EP0515446A1 - Verfahren zur erzeugung von kohlenmonoxid - Google Patents
Verfahren zur erzeugung von kohlenmonoxidInfo
- Publication number
- EP0515446A1 EP0515446A1 EP91903849A EP91903849A EP0515446A1 EP 0515446 A1 EP0515446 A1 EP 0515446A1 EP 91903849 A EP91903849 A EP 91903849A EP 91903849 A EP91903849 A EP 91903849A EP 0515446 A1 EP0515446 A1 EP 0515446A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- reforming stage
- carbon dioxide
- reforming
- fed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910002091 carbon monoxide Inorganic materials 0.000 title claims abstract description 12
- 239000007789 gas Substances 0.000 claims abstract description 55
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000002407 reforming Methods 0.000 claims abstract description 35
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 21
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 21
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000001257 hydrogen Substances 0.000 claims abstract description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 239000003054 catalyst Substances 0.000 claims abstract description 6
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 5
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 239000001301 oxygen Substances 0.000 claims abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 4
- 238000002453 autothermal reforming Methods 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
- C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
- C01B3/382—Multi-step processes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/40—Carbon monoxide
Definitions
- the invention relates to a process for the production of carbon monoxide, in which a mixture of hydrocarbon, preferably methane, and carbon dioxide is fed in the presence of a catalyst with the supply of heat to at least one reforming stage and carbon dioxide and hydrogen are separated from the reformed starting gas mixture.
- the reforming stage consists of a radiation reformer to which combustion air and fuel are fed for heating.
- the carbon dioxide content from the exhaust gases from the reformer heating is recovered for the reforming process, as is the residual carbon dioxide content remaining in the product gas.
- the nitrogen content from the exhaust gases is removed as a by-product.
- Heat is removed from the reforming process at various points by coolers.
- This object is achieved in that the gas mixture is fed to a convectively heated first reforming stage, the starting gas of the first reforming stage is fed together with oxygen to an autothermal second reforming stage, and the starting gas of the second reforming stage is fed to the convectively heated reforming stage as heating gas.
- the heat generated in the autothermal reforming stage is used for the process itself, since it is used to heat the first reforming stage via the heating gas.
- Convectionally heated reforming stages are known per se. They preferably have a large number of canned tubes with an outer tube flushed with a heating gas and an inner tube serving for gas recirculation, the space between the outer tube and inner tube being filled with a catalyst (cf., for example, the applicant's prospectus: "Plant and Apparatus construction - components and circuits! "(1986) page 31).
- Autothermal reformers which are often used as secondary reformers, are also known per se.
- NH3 synthesis z. B first subjected to a steam refor ier process the feed gas in a primary reformer.
- the starting gas from the primary reformer with a relatively high residual methane content is then mixed with air in an autothermal reformer serving as a secondary reformer via a mixing device (burner) and then passed over a bed of catalyst.
- the secondary reform stage serves to introduce nitrogen into the synthesis gas (see DE-Z. "Chemiker-Zeitung” (1972) page 141, right column).
- the second reforming stage is additionally supplied with carbon dioxide.
- the heat content of the gases emerging from the convectively heated reforming stage is still sufficiently large, it is expedient to preheat at least one of the feed gases and / or at least one of the return gases by heat exchange with the starting gas of the second reforming stage, i.e. H. also to integrate the remaining waste heat in the process for the production of carbon monoxide un as in the known process management in external processes, for. B. for steam generation.
- a mixture of essentially methane (CH *) and carbon dioxide (CO2) is fed via line 1, in which a heat exchanger 2 is arranged, to a convectively heated reformer 3.
- the preheated gas mixture flows through a can filled with a catalyst.
- the starting gas of the reformer 3 with high proportions of carbon monoxide, carbon dioxide, water vapor and hydrogen, and a residual methane content is fed via line 4 to an autothermal reformer 5.
- the autothermal reformer 5 we Via a line 7 oxygen (O2) supplied.
- the output gas of the reformer 3 supplied via line 4 is further reformed here in an autothermal process in order to substantially reduce the residual methane content.
- the starting gas of the autothermal reformer 5 is fed via a line 8 as the heating gas to the convectively heated reformer 3, in which it flows around the can from the outside.
