REMOVAL OF INHIBITORY COMPOUNDS DURING PRE-TREATMENT OF LIGNOCELLULOSIC BIOMASS
First Claim
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1. A process for pretreatment of a lignocellulosic biomass, comprising the steps of:
- exposing the lignocellulosic biomass to steam in an exposing step in a treatment vessel at an elevated temperature and an elevated pressure for a preselected exposure time; and
purging inhibitory compounds from the treatment vessel at user selected times.
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Abstract
A process for the pretreatment of lignocellulosic biomass, in particular during the production of ethanol from biomass. The process including a cooking step where the biomass is exposed to steam at elevated temperatures and pressures for a preselected period of time in a treatment vessel. During the process, volatile and liquid compounds are purged from the treatment vessel.
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Citations
19 Claims
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1. A process for pretreatment of a lignocellulosic biomass, comprising the steps of:
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exposing the lignocellulosic biomass to steam in an exposing step in a treatment vessel at an elevated temperature and an elevated pressure for a preselected exposure time; and purging inhibitory compounds from the treatment vessel at user selected times. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification