DE102016121688A1 - A process for dehydrogenating a hydrogenated liquid hydrogen carrier and reactor - Google Patents

Abstract

It is a process for dehydrogenating a hydrogen-enriched liquid hydrogen carrier in a reactor, wherein the hydrogen-enriched liquid hydrogen carrier is fed to a first channel of the reactor, then the hydrogen carrier is fed to a second channel of the reactor, either in the first channel and / or or in the second channel, hydrogen in the reactor is gaseously dissolved from the hydrogen carrier due to a catalytic reaction and a dehydrogenated hydrogen carrier is obtained.

Description

The invention relates to a method for dehydrogenating a hydrogen-enriched liquid hydrogen carrier in a reactor according to claim 1 and a system comprising a reactor according to claim 10 and a reactor according to claim 15.

It is known in the art to use liquid hydrogen carriers to transport hydrogen. Dehydration is required to dissolve the hydrogen from the liquid hydrogen carrier. The dehydrogenation is an endothermic reaction, so that heat must be supplied to the reactor.

The object of the invention is to provide an improved process, an improved system with a reactor and an improved reactor for dehydrogenating a hydrogen-enriched liquid hydrogen carrier.

The objects of the invention are solved by the independent claims.

An advantage of the method described is that a residual heat in the hydrogen carrier is used before or after the dehydrogenation for heating the reactor. This reduces the energy consumption of the process.

It is proposed a method for dehydrogenating a hydrogen-enriched liquid hydrogen carrier in a reactor, wherein the hydrogen-enriched liquid hydrogen carrier is fed to a first channel of the reactor, wherein the hydrogen carrier is then fed to a second channel of the reactor, either in the first channel and / or in the second channel, hydrogen in the reactor is gaseously dissolved from the hydrogen carrier hydrogen due to a catalytic reaction and a dehydrogenated hydrogen carrier is obtained.

In one embodiment, the hydrogen carrier between the first and second channels is heated to a second temperature, wherein the heated hydrogen carrier in the second channel is again brought into thermal contact with the reactor and the first channel and the reactor is heated by the heated hydrogen carrier.

In one embodiment, the hydrogen carrier in the first channel and / or in the second channel is heated to a second temperature, wherein the hydrogen carrier is brought in the second channel again in thermal contact with the first channel.

In one embodiment, the liquid hydrogen carrier is heated to a first temperature prior to delivery to the first channel of the reactor.

In one embodiment, the heated hydrogen carrier releases the heat to the reactor via a heat exchanger.

In one embodiment, the liquid hydrogen carrier is heated to a first temperature prior to delivery to the reactor. Thus, a more efficient process management can be achieved.

In one embodiment, the reactor is in the form of a plate heat exchanger, the plate heat exchanger having the first channel and the second channel, the first channel being thermally coupled to the second channel, the first channel and the second channel being thermally coupled and exchanging heat ,

In one embodiment, the hydrogen dissolved in the reactor from the hydrogen carrier is oxidized in a fuel cell.

In one embodiment, the reactor is in the form of a plate heat exchanger, the plate heat exchanger having the first channel, the plate heat exchanger having the second channel, the first channel being thermally coupled to the second channel, the hydrogen carrier applying heat via the first channel emits the second channel.

In one embodiment, the dehydrogenated hydrogen carrier is heated to a second temperature prior to delivery to the reactor. This can support efficient process management.

In one embodiment, the dehydrogenated hydrogen carrier is captured in a store after heat is released to the reactor.

In one embodiment, dibenzyltoluene is used as the hydrogen carrier.

In one embodiment, the liquid hydrogen carrier is pumped through the reactor at a pressure of 1 to 20 bar, in particular through the first channel for the dehydrogenation and / or through the second channel for the dissipation of heat.

There is proposed a system comprising a reactor for dehydrogenating a hydrogen-enriched liquid hydrogen carrier, the reactor having at least a first channel with an inlet for supplying a hydrogen-enriched liquid hydrogen carrier, an output of the first channel having an inlet of a second channel connected to the reactor is. The first channel and / or the second channel are in operative connection with a heat source. The second channel is thermally coupled to the first channel, wherein an output of the second channel is connected to a second drain line, wherein the reactor in the first channel and / or in the second channel comprises a catalyst material, wherein the catalyst material is adapted to hydrogen due to a catalytic reaction from the hydrogen carrier to solve gaseous.

