Plant for producing ammonia in the form of ammonia water

The ammonia production plant addresses the energy inefficiency of large-scale processes by enabling energy-efficient, decentralized production of ammonia water through a reactor and dissolving tanks, allowing for flexible scaling and concentration adjustment.

WO2026012530A1PCT designated stage Publication Date: 2026-01-15ENOVIAS IND GMBH
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Patent Information

Application Number
PCT/DE2024/100627
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-07-10
Publication Date
2026-01-15

AI Technical Summary

Technical Problem

Existing ammonia production processes, such as the Haber-Bosch process, are energy-intensive and not suitable for small-scale or decentralized production, contributing significantly to global fossil fuel consumption.

Method used

A plant for producing ammonia in the form of ammonia water, comprising a reactor, dissolving tanks, and a supply and dosing module, allowing for variable scaling and decentralized production, including features like agitators, immersion pipes, and exhaust gas treatment to manage gaseous ammonia efficiently.

Benefits of technology

Enables energy-efficient production of ammonia water, facilitating small-scale and decentralized production, including mobile and remote applications, with the option for batch operation and flexible concentration adjustment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a plant for producing ammonia in the form of ammonia water, the plant comprising: a reactor (10) for producing gaseous ammonia, the reactor (10) having a first water inlet for introducing water into the reactor (10), at least one solid-material inlet (63, 64, 65) for introducing at least one solid that reacts with the water into the reactor (10), a stirrer (45) for mixing the water with the at least one solid, and a first gas outlet for the gaseous ammonia; a first dissolving tank (11) for dissolving the gaseous ammonia in water and for providing ammonia water of a first concentration, the first dissolving tank (11) having a second water inlet for introducing fresh water into the first dissolving tank (11), a first dip pipe (41) through which the gaseous ammonia from the reactor (10) can be supplied to the first dissolving tank (11) and which is connected to the first gas outlet, a second gas outlet for gaseous ammonia not dissolved in water, and a first withdrawal opening (68) for the ammonia water of the first concentration; a fresh-water connection (1) and a fresh-water piping system (37) for supplying fresh water; a supply and dosing module connected to the solid-material inlet (63, 64, 65) of the reactor (10), the supply and dosing module having at least one storage container (14, 15, 16) for the at least one solid and a dosing means (17, 18, 19) for the at least one solid; and a dispensing module (30) for the ammonia water, the dispensing module (30) being connected to the first withdrawal opening (68) of the first dissolving tank (11) and providing a filling means which is designed to fill a container, which does not belong to the plant, with the ammonia water.
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Description

[0001] Plant for the production of ammonia in the form of ammonia water

[0002] The invention relates to a plant for the production of ammonia in the form of ammonia water.

[0003] Today, ammonia is produced almost exclusively on a large industrial scale using the Haber-Bosch process. Large quantities of fossil energy are still used for ammonia production using this process. Ammonia production accounts for just under 1.5% of global fossil fuel consumption. WO 2021 / 186340 A1 proposes an alternative, energy-efficient process for producing ammonia in the form of ammonia water, a process that is not yet widely used in industrial practice.

[0004] The object of the present invention is to provide a plant for the production of ammonia in the form of ammonia water.

[0005] To solve the problem, the invention has the features of claim 1.

[0006] Accordingly, the plant for producing ammonia in the form of ammonia water comprises a reactor for producing gaseous ammonia, wherein the reactor provides a first water inlet for introducing water into the reactor, at least one solid inlet for introducing at least one solid reacting with the water into the reactor, as well as an agitator for mixing the water and the at least one solid, and a first gas outlet for the gaseous ammonia; a first dissolving tank for dissolving the gaseous ammonia in water and for providing ammonia water of a first concentration, wherein the first dissolving tank has a second water inlet for introducing fresh water into the first dissolving tank; and a first dip tube through which the gaseous ammonia from the reactor can be supplied to the first dissolving tank and which is connected to the first gas outlet.a second gas outlet for water-insoluble gaseous ammonia and a first withdrawal opening for the ammonia solution of the first concentration, a fresh water connection and a fresh water piping system for supplying fresh water, a supply and dosing module connected to the solids inlet of the reactor, wherein the supply and dosing module provides at least one reservoir for the at least one solid and a dosing agent for the at least one solid, and a withdrawal module for the ammonia solution, wherein the withdrawal module is connected to the first withdrawal opening of the first dissolving tank and provides a filling device that is configured for filling a container not belonging to the system with the ammonia solution.

