EP2875116A2 - Procédé pour faire fonctionner une installation de production de biogaz et installation de production de biogaz fonctionnant selon ce procédé - Google Patents

Procédé pour faire fonctionner une installation de production de biogaz et installation de production de biogaz fonctionnant selon ce procédé

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Publication number
EP2875116A2
EP2875116A2 EP13736931.0A EP13736931A EP2875116A2 EP 2875116 A2 EP2875116 A2 EP 2875116A2 EP 13736931 A EP13736931 A EP 13736931A EP 2875116 A2 EP2875116 A2 EP 2875116A2
Authority
EP
European Patent Office
Prior art keywords
biogas
fermenter
gas
fermenters
loaded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13736931.0A
Other languages
German (de)
English (en)
Inventor
Peter Lutz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bekon Holding AG
Original Assignee
Bekon Holding AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bekon Holding AG filed Critical Bekon Holding AG
Publication of EP2875116A2 publication Critical patent/EP2875116A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • C12M41/30—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration
    • C12M41/34—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration of gas
    • 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
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/16—Solid state fermenters, e.g. for koji production
    • 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
    • C12M23/00—Constructional details, e.g. recesses, hinges
    • C12M23/58—Reaction vessels connected in series or in parallel
    • 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
    • C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
    • C12M29/24—Recirculation of gas
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
    • C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
    • C12P5/023—Methane
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q3/00—Condition responsive control processes
    • 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

