Due to environmental concerns and cost issues, coal is currently being phased out from usage in electricity production. Regardless, there remains a massive stockpile of coal reserves along with a large industrial complex and a robust distribution/processing infrastructure. As such, coal should be considered for usage in other energy areas. Since coal is simply a solid hydrocarbon, it can be converted over for usage as a transportation fuel. The Fischer-Tropsch process that underlies this conversion is well established with some countries like South Africa currently using it at large scales. Unfortunately, this conversion process has a large carbon footprint, even when using carbon capture technology. However, the blending of coal-based fuels with biodiesel has been found to be more carbon neutral than standard diesel or biodiesel alone. Additionally, coal can be used as an alternate to methane for hydrogen production. Given carbon capture technologies and the existing coal infrastructure, these two uses of coal provide opportunities for a sustainable and economical use of coal as a transportation fuel.
BowenBHIrwinMW. Coal characteristics. Presentation: Purdue University Indiana Center for Coal Technology Research, October 2008.
2.
NyashinaGSVershininaKYDmitrienkoMA,et al.Environmental benefits and drawbacks of composite fuels based on industrial wastes and different ranks of coal. J Hazard Mater2018; 347: 359–370.
3.
HeydariMRahmanMGuptaR. Kinetic study and thermal decomposition behavior of lignite coal. Int J Chem Eng2015; 2015: 1–9.
4.
AliAZhaoC. Direct liquefaction techniques on lignite coal: A review. Chin J Catal2020; 41: 375–389.
WuSLvQLiuX,et al.Study on correlations of coal chemical properties based on database of real-time data. Appl Energy2017; 204: 1115–1123.
9.
DunhamJTRampacekCHenrieTA. High-sulfur coal for generating electricity. Science1974; 184: 346–351.
10.
CenniRJanischBSpliethoff H,et al.Legislative and environmental issues on the use of ash from coal and municipal sewage sludge co-firing as construction material. Waste Manage2001; 21: 17–31.
JakobMSteckelJCJotzoF, et al.The future of coal in a carbon-constrained climate. Nat Clim Chang2010; 8: 704–707.
13.
BlondeelMVan de GraafT. Toward a global coal mining moratorium? A comparative analysis of coal mining policies in the USA, China, India and Australia. Clim Change2018; 150: 89–101.
US Energy Information Administration. Coal Annual Report. Report for the US Department of Energy. 2020.
17.
HeadleyTBezdekR. How many coal-dependent jobs are there and how important are they. Fortnightly Magazine. https://www.fortnightly.com/fortnightly/2020/06/how-many-coal-dependent-jobs-are-there-and-how-important-are-they (2020, accessed 10 July 2021).
18.
Galli RobertsonAM. Priviledged accounts in the debate over coal-fired power in the United States. Society & Natural Resources2021; 34: 188–207.
19.
SteynbergAP. Introduction to Fischer-Tropsch technology. In: SteynbergADryM (eds) Studies in surface science and catalysis2004, Vol. 152. Elsevier, pp. 1–63.
20.
LiuGLarsonEDWilliamsRH, et al.Making Fischer-Tropsch fuels and electricity from coal and biomass: Performance and cost analysis. Energy Fuels2011; 1: 415–437.
21.
De KlerkA. Transport fuel: Biomass-, coal-, gas-and waste-to-liquids processes. In: LetcherTM (ed.) Future energy: improved, sustainable, and clean options for our planet. 3rd ed. Elsevier, 2020, pp. 199–226.
22.
Welker-NieuwoudtC. The Fischer-Tropsch process: Generating synthetic fuels. Quest2011; 7: 11–13.
De la OsaARDe LucasARomeroA,et al.Influence of the catalytic support on the industrial Fischer–Tropsch synthetic diesel production. Catal Today2011; 176: 298–302.
25.
SchulzH. Short history and present trends of Fischer–Tropsch synthesis. Appl Catal, A1999; 186: 3–12.
26.
OndreyG. A primer on coal-to-liquids. Chem Eng2009; 116: 23.
27.
