DE102012005023A1 - System for autonomous provision of electricity over hydrogen during disaster, transfers hydrogen from second chemical reactor to plant or machine for conversion of hydrogen into electrical energy that is delivered to point of use - Google Patents

Abstract

The system produces hydrogen from water (9) using power from renewable energy source (1). The hydrogen is transferred to first chemical reactor (3) with substrate. The partially hydrogenated substrate is transferred from first chemical reactor to storage tank (6), and then transferred to second chemical reactor (5) in which partially hydrogenated substrate is de-hydrogenated by release of hydrogen. The hydrogen from second chemical reactor is transferred to plant or machine e.g. turbine for conversion of hydrogen into electrical energy (7) that is delivered to point of use (8). An independent claim is included for a method for autonomous provision of electricity over hydrogen.

Description

The present invention relates to an arrangement for energy storage in buildings according to the preamble of claim 1 and a method for power supply according to claim 7. Devices for the autonomous provision of energy are often called power generator or emergency generator. These are devices that generate electricity from existing resources in order to be independent of power grids in particular. Such mobile or stationary devices can be used anywhere where a public power grid is missing ("power generator") or the failure of the power grid would entail serious consequences - such. As in hospitals, chemical plants, computer centers and not least in nuclear power plants. A drive unit, usually an internal combustion engine (eg diesel or gasoline engine) and a generator for generating electricity form a unit. Today's emergency generators need a continuous supply of diesel or gasoline. These are difficult to obtain, especially in emergencies or in places with low infrastructure, and if so, then at high prices. Combustion engines, which alternatively use hydrogen as an energy source, are known. For example, the Bavarian engine factories have been operating a fleet of passenger cars with hydrogen for years, and buses are still in use today. Thus, the use of hydrogen in internal combustion engines may be referred to as standard. The use of fuel cells to recover electricity from hydrogen by oxidation of oxygen is also widely known and has applications in a variety of fields.

An essential and critical aspect of the use of hydrogen for the autonomous supply of energy is the production, storage or storage of hydrogen, which is also extremely explosive in the presence of oxygen. The production of hydrogen today is largely realized in chemical plants using methane. This variant of the production prohibits itself in emergencies or is in places with low infrastructure. So far, a number of hydrogen storage processes have been studied: adsorptive, absorptive, liquid, high-density gas. The disadvantage of all methods is their low energy density per volume and the sometimes high cost of the carrier. The previously common methods of storage of hydrogen as a liquid and under pressure represent technical solutions that so far - especially due to the high technical complexity and the associated relatively high costs - not in the public area, and certainly not in emergencies or in places with low infrastructure. It is therefore desirable to provide power supply technology in emergency or low infrastructure locations where the on-site power source can be produced directly from renewable energy sources.

Alternative storage forms for hydrogen that can be used in emergencies or in locations with low infrastructure are known. So be in the EP 1475349 A1 various aromatic compounds, in particular condensed polycyclic hydrocarbons described which can be used for use as hydrogen storage. The substances described here are used in particular in mobile systems. A method and an arrangement for the energetic supply of individual buildings is in the application DE 10 2011 111 565.3 described. There, the basis of the mode of action of condensed polycyclic hydrocarbons having an extended π-conjugated electron system is their property of undergoing a hydrogenation reaction at moderate temperatures in the presence of a suitable catalyst. Hydrogen is incorporated into the substance under saturation of the unsaturated double bonds (hydrogenated). The hydrogen incorporated by means of hydrogenation can subsequently be recovered from the hydrogenated product by regeneration of the aromatic substance in the reverse reaction merely by raising the temperature and / or reducing the hydrogen pressure. As an example, attention should be drawn here to the hydrogenation / dehydrogenation of N-ethylcarbazole (NEC). In this case, N-ethylcarbazole (NEC) is reacted as starting material to the perhydro form (H12-NEC) according to the following reaction scheme.

The in the patent DE 10 2011 111 565.3 described substances for the chemical storage of hydrogen should also be used in this application.