[0007] The particular advantage of the invention lies in the fact that ammonia in the form of ammonia water can be produced energy-efficiently using the system according to the invention. The system can be scaled variably, so that the production of ammonia water on a small scale, in particular its decentralized, distributed production, is just as possible as large-scale industrial production of ammonia in the form of ammonia water.

[0008] In particular, the possibility of providing small-scale ammonia production plants offers the opportunity for mobile, decentralized production, for example, on board ships or in remote regions of the world. Furthermore, the production of ammonia solution can be carried out in batch operation. Therefore, continuous operation of the plant according to the invention is not required. Rather, the plant can be used or operated as needed to produce ammonia in the form of ammonia solution.

[0009] The plant produces ammonia solution by means of a reactor that is filled with water and at least one solid. The components are mixed using an agitator, initiating a chemical reaction that produces gaseous ammonia. The gaseous ammonia is then transported via the first immersion pipe to the first dissolving tank.

[0010] The first solution tank is partially filled with fresh water. The dip tube extends into the fresh water, allowing the gaseous ammonia transferring from the reactor to enter the water and react with it. The ammonia gas dissolves at least partially in the water, thus enriching it. This produces ammonia water with an ammonia concentration of, for example, 20%.

[0011] Fresh water for the first dissolving tank is supplied by a fresh water connection on the plant side and routed to the first dissolving tank via a fresh water piping system. Optionally, the reactor can also be connected to the fresh water piping system.

[0012] To store at least one of the solid materials fed into the reactor and to supply it in the required quantity, the system includes a supply and dosing module. In addition to a storage reservoir for the solid material, this module also includes a dosing device. For example, the supply and dosing module can be used to store and supply a granular solid. In this case, the storage reservoir could be provided, for example, by a silo or a bag containing the granules. The dosing device could, for example, be a screw conveyor. The screw conveyor enables the reactor to be supplied with a predetermined quantity of the stored granular solid.

[0013] The extraction module for the ammonia water is designed, for example, so that the ammonia water is fed into an external container, i.e., one not belonging to the system, such as an IBC container.

[0014] According to a preferred and advantageous embodiment of the invention, the system provides a second dissolving tank. The second dissolving tank is configured to dissolve the gaseous ammonia, which is not dissolved in water in the first dissolving tank, into water. For this purpose, the second dissolving tank comprises a third water inlet, which can be connected to the fresh water supply system for introducing fresh water into the second dissolving tank, and a second immersion pipe through which the gaseous ammonia, which is not dissolved in water in the first dissolving tank, is supplied to the second dissolving tank and which is connected to the second gas outlet of the first dissolving tank. Furthermore, the second dissolving tank comprises a third gas outlet for the remaining gaseous ammonia, which is not dissolved in water, and a second dispensing opening for the ammonia solution, which is provided in the second dissolving tank in a second concentration.The second concentration of the ammonia solution in the second dissolving tank is typically lower than the first concentration due to the process. It is usually around 4% ammonia.

[0015] The second immersion pipe, which leads into the second dissolving tank, is again installed so that, during operation of the system, it terminates below the water level provided by the fresh water in the second dissolving tank. The gaseous ammonia, which is not dissolved in the water in the first dissolving tank, thus largely dissolves in the water of the second dissolving tank, enriching the water with ammonia. Excess gaseous ammonia, which is also not dissolved in the water in the second dissolving tank, can escape from the second dissolving tank via the third gas outlet. The second outlet provided by the second dissolving tank is used to draw off the ammonia solution of the second concentration from the second dissolving tank.To mix the ammonia solution of the first concentration from the first dissolving container with the ammonia solution of the second concentration from the second dissolving container, a further development of the invention provides a dispensing module that is connected to the first dispensing opening of the first dissolving container and to the second dispensing opening of the second dissolving container. The dispensing module then includes at least one filling device for filling the external container with the ammonia solution of the mixed concentration and at least one mixing device for mixing the ammonia solution of the first concentration with the ammonia solution of the second concentration.Valves, for example, serve as mixing agents, allowing the flow rate of the ammonia water of the first concentration and the ammonia water of the second concentration to be variably adjusted, thus influencing or adjusting the concentration of ammonia in the ammonia water with the mixed concentration.

