Abstract: It is provided a method for reducing the odor of particulate carbon materials and to the materials obtained thereby.

Abstract: The present invention relates to a particulate carbon material that can be produced from renewable raw materials, in particular from biomass containing lignin, comprising: a 14C content that corresponds to that of the renewable raw materials, said content being preferably greater than 0.20 Bq/g carbon, especially preferably greater than 0.23 Bq/g carbon, but preferably less than 0.45 Bq/g carbon in each case; a carbon content in relation to the ash-free dry substance of between 60 ma. % and 80 ma. %; an STSA surface area of the primary particles of at least 5 m2/g and at most 200 m2/g; and an oil absorption value (OAN) of between 50 ml/100 g and 150 ml/100 g. The present invention also relates to a method for producing said carbon material and to the use thereof.

Abstract: Products extracted from black liquor include undissolved carbonized lignin and carbonized black liquor. The products further include solid carbon separated from the black liquor. Black liquor from an alkaline fractionation process is subjected to a hydrothermal carbonization process. Undissolved carbonized lignin is separated from the carbonized black liquor. The remaining carbonized black liquor is fed back into the alkaline fractionation process. The undissolved carbonized lignin is separated from the carbonized black liquor and purified.

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.

Abstract: The present invention relates to a particulate carbon material that can be produced from renewable raw materials, in particular from biomass containing lignin, comprising: a 14C content that corresponds to that of the renewable raw materials, said content being preferably greater than 0.20 Bq/g carbon, especially preferably greater than 0.23 Bq/g carbon, but preferably less than 0.45 Bq/g carbon in each case; a carbon content in relation to the ash-free dry substance of between 60 ma. % and 80 ma. %; an STSA surface area of the primary particles of at least 5 m2/g and at most 200 m2/g; and an oil absorption value (OAN) of between 50 ml/100 g and 150 ml/100 g. The present invention also relates to a method for producing said carbon material and to the use thereof.

Abstract: The invention relates to a method for extracting undissolved carbonized lignin from black liquor and products produced thereby. The invention further relates to the solid carbon thus extracted and the carbonized black liquor separated from said solid carbon. According to the invention black liquor from an alkaline fractionation process is subjected to a hydrothermal carbonization process, an undissolved carbonized lignin is separated from the carbonized black liquor, the remaining carbonized black liquor is fed back into the alkaline fractionation process, and the undissolved carbonized lignin is separated from the carbonized black liquor is purified.

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.

Abstract: The invention relates to a method for the treatment of process water which is obtained in a plant for the hydrothermal carbonization of renewable raw materials and organic residual materials by an evaporation of process water, a condensation of the washed process steam, and a biological treatment of the process steam condensate as partial quantity or possibly as total quantity of the amount of waste water discharged from an HTC plant.

Abstract: The present invention relates to a continuous method for the hydrothermal carbonization of renewable raw materials and organic residues, in which, in a first processing stage, a pressure increase essentially to the pressure level of the carbonization occurs, in the second processing stage, the carbonization, which is performed at a pressure of at least 5 bar and at most boiling temperature, the obtained carbonized product is at least partially settled as sediment, and the filling height of the water in the second processing stage is set by removing water, and the temperature of the sediment delivered from the second processing stage is reduced by the vaporization of water and it is supplied to the third processing stage, drying which is heated using steam, in which the drying is performed in steam atmosphere, and subsequently discharged from the process.

Abstract: The invention relates to a method for the treatment of process water which is obtained in a plant for the hydrothermal carbonization of renewable raw materials and organic residual materials by an evaporation of process water, a condensation of the washed process steam, and a biological treatment of the process steam condensate as partial quantity or possibly as total quantity of the amount of waste water discharged from an HTC plant.