Reactor system based on an alkaline electrolysis system for production of a fuel gas and process for producing the fuel gas by means of the reactor

Abstract

It is an object of the invention to provide a reactor system based on an alkaline electrolysis system and an associated process for producing a synthetic fuel gas having a high proportion of oxygen from natural gas, biogas or exhaust gases from an internal combustion engine with hydrogen and oxygen formed in the electrolysis as fuel gas or synthesis gas. As a result of a high proportion of oxygen in the fuel gas of more than 20% by volume, the energy content of the new synthetic fuel gas is significantly higher than that of mixed gases already used in practice with a proportion of oxygen of less than 5% by volume. The arrangement of the reactor, including all additional systems, in a container allows largely standardized prefabrication on the part of the manufacturer of the reactor comprising the electrolysis system, including compliance with and installation of corresponding safety devices. The reactor system and the process for producing a fuel gas (25) from a carrier gas (11), e.g. natural gas (11), hydrogen, and oxygen utilize an alkaline low-voltage electrolysis system (3) which consists of a plurality of individual cells (4) within a reactor housing (2) and allows the fuel gas (25) to be formed in the individual cell (4) already during electrolysis. In spite of its high oxygen content, the fuel gas (25) is combustible but not explosive.

Description

[0001] P240421-07 Reactor / Fuel Gas Plant 1 Reactor plant based on an alkaline electrolysis plant for the production of a synthetic fuel gas and the process for producing the fuel gas for the reactor. Reactor plant based on an alkaline electrolysis plant for the production of a synthetic fuel gas with a high oxygen content from a carrier gas and using the hydrogen and oxygen produced during electrolysis, and the process for producing a fuel gas with a high oxygen content using the reactor. Natural gas is used as an example of a carrier gas. Natural gas consists mainly of methane and contains traces of ethane, butane, propane, nitrogen, carbon dioxide, sulfur, and helium. The actual composition varies from deposit to deposit. In this case, a methane-rich natural gas of end-user quality is assumed. The production of a mixed gas can improve the CO2 balance, e.g., when heating...The process improves the efficiency of furnaces in steel, glass, or cement production, as well as the heating of residential buildings using gas heating systems, with the production of the fuel gas also being more cost-effective compared to existing methods. German patent DE 2 220 617 A describes a process for producing hydrogen in which a mixture of methanol and water is passed in vapor form over a catalyst at temperatures of 150 to 350 degrees Celsius and normal or elevated pressure, and unreacted water vapor and carbon dioxide are removed. Various catalysts, such as copper, zinc, and / or manganese, are mentioned for this purpose. Furthermore, German patent DE 690 06 428 T2 describes a hydrogen development electrode that possesses high durability and stability and also enables energy cost reductions in hydrogen production. P240421-07 Reactor / Fuel Gas Plant 2 The electrode according to the invention has a coating ofan oxide of at least one metal selected from nickel and cobalt, to which titanium and zirconium components are additionally added. These electrodes were developed for the electrolysis of sodium chloride or water. German patent application DE 10 2015 003 003 B4 relates to an alkaline photoelectrochemical cell, a method for its manufacture, and a method for the light-driven production of hydrogen and oxygen. The main claim reads: Photoelectrochemical cell for the light-driven production of hydrogen and oxygen from an aqueous medium in an alkaline environment, comprising a photoelectrode arranged on the light side, a counter electrode arranged on the shade side, a separator arranged between the photoelectrode and the counter electrode, and a reaction chamber extending on both sides of the separator, which can be filled with the aqueous medium and in which alkaline conditions prevail when the aqueous medium is filled, wherein the photoelectrodea transparent substrate arranged on the light side, which is coated in the direction of the separator with the following layer sequence: a) a transparent, electrically conductive layer; b) at least one partially transparent, layer-by-layer silicon-based solar cell; c) a coupling layer bordering the reaction chamber; characterized in that the coupling layer is multilayered, namely at least d) with a transparent adhesion promoter layer applied directly to the aforementioned or another solar cell, which consists of one of the following