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Biochemical processing of carbohydrate-rich biomass - Coggle Diagram
Biochemical processing of carbohydrate-rich biomass
Process
Aerobic digestion
Anaerobic digestion
Fermentation
Hydrothermal processing(HTP)
Process in hot, compressed liquid water or supercritical water
Carbohydrate
Biocrude
Syngas
Hybrid biochemical/ thermochemical biorefinery
Advantages compared to cellulose hydrolysis
Both carbohydrate and lignin converted to syngas
Less finicky about composition of feedstock
Advantages compared to Fischer-Tropsch
Robust to inorganic contaminants
Opportunity diversity products
Challenges
Gas-liquid transfer is botteneck
Some tarry are fermentation inhibitors
Limited development of suitable microorganisms
Bio oil fermentation
Advantages
Densifies biomass for transportation
Leap frogs the problem of carbohydrate depolymerization
Challenges
Pyrolysis produces some fermentation inhibitors
Gas, charcoal and lignin do not contribute to synfuels production
Limited development to date