[0016] According to an advantageous embodiment of the invention, the ammonia production system comprises a gas aftertreatment module. When a single first dissolving tank is provided, the gas aftertreatment module is connected to the gas outlet of this first dissolving tank; otherwise, it is connected to the third gas outlet of the second dissolving tank or to a gas outlet of a final dissolving tank. It is also connected to a fuel gas supply via a fuel gas connection line. Natural gas, for example, can serve as the fuel gas. Additionally, the exhaust gas aftertreatment module includes an ignition device with which a combustion process for burning off gaseous ammonia can be initiated. Advantageously, the exhaust gas aftertreatment module ensures that the gaseous ammonia does not escape from the system untreated. The combustion of the gaseous ammonia allows compliance with the emission limits applicable to ammonia.

[0017] According to an advantageous embodiment of the invention, the system includes a water tank located upstream of the reactor and connected to the fresh water supply system. The water tank has means for cooling or heating the fresh water. It is connected to the reactor's water inlet via a supply line. Advantageously, by providing the water tank with the means for cooling or heating the fresh water, heated water can be supplied to the reactor. The use of heated water promotes the reaction of the water with the at least one added solid and the formation of ammonia gas. The reaction in the reactor can be influenced by the water temperature. Typically, the water for the reactor is preheated to, for example, 64 °C.

[0018] According to an advantageous embodiment of the invention, the reactor provides a first solids inlet, a second solids inlet, and a third solids inlet through which three identical or different solids can be supplied. Furthermore, the supply and dosing module is designed to provide three reservoirs for up to three solids, as well as dosing agents for the separate dosing and / or supply of the three solids to the reactor. Advantageously, the provision of the three reservoirs and the separate dosing agents allows for variable reactor configuration. Different solids with varying compositions can be used for the production of the ammonia solution. This allows the system to be used very flexibly and enables the system to respond to varying availability and / or composition of the solids.

[0019] According to a further development of the invention, the first immersion pipe and / or the second immersion pipe provides a conveying means for transferring the gaseous ammonia from the reactor to the first dissolving vessel or from the first dissolving vessel to the second dissolving vessel. A compressor, a pump, or, for example, a compressor can serve as the conveying means. Advantageously, by providing the conveying means, the ammonia gas can be actively conveyed and the manufacturing process can be controlled according to demand.

[0020] In a further development of the invention, the reactor features a closable liquid outlet for emptying the reactor. Additionally, a collection container is connected to the reactor's liquid outlet, which collects the reactor liquid generated as a byproduct of ammonia water production. The collection container can, for example, be equipped with a further dispensing module that provides filling means for transferring the reactor liquid into another container not belonging to the system. Advantageously, by providing the liquid outlet, the collection container, and the additional dispensing module, the reactor liquid generated during ammonia water production can be separately utilized as a byproduct. For example, a liquid fertilizer is produced as a byproduct, which is filled into the other container and used, for instance, in agriculture.

[0021] According to an advantageous embodiment of the invention, a first intermediate storage tank and / or a second intermediate storage tank are connected to the first dispensing opening of the first dissolving tank and / or to the second dispensing opening of the second dissolving tank. The first intermediate storage tank and / or the second intermediate storage tank serve to store the ammonia solution in the first concentration and / or the ammonia solution in the second concentration, respectively. By providing the intermediate storage tanks, it is advantageously possible to separate the production of the ammonia solution from its bottling. In particular, the ammonia solution of the respective concentration can be collected in the intermediate storage tank and mixed and / or bottled at a later time. The intermediate storage tank can also be used to cool the ammonia solution.

