Method for obtaining stabilized lignin having a defined particle-size distribution from a lignin-containing liquid
AssigneeSuncoal Industries GmbH
InventorTobias WITTMANN
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Abstract
A process for recovering carbonized lignin having a defined grain size distribution from a lignin-containing liquid is provided. The lignin-containing liquid is subjected to a hydrothermal carbonization to convert the lignin into a carbonized lignin and the carbonized lignin is separated from the liquid containing the carbonized lignin. The lignin-containing liquid is subjected to a hydrothermal carbonization at temperatures in the range from about 150° C. to about 280° C. and by adapting the H+ ion concentration in the lignin-containing liquid before and/or during the hydrothermal carbonization the grain size distribution of the carbonized lignin is adjusted.
Claims23
A process for recovering carbonized lignin having a defined grain size distribution from a lignin-containing liquid, wherein the lignin-containing liquid is subjected to a hydrothermal carbonization to convert the lignin into a carbonized lignin and the carbonized lignin is separated from the liquid containing the carbonized lignin, wherein
- the lignin-containing liquid is subjected to a hydrothermal carbonization at temperatures in the range from about 150° C. to about 280° C. and
- by adapting the H+ ion concentration in the lignin-containing liquid before and/or during the hydrothermal carbonization the grain size distribution of the carbonized lignin is adjusted.
Dependencies are inferred from the claim text.