The present invention refers to a method of producing furfural and optionally further basic chemicals from biomass material comprising treatment of the biomass material at elevated pressures and temperatures, to the condensates and solid product obtained by the method of the invention, as well as to their use.
A method and apparatus for production of cellulose based fuel pellets from wood logs includes steps of comminuting the wood logs to particulate wood material. The particulate material heat treated in a reactor and the pressure is reduced in a manner causing defibration of the particulate material. The material is pelletized using the softened lignin at least partially as a binder for the pellets. The comminution of the wood logs is effected as a single-step operation in which the wood logs are charged to a comminution station where at least one rotating drum provided with cutting teeth is arranged in a manner to fully comminute the wood logs. The particulate material may be fractioned and a selected size fraction used for the further treatment.
The present invention refers to a method of producing furfural and optionally further basic chemicals from biomass material comprising treatment of the biomass material at elevated pressures and temperatures, to the condensates and solid product obtained by the method of the invention, as well as to their use.
The present invention refers to a method of producing furfural and optionally further basic chemicals from biomass material comprising treatment of the biomass material at elevated pressures and temperatures, to the condensates and solid product obtained by the method of the invention, as well as to their use.
Method for production of cellulose based fuel pellets from wood logs (23) comprising: comminuting the wood logs to particulate wood material; subjecting the particulate material to heat treatment in a reactor; reducing the pressure in a manner causing defibration of the particulate material; pelletizing the material using the softened lignin at least partially as a binder for the pellets. The comminution of the wood logs (23) is effected as a single-step operation in which the wood logs are charged to a comminution station (12) where at least one rotating drum (22) provided with cutting teeth is arranged in a manner to fully comminute the wood logs. The particulate material may be fractioned and a selected size fraction used for the further treatment. An apparatus for conducting the method is described.
C10L 5/44 - Solid fuels essentially based on materials of non-mineral origin on vegetable substances
C10L 9/08 - Treating solid fuels to improve their combustion by heat treatment, e.g. calcining
B02C 18/06 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives
B27L 11/06 - Manufacture of wood shavings, chips, powder, or the likeTools therefor of wood powder or sawdust
6.
METHOD AND APPARATUS FOR PRODUCTION OF CELLULOSE BASED FUEL PELLETS
Method for production of cellulose based fuel pellets from wood logs (23) comprising: comminuting the wood logs to particulate wood material; subjecting the particulate material to heat treatment in a reactor; reducing the pressure in a manner causing defibration of the particulate material; pelletizing the material using the softened lignin at least partially as a binder for the pellets. The comminution of the wood logs (23) is effected as a single-step operation in which the wood logs are charged to a comminution station (12) where at least one rotating drum (22) provided with cutting teeth is arranged in a manner to fully comminute the wood logs. The particulate material may be fractioned and a selected size fraction used for the further treatment. An apparatus for conducting the method is described.
B02C 18/06 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives
B27L 11/06 - Manufacture of wood shavings, chips, powder, or the likeTools therefor of wood powder or sawdust
Method and apparatus for preparation of fuel from biomass wherein the biomass is subjected to a heat treatment in a temperature range from 150 to 300 C, in a reactor pressurized with steam and air, wherein the pressure at completed treatment is released. The volume increase of steam and other gases from the pressure release is temporarily accumulated in a container of a flexible volume while steam and other gases are subjected to heat exchange in at least one heat exchanger so that condensable gases are condensed and release their heat of condensation in the at least one heat exchanger.
B01D 53/00 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
B01D 53/34 - Chemical or biological purification of waste gases
8.
Method of producing carbon-enriched biomass material
The present invention provides a carbon-enriched biomass material, a method of producing the carbon-enriched biomass material, and a method for using the carbons-enriched biomass material. A lignocellulosic material is used as a starting material and is treated at elevated temperatures under partially oxidizing conditions in a reaction vessel which is isolated from the environment. The carbon enriched biomass can be used in domestic or industrial combustion processes.
C10L 5/44 - Solid fuels essentially based on materials of non-mineral origin on vegetable substances
F23G 5/027 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including pretreatment pyrolising or gasifying
C10L 9/08 - Treating solid fuels to improve their combustion by heat treatment, e.g. calcining
C10L 9/06 - Treating solid fuels to improve their combustion by chemical means by oxidation
9.
METHOD AND APPARATUS FOR PREPARING FUEL FROM BIOMASS
Method and apparatus for preparation of fuel from biomass wherein the biomass is subjected to a heat treatment in a temperature range from 150 to 300 C, in a reactor (11) pressurized with steam and air, wherein the pressure at completed treatment is released. The volume increase of steam and other gases from the pressure release is temporarily accumulated in a container (14) of a flexible volume while steam and other gases are subjected to heat exchange in at least one heat exchanger (13) so that condensable gases are condensed and release their heat of condensation in the at least one heat exchanger.
Method and apparatus for preparation of fuel from biomass wherein the biomass is subjected to a heat treatment in a temperature range from 150 to 300 C, in a reactor (11) pressurized with steam and air, wherein the pressure at completed treatment is released. The volume increase of steam and other gases from the pressure release is temporarily accumulated in a container (14) of a flexible volume while steam and other gases are subjected to heat exchange in at least one heat exchanger (13) so that condensable gases are condensed and release their heat of condensation in the at least one heat exchanger.
The present invention refers to a method of producing carbon-enriched biomass material, the carbon-enriched biomass material obtained thereby as well as its use.
The present invention refers to a method of producing carbon-enriched biomass material, the carbon-enriched biomass material obtained thereby as well as its use.
A method for production of fuel pellets from a biological material, preferably saw dust, wood or similar, where the method comprises the following steps: supplying the material to a drying step (1) and dry the material to a relative humidity from 40-65 weight-percent to 30-45 weight-percent; supplying the material from the dryer step (1), optionally via an intermediate storage step (2), to a reactor step (3, 3') and heat the material to 200 - 300 ~C by supply of steam; keeping the material in the reactor at the achieved temperature in sufficient time to soften the material; reducing the pressure of the reactor step (3, 3') in at least two steps, in order to defibrate the material and release of lignin, and supply the material from the reactor step (3, 3') to an additional drying step (5), optionally via an intermediate storage step (4), and optionally pelletizing of the material.
patents
