초록 ▼

A process for producing furfural and levulinic acid from lignocellulose includes subjecting a sample of lignocellulose to acid degradation at an elevated temperature for a minute or less, during which time at least fifty percent of the furfural that theoretically can be derived from the sample is ge

A process for producing furfural and levulinic acid from lignocellulose includes subjecting a sample of lignocellulose to acid degradation at an elevated temperature for a minute or less, during which time at least fifty percent of the furfural that theoretically can be derived from the sample is generated. The resulting mixture is then subjected to a second acid degradation at an elevated temperature to produce levulinic acid. During the second acid degradation, furfural vapors are continuously collected from the mixture.

대표청구항 ▼

A process for producing furfural and levulinic acid from lignocellulose, said method comprising (1) in a first reactor having an entrance and an exit, subjecting a sample comprising lignocellulose to acid degradation at an elevated temperature for a time less than a minute to yield a degradation mix

A process for producing furfural and levulinic acid from lignocellulose, said method comprising (1) in a first reactor having an entrance and an exit, subjecting a sample comprising lignocellulose to acid degradation at an elevated temperature for a time less than a minute to yield a degradation mixture comprising at least fifty percent of the furfural that theoretically can be derived from said sample: (2) continuously supplying a volume of said sample to said first reactor through said entrance of said first reactor and continuously removing through said exit of said first reactor a corresponding volume of said degradation mixture and supplying said corresponding volume to a second reactor; (3) in said second reactor, subjecting said degradation mixture to further acid degradation at elevated temperature to produce levulinic acid; and (4) during step (3), continuously collecting furfural from said degradation mixture by condensation of furfural vapors arising from said mixture.