EP1318187A1 - Vorrichtung zum Spalten von vorwiegend gesättigten Kohlenwasserstoffen - Google Patents
Vorrichtung zum Spalten von vorwiegend gesättigten Kohlenwasserstoffen Download PDFInfo
- Publication number
- EP1318187A1 EP1318187A1 EP02450269A EP02450269A EP1318187A1 EP 1318187 A1 EP1318187 A1 EP 1318187A1 EP 02450269 A EP02450269 A EP 02450269A EP 02450269 A EP02450269 A EP 02450269A EP 1318187 A1 EP1318187 A1 EP 1318187A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- hydrocarbons
- line
- cooler
- predominantly
- 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.)
- Granted
Links
- 238000005336 cracking Methods 0.000 title claims abstract description 21
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 16
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 15
- 239000004215 Carbon black (E152) Substances 0.000 title 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 claims abstract description 33
- 239000011541 reaction mixture Substances 0.000 claims abstract description 21
- 239000003054 catalyst Substances 0.000 claims abstract description 16
- 229930195734 saturated hydrocarbon Natural products 0.000 claims abstract description 12
- 238000010791 quenching Methods 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 claims description 18
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000006356 dehydrogenation reaction Methods 0.000 claims description 2
- 238000007323 disproportionation reaction Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 13
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000003776 cleavage reaction Methods 0.000 abstract 2
- 230000007017 scission Effects 0.000 abstract 2
- 230000009466 transformation Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 9
- 239000002918 waste heat Substances 0.000 description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 6
- 239000005977 Ethylene Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 5
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 230000004992 fission Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G9/002—Cooling of cracked gases
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G51/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more cracking processes only
- C10G51/06—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more cracking processes only plural parallel stages only
Definitions
- the invention has a device for splitting predominantly saturated hydrocarbons with one reactor, especially cracking furnace.
- a method has also become known in which Unsaturated carbons evaporate and together with Steam can be fed to an oven in which the mixture 500 ° C is heated, then with a slightly above atmospheric pressure lie pressure, z. B. 2 bar, a reactor with a catalyst, u. between a zeolite catalyst. Approximately 45% by weight of the unsaturated hydrocarbons are in propylene converted, balance ethylene, propane and ethane.
- Such System is particularly complex in terms of equipment and also has additional features a particularly large space requirement.
- the present invention aims to provide a To create a device that allows using an insert unsaturated hydrocarbons with four to eight carbon atoms to get a high yield of propylene and one has little equipment, and it allows with the direct and / or indirect waste heat from a cracking plant for primarily saturated hydrocarbons to the energy requirement cover.
- the heat exchanger has a catalyst to split and / or disproportionation and / or dehydrogenation of the hydrocarbons the predominantly unsaturated hydrocarbons on, a particularly simple configuration is given, since none additional reactor is required.
- a heat exchanger can be, for example, a tubular heat exchanger which the catalyst is not in the tubes, but around the same is arranged.
- the heat exchanger which is free of catalysts is, via a line for the predominantly unsaturated hydrocarbons connected to another reactor with catalyst, so the regeneration of the catalyst can be done at intervals of a few months due to coke deposition is carried out particularly quickly and effectively, the device of the cracking furnace can also be used.
- the supply line for the predominantly unsaturated occurs Hydrocarbons in the heat exchanger and / or others Reactor from another heat exchanger, which is a feeder Derivation for a reaction mixture according to the predominantly has unsaturated hydrocarbons, can also Waste heat recovery after the endothermic conversion of the unsaturated Hydrocarbons.
- an insert with 65 wt .-% paraffins, 25 wt .-%, naphthenes and 10.0 wt .-% aromatics comes through the feed line 1 at a temperature of 60 ° C and a pressure of 6 bar in the reactor 2, which is designed as a cracking furnace.
- the mixture is heated up to 760 ° C to 900 ° C.
- steam is introduced into the reactor 2 via its own feed line 3 at a temperature of 210 ° C. and a pressure of 5 bar.
- the weight ratio of insert to steam is 2: 1.
- the reaction mixture emerging from the reactor 2 reaches the cooler 5 via the discharge line 4 at a temperature of 830 ° and a pressure of 1.8 bar, and is there at 350 ° C. to 620 ° C cooled.
- the reaction mixture that is to say the cracked gas, reaches the heat exchanger 7 via the line 6 and serves there as a heat transfer fluid.
- the reaction mixture then passes via line 6a into further cooler 8 and is cooled there to 220 ° C.
- the further cooler 8 is a direct cooler and the oil for direct cooling is circulated through the separation system, not shown, and is used to preheat the further use of predominantly unsaturated hydrocarbons supplied via line 22 into the indirectly acting heat exchanger 10, in which the oil is passed through the Line 8a is supplied, u. with the following composition: 70 Wt .-% butenes 30 Wt .-% C 4 paraffins 100% by weight of the further use are passed together with 100% by weight to 200% by weight of steam via line 23 to the further heat exchanger 11, in which the product mixture from the further use after the reactor 7 transfers the heat to the others Submits.
- the predominantly unsaturated hydrocarbon mixture is reacted in an endothermic reaction and fed to the further heat exchanger 11 via the discharge line 26 and then cooled.
- the light hydrocarbons are fed to another separation plant at a suitable point.
- the heavy remainder is fed to the cracking furnace.
- Fig. 2 with isothermal reactor essentially corresponds to that of FIG. 1, a Liebig heat exchanger 21 being used instead of the heat exchanger 7 is shown, the greater flow resistance for the Has fission gas and therefore via an ejector 19 with steam is operated, must be suctioned off.
