Method for producing a biofuel by steam cracking
A method for producing a biofuel by continuous or discontinuous steam cracking of lignocellulosic biomass includes: —recording a digital model of the optimal steam cracking parameters as a function of the nature and the content of the contaminants; —introducing a biomass containing at least part of the contaminated biomass into the steam cracking reactor; —measuring at least once during the treatment the nature and content of the contaminants; and—controlling the adjustment of the steam cracking parameters as a function of the nature and the content of the measured contaminants and of the digital model.
1 . A method for producing a solid biofuel by continuous or discontinuous steam cracking of lignocellulosic biomass, the method comprising:
introducing a biomass comprising a contaminated lignocellulosic biomass into a steam cracking reactor, the contaminated lignocellulosic biomass comprising at least one contaminant;
taking a sample of specimen in or at an outlet of the steam cracking reactor at least once during the steam cracking process;
physicochemical analyzing the sample of specimen to identify a chemical nature and to determine an amount of the at least one contaminant contained in the sample of specimen; and
adjusting at least one parameter of the steam cracking process based on analysis results of the at least one contaminant contained in the sample of specimen and on a digital model of optimal steam cracking parameters corresponding to the chemical nature and the amount of the at least one contaminant.
2 . The method of claim 1 , wherein the at least one parameter is selected from among the following group of parameters: severity factor, steam cracking pressure, steam cracking temperature, steam cracking duration, cessation of steam cracking, steam/solid ratio, filling rate of a steam cracking tank, speed of advance in a steam cracking tank, rate of compression at an inlet, rate of compression at an outlet of a discharge of the reactor with an orifice diameter, supply flow rate, humidity, or particle size.
3 . The method of claim 1 , wherein the contaminated lignocellulosic biomass has a humidity of less than 27% at time of introducing the contaminated lignocellulosic biomass into the steam cracking reactor.
4 . The method of claim 1 , wherein taking the sample of specimen in or at the outlet of the steam cracking reactor at least once during the steam cracking process comprises taking a sample of solid specimen, liquid specimen, or gaseous specimen in or at the outlet of the steam cracking reactor.
5 . The method of claim 1 , further comprising:
taking a sample of pellet specimen produced from the steam cracking process; and
physicochemical analyzing the sample of pellet specimen to determine the chemical nature and content of the at least one contaminant contained therein.
6 . The method of claim 1 , wherein the digital model is determined by a series of chemical simulations.
7 . The method of claim 1 , further comprising periodically recording and time stamping at least some results of the chemical nature and the amount of the at least one analyzed contaminant.
8 . The method of claim 7 , further comprising injecting the at least some results into a blockchain.
9 . The method of claim 7 , further comprising injecting the at least some results into a supervised learning system for producing the digital model.