title: Long-term operation of biomass-to-liquid systems coupled to gasification and Fischer-Tropsch processes for biofuel production.
abstract: Long-term operation of the biomass-to-liquid (BTL) process was conducted with a focus on the production of bio-syngas that satisfies the purity standards for the Fischer-Tropsch (FT) process. The integrated BTL system consisted of a bubbling fluidized bed (BFB) gasifier (20 kW(th)), gas cleaning unit, syngas compression unit, acid gas removing unit, and an FT reactor. Since the raw syngas from the gasifier contains different types of contaminants, such as particulates, condensable tars, and acid gases, which can cause various mechanical problems or deactivate the FT catalyst, the syngas was purified by passing through cyclones, a gravitational dust collector, a two-stage wet scrubber (packing-type), and a methanol absorption tower. The integrated system was operated for 500 h over several runs, and stable operating conditions for each component were achieved. The cleaned syngas contained no sulfur compounds (under 1 ppmV) and satisfied the requirements for the FT process.
authors.affiliation: Department of Green Process and System Engineering, University of Science and Technology, Cheonan 331-825, South Korea. verycoldice@ust.ac.kr
authors.forename: Kwangsu
authors.initials: K
authors.lastname: Kim
authors.forename: Youngdoo
authors.initials: Y
authors.lastname: Kim
authors.forename: Changwon
authors.initials: C
authors.lastname: Yang
authors.forename: Jihong
authors.initials: J
authors.lastname: Moon
authors.forename: Beomjong
authors.initials: B
authors.lastname: Kim
authors.forename: Jeongwoo
authors.initials: J
authors.lastname: Lee
authors.forename: Uendo
authors.initials: U
authors.lastname: Lee
authors.forename: Seehoon
authors.initials: S
authors.lastname: Lee
authors.forename: Jaeho
authors.initials: J
authors.lastname: Kim
authors.forename: Wonhyun
authors.initials: W
authors.lastname: Eom
authors.forename: Sangbong
authors.initials: S
authors.lastname: Lee
authors.forename: Myungjin
authors.initials: M
authors.lastname: Kang
authors.forename: Yunje
authors.initials: Y
authors.lastname: Lee
mesh_terms: D056804:Biofuels / Q000592:standards*; D002384:Catalysis; D060326:Chemistry Techniques, Synthetic / Q000379:methods* / Q000592:standards; D007723:Korea; D013227:Steam; D013696:Temperature; D014934:Wood / Q000737:chemistry*
chemical_list: D056804:Biofuels; D013227:Steam