[0022] According to an advantageous embodiment of the invention, the system comprises a plurality of horizontally staggered levels. The reactor, as well as the first and optionally the second dissolving container, are arranged on a first horizontal level. Above the first horizontal level is a second horizontal level, in which the supply and dosing module is provided. By arranging the supply and dosing module above the reactor, gravity can be used to fill the reactor. Below the first horizontal level, i.e., below the dissolving containers, a third horizontal level is provided, containing the dispensing module and optionally a further dispensing module. The emptying of the reactor or the dissolving containers, as well as the filling of the external containers, can therefore also be gravity-assisted.Moreover, the system's arrangement in several horizontal planes results in a particularly compact design, thus reducing the required floor space. According to an advantageous embodiment of the invention, the reactor, the first dissolving vessel, the second dissolving vessel, the collection vessel, the first intermediate storage vessel, and / or the second intermediate storage vessel each include a cooling jacket. Furthermore, a coolant circuit is provided, to which, in addition to the at least one cooling jacket, a coolant reservoir, a coolant conveyance, and a coolant temperature module for cooling and / or heating the coolant are connected. By providing the coolant circuit with the at least one cooling jacket, the reservoir, the conveyance, and the coolant temperature module, it is possible to influence the reaction in the reactor as well as the dissolving process in the dissolving vessels.The reaction temperature can therefore be influenced, for example, by the amount of coolant and its temperature.

[0023] Further advantages, features, and details of the invention can be found in the dependent claims and the following description. Features mentioned therein can be essential to the invention individually or in any combination. The drawing serves only as an example to illustrate the invention and is not intended to limit its scope.

[0024] They show:

[0025] Fig. 1 shows a highly simplified representation of the main components of a plant for the production of ammonia in the form of ammonia water as a block diagram and

[0026] Fig. 2 shows a detailed representation of the plant for the production of ammonia in the form of ammonia water.

[0027] An embodiment of the system according to the invention is shown in Figures 1 and 2. Figure 1 shows a highly simplified, schematic, and reduced representation of the main components of the system involved in the chemical reaction of water with at least one solid to produce ammonia water. Figure 2 shows a detailed representation of the system with the main components and further functional components. The system initially comprises a reactor 10, which serves to produce gaseous ammonia. The reactor 10 provides a first water inlet for introducing water into the reactor 10 and three solid inlets 63, 64, 65 for introducing three solids that react with the water inside the reactor 10. In addition, an agitator 45 is provided for mixing the water and the three solids. Furthermore, the reactor 10 provides a first gas outlet for the gaseous ammonia formed during the reaction of the water with the solids.

[0028] The water introduced into reactor 10 enters the system via a fresh water connection 1. It flows through a fresh water piping system 37, which distributes the fresh water throughout the system, and reaches a fresh water temperature control module 40 located upstream of reactor 10, where the fresh water is heated. The fresh water temperature control module 40 includes a water tank 3 equipped with a heating element 4. The water heated in the water tank 3 then flows into reactor 10 via a supply line 5 and the first water inlet.

[0029] The gaseous ammonia produced in reactor 10 enters a first dissolving tank 11 of the plant via a first dip tube 41, which is connected to the first gas outlet of reactor 10. The dissolving tank 11 is partially filled with fresh water from the fresh water supply system 37. The arrangement of the first dip tube 41 is such that the gaseous ammonia is introduced into the first dissolving tank 11 below the water surface. In the first dissolving tank 11, the gaseous ammonia dissolves at least partially in the fresh water, enriching it with ammonia, so that ammonia water with an initial ammonia concentration of, for example, 20% is produced.

[0030] The first dissolving tank provides a second water inlet for introducing fresh water from the fresh water supply system 37 into the first dissolving tank 11, a second gas outlet for water-soluble gaseous ammonia, and a first withdrawal opening 68 for the ammonia solution of the first concentration. A second dissolving tank 12 is connected downstream of the first dissolving tank 11. The first dissolving tank 11 and the second dissolving tank 12 are connected via a second immersion pipe 42, the second immersion pipe 42 being connected to the second gas outlet of the first dissolving tank 11 and terminating in the second dissolving tank 12 such that, during the production of the ammonia solution, an opening of the second immersion pipe 42 is located below the water level of the fresh water provided in the second dissolving tank 12.The fresh water enters the second dissolving tank 12 via a third water inlet, which is connected to the fresh water supply system 37.

[0031] In addition to the third water inlet, the second dissolving tank has a third gas outlet and a second extraction port 69. Ammonia water with a second ammonia concentration of typically about 4% can be drawn from the second dissolving tank via the second extraction port 69. The lower concentration of ammonia in the second concentration ammonia water is due to the fact that only the unreacted, water-insoluble gaseous ammonia from the first dissolving tank 11 enters the second dissolving tank 12 via the second immersion pipe 42 and enriches the water there to a lesser extent than the gaseous ammonia from reactor 10 enriches the fresh water in the first dissolving tank 11.

[0032] In the present embodiment, a conveying means 43, 44 for conveying the gaseous ammonia is assigned to the first immersion pipe 41 and / or the second immersion pipe (42). In particular, a pump or a compressor serves as the conveying means 43, 44.

[0033] An exhaust gas aftertreatment module 6 of the system is connected to the second dissolving tank 12. In the present embodiment of the invention, the exhaust gas aftertreatment module 6 is connected to the third gas outlet of the second dissolving tank 12. The second dissolving tank 12 and the exhaust gas aftertreatment module 6 are connected via a residual gas line 66.

[0034] The exhaust gas aftertreatment module 6 is connected to a fuel gas connection 2 via a fuel gas connection line 38. Fuel gas is supplied to the exhaust gas aftertreatment module 6 via the fuel gas connection line 38. Natural gas, for example, serves as the fuel gas.

[0035] The exhaust aftertreatment module 6 also includes an ignition device (not shown). The ignition device is designed to combust the mixture of the still water-insoluble gaseous ammonia from the second dissolving container and the fuel gas. The exhaust gas from this combustion, in which the ammonia concentration is below the specified emission values, is discharged via an exhaust line 67, preferably into the open air.

[0036] The reactor 10, the first dissolving vessel 11, and the second dissolving vessel 12 define a central, first level 51 of the plant. In addition to the first level 51, the plant provides functional components located in a second level 52 above the first level 51, as well as further functional components in a third level 53 below the first level 51.

[0037] The components of the upper second level 52 serve primarily for feeding the solids. In the present example, the system, corresponding to the number of solid inlets 63, 64, 65 of the reactor 10, provides a supply and dosing module with a total of three reservoirs 14, 15, 16 for three different or identical solids and three dosing devices 17, 18, 19 assigned to the reservoirs 14, 15, 16 for dosing the solids. Suitable storage containers can be provided for storing the solids. If, for example, the solids are supplied in the form of solid granules, silos or bags can serve as reservoirs 14, 15, 16 for the granular solids. The dosing devices 17, 18, 19 can then, for example, be designed in the form of a screw conveyor.

[0038] By assigning the supply and dosing module to the upper, second level 52 of the plant, gravity can be advantageously used to fill the reactor with the solids.

[0039] Below the middle first level 51, the lower, third level 53 is provided. In the lower level 53, in particular, a collection tank 7 assigned to reactor 10, a first intermediate storage tank 8 assigned to the first dissolving tank 11, and a second intermediate storage tank 9 assigned to the second dissolving tank 12 are arranged.

[0040] The first intermediate storage tank 8, which is assigned to the first dissolving tank 11 and connected to the first dispensing opening 68, serves to receive and store the ammonia solution of the first concentration present in the first dissolving tank 11. Similarly, the second intermediate storage tank 9, which is assigned to the second dissolving tank 12 and connected to the second dispensing opening 69 of the second dissolving tank 12, serves to receive the ammonia solution of the second concentration provided in the second dissolving tank 12.

[0041] To further utilize the ammonia water of the first concentration and the ammonia water of the second concentration, a withdrawal module 30 is provided, connected to the first intermediate storage tank 8 and the second intermediate storage tank 9. The withdrawal module 30 has a first mixing agent 31 assigned to the first intermediate storage tank 8, and a second mixing agent 32 assigned to the second intermediate storage tank 9. The mixing agents 31 and 32 are designed as valves. They can be opened and closed either fully or partially, thus making it possible to produce ammonia water with a mixed ammonia concentration between 20% and 4%. The ammonia water with the mixed concentration is then pumped via a pump 33, which serves as the conveying medium for the withdrawal module 30, and a first withdrawal line 46 to an external container not belonging to the system, in particular an IBC container.

[0042] The collection tank 7 associated with reactor 10 serves to collect reactor fluid that is produced as a byproduct of the production of gaseous ammonia in reactor 10. The reactor fluid flows from reactor 10 into the collection tank 7 via a closable liquid outlet 34.

[0043] A further extraction module is connected downstream of the collection tank 7. This further extraction module includes an actuated valve as a filling medium 35. A second extraction line 47 connects to this, into which the reactor fluid is pumped by means of a pump 36.

[0044] The reactor fluid, a byproduct of the ammonia water production process, is transferred to a separate container not belonging to the plant for further use. For example, liquid fertilizer is produced as a byproduct of this process.

[0045] Below the third level, a drip tray 48 is arranged as a safety measure. The drip tray 48 serves to collect liquids or solids that accidentally escape during the production of ammonia. The drip tray 48 thus protects against environmental contamination.

[0046] The plant also has a coolant circuit 25. The coolant circuit 25 comprises a first cooling jacket 21 assigned to reactor 10, a second cooling jacket 22 assigned to the first dissolving tank 11, a third cooling jacket 23 assigned to the second dissolving tank 12, and a fourth cooling jacket 24 assigned to the collection tank 7. Furthermore, the coolant circuit 25 includes a coolant reservoir 26, a coolant conveying system 27, and a coolant temperature control module 28, which is configured to cool and / or heat the coolant. For example, the ammonia solution in the first and second dissolving tanks 11 and 12 is cooled to a temperature of, for example, 12 °C using the cooling circuit 25.

[0047] The individual cooling jackets 21, 22, 23, 24 of the coolant circuit 25 can be controlled and activated individually and separately. This makes it possible, for example, to cool the dissolving tanks 11, 12 while the coolant does not flow through the first cooling jacket 21. The reactor 10 is then not cooled. The individual sub-circuits of the coolant circuit 25 are thus assigned shut-off devices that allow the coolant to flow through the individual cooling jackets 21, 22, 23, 24 selectively and as required. In the present embodiment of the invention, the coolant circuit 25, the fresh water temperature control module 40, the exhaust gas aftertreatment module 6, and the fresh water piping system 37 are not specifically assigned to any one of the three levels 51, 52, 53. They can, in particular, be installed at a suitable location in the system as needed.The coolant circuit 25 is preferably assigned to the first level 51 or the third level 53, since the reactor 10 to be cooled and the containers 7, 11, 12 to be cooled are arranged in the middle of the first level 51 and the lower third level 53. Due to the horizontally upward-facing exhaust gas line 67, the exhaust gas treatment module 6 is preferably assigned to the middle of the first level 51 or the upper of the second level 52. The fresh water temperature control module 40 is preferably assigned to the middle of the first level, since it is functionally part of the reactor 10 and will often be located adjacent to it.

[0048] To ensure the safe operation of the plant, it is equipped with various temperature, pressure, flow, and level sensors. Level sensors are specifically located at reactor 10, dissolving tanks 11 and 12, collection tank 7, and intermediate storage tanks 8 and 9. Flow sensors are located, for example, at collection tank 7, intermediate storage tanks 8 and 9, extraction module 30, and the additional extraction module. Reactor 10 and tanks 7, 8, 9, 11, and 12 also typically have temperature and pressure sensors.

[0049] Furthermore, reactor 10 and containers 7, 8, 9, 11, 12 are typically equipped with pressure relief valves and valve closures for the residual emptying of reactor 10 and containers 7, 8, 9, 11, 12 respectively.