metals or an alloy of one or more of these metals: nickel, chromium, tungsten, hafnium; e) with a mirror layer applied directly to the adhesion promoter layer, which consists of one of the following metals or an alloy of one or more of these metals: silver, copper, aluminum; f) and with a layer applied directly to the mirror layer, which is attached to theReaction chamber bordering corrosion protection P240421-07 reactor / fuel gas system 3 protective layer made of nickel or a nickel-containing alloy. A method and an arrangement for carrying out the process of electrochemically combining hydrogen and oxygen as electrolysis gas with at least one known fuel gas as carrier gas to form a combined gas is described in DE 10 2015 102 998 A1. In document DE 10 2015 102 999 A1, an arrangement for the electrochemical combination of two, three, or more gases to form a compound gas is described, and in document DE 10 2015 103 000 A1, the method for electrochemically combining two, three, or more gases to form a compound gas is described. The invention DE 10 2022 202 398 A1 relates to a method for operating an electrolyzer for the production of hydrogen and oxygen with an anode compartment and a cathode compartment, which are separated from each other by means of a membrane impermeable to OH, with at leastThe invention comprises the following process steps: a) the cathode compartment of the electrolyzer is temporarily operated dry, b) the cathode compartment of the electrolyzer is temporarily at least partially flooded or at least partially humidified, c) wherein the at least partial flooding or at least partial humidification of the cathode compartment of the electrolyzer is effected by metering a liquid medium by means of a metering valve. Furthermore, the invention relates to the use of the method for operating an electrolyzer for the production of hydrogen and oxygen. In addition, WO 2013 / 000580 A2 describes a device for the production of hydrogen by electrolysis, with a direct current source and pulsating direct current as electrical energy for the electrolysis, as well as an electrode compartment with pure electrolyte liquid, which has at least one anode and at least one cathode made of the same or different electrically conductive, low-resistance material.The material is formed. In each P240421-07 reactor / fuel gas system 4, at least one neutral plate made of oxidation-resistant, electrically conductive material is arranged between the anode and cathode. The mutually facing surfaces of the anode, neutral plate, and cathode have a surface structure with a high surface area (in the form of deep crystalline porosity). The invention relates to a process for the production of hydrogen, which is carried out in the device, as well as preferred uses. The object of the invention is to create a reactor system based on an alkaline electrolysis plant and an associated process for the production of a synthetic fuel gas with a high oxygen content from natural gas, biogas, or exhaust gases from an internal combustion engine, using the hydrogen and oxygen produced during electrolysis as fuel gas or synthesis gas, respectively, while reducing the energy input for production compared to already known processes and systems.The fuel gas consumption is significantly reduced and water usage is minimized. Due to a high oxygen content in the fuel gas of over 20 vol%, the energy content of the gas according to the invention is considerably higher than that of mixed gases already used in practice with an oxygen content of less than 5 vol%. By arranging the reactor, including all auxiliary equipment, in a single container, largely standardized prefabrication with the electrolysis system can be carried out at the reactor manufacturer's facility, while ensuring compliance with and installation of appropriate safety devices. This enables rapid assembly at the end customer's site. In the process for producing a fuel gas with a high oxygen content from the main components methane, hydrogen, and oxygen, an alkaline low-voltage electrolysis system is used, in which the resulting hydrogen and oxygen are not immediately separated from each other as is generally the case, but rather during electrolysis.The gaseous alkane present in the electrolysis water, e.g., methane or propane, couples to the electrolysis gas bubbles in the individual cells of the reactor housing and forms an atomic compound between the natural gas and the hydrogen and oxygen produced during electrolysis, thus creating a new synthesis gas. This new synthesis gas contains a doubly saturated hydrocarbon. In the resulting compound, H1 and O1 are stabilized and possess a new, bound structure in gaseous form with high energy. The new synthesis gas or fuel gas can be compressed to a pressure of one bar and then, for example, conveyed to the