Indirect coal liquefaction by integrated entrained flow gasification and Rectisol/Fischer–Tropsch processes for producing automobile diesel substitutes

Ho Won Ra, Tae-Young Mun, Sung Jun Hong, Dong Hyun Chun, Ho Tae Lee, Sung Min Yoon, Ji Hong Moon, Sung Jin Park, Seok Hyeong Lee, Jung Hoon Yang, Jae-Kon Kim, Heon Jung and Myung Won Seo

Energy, 2021, vol. 219, issue C

Abstract: Herein, we describe the design and operation of an indirect coal liquefaction plant with integrated coal-water slurry manufacturing, entrained flow gasification, Rectisol, and Fischer–Tropsch processes to produce liquid fuels for vehicles. The above plant contained an entrained flow gasifier (10 t/d test rig) operated using oxygen as a gasifying agent (21 bar, 1100 °C) and could stably produce synthesis gas (37.8 vol% H2, 36.4 vol% CO) at 600 Nm3/h. Due to the importance of impurities in synthetic liquid fuel production, more than 99% of H2S contained in synthesis gas was removed by the Rectisol process employing refrigerated methanol. An iron-based catalyst allowed liquid fuels containing wax, light/heavy oil, and alcohol fractions to be obtained by the Fischer–Tropsch process at a rate of 5 barrel per day, with detailed analysis confirming their compliance with various quality standards and thus their suitability for use as automobile diesel after distillation.

Keywords: Coal liquefaction; Entrained flow gasifier; Rectisol; Fischer-tropsch; Automobile diesel (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:219:y:2021:i:c:s0360544220327043

DOI: 10.1016/j.energy.2020.119597

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