[0050] Reference symbol list

[0051] 1 fresh water connection

[0052] 2 Fuel gas connection

[0053] 3 water containers

[0054] 4 heating elements

[0055] 5 Supply line

[0056] 6 Exhaust aftertreatment module

[0057] 7 collection containers

[0058] 8 first intermediate storage tank

[0059] 9 second intermediate storage tank

[0060] 10 Reactor

[0061] 11 first solvent container

[0062] 12 second solvent container

[0063] 14 stock

[0064] 15 stock

[0065] 16 stock

[0066] 17 Dosing agents

[0067] 18 Dosing agents

[0068] 19 Dosing agents

[0069] 21 Cooling jacket

[0070] 22 Cooling jacket

[0071] 23 Cooling jacket

[0072] 24 Cooling jacket

[0073] 25 Coolant circuit

[0074] 26 Coolant supply

[0075] 27 Funding for the coolant

[0076] 28 Coolant temperature control module

[0077] 30 extraction module

[0078] 31 Mixing agents 11

[0079] 32 Mixing agents 12

[0080] 33 Pump (extraction module) Lockable liquid outlet Filling medium (additional extraction module) Pump (additional extraction module) Fresh water supply system Fuel gas connection line Pump Fresh water temperature control module First immersion pipe Second immersion pipe Conveyor Conveyor Agitator First extraction line Second extraction line Drip tray First level Second level Third level Temperature sensor Pressure sensor Flow rate sensor First solids inlet Second solids inlet Third solids inlet Residual gas line

[0081] Exhaust pipe first sampling opening second sampling opening

Claims

Patent claims 1. Plant for the batch production of ammonia in the form of ammonia water, comprising a reactor (10) for producing gaseous ammonia, wherein the reactor (10) provides a water inlet for introducing water into the reactor (10), at least one solid inlet (63, 64, 65) for introducing at least one solid reacting with the water into the reactor (10), an agitator (45) for mixing the water and the at least one solid, and a first gas outlet for the gaseous ammonia; a first dissolving vessel (11) for dissolving the gaseous ammonia in water and for providing ammonia water of a first concentration, wherein the first dissolving vessel (11) has a second water inlet for introducing fresh water into the first dissolving vessel (11); and a first dip tube (41) through which the gaseous ammonia from the reactor (10) can be supplied to the first dissolving vessel (11). and that is connected to the first gas outlet,a second gas outlet for non-aqueous gaseous ammonia and a first extraction port (68) for the ammonia solution of the first concentration, a fresh water connection (1) and a fresh water supply system (37) for supplying fresh water, a supply and metering module connected to the solids access (63, 64, 65) of the reactor (10), wherein the supply and metering module provides at least one reservoir (14, 15, 16) for the at least one solid and a metering agent (17, 18, 19) for the at least one solid, a withdrawal module (30) for the ammonia water, wherein the withdrawal module (30) is connected to the first withdrawal opening (68) of the first dissolving tank (11) and provides a filling means which is set up for filling a container not belonging to the system with the ammonia water.

2. The system according to claim 1, comprising a second dissolving vessel (12) for dissolving the gaseous ammonia not dissolved in water in the first dissolving vessel (11) in water and for providing ammonia water of a second concentration, wherein the second dissolving vessel (12) provides a third water inlet for introducing fresh water into the second dissolving vessel, a second immersion pipe (42) through which the gaseous ammonia not dissolved in water in the first dissolving vessel (11) can be supplied to the second dissolving vessel (12) and which is connected to the second gas outlet, a third gas outlet for gaseous ammonia not dissolved in water, and a second dispensing opening (69) for the ammonia water of the second concentration.

3. System according to claim 2, characterized in that the extraction module (30) is connected to the second extraction opening (69) of the second dissolving container (12) and provides at least one further filling agent and / or at least one mixing agent (31, 32) which is configured to mix the ammonia water of the first concentration with the ammonia water of the second concentration, and that the at least one mixing agent (31, 32) is arranged such that ammonia water with a mixed concentration can be filled into the container not belonging to the system.