burners of furnaces via appropriate pipelines. The produced fuel gas has an oxygen content greater than 20 vol% and is flammable but non-explosive. The reactor system according to the invention consists, for example, of a 40-foot container housing a reactor with an alkaline electrolysis system.The system includes additional components such as electrolyte tanks, electrolyte storage tanks, and gas storage tanks with corresponding piping, pumps, and valves, as well as measuring and control technology, operating and safety systems. Special safety devices, such as flashback arrestors, protect against dangerous flashbacks and backfires. Gas backflow preventers protect system components, piping systems, and extraction points against dangerous gas backflow. An additional, smaller container can be set up to house the measuring, control, and safety technology. The alkaline electrolysis system integrated into the reactor is a low-voltage system that advantageously operates at 20 V to 30 V and 50 A to 60 A, generates no heat during operation, and achieves an efficiency of over 90%. The electrodes of the electrolysis system are arranged in a multitude of individual cells, each consisting of a molded plastic body.Advantageously, the structure consists of GRP (glass fiber reinforced plastic) with a lid. The plastic molded body can have a rib on its outer surface to absorb forces. Each individual cell contains a cathode and an anode with intermediate plates between them. P240421-07 Reactor / Fuel Gas Plant 6 Advantageously, 5 to 10 intermediate plates are arranged between the cathode and anode. Increasing the number of intermediate plates increases the performance of the electrolysis plant, but with the disadvantage of increased material costs. All plates are preferably made of non-magnetic stainless steel with a size of 2 m x 1 m. Smaller plate sizes are also conceivable. The thickness of the cathodes and anodes is 1 mm, and the intermediate plates are 0.6 mm. The distance between plates is 1 mm to 5 mm, advantageously 3 mm. Above 5 mm, the efficiency of the plant deteriorates. Due to the small distance between the plates and the size of the plates, a capillary effect is created between them.Intermediate plates act as capacitors. The vertical edges of the plates are spaced apart by plastic elements. All plates are advantageously pressed into the individual cells at intervals. The number of individual cells in the reactor depends on the desired amount of hydrogen and oxygen to be produced, and thus on the desired amount of fuel gas, and can exceed 100. The stainless steel plates are advantageously surface-textured. The reactor housing is filled to 80% to 90% with an alkaline electrolyte. This creates a fuel gas chamber under the ceiling of the reactor housing above the individual cells. The individual cells are, for example, completely immersed in a soda solution. Each individual cell has at least one opening on its underside and several openings on its top side. The carrier gas is supplied to the reactor housing below the individual cells through openings via at least one lance.The gas is blown into the individual cell via a lance located beneath each cell. When the electrolysis system is switched on, hydrogen and oxygen are produced. Both gases form an atomic bond with the carrier gas within the individual cells, resulting in a synthetic fuel gas with a high oxygen content. The individual cells have support elements on their outer narrow sides, allowing each cell to be braced against a support frame in the reactor housing. Alternatively, the shape of the plastic molded body is designed such that protruding projections on the right and left outer edges act as support elements, allowing the individual cell to be easily suspended in a support frame within the reactor housing. Within the reactor housing, individual cells are suspended side by side, and each cell has an electrical connection for the cathode and anode. In the wall of the fuel gas chamber of the reactor housing, there are [unclear text] just below [unclear text].Two fuel gas outlets are located in or on the ceiling of the reactor chamber. The first fuel gas outlet allows the fuel gas to be discharged as fuel gas. The second fuel gas outlet allows the fuel gas to be supplied or returned via a pipeline with a gas pump to the carrier gas supply line at the bottom of the reactor casing. Here, a portion of the generated fuel gas is added to the carrier gas and allowed to pass through the reactor again. In practice, it has been found that a return of 5 to 10% of the generated fuel gas is advantageous. This partial addition of the new fuel gas mixes with the carrier gas and has a positive effect on the electrochemical reaction of the carrier gas with the hydrogen and oxygen atoms in the individual cells. The individual cells are