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فناوری منابع زیستی
جزئیات رویداد
همایش ، رویداد ، ژورنال
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  • evaluation energy efficiency of bioconversion knot rejects to ethanol in comparison to other thermochemically pretreated biomass

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    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 643
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    • شماره تماس دبیرخانه رویداد: -
     rejects from sulfite pulp mill that otherwise would be disposed of by incineration were converted to ethanol by a combined physical–biological process that was comprised of physical refining and simultaneous saccharification and fermentation (ssf). the energy efficiency was evaluated with comparison to thermochemically pretreated biomass, such as those pretreated by dilute acid (da) and sulfite pretreatment to overcome recalcitrance of lignocelluloses (sporl). it was observed that the structure deconstruction of rejects by physical refining was indispensable to effective bioconversion but more energy intensive than that of thermochemically pretreated biomass. fortunately, the energy consumption was compensated by the reduced enzyme dosage and the elevated ethanol yield. furthermore, adjustment of disk-plates gap led to reduction in energy consumption with negligible influence on ethanol yield. in this context, energy efficiency up to 717.7% was achieved for rejects, much higher than that of sporl sample (283.7%) and da sample (152.8%).

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