DE102012009640A1 - Optimizing energy production in biogas plants, comprises measuring filling level of gas reservoir or buffer gas, passing to control system which controls introduction of solid and/or liquid substances, and regulating the fermenter - Google Patents

Optimizing energy production in biogas plants, comprises measuring filling level of gas reservoir or buffer gas, passing to control system which controls introduction of solid and/or liquid substances, and regulating the fermenter Download PDF

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DE102012009640A1
DE102012009640A1 DE201210009640 DE102012009640A DE102012009640A1 DE 102012009640 A1 DE102012009640 A1 DE 102012009640A1 DE 201210009640 DE201210009640 DE 201210009640 DE 102012009640 A DE102012009640 A DE 102012009640A DE 102012009640 A1 DE102012009640 A1 DE 102012009640A1
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Prior art keywords
fermenter
gas
control system
energy production
regulating
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DE201210009640
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German (de)
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Andreas Scheck
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    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/44—Means for regulation, monitoring, measurement or control, e.g. flow regulation of volume or liquid level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

Optimizing the energy production in biogas plants, comprises measuring the filling level of the gas reservoir or buffer gas, passing to the control system, which controls the introduction of solid and/or liquid substances into the fermenter, and controlling or regulating the fermenter depending on the value of the introduction.

Description

Anwendungsgebiet:Field of use:

Die Erfindung betrifft ein Verfahren zur Optimierung der Energiegewinnung in Biogasanlagen. Durch das Verfahren soll die Energiegewinnung der Biogasanlage möglichst konstant gehalten werden, um somit eine deutliche Verbesserung des Wirkungsgrades der Anlage zu erzielen. Durch dieses Verfahren wird ebenso die Produktion von Überschüssigem Biogas auf ein Minimum reduziert wodurch die Ressourcen und die Umwelt geschont werden.The invention relates to a method for optimizing energy production in biogas plants. By the method, the energy production of the biogas plant should be kept as constant as possible, in order to achieve a significant improvement in the efficiency of the system. This process also reduces the production of excess biogas to a minimum, thereby saving resources and the environment.

Stand der TechnikState of the art

Beschickung der Biogasanlage in zeitlichem Abstand mit festem oder variablem Gewicht. Unabhängig vom Füllstand des Gasspeichers, der durch die Fermenter Produzierenden Menge an Biogas und der durch die Verbraucher abnehmende Menge an Biogas werden den Fermentern Feststoffe oder auch Substrat zugeführt.Charging the biogas plant at fixed intervals or with fixed or variable weight. Regardless of the filling level of the gas storage, the amount of biogas produced by the fermenters and the amount of biogas that is being reduced by the consumers, solids or even substrate are fed to the fermenters.

Konzeptconcept

Die Erfindung schlägt vor, dass die durch die Fermenter Produzierte Menge an Biogas und die durch den angeschlossenen Verbraucher entnommene Menge an Biogas gemessen wird. Alternativ oder zusätzlich kann der Füllstand des Gasspeichers, bzw. Gaspuffers gemessen werden.The invention proposes that the quantity of biogas produced by the fermenters and the quantity of biogas withdrawn by the connected consumer are measured. Alternatively or additionally, the fill level of the gas reservoir or gas buffer can be measured.

Über eine Regelung agiert nun die Feststoffeinbringung oder die Substratzuführung der Fermenter in Abhängigkeit dieser Parameter.Via a regulation, the solids introduction or the substrate supply of the fermenters now acts as a function of these parameters.

Verfügt die Biogasanlage über eine Gasanalyse mit der sich der CH4-Gehalt des Biogases ermitteln lässt, so können diese Parameter ebenfalls in die Regelung miteingebunden werden.If the biogas plant has a gas analysis with which the CH4 content of the biogas can be determined, then these parameters can also be included in the regulation.

Vorteileadvantages

Die Feststoff- oder die Substrateinbringung der Biogasanlage wird nur angesteuert, wenn es entweder der Vorrat an Biogas im Gasspeicher zulässt oder die durchschnittliche Produktion an Biogas ein bestimmtes Niveau unterschreitet, welches für den Gasverbrauch am Motor unzureichend ist. Dadurch entsteht eine überaus kontinuierliche durchschnittliche Gasproduktion die, unabhängig der Zusammensetzung der dem Fermenter zugeführten Fest- und/oder Flüssigstoffe sich dem Gasverbrauch eines Verbrauchers anpasst. Die Effektivität der Anlage lässt sich hiermit gravierend steigern und es kommt somit auch nicht zu einer Überproduktion an Biogas was zu einem ungewollten Ausstoß von Methan führen würde oder ein Abfackeln zur Folge hätte.The solid or the substrate introduction of the biogas plant is only controlled if it allows either the supply of biogas in the gas storage or the average production of biogas falls below a certain level, which is insufficient for the gas consumption at the engine. This results in a very continuous average gas production, which, regardless of the composition of the fermenter fed solids and / or liquids adapts to the gas consumption of a consumer. The effectiveness of the system can be increased dramatically and thus there is also no overproduction of biogas which would lead to an unwanted emission of methane or flaring would result.