The generation of hydrogen by electric current is a currently frequently discussed option. In this case, direct current is passed into an electrolysis cell in which conductive water is contained. Oxygen rises on one electrode and hydrogen on the other. The method described here can use the oxygen in fuel cells together with the hydrogen, in another variant only the hydrogen. Some proposals or models for the coupling of electricity with the generation of hydrogen are known. Very often, the electrolysis is advantageously operated in a basic environment. In contrast, in the EP 718 904 A1 described a fuel cell system, which is a complete, closed ensemble, and unites a PEM fuel cell and a PEM electrolyzer. This meets the demand for a simple and cost-effective system. The power supply of this system is made from renewable electricity. The design of the proposed fuel cell system allows a long life and is designed for continuous 24-hour operation. The goal is the simplest possible operation and freedom from maintenance. An intelligent control system automatically regulates the immediate operating mode change from hydrogen production to electricity production. The characteristic of the external energy source and the PEM fuel cell / PEM electrolyzer is always taken into account.

Regenerative electricity comes from sources that either self-renew in the short term or whose use does not contribute to depletion of the source. These are sustainably available energy resources, which include hydropower, wind energy, solar radiation (solar energy), geothermal energy and tidal energy. Another source of renewable energies is the energetic potential (biogas, bioethanol, wood, etc.) of the biomass obtained from renewable raw materials. The necessary machinery and equipment are also known: water turbines, wind turbines, photovoltaic, solar thermal, combustion engines and turbines whose fuel comes from biomass. The sources that can be used in this application are those that are available in emergencies or in locations with low infrastructure. Which source this is depends on the emergency or location. For example, at locations near the equator, solar energy can be used to advantage with photovoltaic or solar thermal energy, and wind turbines are preferable at locations on mountains or on the coast. In emergencies or after disasters, photovoltaics and wind turbines are also preferable.

The object, the provision of electrical energy in emergencies or in locations with low infrastructure, without the fuel has to be transported to the place of provision, is achieved by an arrangement having the features of claim 1 and a method having the features of claim 7.

• – mindestens eine Quelle für regenerativ hergestellte Elektrizität, die mit entsprechenden Maschinen oder Anordnungen, darunter Wasserturbinen, Windanlagen, Photovoltaik, Solarthermie, Verbrennungsmaschinen und Turbinen, in Elektrizität gewandelt werden können. Bevorzugt sind wegen ihrer einfachen Handhabbarkeit Windanlagen und Photovoltaik.
• – mindestens einen Elektrolyseur zur Herstellung von Wasserstoff aus Wasser unter Verwendung der regenerativ hergestellten Elektrizität
• – mindestens einen ersten chemischen Reaktor zur mindestens teilweisen Hydrierung von mindestens einem Substrat mit einem ausgedehnten π-konjugierten System unter Verwendung des in dem Elektrolyseur gebildeten Wasserstoffs,
• – mindestens einen Speichertank zur Speicherung des im ersten chemischen Reaktor zumindest teilweise hydrierten energiearmen Substrates,
• – mindestens einen zweiten chemischen Reaktor zur mindestens teilweisen Dehydrierung des in dem ersten chemischen Reaktor hergestellten und im Speichertank gespeicherten zumindest teilweise hydrierten Substrates unter Freisetzung von Wasserstoff, und
• – mindestens eine Anordnung zur Wandlung von Wasserstoff in elektrische Energie, sei es eine Brennstoffzelle zur Oxidation des in dem zweiten chemischen Reaktor freigesetzten Wasserstoffs oder ein Verbrennungsmotor mit angeschlossenem Generator oder eine Wasserstoffturbine mit angeschlossenem Generator für elektrische Energie.

Accordingly, the arrangement for providing electrical energy in emergencies or in locations with low infrastructure,

• - at least one source of regenerative electricity that can be converted into electricity by appropriate machinery or arrangements, including water turbines, wind turbines, photovoltaic, solar thermal, combustion engines and turbines. Wind turbines and photovoltaics are preferred because of their ease of handling.
• At least one electrolyzer for the production of hydrogen from water using regenerative electricity
• At least one first chemical reactor for the at least partial hydrogenation of at least one substrate with an extended π-conjugated system using the hydrogen formed in the electrolyzer,
• At least one storage tank for storing the low-energy substrate which is at least partially hydrogenated in the first chemical reactor,
• At least one second chemical reactor for the at least partial dehydrogenation of the at least partially hydrogenated substrate produced in the first chemical reactor and stored in the storage tank with liberation of hydrogen, and
• - At least one arrangement for the conversion of hydrogen into electrical energy, be it a fuel cell for the oxidation of the released in the second chemical reactor hydrogen or an internal combustion engine with a connected generator or a hydrogen turbine with a connected generator for electrical energy.

