Greener and sustainable production of bioethylene from bioethanol: current status, opportunities and perspectives

The economic value of bioethylene produced from bioethanol dehydration is remarkable due to its extensive usage in the petrochemical industry. Bioethylene is produced through several routes, such as steam cracking of hydrocarbons from fossil fuel and dehydration of bioethanol, which can be produced...

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Bibliographic Details
Published in:Reviews in chemical engineering 2022-02, Vol.38 (2), p.185-207
Main Authors: Jamil, Farrukh, Aslam, Muhammad, Al-Muhtaseb, Ala’a H., Bokhari, Awais, Rafiq, Sikander, Khan, Zakir, Inayat, Abrar, Ahmed, Ashfaq, Hossain, Shakhawat, Khurram, Muhammad Shahzad, Abu Bakar, Muhammad S.
Format: Article
Language:English
Subjects:
bioethanol
bioethylene
Biofuels
Biomass
catalyst
Catalysts
Commercialization
Crude oil
Dehydration
Depletion
Economics
Ethylene
Fermentation
Fossil fuels
Nuclear fuels
Selectivity
Substrates
techno-economic feasibility
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Summary:The economic value of bioethylene produced from bioethanol dehydration is remarkable due to its extensive usage in the petrochemical industry. Bioethylene is produced through several routes, such as steam cracking of hydrocarbons from fossil fuel and dehydration of bioethanol, which can be produced through fermentation processes using renewable substrates such as glucose and starch. The rise in oil prices, environmental issues due to toxic emissions caused by the combustion of fossil fuel and depletion of fossil fuel resources have led a demand for an alternative pathway to produce green ethylene. One of the abundant alternative renewable sources for bioethanol production is biomass. Bioethanol produced from biomass is alleged to be a competitive alternative to bioethylene production as it is environmentally friendly and economical. In recent years, many studies have investigated catalysts and new reaction engineering pathways to enhance the bioethylene yield and to lower reaction temperature to drive the technology toward economic feasibility and practicality. This paper critically reviews bioethylene production from bioethanol in the presence of different catalysts, reaction conditions and reactor technologies to achieve a higher yield and selectivity of ethylene. Techno-economic and environmental assessments are performed to further development and commercialization. Finally, key issues and perspectives that require utmost attention to facilitate global penetration of technology are highlighted.
ISSN:0167-8299
2191-0235
DOI:10.1515/revce-2019-0026