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  • catalytic conversion of bio-oil to oxygen-containing fuels by simultaneous reactions with 1-butanol and 1-octene over solid acids: model compound studies and reaction pathways

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    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 752
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     upgrading bio-oil by addition reactions across olefins represents a route to refine bio-oil to combustible and stable oxygen-containing fuels. development and application of highly active strong solid acid catalysts with good hydrothermal stability has become a key determinant for success, because bio-oil’s complexity includes large amounts of water. temperatures of 120°c or more are needed for satisfactory kinetics. batch upgrading of a model bio-oil (phenol/water/acetic acid/acetaldehyde/hydroxyacetone/dglucose/ 2-hydroxymethylfuran) over five water-tolerant solid acid catalysts (dowex50wx2, amberlyst15, amberlyst36, silica sulfuric acid (ssa) and cs2.5h0.5pw12o40 supported on k-10 clay (cs2.5/k-10, 30 wt.%)) with 1-octene/1-butanol were studied at 120 °c/3 h. ssa, sio2 oso3h, exhibited the highest water tolerance and activity. upgrading using olefin/1-butanol is complex, involving many simultaneous competing esterification, etherification, olefin hydration, phenol alkylation, aldol condensation, sugar dehydration etc. reactions.

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