• – Pufferung regenerativ erzeugter Energie vor Ort, um einen 24-Stunden Betrieb zur gewährleisten
• – Wasserstofferzeugung durch Elektrolyse,
• – effizienter, sicherer und kostengünstiger vor-Ort Wasserstoffspeicher für die verlustfreie mittelfristige Speicherung ohne Antransport des Energieträgers
• – Brennstoffzelle, Verbrennungsmotor mit Generator oder Gasturbine mit Generator zur Rückverstromung des Wasserstoffes

The following functional elements for the provision of electrical energy in emergencies or in locations with a low infrastructure are thus coupled or combined with one another:

• - Buffering renewable energy locally to ensure a 24-hour operation
• - Hydrogen production by electrolysis,
• - more efficient, safer and less expensive on-site hydrogen storage for lossless medium-term storage without the need to transport the energy source
• - Fuel cell, internal combustion engine with generator or gas turbine with generator for reconverting the hydrogen

Generation of low-pressure hydrogen in conventional electrolysers and immediate conversion of hydrogen via hydrogenation of suitable compounds is a highly interesting and relevant alternative that circumvents the difficulties of hydrogen storage but still allows coupling to renewable energy sources. By converting hydrogen back into electricity, a closed self-sufficient energy supply can be represented.

The present arrangement thus allows the 24-hour supply of electrical energy in emergencies or in places with low infrastructure.

By means of the present arrangement, a low-energy substrate is converted into its high-energy form, in which z. B. from sunlight by photovoltaic, but also from other suitable renewable energy sources, electrical energy is generated, which in turn is used to generate hydrogen and oxygen with splitting of water. The hydrogen formed is then used to hydrogenate the low-energy form of the hydrocarbon used to the high-energy form. Particularly suitable low-energy substrates are those mentioned in the application 10 2011 111565.3 and 10 2011 121704.9. The hydrogenation is exothermic and the heat generated during the hydrogenation can be in a heating system z. B. be used in the house. In times of lack of solar radiation, the high-energy form of the hydrocarbon is converted back into the low-energy form with hydrogen production, which generates electrical energy and heat in a fuel cell.

The advantage of the present arrangement and the method described below is that the 24-hour supply of electrical energy in emergencies or in places with low infrastructure through renewable energy such. B. photovoltaic but also wind energy without Antransport of the energy source is possible. In other words, the supply of electricity in emergencies or in places with low infrastructure is independent of other sources of energy. Another advantage is that the essential factor for energy production hydrogen in contrast to previously known methods and models need not be present in large quantities, but in a chemical substance safely and without pressure in an existing infrastructure such. B. in the tanks of an oil heater can be stored unlimited in time. Using existing infrastructure reduces the cost of the system. Tanks previously used as an example for diesel or fuel oil are available worldwide.

In a preferred embodiment, the at least one electrolyzer is connected via the first chemical reactor, the storage tank, the second chemical reactor and an arrangement for the conversion of hydrogen into electricity. Thus, the individual components of the present arrangement form a self-contained system for power generation and storage. The individual apparatus and reactors of the present arrangement are connected to suitable connecting lines for the transfer of hydrogen and the low-energy or high-energy form of the aromatic hydrocarbon. The lines for the transport of hydrogen are preferably made of gas-tight and pressure-resistant materials.

It is advantageous if the low-energy substrate with an extended π-conjugated system in the first chemical reactor at a temperature between 50 and 180 ° C, preferably 80 and 150 ° C and a pressure between 2 and 200 bar, preferably 10 to 100 Bar in the presence of a suitable noble metal catalyst is at least partially hydrogenated. Particularly suitable catalysts for the hydrogenation of the low-energy substrate include the element ruthenium.

In another embodiment, a fuel cell is a low-temperature polymer electrolyte membrane fuel cell (PEM) used as the arrangement for converting hydrogen into electrical energy. These fuel cells can be used not only in their actual function for hydrogen oxidation, wherein the oxygen required for the hydrogen oxidation is obtained from the air, but can also be operated in reverse function as an electrolyzer, wherein the water required for the electrolysis based solely on the humidity becomes. However, it is also possible that the required water from the fuel cell is recycled or taken from a tank. Thus, the at least an electrolyzer is preferably operated as an inversely operated low temperature polymer electrolyte membrane fuel cell (PEM).

It is also advantageous if at least one water-storing medium is arranged in the at least one electrolyzer.

The preferably used storage tank for the intermediate storage of the high-energy and possibly low-energy form of the substrate used has the configuration and construction of conventionally used conventional heating oil tanks.

• – Bereitstellen eines elektrischen Stroms aus einer regenerativen Quelle
• – Herstellen von Wasserstoff aus Wasser in mindestens einem Elektrolyseur unter Verwendung des elektrischen Stroms aus der mindestens einen erneuerbaren Energiequelle und ggf. Nutzung der dabei entstehenden Wärme z. B. zur Bereitung von Warmwasser,
• – Überführen des gebildeten Wasserstoffes aus dem mindestens einen Elektrolyseur in einen ersten chemischen Reaktor enthaltend mindestens ein Substrat mit einem ausgedehnten π-konjugierten System und mindestens teilweise Hydrierung des Substrates, und ggf. Nutzung der anfallenden Wärme
• – Überführen des zumindest teilweise hydrierten Substrates aus dem ersten chemischen Reaktor in mindestens einen Speichertank und ggf. Speicherung des zumindest teilweise hydrierten Substrates in dem Speichertank,
• – Überführen des zumindest teilweise hydrierten Substrates aus dem Speichertank in mindestens einen zweiten chemischen Reaktor und Dehydrierung des zumindest teilweise hydrierten Substrates in dem zweiten chemischen Reaktor unter Freisetzung von Wasserstoff, und
• – Überführen des Wasserstoffs aus dem zweiten chemischen Reaktor in mindestens eine Anlage oder Maschine zur Wandlung des Wasserstoffs in elektrische Energie
• – Abgabe des elektrischen Stroms an den Ort des Bedarfs

The present arrangement makes it possible to carry out a method for supplying energy to buildings using the above arrangement with the following steps:

• - Providing an electrical current from a regenerative source
• - Producing hydrogen from water in at least one electrolyzer using the electrical power from the at least one renewable energy source and possibly use of the resulting heat z. B. for the preparation of hot water,
• - Transferring the hydrogen formed from the at least one electrolyzer in a first chemical reactor containing at least one substrate with an extended π-conjugated system and at least partially hydrogenation of the substrate, and optionally use of the resulting heat
• Transferring the at least partially hydrogenated substrate from the first chemical reactor into at least one storage tank and optionally storing the at least partially hydrogenated substrate in the storage tank,
• Transferring the at least partially hydrogenated substrate from the storage tank into at least one second chemical reactor and dehydrogenating the at least partially hydrogenated substrate in the second chemical reactor to release hydrogen, and
• - Transferring the hydrogen from the second chemical reactor in at least one plant or machine for converting the hydrogen into electrical energy
• - Delivery of electrical power to the place of need

In case of emergency, the place of need may be a hospital with a destroyed connection to the public power grid or a portable hospital for use in disaster areas. In a variant of the arrangement, photovoltaic cells can be placed on or next to the hospital. If the sun shines, if the hospital is supplied directly, if there is no sunshine or if it is night, the procedure described in this application comes into play. Places with insufficient infrastructure can be found in many parts of the world, for example in South America or in Africa. These places are not connected to the public power grid, because, for example, this connection is not worth due to a low population density. In other places, terrorists like to destroy the elements of the electrical network. Common to all applications, it is advantageous over conventional emergency generators that the fuel does not have to be transported. In areas that are far from expensive in terms of infrastructure and can not be permanently displayed, in emergencies transport will be difficult or even impossible.

Furthermore, it is advantageous if the heat produced in the at least partial hydrogenation of the at least one substrate with an extended π-conjugated system in the first chemical reactor is introduced into a heating system of a building. Due to the high temperature, this heat can be used as an example for sterilization when a hospital is being cared for. The at least partially hydrogenated substrate with an extended π-conjugated system is dehydrogenated in the second chemical reactor with heat input. The heat necessary for the dehydrogenation preferably comes from a heat storage, but can also be used as needed from another, external source such. B. direct sunlight or be supplied by burning hydrogen. Subsequently, the substrate dehydrated in the second chemical reactor is recycled from the second chemical reactor via the storage tank into the electrolyzer. So there is a complete recycling of the substances used. Since the substrate used is not consumed, very long periods of use or a large number of recycling cycles can be sought.

If a fuel cell is used as the plant for the conversion of hydrogen into electricity, it is advantageous if the water formed in the fuel cell during the hydrogen oxidation is transferred into the electrolyzer. It is also conceivable that the water formed in the fuel cell is only partially recycled.