In one embodiment, the output of the first channel is led to the heat source via a first drain line, wherein the heat source is designed to heat the hydrogen carrier, wherein the first drain line is connected to a supply line after the heat source, wherein the feed line to the input of the second Channel of the reactor is connected and leads the heated from the heat source hydrogen carrier to the second channel.

In one embodiment, the reactor has a heat exchanger, wherein the reactor is designed in particular as a plate heat exchanger.

In one embodiment, the reactor has a heating device, in particular an electrical heating device, with which the first channel and / or second channel can be heated.

In one embodiment, the catalyst is arranged as bulk material in the first channel or in the second channel or applied to at least one wall of the first channel or on a wall of the second channel.

Furthermore, a reactor is proposed for carrying out a dehydrogenation process, the reactor having at least one first channel having an inlet for supplying a hydrogen-enriched liquid hydrogen carrier, the first channel being connected to an outlet of a first discharge line, the reactor having a second channel for supplying a hydrogen carrier, wherein the second channel is thermally coupled to the first channel, wherein the first channel or the second channel is connected to a line for discharging the gaseous hydrogen, wherein the reactor in the first channel or in the second channel comprises a catalyst wherein the catalyst is configured to gaseously dissolve hydrogen from the hydrogen carrier due to a catalytic reaction and to produce a dehydrogenated hydrogen carrier.

• 1 eine schematische Darstellung eines Systems zur Dehydrierung eines flüssigen Wasserstoffträgers,
• 2 eine schematische Darstellung eines Reaktors,
• 3 eine Draufsicht auf den Reaktor,
• 4 eine Seitenansicht des Reaktors,
• 5 einen weiteren Querschnitt durch den Reaktor,
• 6 eine schematische Darstellung eines Ausschnittes eines weiteren Reaktors,
• 7 eine weitere Ansicht des weiteren Reaktors, und
• 8 einen weiteren Querschnitt durch den weiteren Reaktor.

The invention will be explained in more detail below with reference to FIGS. Show it

• 1 a schematic representation of a system for dehydrogenation of a liquid hydrogen carrier,
• 2 a schematic representation of a reactor,
• 3 a top view of the reactor,
• 4 a side view of the reactor,
• 5 another cross section through the reactor,
• 6 a schematic representation of a section of another reactor,
• 7 another view of the other reactor, and
• 8th another cross section through the other reactor.

1 shows a schematic representation of a system for dehydrogenating a liquid hydrogen carrier. It is a tank 1 provided in which a liquid hydrogen carrier (LOHC +) is provided, which is enriched with hydrogen. The hydrogen carrier may be, for example, dibenzyltoluene. Furthermore, the liquid hydrogen carrier may also comprise another material which is suitable for receiving and releasing hydrogen. The enriched hydrogen carrier is via a first line 2 a first heater 3 fed.

In the first heating 3 the liquid hydrogen carrier is heated to a first temperature, for example, between 0 ° C and 400 ° C, in particular 300 ° C. Subsequently, the liquid enriched hydrogen carrier from the first heater 3 over a second line 4 a reactor 5 fed.

Depending on the chosen embodiment may be on the first heater 3 be waived. In the reactor 5 becomes the liquid hydrogen carrier through at least a first channel 6 guided. The reactor 5 points in the first channel 6 a catalyst 26 which is suitable for dissolving the hydrogen from the liquid hydrogen carrier upon contact with the liquid enriched hydrogen carrier. As a catalyst material 26 For example, platinum can be used. Dissolving the hydrogen from the liquid hydrogen carrier is an endothermic reaction so that the hydrogen carrier cools and exits the reactor 5 a lower temperature than at the entrance of the reactor 5 having.