Figurenbeschreibungfigure description

Bei der Zeichnung handelt es sich um eine Aufzeichnung des Gasspeicherfüllstandes über etwa eine Wochen. An 1 ist deutlich zu erkennen, dass der Füllstand des Gasspeichers um die 50%-Marke pendelt. Dem Leitsystem wurde dieser 50% Wert als Grenzwert vorgegeben. Das Leitsystem regelt somit den Füllstand des Gasspeichers anhand der Feststoffeinbringzyklen. Durch Pumparbeiten kann es zu einer leichten Erhöhung, wie im rechten Teil des Bildes zu erkennen ist, kommen.The drawing is a record of the gas storage level over about a week. At 1 It can be clearly seen that the gas storage level fluctuates around the 50% mark. The control system was given this 50% value as a limit value. The control system thus regulates the level of the gas storage using the Feststoffeinbringzyklen. Pumping can cause a slight increase, as can be seen in the right part of the picture.

Claims (2)

Verfahren zur Optimierung der Energiegewinnung in Biogasanlagen, dadurch gekennzeichnet, dass Der Füllstand des Gasspeichers/Gaspuffers gemessen wird und an das Leitsystem, welches die Fermenter Einbringung von Fest- und/oder Flüssigstoffen steuert bzw. regelt, übergeben wird und in Abhängigkeit von dessen Wert die Einbringung zumindest eines Fermenters steuert bzw. regelt.Method for optimizing the energy production in biogas plants, characterized in that the filling level of the gas storage / gas buffer is measured and passed to the control system which controls the fermenter introduction of solids and / or liquids, and depending on its value the Introduction of at least one fermenter controls or regulates. Verfahren nach Patentanspruch 1, dadurch gekennzeichnet, dass die durch die Fermenter erzeugte Menge an Biogas ermittelt wird und in Abhängigkeit von diesen Parametern die Einbringung zumindest eines Fermenters gesteuert wird.A method according to claim 1, characterized in that the amount of biogas produced by the fermenter is determined and the introduction of at least one fermenter is controlled in dependence on these parameters.
DE201210009640 2012-05-15 2012-05-15 Optimizing energy production in biogas plants, comprises measuring filling level of gas reservoir or buffer gas, passing to control system which controls introduction of solid and/or liquid substances, and regulating the fermenter Withdrawn DE102012009640A1 (en)

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DE201210009640 DE102012009640A1 (en) 2012-05-15 2012-05-15 Optimizing energy production in biogas plants, comprises measuring filling level of gas reservoir or buffer gas, passing to control system which controls introduction of solid and/or liquid substances, and regulating the fermenter

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DE201210009640 DE102012009640A1 (en) 2012-05-15 2012-05-15 Optimizing energy production in biogas plants, comprises measuring filling level of gas reservoir or buffer gas, passing to control system which controls introduction of solid and/or liquid substances, and regulating the fermenter

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018162429A1 (en) * 2017-03-06 2018-09-13 Agraferm Gmbh Method for operating a biogas plant

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1762607A1 (en) * 2005-09-07 2007-03-14 U.T.S. Umwelt-Technik-Süd GmbH Control method for biogas installations
EP2050812A1 (en) * 2007-10-18 2009-04-22 Kadri Bayval Biogas plant
DE102008014635A1 (en) * 2007-12-21 2009-06-25 Conpower Energieanlagen Gmbh & Co. Kg Method for anaerobic production and control of biogas from biomass, comprises supplying biomass to fermenting container, removing biogas under supply of heat, and continuously/quasi-continuously measuring the produced biogas quantity
DE102008031882A1 (en) * 2008-07-08 2010-01-14 Mt-Energie Gmbh & Co. Kg Apparatus and method for determining a storage volume of a storage container
WO2010126366A1 (en) * 2009-04-28 2010-11-04 Stichting Dienst Landbouwkundig Onderzoek Method and apparatus for digestion of biomass

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1762607A1 (en) * 2005-09-07 2007-03-14 U.T.S. Umwelt-Technik-Süd GmbH Control method for biogas installations
EP2050812A1 (en) * 2007-10-18 2009-04-22 Kadri Bayval Biogas plant
DE102008014635A1 (en) * 2007-12-21 2009-06-25 Conpower Energieanlagen Gmbh & Co. Kg Method for anaerobic production and control of biogas from biomass, comprises supplying biomass to fermenting container, removing biogas under supply of heat, and continuously/quasi-continuously measuring the produced biogas quantity
DE102008031882A1 (en) * 2008-07-08 2010-01-14 Mt-Energie Gmbh & Co. Kg Apparatus and method for determining a storage volume of a storage container
WO2010126366A1 (en) * 2009-04-28 2010-11-04 Stichting Dienst Landbouwkundig Onderzoek Method and apparatus for digestion of biomass

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018162429A1 (en) * 2017-03-06 2018-09-13 Agraferm Gmbh Method for operating a biogas plant

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