Definitions

  • the invention relates to a method for operating a biogas plant having the features of claim 1 and to a biogas plant having the features of claim 8.
  • the recirculation of the percolate can be used to regulate the temperature, and it is possible to add additives for process optimization.
  • Dry fermentation is necessary, for example, for very dry or particularly fibrous fermentation substrates.
  • batch operation denotes a process principle in which no further material is added or removed during the fermentation process Fermenter, the fermenter is completely emptied and then refilled.
  • the disadvantage of batch operation is that the operation of the biogas fermenter must at least then be interrupted, if the fermenter room has to be emptied and filled with fresh fermentation substrate.
  • a cogeneration plant serving to generate electricity and / or heat
  • a plurality of fermentation tanks are operated at different times in the biogas plant.
  • Biogas fermenter must be stopped. Because, as described above, then first the already fermented biomass must be removed from the respective biogas fermenter, filled the fresh biomass in the biogas digester and the
  • Percolation stands to be used. This process is controlled by the methane gas content. Although a, according to DE 10 2010 028 707 A1 constructed biogas plant, Biogas with constant and high methane content available, however, reduces the efficiency of the exhaust air operation during the beginning of percolation
  • Bioreactors in the gas space of one or more bioreactors is passed.
  • the measured values of H2S, CO2, CH4 and O2 from all bioreactors are constantly queried and the exchange between two and more bioreactors regulated.
  • Pressure and sulfur are used as values to determine when a bioreactor is ready for replacement with one or more other bioreactors.
  • the procedure specified in D4 indicates an increase in the efficiency of a biogas plant, but it also requires a considerable use of measuring and control technology.
  • the object of the present invention is therefore to provide a method for operating a biogas plant and a biogas plant operated in this manner, in which the efficiency in batch operation is significantly increased using structurally simple means and the continuous output of usable biogas is improved.
  • the invention relates to a method for operating a biogas plant according to the principle of dry fermentation with a plurality of biogas digesters, which are driven or operated in batch mode. At least one of the biogas fermenters has just recently been loaded with fresh biomass, and at least one of the remaining biogas digesters is in a state in which it is entering methane-containing, ie better usable, biogas produced.
  • the following method steps are provided:
  • Biogas fermenter with at least one of the other biogas producing biogas fermenters,
  • Biogas fermenter after a certain period of time.
  • the biogas from the freshly loaded biogas fermenter is converted into a single or at the same time into several other, currently operated and usable biogas biogas with high methane concentration-generating
  • Biogas fermenter recycled By mixing the lean gas with the methane-containing biogas of one or more of the remaining biogas digester, the variation of the methane concentration in the mixed biogas from all biogas digesters and the rate of change of the methane concentration can be reduced in a simple manner.
  • the biogas produced in the biogas fermenters is fed to a CHP with gas engine.
  • the gas engine is preceded by a so-called gas mixer, which mixes the biogas with the necessary air for combustion and ensures at different methane concentrations in the biogas for a combustible biogas / air mixture.
  • gas mixers have a certain inertia, so that in the event of rapid and / or strong fluctuations in the methane concentration in the biogas, under certain circumstances, a biogas / air mixture which is no longer combustible is fed to the gas engine and the gas engine dies.
  • Variation of the methane concentration is reduced and in addition, the change of the methane concentration in the mixed biogas flows from all biogas fermenters slower, so that the gas mixer can always provide a combustible biogas / air mixture for the gas engine despite its inertia.
  • the period of time determined depends on the size of the biogas plant or the number of individual biogas fermenters, the size of the individual biogas fermenters and / or the type of biomass to be fermented and is based on empirical values. The period is chosen so that after switched biogas utilization devices, eg. B. CHP with gas engine, gas treatment equipment, etc., can be supplied continuously with recyclable biogas.
  • Biogas mixture from the freshly loaded biogas fermenter takes place, so in one
  • Control device deposited that the time period parameterizable, i. manually changeable by an operator or automatically by a technical device is. For example, the length of time, depending on the size of the entire biogas plant - number of biogas digesters - and depending on the size of the biogas digester changed or
  • the biogas plant can be operated very flexible and efficient.
  • the biogas plant can be operated even more flexibly if the specific period of time can also be influenced by further parameters and / or manually by an operator while the biogas plant is in operation.
  • concentration of certain proportions of biogas in particular the methane concentration, could be measured and, depending on this, the specific period shortened or extended in order to optimize the operation time and / or quality.
  • Biogas fermenter an oxygen-free or at least as low oxygen scavenging gas is introduced into the biogas fermenter.
