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- W2035645881 abstract "Co-liquefactions of a Chinese Shenfu sub-bituminous coal (SFSBC) and rice straw (RS) over four different coal liquefaction catalysts were carried out and the co-liquefied product preasphaltene (PA) was characterized by elemental analysis, FTIR and gel permeation chromatograms (GPC) measurements. It was found that the four catalysts gave different catalytic activities in the liquefaction of SFSBC and RS alone. CoMo/Al2O3 and SO42-/ZrO2 promoted the oil formation for RS liquefaction due to their solid acidic property, but FeS + S gave the highest catalytic activity for the liquefaction of SFSBC among the four catalysts used in this study. There existed a positive synergistic effect in the co-liquefaction of SFSBC and RS, and the main synergistic interaction was reflected by the promoted formation of oil and PA. The catalytic activities of the four catalysts in the co-liquefaction were quite different from their catalytic activities in the individual liquefaction of SFSBC and RS. FeS gave the lowest catalytic activity for the coal liquefaction alone among the four catalysts, but had the highest promotion to the synergistic effect in the total yield of liquefaction products in the co-liquefaction of SFSBC and RS. SO42-/ZrO2 diminished this synergistic effect for the co-liquefaction of SFSBC and RS due to its solid acidic property. It was found that the four catalysts used have higher catalytic activity for the PA, which is from coal liquefaction and converting this part of PA into AS and oil fraction. The average molecular weights of PAs from SO42-/ZrO2 and CoMo/Al2O3 catalysts were lower than those of PAs from FeS and FeS + S catalysts, suggesting that the catalytic hydrogenation activities of SO42-/ZrO2 and CoMo/Al2O3 are higher than those of FeS and FeS + S catalysts." @default.
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- W2035645881 date "2013-07-01" @default.
- W2035645881 modified "2023-09-26" @default.
- W2035645881 title "Co-liquefaction of rice straw and coal using different catalysts" @default.
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- W2035645881 doi "https://doi.org/10.1016/j.fuel.2012.06.032" @default.
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