In this process, aqueous ammonia (10-15 wt %) passes through biomass at elevated temperatures (150-170 C) with a fluid velocity of 1cm/min and a residence timeof 14 min, after which the ammonia is recovered [78].
In this process, aqueous ammonia (10-15 wt %) passes through biomass at elevated temperatures (150-170 C) with a fluid velocity of 1cm/min and a residence timeof14 min, after which the ammonia is recovered [78].