flooded in an alkaline solution, preferably a 3% soda solution. The soda solution has the advantage of being less aggressive than other alkalis. A higher concentration than 3% reduces theThe water content is present and only has a negative impact on the overall behavior. The gases oxygen and hydrogen produced when a voltage is applied are combined with natural gas or another carrier gas, such as exhaust gases from combustion engines, within the individual cells, resulting in electrochemical reactions and gas compounds. The natural gas also contains components of N2 and CO2. This results, for example, in the following volume percentage ratios of the individual gas components: methane 30 to 40 vol%, hydrogen 20 to 870 vol%, oxygen 5 to 27 vol%, and the sum of N2 and CO2 1 to 5 vol%. Corresponding tests and investigations of this fuel gas have shown that it is flammable but not explosive. The technical data for the running system are: input of CH4 / C3H8 a volume of 1 to 5 L at 20 to 40 mbar pressure, the working pressure in the individual cells at 10 to 100 mbar and the working temperature andElectrolyte temperature between 10 and 40 oIn the individual cells, a natural compound of H1-O1-H1 atoms is formed, and from a carrier gas, e.g., CH4, a high-energy and safely controllable synthetic fuel gas with the energy content and safe properties of CH4 is produced via electrochemical reactions. The resulting new synthetic fuel gas is a doubly saturated hydrocarbon. From approximately 1 liter of CH4 per minute and an electrolysis current of approximately 1 kW and approximately 300 liters / hour of H1O1H1, new hydrocarbon molecules consisting of approximately 20 to 30% methane are structured in the system. 70 to 80% of the electrolysis gas molecules then bind to these molecules, thus forming the finished synthesis gas or fuel gas. An electrolyte storage tank is advantageously arranged next to the reactor housing. The electrolyte storage tank has an external electrolyte supply line and at least one electrolyte pipeline with a shut-off valve and pump between the reactor housing and the electrolyte storage tank.Furthermore, a gas storage tank can be arranged next to the reactor housing, with corresponding pipe connections including a valve and pump between the first fuel gas outlet and the gas storage tank, and as a fuel gas outlet to end users. The corresponding measurement, control, and safety technology, including electrical installations, is housed in the container. The invention described above is explained in more detail below using an exemplary embodiment. The accompanying drawings show, in Fig. 1, the basic structure of the reactor system with P240421-07 reactor / fuel gas system 9 electrolysis system in the reactor housing, an electrolyte storage tank, a gas storage tank, and the corresponding pipe connections with valves and pumps in a container; Fig. 2 shows a cross-section through a reactor housing with a side view of a single cell, the electrolyte level, and the fuel gas space above it; Fig.Figure 3 shows a longitudinal section through a container showing the arrangement of some of the individual cells with the indicated carrier gas supply into the individual cells and the fuel gas outlet, as well as the suspension of the individual cells in the reactor housing. Figure 4 shows a section through an individual cell with a molded plastic body, cathode and anode, and three intermediate plates. Figure 5 shows the representation of the atomic arrangement of the new synthetic fuel gas in the form of a doubly saturated hydrocarbon. An alkaline electrolysis system 3, consisting of a plurality of individual cells 4, is installed in a reactor housing 2 of a 40-foot container 1. This electrolysis system 3 advantageously operates as a low-voltage system at 30 V. However, voltage values ​​between 5 V and 400 V are also conceivable. No heat is generated during the operation of the electrolysis system 3. The efficiency of this system according to the invention is over 90%.The electrodes of the electrolysis system 3 consist of non-magnetic, preferably surface-structured stainless steel plates 6 measuring 2 m x 1 m. Smaller dimensions are also conceivable. The stainless steel plates 6, serving as cathode 6.1 and anode 6.2, preferably have a thickness of 1 mm, and the intermediate plates 6.3 located between cathode 6.1 and anode 6.2 have the same dimensions as cathode 6.1 and anode 6.2, but with a thickness of 0.6 mm. In the reactor housing 2, the individual cells 4 are suspended parallel to one another on a support frame 30 and are completely immersed in the electrolyte 8. A 3% sodium chloride solution is preferably used as the electrolyte 8. Each P240421-07 reactor / fuel gas system 10 single cell 4 consists of a plastic molded body 5 with a lid 5.1, which is firmly welded to the