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Sodium hydroxide and calcium hydroxide are used to improve enzymatic hydrolysis of lignocellulose. Compared to NaOH, less carbohydrates was lost in Ca(OH)2 pretreatment. It was found that the substrates with similar lignin content prepared from NaOH and Ca(OH)2 pretreatments had distinct cellulose conversion rate. To understand the mechanism of action, two sweet sorghum bagasse (SSB) samples with...
Solid-state fermentation of sweet sorghum stalk is a cost-effective technology for bioethanol production. Sugar transfer from the interior of sweet sorghum plant cell to the surface is one of the key factors affecting the fermentation process because the system takes place in the absence of free water. Mass transfer of sugar from the interior of the sweet sorghum to the surface of substrates is mainly...
One of the risks associated with CO 2 geologic sequestration is CO 2 migrating upwards from the storage reservoir along vertical leakage paths, which may be abandoned or improperly cemented wellbores, or reactivated faults. CO 2 migrating upwards is a process generally controlled by formation pressure gradient and CO 2 buoyancy as controlled by the changes of CO ...
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