Fe(CO)5-sulfur-catalysed coal liquefaction in H2OCO systems
1996; Elsevier BV; Volume: 75; Issue: 1 Linguagem: Inglês
10.1016/0016-2361(96)81731-5
ISSN1873-7153
AutoresYoshihisa Watanabe, Hiroaki Yamada, Nori-aki Kawasaki, Kazu-aki Hata, Kenji Wada, Take‐aki Mitsudo,
Tópico(s)Thermochemical Biomass Conversion Processes
ResumoIn the liquefaction of Yallourn, Wyoming, Wandoan and Illinois No. 6 coals, using water and carbon monoxide as a hydrogen source, iron pentacarbonyl, Fe(CO)5, together with sulfur acts as an excellent catalyst precursor. The coal conversion and the oil and asphaltene yields depend greatly on the amount of added water, CO pressure and especially reaction temperature. The liquefaction of Yallourn coal (2.0 g) at 375°C for 60 min with 1.1 g water and 7.0 MPa (cold) CO in the presence of Fe(CO)5-sulfur gives a coal conversion of 95.6 wt% with the oil yield of 37.0 wt%. The oil yield is further improved by controlling the reaction temperature. In two-stage liquefaction of Yallourn coal (375°C-60 min + 425°C-60 min), the oil yield further increases to 55.8 wt% together with the high coal conversion of 92.9 wt%.
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