  • the biogas fermenter is purged before opening until it is ensured that when the biogas fermenter is opened by the incoming air no explosive biogas / air mixture can arise more. The risk of accidents is considerably reduced.
  • the process is particularly simple, since the transfer of the
  • Biogas mixtures of the at least one freshly loaded biogas fermenter by a pressure gradient takes place, which results in the mere addition of biogas fermenter loaded with fresh biomass - ambient pressure - with the other biogas fermenters - slightly increased pressure by the biogas produced. As a result, no further aids, in particular no funding necessary.
  • the methane concentration in the biogas mixture from all biogas fermenters in a biogas collecting line is measured to determine the specific period of time.
  • Biogas fermenter is chosen so that the methane concentration in the
  • Biogas manifold does not fall below a predetermined by the downstream biogas utilization device minimum value. If the methane concentration in the biogas collecting line is measured continuously or at intervals, a particularly accurate and efficient operation of the entire biogas plant is achieved since all measures for transferring the biogas can also be carried out or controlled as a function of the measured methane concentration.
  • the at least one freshly loaded biogas fermenter connected not only with a single, but with several of the remaining biogas fermenter, so that its biogas mixture is converted according to several biogas digesters.
  • the efficiency of the process can be significantly increased again.
  • a biogas plant which is suitable for carrying out the method described above has a plurality of biogas fermenters which operate on the principle of dry fermentation, each biogas fermenter having at least one
  • Biogas plant via at least one gas transfer line with a valve device through which the biogas outlet of a Biogasfermenters with the gas inlet of another is connectable for a certain period of time.
  • This biogas plant is advantageously suitable to increase the methane content of the lean gas of a freshly loaded biogas fermenter in a particularly simple manner and the
  • Biogas plant is extended.
  • a particularly advantageous embodiment of the biogas plant according to the invention has a measuring device for detecting the methane concentration in a biogas collecting line in which the biogas from all biogas digesters together.
  • control device prefferably controls and / or regulate the connection of the gas outlet of the at least one freshly loaded biogas fermenter to the gas inlet of at least one of the remaining biogas fermenters by means of the gas transfer line.
  • control / regulation only depending on the particular
  • the methane concentration in the biogas collecting line can be taken into account for this purpose.
  • Biogas fermenters as far apart as possible. In particular, these can be arranged at opposite ends of the respective biogas fermenter. As a result, it can be achieved that the methane enriched lean gas in addition to prolonged stay must also deny the longest possible transport route.
  • the gas inlet can be arranged in the bottom region of the respective biogas fermenter. As a result, the lean gas must flow through the biomass and the
  • Dwell time of the lean gas in the respective biogas fermenter is extended. Consequently, a particularly effective mixing results between lean gas and biogas produced in the biogas fermenter with high methane concentration.
  • Figure 1 is a highly schematic plan view of an inventive
  • Figure 2 is a schematic plan view of an embodiment variant
  • Figure 3 is a schematic plan view of an embodiment variant
  • Figure 4 is a schematic plan view of an embodiment variant
  • FIG. 1 shows a highly schematic plan view of a biogas plant 1 according to the invention, which operates on the principle of dry fermentation.
  • the biogas plant 1 shown here has several biogas fermenters 2a to 2d to
  • the biogas fermenters 2a to 2d are operated in so-called batch mode, that is to say that the biomasses to be fermented remain within the biogas fermenters 2a to 2d during the entire fermentation process and the biogas fermenters 2a to 2d are operated at different times.
  • Each of the biogas fermenters 2a to 2d has in each case a gas inlet 3a to 3d for introducing lean gas from a freshly loaded biogas fermenter or oxygen-poor purging gas, the gas inlets 3a to 3d preferably being arranged in the bottom region or near-bottom region of the biogas fermenters 2a to 2d.
  • each biogas fermenter 2a to 2d has a gas outlet 4a to 4d for biogas removal.
  • Gas outlets 4a to 4d to the biogas fermenters 2a to 2d is selected so that the transport path of the introduced lean gas from the respective gas inlet 3a to 3d to the gas outlet 4a to 4d is as long as possible.
  • the gas outlets 4 a to 4 d of the biogas fermenters 2 a to 2 d are combined via at least one gas line 5 in a gas collecting line 6.
  • Gas collecting line 6 becomes the biogas produced in the biogas plant
  • Biogas utilization device 6a such as a cogeneration unit 6a supplied.
  • the combined heat and power plant 6a is connected via an exhaust pipe 6b with the
  • Gas inlets 3a to 3d connectable.
  • individual biogas fermenters can selectively exhaust gas as the CHP 6a are supplied as purge gas.
  • the biogas plant 1 further has a control device 7. This is in each case via data lines 8a to 8d with a valve device 9a to 9d, which regulates the respective gas inlet at each of the gas inlets 3a to 3d,
  • valve means 9a to 9d set up.
  • the control device 7 is in each case by means of further data lines 10a to 10d to a further valve means 1 1 a to 1 1 d, the respective
  • Gas outlet at each of the gas outlets 4a to 4d regulates, connected and is set up for a corresponding actuation of the valve means 1 1 a to 1 1 d.
