substrate for Bioethanol Production

de Abreu,

Silva,

Siqueira

et al. 2024

Foods

View full text Add to dashboard Cite

show abstract

Nipa-based bioethanol as a renewable pure engine fuel: A preliminary performance testing and carbon footprint quantification

Mateo,

Calderon,

Agrupis

et al. 2024

Int. J. Renew. Energy Dev.

View full text Add to dashboard Cite

The need for alternative fuels remains a growing concern in alleviating the depletion of fossil fuels for transportation to address one of the objectives of the Sustainable Development Goals (SDG 7: Alternative and Clean Energy) despite the emerging use of Electric Vehicles. Nipa fruticans has been introduced as a promising feedstock for bioethanol production, but its performance as a pure engine engine fuel must be determined, and its carbon footprint must be quantified to assess its impact on the environment were this paper aimed. The CO2 emissions of this study was quantified using ISO 14040 methodologies, considering direct and indirect emissions from production to utilization with key ethanol properties tested according to ASTM standards. A carbureted motorcycle was modified to a fuel injection (FI) system to assess fuel performance, with metrics like power output, consumptions, and emissions were evaluated. Results show that nipa-based bioethanol, H95F and H99F, can serve as renewable pure engine fuels, with carbon footprints of 0.2353 and 2.633 kg CO2eq per Liter respectively with 1.08% lower of kg CO2eq per Liter emissions and 32.7% lower production cost compared to fermented sugar. As pure engine fuel resulted in lowering CO emissions by 171.79% and 167.59%; and lower HC emissions 172.89% and 191.34% respectively compared to E10. These findings demonstrated the potential of nipa bioethanol as a clean and sustainable energy solution. It is recommended however that ethanol yield and distillation process be further improved and explore pure ethanol as alternative fuel to hybrid vehicles as 100% renewable vehicles.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Environmental impact and energy balance assessment in ethanol production from sugarcane molasses: A life cycle analysis in southern India

Cited by 2 publications

References 55 publications

Brazilian Food Waste as a Substrate for Bioethanol Production

Brazilian Food Waste as a Substrate for Bioethanol Production

Nipa-based bioethanol as a renewable pure engine fuel: A preliminary performance testing and carbon footprint quantification

Contact Info

Product

Resources

About