An output of the first channel 6 of the reactor 5 is via a third line 7 , which represents a first drain line, with a second heater 8th connected. The heating system 8th represents a heat source and may be in the form of an electric heater or in the form of a heat exchanger or other type of heat source. The dehydrated liquid hydrogen carrier (LOHC-), for example, when leaving the reactor 5 in the third line 7 a temperature between 0 ° C and 300 ° C. In the second heater 8th The dehydrogenated liquid hydrogen carrier is heated to a second temperature. The second temperature may, for example, be in the range of the first temperature or above. In the present example, the liquid dehydrogenated hydrogen carrier is in the second heater 8th heated to a temperature of 350 ° C. The heated, dehydrated liquid hydrogen carrier is from an outlet of the second heater 8th using a fourth line 9 back to the reactor 5 recycled. The fourth line 9 is as a supply line with a second channel 10 of the reactor 5 connected. The second channel 10 is thermally coupled to the first channel 6 , For example, the first and the second channel 6 . 10 at least partially guided along a common, thermally conductive partition. The partition wall is formed of a thermally conductive material, in particular of metal. The liquid dehydrogenated hydrogen carrier thus flows through the second channel as a heat source 10 ,

Depending on the chosen design, the second heater can be dispensed with and the dehydrogenated hydrogen carrier is passed from the first channel to the second channel without heating up. In addition, on the third line 7 be dispensed with and an output of the first channel 6 is directly to an input of the second channel 10 connected. Thus, the connection between the first channel 6 and the second channel 10 within the reactor 5 respectively. Furthermore, in this embodiment, a heater, in particular an electric heater, in the reactor 5 be integrated. The electric heater can be the first channel 6 and / or the second channel 10 be assigned.

Furthermore, also on the first heater 3 outside the reactor 5 be waived. In this embodiment, a heater may be provided in the reactor, with the first and / or the second channel 6 . 10 can be heated.

When flowing through the second channel 10 Heat from the dehydrogenated hydrogen carrier via the thermal coupling, in particular the partition to the first channel 6 and thus delivered to the enriched liquid hydrogen carrier. An output of the second channel 10 stands with a fifth line 11 in connection.

The fifth line 11 represents a second drain line from the reactor 5 to a second tank 12 is guided. Furthermore, the reactor 5 a sixth line 13 on, via which of the liquid hydrogen carrier dissolved gaseous hydrogen of a fuel cell 14 is supplied in the fuel cell 14 For example, the hydrogen can be directly oxidized and used to generate electricity. Instead of the fuel cell 14 can also be provided a storage tank for the hydrogen.

Depending on the chosen design can be on the second heater 8th be dispensed with and the dehydrated hydrogen carrier is without heating from the first channel 6 to the second channel 10 guided. As already stated, the connection between the first and the second channel 6 . 10 via an external line or directly in the reactor.

The reactor 5 can have several first channels 6 and several second channels 10 exhibit. In addition, depending on the selected embodiment, only a portion of the dehydrated liquid hydrogen carrier for the supply to the second heater 8th and thus for further heating of the reactor 5 be used. The other part of the dehydrated liquid hydrogen carrier becomes after passing through the first channel 6 directly into the second tank 12 guided. This will be a seventh line 15 used, the dashed line between the third line 7 and the fifth line 11 is drawn. For branching the hydrogen carrier into the seventh line 15 a valve or a simple branch can be provided.

In another embodiment, the catalyst is not in the first channel 6 but in the second channel 10 arranged. In this embodiment, the enriched hydrogen carrier is only in the second channel 10 dehydrogenates and hydrogen is released only in the second channel. In this embodiment, the second channel is the sixth line 13 connected.

In a further embodiment, the catalyst is in the first channel 6 and in the second channel 10 arranged. In this embodiment, the enriched hydrogen carrier becomes the first channel 6 and in the second channel 10 it dehydrates and it becomes hydrogen in the first channel 6 and in the second channel 10 released. In this embodiment, the first channel 6 and the second channel 10 with the sixth line 13 connected.