- the output gas of the reformer 3 is fed via a line 9, in which the heat exchanger 2 and a further heat exchanger 6 are arranged, to a water vapor separator 10, from which the separated water is drawn off via a line 11.
- the synthesis gas which now consists of a mixture of carbon monoxide, carbon dioxide and hydrogen and possibly a very small proportion of residual methane, is then fed via line 12 to a carbon dioxide scrubber 13.
- the washed-out carbon dioxide is returned to line 1 as a return gas via a line 14 and / or is fed to line 4 and thus to the autothermal reformer 5 via a line 15 led via the heat exchanger 6.
- the gas freed from carbon dioxide is fed via line 16 to a hydrogen separator 17; the gas freed from hydrogen is withdrawn as product gas via line 18.
- the separated hydrogen can be fed via lines 19 and 20 to the reformers 3 and 5 as recycle gas.
- the heat exchanger 21 shown in dashed lines in the figure is intended to show that preheating of the recycled hydrogen by the starting gas of the first reforming stage could also be considered if necessary.
- gas cleaning stages 10, 13 and 17 are used to set an im essential carbon monoxide-containing product gas with desired proportions of water vapor, carbon dioxide and hydrogen is possible; if necessary, methane can also be fed via a line 22 to the autothermal reformer 5, which is preheated together with the carbon dioxide in the heat exchanger 6.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Hydrogen, Water And Hydrids (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4004869A DE4004869C1 (enrdf_load_stackoverflow) | 1990-02-16 | 1990-02-16 | |
| DE4004869 | 1990-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0515446A1 true EP0515446A1 (de) | 1992-12-02 |
Family
ID=6400314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91903849A Ceased EP0515446A1 (de) | 1990-02-16 | 1991-02-14 | Verfahren zur erzeugung von kohlenmonoxid |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0515446A1 (enrdf_load_stackoverflow) |
| DE (1) | DE4004869C1 (enrdf_load_stackoverflow) |
| WO (1) | WO1991012200A1 (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5102645A (en) * | 1990-06-21 | 1992-04-07 | Liquid Carbonic Corporation | Method for manufacture of high purity carbon monoxide |
| GB2592681B (en) * | 2020-03-06 | 2022-06-22 | Reinertsen New Energy As | Hydrogen and/or ammonia production process |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3549335A (en) * | 1965-10-22 | 1970-12-22 | Braun & Co C F | Autothermal reactor |
| US3958951A (en) * | 1974-04-09 | 1976-05-25 | Stone & Webster Engineering Corporation | Convective power reformer equipment and system |
| US4162290A (en) * | 1976-11-19 | 1979-07-24 | Pullman Incorporated | Parallel steam reformers to provide low energy process |
| US4182746A (en) * | 1978-06-16 | 1980-01-08 | Atlantic Richfield Company | Carbon monoxide manufacture |
| DE3501459A1 (de) * | 1985-01-17 | 1986-07-17 | Linde Ag, 6200 Wiesbaden | Verfahren zur erzeugung von h(pfeil abwaerts)2(pfeil abwaerts)/co-synthesegas und co |
| EP0194067B2 (en) * | 1985-03-05 | 1994-05-11 | Imperial Chemical Industries Plc | Steam reforming hydrocarbons |
| GB8514344D0 (en) * | 1985-06-06 | 1985-07-10 | Ici Plc | Catalyst support |
| EP0291857A3 (en) * | 1987-05-18 | 1990-07-18 | Air Products And Chemicals, Inc. | Method of carbon monoxide production |
| US4861351A (en) * | 1987-09-16 | 1989-08-29 | Air Products And Chemicals, Inc. | Production of hydrogen and carbon monoxide |
-
1990
- 1990-02-16 DE DE4004869A patent/DE4004869C1/de not_active Expired - Lifetime
-
1991
- 1991-02-14 EP EP91903849A patent/EP0515446A1/de not_active Ceased
- 1991-02-14 WO PCT/EP1991/000288 patent/WO1991012200A1/de not_active Application Discontinuation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9112200A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4004869C1 (enrdf_load_stackoverflow) | 1991-02-07 |
| WO1991012200A1 (de) | 1991-08-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19920630 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT NL |
|
| 17Q | First examination report despatched |
Effective date: 19930331 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
| 18R | Application refused |
Effective date: 19931115 |