• design of process parameters for the production of xylose from wood sawdust

    نویسندگان :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 696
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     meranti wood sawdust (mws) is a cheap and widely available lignocellulosic biomass, which can be a potential source of xylose. this xylose can be an economic raw material for the production of a wide variety of specialty chemicals, mainly xylitol. it is particularly important to establish rapid hydrolysis conditions, which can yield xylose-rich hydrolysate that do not require further treatment. the aim of this research was to study the effect of residence time, temperature, acid concentration, and liquid to solid ratio (lsr) on the formation of xylose and byproducts. batch hydrolysis was performed using different levels of residence time (10–120 min), temperature (105–130 °c), h2so4 concentration (2–12%), and lsr (8–20 g/g). one-factor-at-a-time (ofat) method was followed to select the optimum level of parameters. the residence time, temperature, and acid concentration were found to be the major factors affecting xylose production with the effective level of 60 min, 125 °c, and 4%, respectively. in these conditions, the xylose concentration was 17.9 g/l, corresponding to a yield of above 86% of the potential concentration.

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