The dehydrogenation of the hydrogen takes place in the reactor through the catalyst 26 , The catalyst 26 may cover the walls of the reactor or be present as bulk material. As the hydrogen carrier, there can be used an organic compound which, after enrichment with hydrogen, that is, hydrogenation, produces a piconjugated aromatic compound. The pikonjugierten aromatic compounds are for example benzene, toluene or chemical compositions of benzene and toluene. The dehydrogenation of the at least partially hydrogenated organic compound produces molecular hydrogen, which is then separated from the organic liquid. For this purpose, for example, a gas separator can be used.

Depending on the chosen embodiment, the reactor has a heater 38 on, for example, is powered by electricity. The heater 38 For example, it can be adjacent to the first channel 6 and / or adjacent to the second channel 10 in a wall of the reactor 5 be embedded.

2 shows an embodiment of the reactor 5 in the form of a plate heat exchanger. In this embodiment, the first channel 6 from two subchannels 19 . 20 educated. The two subchannels 19 . 20 are connected to each other on the front, as indicated by the arrow. From the back, the hydrogen carrier flows from the second conduit 4 in the first subchannel 19 of the first channel 6 one. On the front of the hydrogen carrier flows into the second sub-channel 20 and leaves the reactor as a dehydrogenated hydrogen carrier on the back 5 over the third line 7 if in the first channel 6 the catalyst is present. Between the first and the second subchannel 19 . 20 is a first further subchannel 21 of the second channel 10 intended. In addition, next to the first sub-channel 19 a second further subchannel 22 of the second channel 10 intended. Furthermore, next to the second subchannel 20 a third additional subchannel 23 of the second channel 10 intended. The subchannels 19 . 20 are through partitions 39 from the other subchannels 21 . 22 . 23 separated. The partitions 39 are formed of a thermally conductive material, in particular of a metal. The first, second and third further subchannel 21 . 22 . 23 are above inlet openings 40 with a supply channel 24 of the second channel 10 connected. Furthermore, the first, the second and the third further subchannel 21 . 22 . 23 at the opposite upper end via drainage openings 41 with a discharge channel 25 of the second channel 10 connected. By the formation of the reactor 5 in the form of a plate heat exchanger with large partitions 39 between the first channel 6 and the second channel 10 , in particular between the sub-channels 19 . 20 of the first channel 6 and the other subchannels 21 . 22 . 23 of the second channel 10 will be a good heat transfer between the second channel 10 and the first channel 6 reached. Depending on the chosen embodiment, the catalyst material 26 in the first channel 6 and / or in the second channel 10 be arranged.

The partitions 39 are arranged in yz planes parallel to each other. Depending on the chosen design, the partitions 39 be formed bent, wavy or uneven. Advantageously, the partitions form a large area between the first and the second channel 6 . 10 out.

The first and the second channel 6 . 10 and in particular the subchannels 19 . 20 and the other subchannels 21 . 22 . 23 in the area of the partitions 39 a thickness in the x-direction perpendicular to the partition wall 39 preferably less than 50% of a width in the z-direction parallel to the dividing wall 39 and preferably less than 50% of a length in the y-direction parallel to the dividing wall 39 is. In one embodiment, the first and second channels 6 . 10 and in particular the subchannels 19 . 20 and the other subchannels 21 . 22 . 23 in the area of the partitions 39 a thickness in the x-direction perpendicular to the partition wall 39 preferably less than 20% of a width in the z-direction parallel to the dividing wall 39 and preferably less than 20% of a length in the y-direction parallel to the dividing wall 39 is. The length of the partition 39 can be larger than the width of the partition 39 be. This is also the length of the first and the second channel 6 . 10 greater than the width of the first and second channels 6 . 10 , This also includes the length of the subchannels 19 . 20 and the length of the other subchannels 21 . 22 . 23 greater than the width of the subchannels 19 . 20 and the width of the other subchannels 21 . 22 . 23 ,

The heat transfer between the other subchannels of the second channel 10 and the subchannels of the first channel 6 is the better, according to the principle of the heat plate exchanger, the larger the area of the partition wall relative to the volume of the first and the second channel 6 . 10 is. In addition, the partitions 39 correspondingly thin designed to allow a good thermal coupling.

