Brandon Han Hoe Goh (Author), Cheng Tung Chong (Author), Hwai Chyuan Ong (Author), Tine Seljak (Author), Tomaž Katrašnik (Author), Viktor Józsa (Author), Jo-Han Ng (Author), Bo Tian (Author), Srinibas Karmarkar (Author), Veeramuthu Ashokkumar (Author)

Abstract

Sustainable Aviation Fuel (SAF) has become an important measure in the aviation industry’s efforts to mitigate carbon emissions and reduce their overall environmental impacts. However, commercial usage is relatively stunted due to a plethora of drawbacks in the production process and economic feasibility of the fuel. In this study, the currently accepted technologies for producing synthetic jet fuels under the American Society for Testing Material (ASTM D7566) standard specification for aviation turbine fuel are reviewed. The emphasis is placed in terms of their reactions, type of catalysts used for the conversion pathways of Fisher-Tropsch (FT), Hydroprocessed Esters and Fatty Acids (HEFA) and Alcohol-to-Jet (ATJ), and the use of biomass resources as feedstock. The advancement in the production process and physicochemical properties of the uncertified biojet fuels are reviewed and discussed. Generally, Co- and Fe-based catalysts are commonly used for the FT process, while bimetallic catalysts consisting of Pt, Pd, Ni and Mo have shown excellent activities and selectivities for the HEFA process. For the ATJ process, zeolites such as HZSM-5, beta and SAPO have shown remarkable ethanol dehydration efficiency, while TiO2 and ferrierite have been studied for the combined iso-butanol dehydration and oligomerisation processes. Fundamental factors influencing the reaction efficiency including the feedstock properties, reaction conditions, catalytic reusability and catalyst supports are discussed. Finally, the key challenges and prospects for biojet fuel commercialisation are addressed.

Keywords

biojet fuel;catalyst;production pathway;sustainable aviation fuel;hydroprocessed esters;fatty acids;

Data

Language: English
Year of publishing:
Typology: 1.02 - Review Article
Organization: UL FS - Faculty of Mechanical Engineering
UDC: 662:629.7:502.131.1
COBISS: 98610435 Link will open in a new window
ISSN: 0196-8904
Views: 115
Downloads: 15
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Other data

Secondary language: Slovenian
Secondary keywords: biojet gorivo;katalizatorji;proizvodna pot;trajnostno letalsko gorivo;hidroprocesirani estri;maščobne kisline;
Type (COBISS): Article
Embargo end date (OpenAIRE): 2024-01-01
Pages: str. 1-24
Issue: ǂVol. ǂ251
Chronology: Jan. 2022
DOI: 10.1016/j.enconman.2021.114974
ID: 14785338