摘要:
The present invention relates to a production of liquefied lignocellulosic substrate by enzymatic reaction in which 10% to 40% by weight of solids of lignocellulosic substrate pretreated with water and with enzymes at a concentration between 0.1 and 60 mg of enzymes per gram of cellulose are brought into contact, with stirring, for a duration of between 1 and 24 hours, said process being characterized in that over time at least the value of one of the rheological characteristics of the reaction medium is measured and in that if a reduction of said value over time is detected, a step a) below is carried out: a) the flow rate for the supply of pretreated lignocellulosic substrate is increased, with or without modification of the flow rate of enzymes and/or of water, and in that if an increase of said value over time is detected, a step b) below is carried out: b) the flow rate for the supply of water and/or of enzymes is increased, with or without modification of the flow rate of pretreated lignocellulosic substrate.
摘要:
The invention relates to a method and a device for the fluidised-bed roasting and grinding of a load mainly containing a biomass in order to feed the same into a unit for the gasification or combustion of said load.
摘要:
The invention relates to a method for producing an enzyme cocktail using a cellulolytic microorganism, including two steps: a step a) for growing said microorganism in a closed reactor in the presence of a carbon growth solution; and a step b) for producing said enzyme cocktail carried out by supplying a carbon production solution, the carbon substrate concentration of which is between 150 and 400 g/L, said carbon production solution including an inductive carbon substrate, characterized in that said inductive carbon substrate is a liquid residue from a step of pretreating lignocellulosic materials, the C5 sugar oligomers of which are at least 1 wt % of the total sugars in said liquid residue and at least 0.3 wt % of the total sugars in said carbon production solution.
摘要:
The invention relates to a process for deactivating a cellulolytic microorganism enabling the production of an enzymatic cocktail, said cocktail being used without separation of the cellulolytic microorganism during the biochemical conversion of lignocellulosic materials, comprising at least one step of bringing a gas stream and the medium containing said microorganism into contact, said gas stream comprising more than 25% by weight of CO 2 and comprising less than 0.5 mol% of O 2 .
摘要:
The present invention relates to a method for producing an enzyme cocktail in a submerged culture with a cellulolytic microorganism, including two phases: a phase a) of growing said microorganism in the presence of at least one carbon growth substrate in a closed reactor, the concentration of said carbon growth substrate in said growing phase being between 10 and 90 g/L; and a phase b) for producing the enzyme cocktail in which at least one inducing carbon substrate is fed, said inducing carbon substrate being at least one solid residue from the enzymatic hydrolysis of lignocellulosic materials having undergone a pretreatment step, the concentration of the carbon production substrate in said production phase being between 150 and 400 g/L.