Production of ethanol and bio-chars from Pakistani ligno-cellulosic biomasses

摘要: ABSTRACTThe objective of this study was the production ethanol from two locally available lingo-cellulosic biomasses: rice hulls and wheat straw. Both biomasses were ground to a particle size 2 mm pretreated with 2.5% solution NaOH dried masses individually subjected enzymatic hydrolysis using cellulase enzyme in buffer solutions. Fermentation hydrolyzed products carried out by saccharomyces cervices under anaerobic conditions at 35°C for three days incubation period. The straw produced 15.22 mg/ml 25.02 ethanol, respectively, (on last day) appreciable yields. bio fermentation residues used fixed-bed pyrolysis. At optimum temperature chars 600°C, bio-char contained 56.15% fixed carbon 40.88% volatile matter (VM) gross calorific value 7513 Kcal/Kg, whereas bio-chars straws 53.69% carbon, 45.19% VM, ...