Method and a power plant for on-demand producing electricity from non-fossil power sources and from a renewable lignocellulosic biomass feedstock
AssigneeSociété Bioeb
InventorMichel Delmas
Life of this patent
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Abstract
A method and a power plant for on-demand producing electricity from Non-Fossil Power Sources and from a Renewable Lignocellulosic Biomass Feedstock, in a power plant using several electrical production facilities comprising a first facility for producing electricity from a Non-Fossil Power Source chosen from among wind power, hydro power, solar power, geothermal power and/or tidal power; and a second facility using synthetic gas produced during a gasification step of several fractions from renewable lignocellulosic biomass feedstock obtained by the implementation of an organosolv process using a mixture composed of at least water and formic acid.
Claims4
A method for on-demand producing electricity from non-fossil power sources and from a renewable lignocellulosic biomass feedstock, in an electricity power plant using several electricity production facilities comprising:
- i) at least a first facility for producing electricity from a non-fossil power source, said power source being chosen from among wind power, hydro power, solar power, geothermal power or tidal power;
- and
- ii) at least a second facility using synthetic gas produced during gasification step e) of a process for production of:
- non-oxidized, non-degraded and uncombined lignins with a controlled aliphatic hydroxyl content and controlled phenolic hydroxyl content;
- and
- synthetic gas,
- said process comprising the following steps:
- a) extracting lignins and hemicellulose by putting at least one solid lignocellulosic raw material in a presence of a mixture, composed of at least water and formic acid, at atmospheric pressure under controlled conditions of temperature between 80° C. and 110° C., with a dilution ratio of the at least one solid lignocellulosic raw material/liquid mixture comprised between 1 and 15, and for a determined period of time, depending on a nature of the at least one lignocellulosic raw material;
- b) fractionating, at atmospheric pressure, a primary solid fraction and a primary liquid fraction obtained at an end of extraction step a);
- c) concentrating the primary liquid fraction under vacuum at a second temperature between 40° to 50° C. until the primary liquid fraction comprises a dry matter content of 50 to 60 wt % and then separating at least part of organic acids contained in said primary liquid fraction and obtaining an intermediate liquid fraction;
- d) separating the lignins from said intermediate liquid fraction by diluting the intermediate liquid fraction with water and then filtering to recover the lignins, and obtain a residual liquid fraction;
- e) gasifying at least part of said primary solid fraction or at least part of said residual liquid fraction for producing synthetic gas.
Dependencies are inferred from the claim text.