The oxygen required for hydrogen oxidation in a fuel cell is preferably supplied from the outside, ie outside the building, into the fuel cell in the form of air or pure oxygen. Thus, the installation of oxygen-generating devices is not necessary. However, it is also conceivable to introduce the oxygen formed in the electrolyzer during the water hydrolysis directly into the fuel cell.

The invention will be explained in more detail below with reference to the figures of the drawings of several embodiments. Show it:

1 a schematic representation of an embodiment of the inventive arrangement for the loading of the low-energy substrate

2 a schematic representation of an embodiment of the inventive arrangement for the discharge of the high-energy substrate

In 1 a preferred embodiment of the inventive arrangement is shown schematically when the chemical storage is charged by the low-energy substrate from its storage tank 4 in the first chemical reactor 3 hydrogenated and in the tank for the high-energy substrate 6 is stored. Full hydrogenation is possible but not necessary. The hydrogen comes from an electrolysis 2 using regenerative electricity 1 , Hydrogen from water 9 manufactures. The electrolysis is exothermic and the heat generated during the electrolysis in a building immediately z. B. for hot water or heating. In this respect, the efficiency of the electrolysis cells used is not crucial. The hydrogenation is also exothermic and the heat is available at temperatures> 100 ° C available. This can be used for sterilization, for hot water or for building heating or cooling of buildings by means of an absorption chiller. This is particularly advantageous when the place to be cared for is a hospital or store for food. The generated hydrogen is used immediately without intermediate storage for the hydrogenation of the low-energy substrate, in a particularly preferred embodiment of N-ethylcarbazole or its partially hydrogenated high-energy counterpart.

The 2 is the preferred embodiment in the event that the system supplies electrical power. When the energy is removed, the (partially) hydrogenated content of the storage tank 6 through an endothermic dehydrogenation reactor 5 led while releasing hydrogen. This is suitable, in a particularly preferred embodiment in a fuel cell, in the apparatus or in the machine 7 in electricity 8th , Water and heat changed. The water is possibly ready for electrolysis, the heat is used for at least partial heating of the dehydrogenation reactor 5 and to heat the building. If there is no heat demand, in a variant of the method, a thermal storage can be charged (not in 2 shown). The external connection 8th allows the supply of electricity into the device, which is to be supplied by the arrangement according to claim 1 with electricity.

Embodiment 1

The basis is a mobile hospital with a mean energy requirement of 20 kW in Africa. The mobile hospital is to be supplied with the described embodiment for 24 hours continuously with electricity, without transporting fuel. Photovoltaics is assumed as an energy source. At night, the need z. B. fall due to the lack of need for cooling to 5 kW. The low-energy substrate should be N-ethylcarbazole. The yield of electricity via photovoltaic is assumed to be on average 200 W / m² for 12 h. To cover the demand of 20 kW during the day, 100 square meters of photovoltaic are needed. In order to have electricity available at night, the power of 5 kW must also be electrically generated during the day. Taking the efficiency for the in 1 and 2 with a total of 33%, a further 15 kW must be applied by photovoltaics during the day. With a yield of 200 W / sqm, a further 75 sqm of photovoltaic are needed, so that the area adds up to 175 sqm. Since the low-energy substrate can absorb about 1.8 kWh per kg of energy, 12 × 12 kW = 180 kWh over 12 hours, at least 100 kg of low-energy substrate must be in the storage tank 4 to be available. For reasons of security of supply, this amount will multiply. At night, the memory is going down 2 discharges and generates 5 kW of electrical power over 12 hours, hence 60 kWh. The remainder of the stored energy of 120 kWh was converted into heat during loading and unloading. In a particular embodiment, a thermal store is used.

Embodiment 2

This example assumes the same prerequisites as Embodiment 1, but differs in that the heat is used to 50% for cooling the mobile hospital. Taking the coefficient of performance of the chiller at 0.65, which is typical for ammonia-water chillers, of the 15 kW heat generation, of which 2/3 occur during the loading, 10 kW × 0.65 = 6.5 kW Cooling can be used. The additional effort for electrical drives and control is not included in this rough estimate.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1475349 A1 [0003]
• DE 102011111565 [0003, 0004]
• EP 718904 A1 [0005]

Claims (13)

