Some analytical parameters for second-generation (2G) ethanol production include:
Pretreatment
The method used to pretreat the raw material, such as acid-based, chemical pulping, alkaline, oxidative, hydrothermal, or ionic liquid
Hydrolysis
The method used to hydrolyze the raw material, such as enzymatic or acid hydrolysis
Fermentation
The method used to ferment the raw material, such as with specific strains of microorganisms like yeast or bacteria
Distillation
The method used to distill the bioethanol and dehydrate it
Some other parameters to consider include:
Energy efficiency: The efficiency of the process
Production cost: The cost of producing the ethanol
Waste reduction: The amount of waste produced
Energy consumption: The amount of energy consumed
2G ethanol is produced from lignocellulosic materials, such as corn straw, wheat straw, sugarcane bagasse, sugar beet pulp, cassava
peels, and switchgrass.
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