Propylene glycol reforming

Abstract

The invention relates to a catalyst for the reforming of propylene glycol, comprising a support material (1) and a catalytic constituent (2), wherein the support material (1) is composed of one or more metal oxides, and the catalytic constituent (2) comprises at least one element selected from the following group: Rh, Ru, Pd, Pt and Ni.

Claims

1. A reformer reactor for the reforming of propylene glycol, comprising a reactor housing having an inlet and an outlet and containing a catalyst comprising a support material and a catalytic constituent, wherein the support material is composed of at least one metal oxide, and the catalytic constituent comprises at least one of Ru, Rh, Pd, Pt and Ni, wherein plates are accommodated in the reactor housing and the catalyst has been applied as surface coating to at least one of the plates, the plates having channels and/or flow-directing elements, and wherein the plates are arranged horizontally, one above the other and parallel to each other.

2. The reformer reactor of claim 1 for the reforming of propylene glycol, wherein the catalyst has been introduced as bed into the reactor housing.

3. The reformer reactor of claim 1 for the reforming of propylene glycol, wherein the catalyst has been applied as surface coating to at least part of the interior walls of the reactor housing.

4. The reformer reactor according to claim 3, wherein the surface coating has been applied by one of the following methods: dip coating, spraying, jet printing or screen printing.

5. The reformer reactor according to claim 1, wherein the surface coating has been applied by one of the following methods: dip coating, spraying, jet printing or screen printing.

Description

(1) The invention is illustrated below with the aid of drawings. The drawings show:

(2) FIG. 1 a schematic depiction of a region of the support material of a catalyst according to the invention with catalytic constituent,

(3) FIG. 2 a reformer reactor according to the invention,

(4) FIG. 3 a cross section through the reformer reactor along the line B-B and

(5) FIG. 4 an enlarged detail of FIG. 3.

(6) FIG. 1 schematically shows the support material 1 which is produced from metal oxide. The support material 1 has, in particular, a high specific surface area. A high specific surface area is, in particular, realized by means of an open-pored material. The catalytic constituent 2 is located on the support material 1. The catalytic constituent 2 can be present as full-area layer or as microparticles or nanoparticles distributed over the surface on the support material 1. The support material 1 is preferably uniformly coated with the catalytic constituent 2.

(7) FIG. 2 shows a reformer reactor R. The reformer reactor R comprises a reactor housing G, an inlet E for introduction of a gas and an outlet A for discharge of a further gas. The reactor housing G comprises walls W. Plates P or flow-directing elements can be accommodated in the reactor housing G.

(8) FIG. 3 shows a cross section along the line B-B of FIG. 2 of the reformer reactor R. The reactor housing G is formed by walls W. The inward-directed surface of the walls W is denoted by the reference symbol I. In the reactor housing G of the reformer reactor R, plates P can, for example, be arranged horizontally above one another.

(9) FIG. 4 shows a section of FIG. 3. This section shows an interior wall I of the wall W which is coated with a surface coating 3. Plates P present in the reactor housing G are advantageously also coated with the surface coating 3. The surface coating 3 comprises the support material 1 and the catalytic constituent 2. The surface coating 3 can be applied by means of a known coating method to the walls W and plates P or flow-directing elements which are not shown. One of the following methods is advantageously employed: dip coating, spraying, jet printing or screen printing.

LIST OF REFERENCE SYMBOLS

(10) 1 Support material 2 Catalytic constituent 3 Surface coating A Outlet E Inlet G Reactor housing I Interior wall P Plate R Reformer reactor W Wall