About the feed channel 24 is from the right side over the fourth line 9 fed to the hydrogen carrier. The hydrogen carrier flows through the other sub-channels 21 . 22 . 23 in the direction of the discharge channel 25 , The discharge channel 25 is with the fifth lead 11 connected. When flowing through the other sub-channels 21 . 22 . 23 The hydrogen carrier gives heat to the first and the second subchannel 19 . 20 and thus on the hydrogen-loaded liquid hydrogen carrier. Subsequently, the cooled hydrogen carrier flows through the discharge channel 25 and the fifth line 11 to the second tank 12 from.

The hydrogen-loaded hydrogen carrier gives while flowing through the first and the second sub-channel 19 . 20 Hydrogen in the form of gas, if in the first and second subchannel, the catalyst material is arranged, wherein the hydrogen gas via the sixth line 13 is dissipated.

Is the catalyst material 26 in the first, second and / or third further subchannel 21 . 22 . 23 arranged, the hydrogen carrier is dehydrated in the first, second and / or third further sub-channel and generates hydrogen gas. The hydrogen gas is via the sixth line 13 dissipated.

The hydrogen-loaded hydrogen carrier gives while flowing through the first and the second sub-channel 19 . 20 and when flowing through the first, second and / or third further sub-channel 21 . 22 . 23 Hydrogen in the form of gas, if in the first and second sub-channel and in the first, second and / or third further sub-channel, the catalyst material is arranged. The hydrogen gas is via the sixth line 13 dissipated.

Due to the formation of the reactor 5 According to a principle of a plate heat exchanger, a good thermal coupling between the heated dehydrogenated hydrogen carrier and the hydrogen-charged hydrogen carrier is possible. This can be exploited by simple means the heat of the charged hydrogen carrier or the dehydrogenated hydrogen carrier. An efficient process management can be achieved in which as little heat as possible has to be supplied.

In addition, the reactor has a compact design. Furthermore, the first and the second subchannel offer 19 . 20 or the first, second and / or third further subchannel 21 . 22 . 23 a large area for the application of the catalyst material to the sidewalls of the first and second subchannels 19 . 20 or the first, second or third further subchannel 21 . 22 . 23 , Depending on the chosen embodiment, the subchannels 19 . 20 or the other subchannels 21 . 22 . 23 also with the catalyst material 26 be filled. The catalyst material 26 may consist of particles coated with the catalyst material.

In 2 is a coordinate system with a y-axis, an x-axis and a z-axis drawn, the axes are perpendicular to each other. The feed channel 24 and the discharge channel 25 are arranged plate-shaped in the zx-plane and have a predetermined extent along the y-axis. The dehydrogenated hydrogen carrier flows through the feed channel and the discharge channel in the opposite direction to the x direction. The first and the second subchannel 19 . 20 are each plate-shaped in the yz plane and have a predetermined extent along the x-axis. In the first subchannel 19 the hydrogen-charged hydrogen carrier flows counter to the z-direction and in the second sub-channel 20 the hydrogen carrier flows in the z-direction. The first, second and third further subchannel 21 . 22 . 23 are also arranged in the yz plane and each have a predetermined extent along the x-axis. The hydrogen carrier flows through the other sub-channels 21 . 22 . 23 along the y-axis, as shown by arrows.

3 shows a cross section in the yx plane through the reactor of 2 ,

4 shows an embodiment of another reactor, which is essentially like the reactor 5 of the 2 and 3 is constructed, this reactor 5 however, a first channel with multiple subchannels 19 . 20 . 27 . 28 . 29 . 30 . 31 and a second channel with several further subchannels 21 . 22 . 23 . 33 . 34 . 35 having. The reactor is in the same way as the reactor 2 educated. The illustrated cross section is arranged in the xz plane. Depending on the selected embodiment, only one sub-channel or multiple sub-channels may be provided. In addition, depending on the selected embodiment, only one further sub-channel or more than three further sub-channels may be provided. The subchannels 19 . 20 . 27 . 28 . 29 . 30 . 31 each have connection sections 32 in connection.