plastic molded body 5.The plastic molded body 5 advantageously has a kind of rim around its outer circumference to reliably absorb any pressure that may arise in the individual cells during electrolysis. The cathode 6.1, the anode 6.2, and intermediate plates 6.3 are pressed into this plastic molded body 5. The number of intermediate plates 6.3 varies between two and twenty. The intermediate plates 6.3 function as capacitor plates. In practice, three or up to five intermediate plates 6.3 have proven advantageous. All plates 6 are reliably spaced apart from one another by plastic elements 7. The plastic elements 7 extend continuously along the narrow sides of the plates 6. On the underside and top side of the plates 6, plastic elements 7 are provided only at intervals.The plastic molded body 5 of each individual cell 4 has at least one opening on its narrow underside for the inflow of the carrier gas 11 and several openings on its narrow upper side for the outlet of the resulting synthetic fuel gas 25 from the individual cell 4. Electrical connections 28 for the cathode 6.1 and anode 6.2 are provided on each individual cell 4. The reactor housing 2 is filled to 80% to 90% with the alkaline electrolyte 8 and floods all individual cells 4. Thus, a fuel gas chamber 9 exists under the ceiling of the reactor housing 2. A first fuel gas outlet 10 is provided in this fuel gas chamber 9 for the discharge and further use of the fuel gas 25 as fuel gas 25.A carrier gas supply line 11 is provided at the bottom of the reactor housing 2. This carrier gas supply line 11 extends within the reactor housing 2 from the first individual cell 4 to the last individual cell 4 and is provided with outlet openings in the form of at least one lance 12 with outlet openings beneath the plurality of individual cells 4. In addition to the first fuel gas outlet 10, a second fuel gas outlet 13 is advantageously provided. This second fuel gas outlet 13 connects to the carrier gas supply line 11 via a pipeline 14 for fuel gas 25. A gas pump 15 is integrated into this pipeline 14. A portion of the generated fuel gas 25 is returned to the carrier gas supply line 11 through this pipeline 14 and passed through the reactor housing 2 once more. The fuel gas 25, which is passed through the reactor housing 2 again, varies between 5 and 10% of the total fuel gas 25 produced and positively influences the new fuel gas production.An electrolyte storage tank 16 can be arranged next to the reactor housing 2. At least one electrolyte pipeline 17 with a shut-off valve 18 and a pump 29 is provided between the reactor housing 2 and the electrolyte storage tank 16. The electrolyte storage tank 16 has an electrolyte supply line 19. Furthermore, a gas storage tank 27 can be arranged in the container 1. The gas storage tank 27 has a supply line 14 from the first fuel gas outlet 10 via a gas pump 15 and a valve 18, and a discharge for the fuel gas 25. The fuel gas 25 is routed via the first fuel gas outlet 10, for example, to a furnace in a glass plant. Container 1 is equipped with special safety devices 26, such as flame arresters, which protect against dangerous flame flashbacks and backfires. Gas backflow preventers serve to protect system components, pipelines 14 and withdrawal points against dangerous gas backflow.The reactor system with its measurement and control technology 26, including the safety technology 26 and electrical installation 28 for individual components of the reactor system, is installed in container 1 or in an additional container 1. The process for producing a fuel gas 25 from a carrier gas 11 and with hydrogen and oxygen produced by an electrolysis plant 3 using a reactor takes place by introducing, for example, natural gas 11 from the local gas network or another carrier gas 11, e.g., C3H8, biogas 11, or exhaust gases from combustion engines 11, into the reactor housing 2 via the carrier gas supply line 11, whereby, for example, 100 m 3Natural gas 11 is fed into the reactor housing 2 below the individual cells 4 at a rate of 200 kW / h, and the electrolysis plant 3 is supplied with 200 kW / h of electrical energy. The incoming natural gas 11 between the plates 6 of the electrolysis plant 3 in the individual cells 4 forms atomic compounds with the split hydrogen and oxygen atoms from the soda-water solution 8, thus forming a fuel gas 25 within the individual cells 4. Above the electrolyte 8 in the reactor housing 2, the fuel gas 25 collects in the fuel gas chamber 9 at a rate of 200 m³ / h, according to both specified connection values. With an increase in the amount of natural gas supplied and the electrical connection values, the amount of fuel gas 25 produced increases linearly. The CO₂ from the soda (Na₂CO₃) is decomposed and used for the new synthetic gas. From the fuel gas chamber 9, a portion