Abstract

The invention relates to a method for obtaining cellulose fibres from fibrous biomass, in which: the biomass is first subjected to thermo-pressure hydrolysis, preferably with steam explosion, in a thermo-pressure hydrolysis plant, and then separation of the fibrous sludge obtained from the thermo-pressure hydrolysis plant is carried out in at least one separation plant, wherein a press cake of cellulose fibres, preferably with a dry material content of over 20%, preferably of over 25%, and a filtrate of flowable, solids-rich thin sludge are obtained, and wherein the thin sludge is fed to a biogas plant as a fermentation substrate to obtain biogas. The invention also relates to a plant for carrying out this method.

IPC Classes  ?

• D21C 1/02 - Pretreatment of the finely-divided materials before digesting with water or steam
• D21C 3/00 - Pulping cellulose-containing materials
• C12M 1/00 - Apparatus for enzymology or microbiology
• C12M 1/107 - Apparatus for enzymology or microbiology with means for collecting fermentation gases, e.g. methane

Abstract

The invention relates to a method for obtaining cellulose fibres from fibrous biomass (10), in which: the biomass (10) is first subjected to thermo-pressure hydrolysis, preferably with steam explosion, in a thermo-pressure hydrolysis plant (100), and then separation of the fibrous sludge (20) obtained from the thermo-pressure hydrolysis plant (100) is carried out in at least one separation plant (300, 300A, 300B, 300C, 300D), wherein a press cake (30) of cellulose fibres, preferably with a dry material content of over 20%, preferably of over 25%, and a filtrate (40, 40A, 40B, 40C, 40D, 40E, 40F, 41, 41A) of flowable, solids-rich thin sludge are obtained, and wherein the thin sludge is fed to a biogas plant (2000) as a fermentation substrate to obtain biogas. The invention also relates to a plant (1000) for carrying out this method.

IPC Classes  ?

• D21C 1/02 - Pretreatment of the finely-divided materials before digesting with water or steam
• D21C 3/00 - Pulping cellulose-containing materials
• C02F 11/04 - Anaerobic treatmentProduction of methane by such processes
• C12M 1/107 - Apparatus for enzymology or microbiology with means for collecting fermentation gases, e.g. methane

Goods & Services

Plant residues [raw materials] for producing energy, in particular in biogas installations; Organic substrates being raw materials for producing energy, in particular in biogas installations, manufactured from plants and plant residues by means of thermal and/or chemical processes.

Goods & Services

Goods of metal, Namely containers and Pipe systems of steel. Machines for treating and recycling biomass. Apparatus and instruments for scientific research in laboratories. Concrete building elements, In particular tanks of concrete and Concrete tubs. Science and technology services, In particular design and Design of process engineering machines, Systems and Installations, and design and development of control software and computer software.

Abstract

The invention relates to a device for the hydrolysis of preferably solid organic substrates, in particular of energy crops and plant residues, with a collection vessel (1) for receiving the organic substrates, with a conveying means (4) for transporting the organic substrates into a charging device (7) for the batch-wise charging of a hydrolyzer (10) with the organic substrates, the hydrolyzer (10) being provided on the output with a pressure-release device (12) having a valve-controlled pressure diaphragm (13) and a steam trap (14) arranged upstream of an expander tank (15). According to the invention, the conveying means (4) includes a conveyor worm (4′) with a sleeve shaft (25), which is charged with hot steam from the steam trap (14), which is preferably designed as a cyclone, the sleeve shaft (25), in the conveying zone for the organic substrate, having, in a heating zone (18), steam-outlet openings (26) for directly charging the organic substrate with hot steam.

IPC Classes  ?

• D21C 7/06 - Feeding devices
• D21C 1/02 - Pretreatment of the finely-divided materials before digesting with water or steam
• C12M 1/107 - Apparatus for enzymology or microbiology with means for collecting fermentation gases, e.g. methane
• C12M 1/26 - Inoculator or sampler
• C12M 1/00 - Apparatus for enzymology or microbiology
• D21B 1/36 - Explosive disintegration by sudden pressure reduction
• C12M 1/33 - Disintegrators

Goods & Services

Metal products,In particular containers and pipe systems of steel. Machines for treating and recycling biomass. Apparatus and instruments for scientific research in laboratories. Scientific and technological services, In particular design and Planning of process engineering machines, systems and installations, and design and development of control software and computer software.

Abstract

The invention relates to a method for obtaining cellulose fibres from fibrous biomass (10), in which: the biomass (10) is first subjected to thermo-pressure hydrolysis, preferably with steam explosion, in a thermo-pressure hydrolysis plant (100), and then separation of the fibrous sludge (20) obtained from the thermo-pressure hydrolysis plant (100) is carried out in at least one separation plant (300, 300A, 300B, 300C, 300D), wherein a press cake (30) of cellulose fibres, preferably with a dry material content of over 20%, preferably of over 25%, and a filtrate (40, 40A, 40B, 40C, 40D, 40E, 40F, 41, 41A) of flowable, solids-rich thin sludge are obtained, and wherein the thin sludge is fed to a biogas plant (2000) as a fermentation substrate to obtain biogas. The invention also relates to a plant (1000) for carrying out this method.

IPC Classes  ?

• C02F 11/04 - Anaerobic treatmentProduction of methane by such processes
• C12M 1/107 - Apparatus for enzymology or microbiology with means for collecting fermentation gases, e.g. methane
• D21C 1/02 - Pretreatment of the finely-divided materials before digesting with water or steam
• D21C 3/00 - Pulping cellulose-containing materials

Abstract

The invention relates to a simplified and energetically optimized device for
the
hydrolysis of organic substrates, in particular of energy crops and plant
residues,
with a collection vessel for receiving the organic substrates, with a
conveying
means for transporting the organic substrates into a charging device for the
batch-
wise charging of a hydrolyzer with the organic substrates, the hydrolyzer
being
provided on the output with a pressure-release device having a valve-
controlled
pressure diaphragm and a steam trap arranged upstream of an expander tank.
According to the invention, the conveying means includes a conveyor worm with
a
sleeve shaft, which is charged with hot steam from the steam trap, which is
preferably designed as a cyclone, the sleeve shaft, in the conveying zone for
the
organic substrate, having, in a heating zone, steam-outlet openings for
directly
charging the organic substrate with hot steam.

IPC Classes  ?

• B65G 33/00 - Screw or rotary spiral conveyors
• C12M 1/00 - Apparatus for enzymology or microbiology
• D21B 1/36 - Explosive disintegration by sudden pressure reduction