WhiteCGrayD. Production of zero sulfur diesel fuel from domestic coal: Configurational options to reduce environment impact. Report, National Energy Technology Laboratory, USA, December2011.
OuXYanXZhangX. Using coal for transportation in China: Life cycle GHG of coal-based fuel and electric vehicle, and policy implications. Int J Greenhouse Gas Control2010; 5: 878–887.
35.
JaramilloPSamarasCWakeleyH, et al.Greenhouse gas implications of using coal for transportation: Life cycle assessment of coal-to-liquids, plug-in hybrids, and hydrogen pathways. Energy Policy2009; 7: 2689–2695.
36.
AtashiHVeiskaramiS. Green fuel from coal via Fischer–Tropsch process: Scenario of optimal condition of process and modelling. Int J Coal Sci Technol2018; 2: 0–243.
37.
XinlingLZhenH. Emission reduction potential of using gas-to-liquid and dimethyl ether fuels on a turbocharged diesel engine. Sci Total Environ2009; 7: 2234–2244.
38.
GangwalSKMcCabeK. Small-Scale Coal-Biomass to Liquids Production Using Highly Selective Fischer-Tropsch Synthesis. Report, US Department of Energy Office of Scientific and Technical Information, September2015.
39.
XiaHMeiLJiahuiY. Research on emissions controlling of coal-made Fischer–Tropsch process diesel/methanol unconventional pollutants. Energy Sources Part A2020; 42: 1–14.
40.
WilliamsR. Electricity decarbonization: Coproduction of power and synfuels with CCS vs stand-alone power with CCS. In: World CTL Conference, Beijing, 2010.
41.
KreutzTGLarsonEDLiuG, et al.Fischer-Tropsch fuels from coal and biomass. In: 25th Annual International Pittsburgh Coal Conference. Pittsburgh, Pennsylvania, September2008, Paper no 2.10.
42.
SchragD. Coal as a low-carbon fuel. Nat Geosci2009; 2: 818–820.
43.
WilliamsRHLarsonEDJinH. Synthetic fuels in a world with high oil and carbon prices. In: International Conference on Greenhouse Gas Control Technologies, Trondheim, Norway, 19–22 June2006, paper number 031903, pp. 1–6.
44.
XieXWangMHanJ. Assessment of fuel-cycle energy use and greenhouse gas emissions for Fischer-Tropsch diesel from coal and cellulosic biomass. Environ Sci Technol2011; 7: 3047–3053.
45.
LarsonEDFioreseGLiuG,et al.Co-production of synfuels and electricity from coal+biomass with zero net carbon emissions: an Illinois case study. Energy Procedia2009; 1: 4371–4378.
46.
TarkaTJ. Affordable, low-carbon diesel fuel from domestic coal and biomass. Report, National Energy Technology Laboratory, USA, January2009.
47.
HuaYLiuSLiR, et al.Experimental study of regulated and unregulated emissions from a diesel engine using coal-based fuels. Fuel2020; 280: 118658.
48.
DongdongCCuipingZRuiliangZ, et al.Combustion and emission characteristics of FT diesel/PODE blended fuel. Renew Energy Resour2018; 5: 3.
49.
GnanapragasamNVReddyBVRosenMA. Hydrogen production from coal gasification for effective downstream CO2 capture. Int J Hydrogen Energy2010; 10: 4933–4943.
50.
StanislowskiJTolbertSCurranT, et al.Long-term demonstration of hydrogen production from coal at elevated temperatures. Report, Office of Scientific and Technical Information, USA, 2012.
LiszkaMMalikTManfridaG. Energy and exergy analysis of hydrogen-oriented coal gasification with CO2 capture. Energy2012; 45: 142–150.
53.
SiddiquiODincerI. A well to pump life cycle environmental impact assessment of some hydrogen production routes. Int J Hydrogen Energy2019; 44: 5773–5786.
54.
StiegelGJRamezanM. Hydrogen from coal gasification: An economical pathway to a sustainable energy future. Int J Coal Geol2006; 3: 173–190.