of the fuel gas 25 is routed via the first fuel gas outlet 10 to the burners of an end user, and a portion of the fuel gas 25, approximately...5 to 10% of the total fuel gas 25 produced is routed from the fuel gas chamber 9 to the carrier gas supply line 11 via the second fuel gas outlet 13 and the pipeline 14. In the carrier gas supply line 11 and the lance 12, the fuel gas 25 mixes with the carrier gas 11. The fuel gas 25 from the fuel gas chamber 9 and the carrier gas 11 are then mixed and passed through the plates 6.1, 6.2, and 6.3 of the individual cells 4 of the electrolysis unit 3, where they form atomic compounds with hydrogen and oxygen together with the carrier gas 11. The fuel gas 25, which is routed from the fuel gas chamber 9 via the second fuel gas outlet 13, causes a quality adjustment to match the carrier gas 11. In practice, it has been observed that without the partial recirculation of the generated fuel gas 25, the quality of the fuel gas 25 decreases and the generated fuel gas 25 becomes more aggressive. The new inventive process utilizes the electrolysis gas consisting of H1-O1-H1 atoms and a carrier gas 11, e.g.CH4 or C3H8, to structure an energy-rich P240421-07 reactor / fuel gas plant 13 and a safely controllable synthetic fuel gas 25 with the energy content and safe properties of CH4 or C3H8 by means of electrochemical reactions. From approximately 1 L per minute of CH4 and an electrolysis current of approximately 1 kW, approximately 300 L / h of H1O1H1 are produced and structure new hydrocarbon molecules in the individual cells 4 of the reactor, consisting of approximately 20 to 30% methane, to which 70 to 80% electrolysis gas molecules then dock, thus forming the new synthetic fuel gas 25. In contrast to previously carried out alkaline water electrolyses, the process according to the invention does not separate the generated hydrogen and oxygen. Through the controlled enrichment of the electrolysis water with a gaseous alkane, this hydrocarbon couples to the resulting electrolysis gas bubbles in such a way that a new synthesis gas is formed even in the individual cell.In this process, the CO3 from the soda is also broken down and used for the production of new synthesis gas. The fuel gas 25 produced by electrolysis plant 3, when using natural gas 11 as carrier gas 11, has a mixture volume with the following gas proportions: methane 30 to 40 vol%, hydrogen 1 to 70 vol%, oxygen 1 to 27 vol%, and N. 2, CO2 and other gas components 0 to 5 vol-%. The fuel gas 25 to be supplied to the end user can be further compressed to a pressure of 0.5 to 1 bar.

[0002] P240421-07 Reactor / Fuel Gas Plant 14 Compilation of Reference Symbols 1 – Container, Additional Container 2 – Reactor Housing 3 – Electrolysis Plant 4 – Single Cell 5 – Plastic Molded Body 5.1 – Cover of the Plastic Molded Body 6 – Stainless Steel Plate, Plate 6.1 – Cathode 6.2 – Anode 6.3 – Intermediate Plate 7 – Plastic Element 8 – Electrolyte, Soda-Water Solution 9 – Fuel Gas Chamber, Gas Chamber 10 – First Fuel Gas Outlet 11 – Carrier Gas Supply Line, Carrier Gas, Natural Gas, Biogas, Exhaust Gases from Internal Combustion Engines 12 – Lance 13 – Second Fuel Gas Outlet 14 – Pipeline, Supply Line 15 – Gas Pump 16 – Electrolyte Storage Tank 17 – Electrolyte Pipeline 18 – Shut-off Valve, Valve 19 – Electrolyte Supply Line 23 – Electrolyte Tank 25 – Fuel Gas 26 – Measurement and Control Technology, Safety Technology 27 – Gas Storage Tank 28 – Electrical Connection, Electrical Installation 29 – Pump 30 – Support frame 31 – Support element

Claims

P240421-07 Reactor / Fuel Gas Plant 15 Claims 1. Reactor plant based on an alkaline electrolysis plant for producing a synthetic fuel gas with a high oxygen content from a carrier gas and utilizing the hydrogen and oxygen produced during electrolysis, characterized in that an alkaline electrolysis plant (3) is arranged within a reactor housing (2), the alkaline electrolysis plant (3) consisting of a plurality of individual cells (4) suspended parallel to one another in the reactor housing (2) on a support frame (30) and completely immersed in electrolyte (8), wherein each individual cell (4) consists of a plastic molded body (5) with a cover (5.1) in which antimagnetic stainless steel plates (6), two plates (6) as cathode (6.1) and anode (6.2) and at least two, but preferably five to ten, equally sized intermediate plates (6.3) are arranged and all plates (6) are safely spaced apart from each other by plastic elements (7) and the plastic molded body (5) has at least one opening on its narrow underside and several openings on its narrow top side and electrical connections (28) for the cathode 6.1 and anode 6.2 are provided on each individual cell (4) and the reactor housing (2) is filled to 80% to 90% with an alkaline electrolyte (8) and thus a fuel