5 shows a cross section through the arrangement of 4 in the yz plane. Here are above the first and the second subchannel 19 . 20 in each case a first and a second hydrogen channel 36 . 37 provided, via the dissolved hydrogen from the hydrogen carrier gas to the sixth line 13 is dissipated.

6 shows a schematic representation of another embodiment of a reactor 5 , In this illustration, only a first channel 19 shown, wherein the liquid hydrogen carrier from the back towards the front through the channel 19 flows counter to the z-direction. In the channel 19 is the catalyst 26 arranged in the form of bulk material. On a first side of the canal 19 are a first and a second further subchannel 21 . 22 provided, which has another partition wall 42 are separated. The further partition 42 is perpendicular to the partition 39 educated. The first and the second further subchannel 21 . 22 are arranged substantially perpendicular to the flow direction of the hydrogen carrier parallel to the y-axis. About the first further subchannel 21 the heated, dehydrogenated hydrogen carrier is fed. The dehydrogenated heated hydrogen carrier used as the heat carrier flows in the first further sub-channel 21 in the y-direction and in the second further sub-channel 22 against the y direction.

7 shows a perspective view of another reactor 3 who has several arrangements of 6 having.

8th shows a cross section through the reactor 5 of the 7 , Several channels are provided for the guidance of the enriched hydrogen carrier. In addition, the formed as a bulk catalyst material 26 shown.

The process described provides a hydrogen release reactor of an at least partially hydrogenated organic compound as a hydrogen carrier. The gaseous hydrogen may then be stored or used by a fuel cell to generate electric power. The dissolution of the hydrogen from the enriched hydrogen carrier can take place between room temperature and a temperature of up to 400 ° C. In addition, the enriched hydrogen carrier can be present without pressure and flow through the reactor without pressure or flow through the reactor at a pressure of up to 20 bar.

The reactor 5 may be formed for example in the form of a plate heat exchanger, wherein on one side of the profile to be dehydrogenated hydrogen rich compound flows through and on the other profile side, the heat transfer fluid flows. The organic compound to be dehydrogenated can already be sent to the reactor by prior heating in the hot or hot state. The organic compound, that is, the hydrogen carrier can be used both as a hydrogen supplier and as a heat carrier. When leaving the reactor, the liquid hydrogen carrier may still have residual heat. This can then be used to heat the reactor by heating the dehydrogenated hydrogen carrier and pumping it back through the reactor. There is the possibility that the hydrogen carrier flows through a heater and is heated again. Depending on the chosen embodiment may be on the second heater 8th be waived. Will be on the second heater 8th omitted, the recirculated dehydrogenated hydrogen carrier is used as an insulating jacket against the ambient temperature. This can also save energy.

The plate heat exchanger may, instead of the described embodiments, other forms with other flow profiles such. Countercurrent principle, Gelichstromprinzip, cross flow principle, etc. have.

LIST OF REFERENCE NUMBERS

1

tank

2

first line

3

first heating

4

second line

5

reactor

6

first channel

7

third line

8th

second heating

9

fourth line

10

second channel

11

fifth line

12

second tank

13

sixth lead

14

fuel cell

15

seventh pipe

16

pipe

17

inner wall

18

jacket

19

first subchannel

20

second subchannel

21

first further subchannel

22

second further subchannel

23

third additional subchannel

24

supply channel

25

discharge channel

26

catalyst material

27

third subchannel

28

fourth subchannel

29

fifth subchannel

30

sixth subchannel

31

seventh subchannel

32

connecting portion

33

fourth additional subchannel

34

fifth further subchannel

35

sixth further subchannel

36

first hydrogen channel

37

second hydrogen channel

38

heater

39

partition wall

40

inlet opening

41

drain hole

42

another partition

Claims (16)