4. System according to one of claims 1 to 3, characterized in that an exhaust gas aftertreatment module (6) is provided, wherein the exhaust gas aftertreatment module (6) is connected to the second gas outlet of the first dissolving container (11) and / or to the third gas outlet of the second dissolving container (12), is connected to a fuel gas connection (2) via a fuel gas connection line (38) and an ignition device provides, and that the exhaust aftertreatment module (6) is designed to burn off gaseous ammonia.

5. Plant according to one of claims 1 to 4, characterized in that a water tank (3) is provided upstream of the reactor (10) and connected to the fresh water supply system (37), wherein the water tank (3) has means for cooling and / or heating the fresh water and is connected to the water inlet of the reactor (10) via a supply line (5) in such a way that the water from the water tank (3) can be supplied to the reactor (10).

6. Plant according to one of claims 1 to 5, characterized in that a first solids inlet (63), a second solids inlet (64) and a third solids inlet (65) for the separate feeding of three solids are provided on the reactor (10) and that the supply and metering module provides three reservoirs (14, 15, 16) for the three solids as well as three metering means (17, 18, 19) for the separate metering and feeding of the three solids to the reactor (10).

7. System according to one of claims 1 to 6, characterized in that the supply and dosing module is configured for storing, dosing and feeding a solid granulate and that the at least one solid is provided as a solid granulate.

8. System according to claim 7, characterized in that the supply and dosing module is configured to receive bags as containers in which the at least one solid is provided.

9. System according to one of claims 1 to 8, characterized in that a conveying means (43, 44) and preferably a pump and / or a compressor are assigned to the first immersion pipe (41) and / or the second immersion pipe (42).

10. Plant according to one of claims 1 to 9, characterized in that the reactor (10) has a closable liquid outlet (34) for emptying the reactor (10) and that a collection container (7) is connected to the liquid outlet (45), wherein the collection container (7) serves to receive reactor liquid that arises as a by-product of the production of ammonia in the form of ammonia water, and / or that a further extraction module is assigned to the collection container (7), wherein the further extraction module provides a filling device (35), wherein the filling device (35) is configured to fill a further container not belonging to the plant with the reactor liquid.

11. Plant according to one of claims 1 to 10, characterized in that a first intermediate storage tank (8) and / or a second intermediate storage tank (9) are connected to the first extraction opening (68) of the first dissolving tank (11) for storing the ammonia water of the first concentration and / or the ammonia water of the second concentration.

12. Plant according to one of claims 1 to 11, characterized in that the plant provides a plurality of levels at different heights, wherein the reactor (10) and the first and / or second dissolving tank (11, 12) are provided in a first horizontal level, wherein the supply and dosing module is arranged above the first horizontal level and defines a second level of the plant, and wherein the withdrawal module (30) and / or the further withdrawal module is arranged below the first horizontal level and defines a third level of the plant.

13. Plant according to one of claims 1 to 12, characterized in that the reactor (10) and / or the first dissolving tank (11) and / or the second dissolving tank (12) and / or the collection tank (7) connected to the liquid outlet of the reactor (10) and / or the first intermediate storage tank (8) and / or the second intermediate storage tank (9) provide a cooling jacket (21, 22, 23, 24) and / or that a coolant circuit (25) is provided, wherein the coolant circuit (25) comprises the at least one cooling jacket (21, 22, 23, 24) as well as a reservoir (26) for the coolant, a conveying means (27) for the coolant and a coolant temperature control module (28) for cooling and / or heating the coolant.

14. System according to claim 13, characterized in that the extraction module (30) and / or the further extraction module provides a conveying means and preferably a pump (33, 36) for conveying the ammonia water and / or the reactor fluid to the container and / or the further thread.

15. System according to one of claims 1 to 14, characterized in that the at least one mixing agent (31, 32) of the extraction module and / or the pump (33, 36) of the extraction module (30) and / or of the further extraction module simultaneously serves as a filling agent of the extraction module (30) and / or of the further extraction module.

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