gas chamber (9) exists under the ceiling of the reactor housing (2) and a first fuel gas outlet (10) for the discharge and further use of the fuel gas 25 as fuel gas (25) is provided at this fuel gas chamber (9) and a carrier gas supply line (11) is provided at the bottom of the reactor housing (2), wherein this carrier gas supply line (11) extends within the reactor housing (2) from the first individual cell (4) to the last individual cell (4) in the form of at least one lance (12) with The system is provided with outlet openings for the carrier gas (11) below the plurality of individual cells (4).P240421-07 Reactor / Fuel Gas Plant 162. Reactor plant according to claim 1, characterized in that the stainless steel plates (6) as cathode (6.1) and anode (6.2) preferably have a size of 2 m x 1 m and a thickness of 1 mm and the intermediate plates (6.3) located between the cathode (6.1) and anode (6.2) have the same size as the cathode (6.1) and anode (6.2), but with a thickness of 0.6 mm and the distance between the plates (6) is between 1 and 5 mm, optimally 3 mm. Reactor system according to one of the preceding claims, characterized in that, in addition to the fuel gas outlet (10), a further, a second fuel gas outlet (13) is provided, which forms a connection to the carrier gas supply line (11) via a pipeline (14) for fuel gas (25), and a gas pump (15) and a valve (18) are integrated into this pipeline (14).Reactor system according to one of the preceding claims, characterized in that the cathodes (6.1) and anodes (6.2) of the individual cells (4) have an electrical connection (28) between 5 V and 400 V, preferably, however, with 30 V.

5. Reactor system according to one of the preceding claims, characterized in that a 3% soda-water solution (8) is used as the electrolyte (8) in the reactor housing (2).

6. Reactor system according to one of the preceding claims, characterized in that a gas storage tank (27) is arranged next to the reactor housing (2) and the gas storage tank (27) has a pipeline (14). P240421-07Reactor / fuel gas system 17 with a pump (15) and a valve (18) for the first fuel gas outlet (10) of the reactor housing (2) and a fuel gas discharge (25) and / or an electrolyte storage tank (16) is arranged next to the reactor housing (2) and at least one electrolyte pipeline (17) with a shut-off valve (18) and a pump (29) is provided between the reactor housing (2) and the electrolyte storage tank (16) and the electrolyte storage tank (16) has an electrolyte supply line (19).7.Reactor system according to one of the preceding claims, characterized in that the reactor system with its measurement and control technology (26) including the safety technology (26) and electrical installation (28) for individual components of the reactor system is installed in the container (1) or an additional container (1).8.Method for producing a fuel gas with a high oxygen content from a carrier gas, hydrogen and oxygen using the reactor system according to claims 1 to 7, characterized in that, for example, natural gas (11) from the local gas network is fed into the reactor housing (2) via the carrier gas supply line (11), wherein, for example, 100 m 3 / h Natural gas (11) is supplied into the reactor housing (2) below the individual cells (4) and the electrolysis plant (3) is supplied with 200 kW / h of electrical energy, the incoming natural gas (11) between the plates (6) of the electrolysis plant (3) in the individual cells (4) forms atomic compounds with the split hydrogen and oxygen atoms from the soda-water solution (8) and thus forms a doubly saturated hydrocarbon gas, a synthetic fuel gas (25), with additional use of the C and O atoms of the soda, which collects in the fuel gas chamber (9) above the electrolyte (8) in the reactor housing (2) in a quantity of 200 m3 / h and from there partly via the first fuel gas outlet (10) to P240421-07 Reactor / Fuel Gas System 18 is directed to the burners of an end user and a portion of the fuel gas (25) is directed via the second fuel gas outlet (13) and the pipeline (14) from the fuel gas chamber (9) to the carrier gas supply line (11), where the fuel gas (25) mixes with the natural gas (11) and flows again through the plates (6.1, 6.2 and 6.3) of the individual cells (4) of the electrolysis system (3).

9. Method according to claim 8, characterized in that, when using natural gas (11) as carrier gas (11), the electrolysis system (3) produces a fuel gas (25) with a mixture volume of methane 30 to 40 vol%, hydrogen 1 to 70 vol%, oxygen 1 to 27 vol% and N 2, CO2 and other gas components 0 to 5 vol-% are produced.

10. Method according to claims 8 and 9, characterized in that the fuel gas (25) is compressed to a pressure of 0.5 to 1 bar after leaving the reactor housing (2).

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