# US 8,465,563 B2 · Method and device for producing a synthesis gas containing H2 and CO

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- Number: US 8,465,563 B2
- Document ID: US8465563B2
- Status: Granted
- Kind: B2
- Application number: 11/721,115
- Filed: 2005-12-01
- Published: 2010-02-25
- Granted: 2013-06-18
- Earliest claimed: 2004-12-08
- Assignees: Lurgi GmbH
- Applicants: Daniel Mateos-Queiruga; Ulrich Wolf
- Inventors: Daniel Mateos-Queiruga; Ulrich Wolf
- Web page: https://patentgrep.com/patent/US8465563B2

## CPC

- B01J 8/0278: {Feeding reactive fluids (for solid material B01J8/0015)}
- B01J 8/025: {in a cylindrical shaped bed}
- B01J 8/0285: {Heating or cooling the reactor (for tubular reactors in furnaces B01J8/062)}
- C01B 3/384: with external heating of the catalyst
- B01J 23/755: Nickel
- B01J 2208/00132: Tubes
- B01J 2219/00006: Large-scale industrial plants
- B01J 2219/00265: Preventing flame propagation
- C01B 2203/0233: the reforming step being a steam reforming step
- C01B 2203/0811: by combustion of fuel
- Y02P 20/52: using catalysts, e.g. selective catalysts
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C}
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

In a process for producing synthesis gas by catalytic conversion of hydrocarbons contained in a desulfurized feed gas stream with steam, the mixture of feed gas and steam is preheated by heat exchange at a pressure of 10 to 45 bar to a temperature of 300 to 700° C. and is subsequently heated by heat exchange above a catalyst at a pressure of 10 to 45 bar to a temperature of 650 to 950° C. To minimize the apparatus involved, it is provided that the mixture of feed gas and steam traverses a catalyst bed contained in a reaction tank, and the catalyst bed is heated by thermal radiation and convection.

## Claims

### Claim 1

An apparatus for performing the method for producing gas containing H2 and CO by catalytic conversion of hydrocarbons contained in a feed gas stream with steam, in that the feed gas heated to 300 to 400° C. and subsequently desulfurized is mixed with steam, the mixture of feed gas and steam is preheated by heat exchange at a pressure of 10 to 45 bar to a temperature of 300 to 700° C., and is subsequently heated over a catalyst by heat exchange at a pressure of 10 to 45 bar to a temperature of 650 to 950° C., wherein a catalyst bed contained in a vertical reaction tank is traversed by the mixture of feed gas and steam and is indirectly heated by thermal radiation and convection, wherein the vertical reaction tank includes a tube bundle comprising axially parallel, internally heatable radiant tubes closed at the bottom, in each radiant tube a flame tube concentrically is inserted by forming an annular space, said flame tube comprising apertures located in a middle section of the flame tube, and in each flame tube a gas lance concentrically is inserted by forming an annular space, and a reaction space to be traversed by the mixture of feed gas and steam is filled with a catalyst bed around the radiant tubes, wherein the reaction space of the reaction tank is filled with a catalyst bed up to a height of 30 to 75% of the overall height of the tube bundle.

### Claim 2 (depends on 1)

The apparatus according to claim 1 wherein the reaction space of the reaction tank located above the catalyst bed is provided as a preheating space for the mixture of feed gas and steam.

### Claim 3 (depends on 1)

The apparatus according to claim 1 wherein the reaction space of the reaction tank is filled with a catalyst bed up to a height of 40 to 60% of the overall height of the tube bundle.