  • the biogas plant 1 also has at least one further valve device 12 which is connected to the control device 7 via a further data line 13. Furthermore, at least one gas transfer line 14 is provided in the biogas plant 1.
  • the gas transfer line 14 can be connected by means of the valve device 12 with one end to at least one of the gas outlets 4a to 4d and with another end to at least one of the gas inlets 3a to 3d of the biogas fermenters 2a to 2d. This means that at least one of the gas outlets 4a to 4d of the
  • Gas manifold 6 can be separated and instead connected to the gas transfer line 14.
  • the gas outlet 4 a is connected to the gas inlet 3 b by means of the gas transfer line 14.
  • the control device 7 is adapted to the gas inlets 3a to 3d, the
  • Gas outlets 4a to 4d and the valve device 12 for connecting and disconnecting the gas transfer line 14 to control and / or to regulate.
  • the valve device 12 for connecting and disconnecting the gas transfer line 14 to control and / or to regulate.
  • Valve device 12 adapted to connect or disconnect the gas transfer line 14 as needed and the respective gas outlet 4a to 4d instead of the
  • Control device 7 controls or regulates this process in a time-controlled manner and / or as a function of further parameters.
  • the data for the timing and / or the other parameters are parameterizable, i.
  • the operation of the biogas plant 1 according to the invention can proceed as described below.
  • the biogas fermenter 2a shown in FIG. 1 was shut down, switched off, emptied after the complete fermentation of a biomass contained therein and is now in a state in which it reacts with a fresh biomass to be fermented loaded or filled. After renewed commissioning of the biogas fermenter 2a, it takes some time until the biogas forming during fermentation has a methane content or a methane concentration which is a meaningful or efficient one
  • Biogsfermenter 2a produced biogas with low methane content, so-called
  • control device 7 can be precisely determined for this purpose, whether, when and for how long, i. for what period of time, a compound and / or a transfer of the lean gas from the freshly loaded biogas fermenter 2a in the rest
  • Biogas fermenter should be made.
  • the gas transfer line 14 is therefore connected at one end to the gas outlet 4a of the freshly charged biogas fermenter 2a and at the other end to the gas inlet 3b of the biogas fermenter 2b, which produces comparatively higher concentrated biogas. That's how it works
  • Biogas utilization device depends. If the biogas utilization device is a CHP, the methane content, depending on the gas engine used may not be lower than z. B. fall 40%.
  • the biogas plant 1 is now in normal operation, in which the biogas of all biogas fermenters 2a to 2d of the gas manifold 6 is supplied.
  • FIG. 2 shows a schematic plan view of the biogas plant 1 according to the invention.
  • the gas outlet 4a of the biogas fermenter 2a it is possible for the gas outlet 4a of the biogas fermenter 2a to be simultaneously or stepwise connected to the two gas inlets 3b and 3c, i. with more than a single gas inlet the
  • Biogas fermenter 2b to 2d is connected. This means that the lean gas from the biogas fermenter 2a can be divided into several of the remaining biogas fermenters 2b to 2d.
  • FIG. 3 Another possible configuration of the biogas plant 1 is shown in FIG. 3, which likewise shows a schematic plan view of the biogas plant 1.
  • a measuring device 15 for measuring the concentration of the biogas components of the biogas mixture, in particular the methane concentration, in the biogas collecting line 6 is provided in the gas collecting line 6.
  • the measuring device 15 is connected to the control device 7 by means of a data line 16.
  • the gas transfer of the freshly loaded biogas fermenter 2a also depending on methane concentration in the biogas manifold 6, controlled and / or regulated.
  • the time determined for the gas transfer can be shortened or extended depending on the measured biogas components. It is also conceivable that the gas transfer is interrupted and resumed.
  • FIG. 4 shows an alternative embodiment of the biogas plant 1 in one
  • Embodiment provided that the gas transfer line 14 is to be connected to the gas inlets 3a to 3d. In this way, the routing of the gas transfer line 14 is to be connected to the gas inlets 3a to 3d. In this way, the routing of the gas transfer line 14 is to be connected to the gas inlets 3a to 3d. In this way, the routing of the gas transfer line 14 is to be connected to the gas inlets 3a to 3d. In this way, the routing of the gas transfer line 14 is to be connected to the gas inlets 3a to 3d. In this way, the routing of the gas transfer line 14 is to be connected to the gas inlets 3a to 3d. In this way, the routing of the gas transfer line 14 is to be connected to the gas inlets 3a to 3d. In this way, the routing of the gas transfer line 14 is to be connected to the gas inlets 3a to 3d. In this way, the routing of the gas transfer line 14 is to be connected to the gas inlets 3a to 3d. In this way, the routing of the
  • valve devices 9a to 9d are designed as 3-way valves.
  • all the valves 10a to 10d can also be designed as 3-way valves, as a result of which the number of components required can be further reduced.
  • this embodiment represents the simplest and least expensive variant of the biogas plant 1 according to the invention.
  • the freshly loaded biogas fermenter 2a is connected via the gas transfer line 14 with all three remaining Biogasfermentern 2b to 2d.
  • the Control device 7 it is also possible to connect the freshly loaded biogas fermenter 2a only with one or two of the other three biogas fermenter 2b to 2d.