Method for dehydrogenating a hydrogen-enriched liquid hydrogen carrier in a reactor, wherein the hydrogen-enriched liquid hydrogen carrier is fed to a first channel of the reactor, then the hydrogen carrier is fed to a second channel of the reactor, wherein either in the first channel and / or in the second channel, hydrogen in the reactor due to a catalytic reaction the hydrogen carrier is dissolved in gaseous form and a dehydrogenated hydrogen carrier is obtained. Method according to Claim 1 wherein the hydrogen carrier between the first and second channels is heated to a second temperature, wherein the heated hydrogen carrier in the second channel is again brought into thermal contact with the reactor and the first channel and the reactor is heated by the heated hydrogen carrier. Method according to Claim 1 or 2 wherein the hydrogen carrier in the first channel and / or in the second channel is heated to a second temperature, wherein the heated hydrogen carrier is brought in the second channel again in thermal contact with the first channel. Method according to one of Claims 1 to 3 wherein the liquid hydrogen carrier is heated to a first temperature prior to delivery to the first channel of the reactor. Method according to one of the preceding claims, wherein the heated hydrogen carrier releases the heat via a heat exchanger to the reactor. The method of claim 1, wherein the reactor is in the form of a plate heat exchanger, the plate heat exchanger having the first channel and the second channel, wherein the first channel is thermally coupled to the second channel, wherein the first channel and the second channel are thermal coupled and heat exchange. Method according to one of the preceding claims, wherein the dehydrogenated hydrogen carrier is collected in a memory after the heat transfer to the reactor. Method according to one of the preceding claims, wherein dibenzyltoluene is used as hydrogen carrier. Method according to one of the preceding claims, wherein the liquid hydrogen carrier with a pressure of 1 to 20 bar flows through the first and / or the second channel. A system comprising a reactor (5) for dehydrogenating a hydrogen-enriched liquid hydrogen carrier, said reactor (5) having at least a first channel (6) having an inlet for supplying a hydrogen-enriched liquid hydrogen carrier, wherein an output of said first channel ( 6) is connected to an input of a second channel (10) of the reactor (5), wherein the first channel (6) and / or the second channel (10) with a heat source (8, 38) are in operative connection, wherein the second Channel (10) is thermally coupled in the reactor (5) with the first channel (6), wherein an output of the second channel (10) to a second discharge line (11) is connected, wherein the reactor (5) in the first channel (6 ) or in the second channel (10) comprises a catalyst material (26), wherein the catalyst material (26) is adapted to solve hydrogen gas due to a catalytic reaction of the hydrogen carrier hydrogen. System after Claim 10 in that the outlet of the first channel (6) is led to the heat source (8) via a first outlet line (7), the heat source (8) being designed to heat the hydrogen carrier, the first outlet line (7) following the heat source (8) is connected to a feed line (9), wherein the feed line (9) is connected to the input of the second channel (10) of the reactor (5) and the hydrogen carrier heated by the heat source (8) to the second channel (10 ) leads. System after Claim 10 or 11 , wherein the reactor (5) has a heat exchanger, which is designed in particular as a plate heat exchanger. System according to one of Claims 10 to 12 , wherein the reactor (5) has a heating device (38), in particular an electric heating device, with which the first channel (6) and / or second channel (10) can be heated. System according to one of Claims 10 to 13 wherein the catalyst (26) is arranged as bulk material in the first channel (6) and / or in the second channel (10) or on at least one wall of the first channel (6) and / or on a wall of the second channel (10 ) is applied. Reactor for carrying out a dehydrogenation process according to one of the Claims 1 to 9 in which the reactor (5) has at least one first channel (6) with an inlet for supplying a hydrogen-enriched liquid hydrogen carrier, an outlet of the first channel (6) being connected to an inlet of a second channel (10) of the reactor (5 ), the second channel (10) being thermally coupled to the first channel (6), the first channel (6) and / or the second channel (10) being connected to a conduit (13) for discharging the first channel (6) the reactor (5) in the first channel (6) and / or in the second channel (10) comprises a catalyst material (26), wherein the catalyst material (26) is adapted to hydrogen due to a catalytic reaction of the Dissolve hydrogen carrier in gaseous form and produce a dehydrogenated hydrogen carrier. Reactor after Claim 15 wherein the reactor comprises a plate heat exchanger, the first and second channels (6, 10) being adjacent plates of the plate heat exchanger.

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