Reactor for release of hydrogen from a liquid compound

Patent metadata

Field	Value
Publication number	US-2016137495-A1
Application number	US-201615003507-A
Country	US
Kind code	A1
Filing date	Jan 21, 2016
Priority date	Jul 22, 2013
Publication date	May 19, 2016
Grant date	—

Abstract

A reactor configured to release hydrogen from a hydrogen-bearing, liquid compound, having a reactor vessel which comprises at least one body with metallic support structure. A solid, highly porous coating is applied on said at least one body which comprises catalytically acting substances for the release of hydrogen from the liquid, hydrogen-bearing compound, wherein the at least one body with metallic support structure comprises at least one cutout with a volume that remains the same or becomes larger from along a cross-sectional dimension extending from bottom to top, based on the reactor vessel.

First claim

What is claimed is:

1 . A reactor configured to release hydrogen from a hydrogen-bearing, liquid compound, having a reactor vessel which comprises at least one body with metallic support structure, wherein a solid, highly porous coating is applied on said at least one body which comprises catalytically acting substances for the release of hydrogen from the liquid, hydrogen-bearing compound, wherein the at least one body with metallic support structure comprises at least one cutout with a volume that remains the same or becomes larger from along a cross-sectional dimension extending from bottom to top, based on the reactor vessel.

2 . The reactor as claimed in claim 1 , wherein the cutout is one of conical and frustoconical, with a downwardly directed point to the cone.

3 . The reactor as claimed in claim 1 , wherein the cutout is cylindrical, with the cylinder circumference remaining the same or increasing in a step fashion along the cross-sectional dimension extending from bottom to top.

4 . The reactor as claimed in claim 1 , wherein the reactor vessel comprises a longitudinal axis which runs perpendicularly from bottom to top.

5 . The reactor as claimed in claim 4 , wherein the longitudinal axis of the reactor vessel is congruent with a longitudinal axis of the cutout.

6 . The reactor as claimed in claim 1 , wherein the reactor vessel is a tube bundle of individual tubes connected in parallel,
wherein the individual tubes of said bundle are held at a distance from each other, each comprising at least one body having a cutout, wherein a flow of the hydrogen-bearing compound occurs around each body in a respective tube, with a process of heat exchange between the tube bundle and its surroundings bringing said bundle to reaction temperature, by subjecting its outer surface to the action of a heating medium, in a housing which is fluidtight for the heating medium, and wherein the housing comprises at least one feed opening, one drain opening and one feed collection chamber for the heating medium.

7 . The reactor as claimed in claim 2 , wherein the reactor vessel is a tube bundle of individual tubes connected in parallel,
wherein the individual tubes of said bundle are held at a distance from each other, each comprising at least one body having a cutout, wherein a flow of the hydrogen-bearing compound occurs around each body in a respective tube, with a process of heat exchange between the tube bundle and its surroundings bringing said bundle to reaction temperature, by subjecting its outer surface to the action of a heating medium, in a housing which is fluidtight for the heating medium, and wherein the housing comprises at least one feed opening, one drain opening and one feed collection chamber for the heating medium.

8 . The reactor as claimed in claim 3 , wherein the reactor vessel is a tube bundle of individual tubes connected in parallel,
wherein the individual tubes of said bundle are held at a distance from each other, each comprising at least one body having a cutout, wherein a flow of the hydrogen-bearing compound occurs around each body in a respective tube, with a process of heat exchange between the tube bundle and its surroundings bringing said bundle to reaction temperature, by subjecting its outer surface to the action of a heating medium, in a housing which is fluidtight for the heating medium, and wherein the housing comprises at least one feed opening, one drain opening and one feed collection chamber for the heating medium.

9 . The reactor as claimed in claim 6 , wherein an operating position of the reactor is selected such that the individual tubes of the tube bundle extend vertically.

10 . The reactor as claimed in claim 7 , wherein an operating position of the reactor is selected such that the individual tubes of the tube bundle extend vertically.

11 . The reactor as claimed in claim 8 , wherein an operating position of the reactor is selected such that the individual tubes of the tube bundle extend vertically.

12 . The reactor as claimed in claim 6 , wherein the individual tubes of the tube bundle are connected by heat transfer lamellae.

13 . The reactor as claimed in claim 12 , wherein the heat transfer lamellae are impervious to the heating medium and the tubes of the tube bundle project through these lamellae.

14 . The reactor as claimed in any of claim 6 , wherein a guide means is provided for the heating medium and diverts said heating medium in its flow direction, in the housing in the region of the tube bundle, such that the individual tubes of the tube bundle are subjected to a flow of the heating medium over a part of a length of each respective individual tube, with a different direction of flow in each case.

15 . The reactor as claimed in claim 14 , wherein the guide means connects defined heat transfer lamellae outside the tube bundle so as to reverse the direction of flow.

16 . The reactor as claimed in claim 6 , wherein the heating medium is hot gas.

17 . The reactor as claimed in claim 6 , wherein hydrogen is released in the reactor from the hydrogen-bearing compound, by catalytic dehydrogenation under pressure and at high temperature, and is taken off in an upwardly ascending direction in the individual tubes.

18 . A method for supplying a consumer at least proportionally with hydrogen by a reactor comprising:
releasing, by the reactor, hydrogen from a hydrogen-bearing, liquid compound, having a reactor vessel which comprises at least one body with metallic support structure; applying a solid, highly porous coating on said at least one body with metallic support structure which comprises catalytically acting substances for the release of hydrogen from the liquid, hydrogen-bearing compound, wherein the at least one body with metallic support structure comprises at least one cutout with a volume that remains the same or becomes larger from along a cross-sectional dimension extending from bottom to top, based on the reactor vessel; supplying a reactor with a hydrogen-bearing compound from a first storage tank thereof via a feed line, and the compound dehydrogenated at high temperature and low pressure is led off via a drain line from the reactor into a second storage tank; and supplying, by the reactor, hydrogen to a combustion chamber of the consumer via a connecting line.

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Eypasch Martin
• Zenner Michael
• Wasserscheid Peter
• Peters Willi

Classifications

• B01J2219/00085

  Plates; Jackets; Cylinders · CPC title

• C01B2203/066

  with fuel cells · CPC title

• B01J16/005 Primary

  in the presence of catalytically active bodies, e.g. porous plates · CPC title

• B01J19/2415

  Tubular reactors · CPC title

• C01B2203/1005

  Arrangement or shape of catalyst · CPC title