Method and device for the autonomous supply of electricity via hydrogen, comprising - providing an electric current from a regenerative source ( 1 ) - producing hydrogen from water in at least one electrolyzer ( 2 ) using the electrical power from the at least one renewable energy source ( 1 ), - transfer of the formed hydrogen from the at least one electrolyzer ( 2 ) in a first chemical reactor ( 3 ) containing at least one substrate with an extended π-conjugated system and at least partially hydrogenating the substrate - transferring the at least partially hydrogenated substrate from the first chemical reactor into at least one storage tank ( 6 ) and storing the at least partially hydrogenated substrate in the storage tank, - transferring the at least partially hydrogenated substrate from the storage tank ( 6 ) in at least one second chemical reactor ( 5 ) and dehydrogenating the at least partially hydrogenated substrate in the second chemical reactor ( 5 ) releasing hydrogen, and - transferring the hydrogen from the second chemical reactor ( 5 ) in at least one plant or machine for the conversion of hydrogen into electrical energy ( 7 ) - supply of electricity to the place of supply ( 8th ) Arrangement according to claim 1, characterized in that the at least one electrolyzer ( 2 ) with a plant or machine for converting the hydrogen into electrical energy ( 7 ) over the first chemical reactor ( 3 ), the storage tank ( 6 ) and the second chemical reactor ( 5 ) connected is. Arrangement according to one of the preceding claims, characterized in that N-ethylcarbazole, N-n-propylcarbazole, N-isopropylcarbazole are used as substrate with an extended π-conjugated system. Arrangement according to one of the preceding claims, characterized in that the substrate with an extended π-conjugated system in the first chemical reactor ( 3 ) is at least partially hydrogenated at a temperature between 50 and 180 ° C and a pressure between 2 and 200 bar in the presence of a suitable catalyst. Arrangement according to one of the preceding claims, characterized in that geothermal energy and the energy generated by tides are used as regenerative energy source. Another source of renewable energies is the energetic potential (biogas, bioethanol, wood, etc.) of the biomass obtained from renewable raw materials. Preference is given to wind energy and solar radiation (solar energy), particularly preferably photovoltaics. Arrangement according to one of the preceding claims, characterized in that fuel cells, combustion engines and turbines are used as an installation or machine for converting the hydrogen into electrical energy. Method for the autonomous supply of electricity via hydrogen using an arrangement according to one of the preceding claims, comprising the steps of providing an electrical current, preferably a direct current, from a regenerative energy source ( 1 ) - producing hydrogen from water in at least one electrolyzer ( 2 ) using the electric current from a regenerative energy source, - converting the hydrogen formed from the at least one electrolyzer ( 2 ) in a first chemical reactor ( 3 containing at least one substrate having an extended π-conjugated system and at least partially hydrogenating the substrate, transferring the at least partially hydrogenated substrate from the first chemical reactor ( 3 ) in at least one storage tank ( 6 ) and storing the at least partially hydrogenated substrate in the storage tank ( 6 ), - transfer of the at least partially hydrogenated substrate from the storage tank ( 6 ) in at least one second chemical reactor ( 5 ) and dehydrogenating the at least partially hydrogenated substrate in the second chemical reactor ( 5 ) with liberation of hydrogen, - transfer of the hydrogen from the second chemical reactor ( 5 ) in at least one plant or machine for converting the hydrogen into electrical energy and releasing energy in the form of electric power and heat. A method according to claim 7, characterized in that the hydrogen produced in the electrolyzer without intermediate storage for at least partial hydrogenation of the at least one substrate with an extended π-conjugated system in the first chemical reactor ( 3 ) is used. A method according to claim 7 and 8, characterized in that the 24-hour supply of electrical energy in emergencies or in types with low infrastructure by renewable energy without transport of an energy source and without electricity grid is possible. A method according to claim 7 or 8, characterized in that in the at least partial hydrogenation of the at least one substrate with an extended π-conjugated system in the first chemical reactor ( 3 ) heat is introduced into a heating system or in the cooling system of the device, which is to be supplied by the arrangement according to claim 1 with electricity. A method according to claim 7 or 8, characterized in that the at least partially hydrogenated substrate with an extended π-conjugated system in the second chemical reactor ( 5 ) is dehydrated under heat. Method according to one of claims 7 or 8, characterized in that in the second chemical reactor ( 5 ) dehydrated substrate from the second chemical reactor ( 5 ) via the storage tank ( 4 ) in the first chemical reactor ( 3 ) is returned. Method according to one of claims 7-12, characterized in that the plant or machine for converting the hydrogen into electrical energy, the electric current is fed into the electrical network of the device, which is to be supplied by the arrangement according to claim 1.

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