Method for the dehydrogenation of organic molecules

Patent metadata

Field	Value
Publication number	US-11440795-B2
Application number	US-201716319778-A
Country	US
Kind code	B2
Filing date	Jul 14, 2017
Priority date	Jul 22, 2016
Publication date	Sep 13, 2022
Grant date	Sep 13, 2022

Abstract

A process for dehydrogenating organic molecules (OM) and a reaction vessel (RB) suitable for the process for dehydrogenating organic molecules by means of an inductive field (IF), wherein the reaction vessel comprises a device for generating an inductive field and a solid loose material (FLM), and wherein the reaction vessel and its contents are free of platinum, palladium, rhodium, gold, iridium, titanium, tantalum or ruthenium.

First claim

The invention claimed is:

1. A process for dehydrogenating organic molecules (OM), having the following steps:
a) feeding the organic molecules (OM) into a reaction vessel (RB),
where the reaction vessel
i) has been provided with a device for generating an inductive field (IF); and
ii) has a susceptor (S) for the inductive field (IF),

b) applying an inductive field (IF) and allowing the inductive field (IF) to act on the susceptor (S) and the organic molecules (OM),
c) removing hydrogen from the reaction vessel (RB) during and/or after step b),
d) removing dehydrogenated organic molecules (DOM) from the reaction vessel (RB) during and/or after step b),
wherein the susceptor (S) comprises an active susceptor (AS),
the active susceptor (AS) is such that it can couple magnetically to the inductive field (IF), and
the reaction vessel is such that
the active susceptor (AS) can couple to the inductive field (IF),
the susceptor (S) comes into contact with the organic molecules (OM), and
the reaction vessel and its contents are free of platinum, palladium, rhodium, gold, iridium, titanium, tantalum and ruthenium.

2. The process of claim 1 , wherein the susceptor (S) is a solid loose material (FLM) or a fixed susceptor (RS).

3. The process of claim 2 , wherein the fixed susceptor (RS) comprises a catalytic material (KM), or the fixed susceptor (RS) takes the form of a carrier for the catalyst material (KM).

4. The process of claim 2 , wherein the solid loose material (FLM) consists of the catalytic material (KM) or has an outer layer (Sch) comprising a catalytic material (KM).

5. The process of claim 4 , wherein the elements of the solid loose material (FLM) each have a volume of 0.040 cm 3 to 16.75 cm 3 .

6. The process of claim 4 , wherein the elements of the solid loose material (FLM) have an outer layer (Sch) comprising a catalyst material (KM) and having an inner core (IK) comprising at least one phase change material (PCM).

7. The process of claim 3 , wherein the catalytic material (KM) is Cr, V, Zn, Co, Mo, W, Ni, Al, Cu, iron, Fe 2 O 3 , (CoMoAl) x O y , or alloys of Cu, Zn, Cr, Ni, Mo, or iron.

8. The process of claim 3 , wherein the susceptor (S) is a fixed susceptor (RS) comprising a catalytic material (KM) and/or the susceptor (S) is a solid loose material (FLM) consisting of the catalytic material (KM) or has an outer layer (AS) comprising a catalytic material (KM), wherein the susceptor (S) has a roughness of 30 to 200 μm.

9. The process of claim 1 , wherein the inductive field (IF) has a frequency of 50 to 600 kHz and/or a current of 4.0 to 20 amperes.

10. The process of claim 1 , wherein the process is conducted continuously and the average dwell time of the organic molecules (OM) in step b) is 1.0 to 16 min/g LOHC.

11. The process of claim 1 , wherein the organic molecules (OM) are liquid and/or have been dissolved in a solvent.

12. The process of claim 1 , wherein the maximum temperature of the organic molecules (OM) within the reaction vessel (RB) is not higher than 400° C.

13. A reaction vessel (RB) which:
i) has been provided with a device for generating an inductive field (IF); and
ii) comprises a solid loose material (FLM),
wherein the solid loose material (FLM)
is such that it can couple magnetically to the inductive field (IF) and
consists of a metal (M) or metal alloy (ML) which can couple magnetically to the inductive field (IF) or has an outer layer (Sch) comprising or consisting of a metal (M) or metal alloy (ML), and
the reaction vessel is such that the solid loose material (FLM) can couple to the inductive field (IF), and
the reaction vessel has an inlet for supply of organic molecules (OM),
the reaction vessel is configured such that the solid loose material (FLM) comes into contact with the organic molecules (OM) after they have been supplied; and
wherein the reaction vessel and its contents are free of platinum, palladium, rhodium, gold, iridium, titanium, tantalum, and ruthenium.

14. A process for dehydrogenating organic molecules (OM), comprising the following steps:
a) feeding the organic molecules (OM) into a reaction vessel (RB),
wherein the reaction vessel;
i) has been provided with a device for producing an inductive field (IF); and
ii) comprises a solid loose material (FLM),

b) applying an inductive field (IF) and allowing the inductive field (IF) to act on the solid loose material (FLM) and the organic molecules (OM),
c) removing hydrogen from the reaction vessel (RB) during and/or after step b),
d) removing dehydrogenated organic molecules (DOM) from the reaction vessel (RB) during and/or after step b),
wherein the solid loose material (FLM)
is such that it can couple magnetically to the inductive field (IF), and
consists of a metal (M) or metal alloy (ML) which can couple magnetically to the inductive field (IF) or has an outer layer (Sch) comprising a metal (M) or metal alloy (ML), and
the reaction vessel is such that the solid loose material (FLM) can couple to the inductive field (IF) and the solid loose material (FLM) comes into contact with the organic molecules (OM).

Assignees

• Fraunhofer Ges Zur Forderung Der Angewandten Forschung
• Fraunhofer Ges Forschung

Inventors

• Hornung Andreas
• Schmetterer Clemens
• Dommel Daniela

Classifications

• B01J8/0278

  Feeding reactive fluids (for solid material B01J8/0015) · CPC title

• Y02E60/32

  Hydrogen storage · CPC title

• B01J8/42 Primary

  with fluidised bed subjected to electric current or to radiations {this sub-group includes the fluidised bed subjected to electric or magnetic fields} · CPC title

• C01B3/22

  by decomposition of gaseous or liquid organic compounds · CPC title

• B01J8/085

  Feeding reactive fluids (for solid material, see B01J8/0015) · CPC title