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Abstract

L'invention concerne un procédé pour faire fonctionner une installation de production de biogaz (1) selon le principe de la fermentation à sec, comprenant une pluralité de fermenteurs de biogaz (2a à 2d) exploités en mode discontinu. L'un au moins des fermenteurs de biogaz (2a à 2d) vient d'être alimenté en biomasse fraîche et le ou les autres fermenteurs de biogaz (2a à 2d) se trouvent dans l'état de production de biogaz plus fortement concentré. Dans ce procédé, l'un au moins des fermenteurs de biogaz (2a à 2d) alimenté en biomasse fraîche est fermé et relié à l'un au moins des autres fermenteurs (2a à 2d) produisant du biogaz. En outre, le mélange de biogaz provenant du ou des fermenteurs de biogaz (2a à 2d) alimentés en biomasse fraîche est recyclé dans l'un au moins des autres fermenteurs (2a à 2d) produisant du biogaz. Au bout d'une durée déterminée, le recyclage du mélange de biogaz provenant du ou des fermenteurs de biogaz (2a à 2d) alimentés en biomasse fraîche est stoppé. L'invention concerne également une installation de production de biogaz (1) adaptée pour fonctionner suivant le procédé de l'invention.
EP13736931.0A 2012-07-17 2013-07-16 Procédé pour faire fonctionner une installation de production de biogaz et installation de production de biogaz fonctionnant selon ce procédé Withdrawn EP2875116A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012212505.1A DE102012212505A1 (de) 2012-07-17 2012-07-17 Verfahren zum Betreiben einer Biogasanlage und eine derart betriebene Biogasanlage
PCT/EP2013/065041 WO2014012952A2 (fr) 2012-07-17 2013-07-16 Procédé pour faire fonctionner une installation de production de biogaz et installation de production de biogaz fonctionnant selon ce procédé

Publications (1)

Publication Number Publication Date
EP2875116A2 true EP2875116A2 (fr) 2015-05-27

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EP13736931.0A Withdrawn EP2875116A2 (fr) 2012-07-17 2013-07-16 Procédé pour faire fonctionner une installation de production de biogaz et installation de production de biogaz fonctionnant selon ce procédé

Country Status (6)

Country Link
US (1) US20150147745A1 (fr)
EP (1) EP2875116A2 (fr)
CN (1) CN104508112A (fr)
CA (1) CA2877577A1 (fr)
DE (1) DE102012212505A1 (fr)
WO (1) WO2014012952A2 (fr)

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DE102015016110B4 (de) * 2015-12-11 2018-12-27 Maria Rogmans Verfahren zur Erzeugung von Biogas, sowie Einrichtung zum Betrieb desselben
WO2018064993A1 (fr) 2016-10-09 2018-04-12 Archea New Energy Gmbh Système multichambre conçu pour générer un biogaz
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WO2019144049A1 (fr) * 2018-01-18 2019-07-25 Sheeta Global Tech Corp. Procédé de conversion d'alcanes en alcools, oléfines et composés aromatiques

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CA2877577A1 (fr) 2014-01-23
WO2014012952A2 (fr) 2014-01-23
US20150147745A1 (en) 2015-05-28
WO2014012952A3 (fr) 2014-07-17
CN104508112A (zh) 2015-04-08
DE102012212505A1 (de) 2014-01-23

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