Abstract
Jiao He peat was used. The effects of reaction time, ratio of liquid to solid, reaction temperature, acid concentration and catalyst on saccharification of peat with a high content of hemicellulose were studied under atmospheric and elevated pressures. The sugar yield from a one-stage hydrolysis of peat was compared with that from a two-stage hydrolysis. The results showed that a high yield of sugar could be obtained, with catalysts FeCl 3 and HCl and under atmospheric pressure, from hydrolysis of peat with a high content of hemicellulose. The optimum conditions were as follows: peat particle size 100 mesh, reaction temperature 100°C, acid concentration 1.0–1.5%, FeCl 3 concentration 1.5 – 2.0%, ratio of liquid to solid 10.5 – 12.0, and reaction time 80 – 100 min. Under such conditions about 70% of the substance which could be hydrolyzed was converted to sugar.
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