- the vapor / reaction product mixture then passes through line 25 and line 9 into the separation plant.
- the system shown schematically in Fig. 3 with The adiabatic reactor essentially corresponds to the plant 1, but a separate further reactor 20 is provided, in which the catalyst is arranged.
- the other Reactor 20 is downstream of heat exchanger 7 connected in series via line 29.
- a regeneration of the Catalyst can be used with such a system, since a small Resistance to interference is easier to carry out.
- line 23 becomes steam and line 22 becomes unsaturated Hydrocarbons fed to the further heat exchanger 11.
- a heat exchanger 28 u. between in the low temperature zone, of the cracking furnace 2 arranged.
- the low temperature zone there is a maximum temperature of 600 ° C, with what temperature the mixture of predominantly unsaturated Hydrocarbons via line 29 in the further reactor 20 arrives.
- the mixture from predominantly unsaturated hydrocarbons via the Line 12 is fed to the heat exchanger 7 and then enters the heat exchanger 28, which is in the lower temperature zone of the Slit furnace is arranged and is then via line 29 with a temperature of 500 ° C introduced into the further reactor 20.
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
- Fig. 1
- und 2 zeigen in schematischer Darstellung isotherme Reaktoren,
- Fig. 3
- in schematischer Darstellung einen adiabatischen Reaktor,
- Fig. 4
- eine Ausführungsform mit Vielzahl von Kühlern,
- Fig. 5
- eine Vorrichtung mit einem zusätzlichen Wärme-tauscher im Spaltofen und
- Fig. 6
- eine weitere Ausführungsform mit einer zweifachen Erhitzung.
| 1 | Gew.-% | Wasserstoff |
| 15 | Gew.-% | Methan |
| 25 | Gew.-% | Ethylen |
| 17 | Gew.-% | Butene |
| 0,5 | Gew.-% | Azethylen |
| 3 | Gew.-% | Butan |
| 70 | Gew.-% | Butene |
| 30 | Gew.-% | C4 Paraffine |
| 32 | Gew.-% | Propylen |
| 7 | Gew.-% | Ethylen |
| 31 | Gew.-% | Butene |
| 30 | Gew.-% | C4 Paraffine |
Claims (7)
- Vorrichtung zum Spalten von vorwiegend gesättigten Kohlenwasserstoffen mit einem Reaktor, insbesondere Spaltofen (2), zum Erhitzen und Spalten mit einer Zuleitung (1, 3) für die Kohlenwasserstoffe und Dampf sowie einer Ableitung (4) für ein Reaktionsgemisch, die in einem Kühler, insbesondere Quenchkühler (5), mündet und einer Trennanlage für das Reaktionsgemisch, dadurch gekennzeichnet, daß eine Zuleitung (12, 30) für vorwiegend ungesättigte Kohlenwasserstoffe mit vier bis acht Kohlenstoffatomen, insbesondere vier bis fünf Kohlenstoffatomen, in einen Wärmetauscher (28) im Niedertemperaturteil, insbesondere mit 500°C bis 750°C, des Spaltofens (2) und/oder einen Wärmetauscher (7, 21) mündet, in welchem eine Leitung (6) für das Reaktionsgemisch nach den vorwiegend gesättigten Kohlenwasserstoffen als Wärmeträger aus dem Kühler (5) mündet und für das Reaktionsgemisch nach den vorwiegend gesättigten Kohlenwasserstoffen eine weitere Leitung (6, 6a), gegebenenfalls aus dem Kühler (5), in einem weiteren Kühler, insbesondere Quenchkühler (8), mündet und gegebenenfalls eine Leitung (29) für die erhitzten, vorwiegend ungesättigten, Kohlenwasserstoffe in einen weiteren Reaktor (20) mit Katalysator mündet und eine Trennanlage für ein Reaktionsgemisch nach den vorwiegend ungesättigten Kohlenwasserstoffen vorgesehen ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Wärmetauscher (7) einen Katalysator zum Spalten und/oder Disproportionieren und/oder Dehydrieren der Kohlenwasserstoffe der vorwiegend ungesättigten Kohlenwasserstoffe aufweist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Wärmetauscher (7) frei von Katalysatoren ist und über eine Zuleitung (29) für die vorwiegend ungesättigten Kohlenwasserstoffe mit einem weiteren Reaktor (20) mit Katalysator verbunden ist.
- Vorrichtung nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß die Zuleitung (12) für die vorwiegend ungesättigten Kohlenwasserstoffe in den Wärmetauscher (7, 21) aus einem weiteren Wärmetauscher (11) austritt, welcher eine Zuund Ableitung für ein Reaktionsgemisch nach den vorwiegend ungesättigten Kohlenwasserstoffen aufweist.
- Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der weitere Wärmetauscher (11) mit einem zusätzlichen Wärmetauscher (10) über eine Leitung (22) für die vorwiegend ungesättigten Kohlenwasserstoffe verbunden ist, welcher seinerseits mit einer Wärmeträgerleitung aus dem weiteren Kühler (8) verbunden ist.
- Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß eine Leitung (22) für Wasserdampf, gegebenenfalls gemeinsam mit den vorwiegend ungesättigten Kohlenwasserstoffen, in den weiteren Wärmetauscher (11) mündet.
- Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß für das Reaktionsgemisch nach den vorwiegend ungesättigten Kohlenwasserstoffen eine zusätzliche Trennanlage vorgesehen ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT19122001 | 2001-12-06 | ||
| AT0191201A AT411256B (de) | 2001-12-06 | 2001-12-06 | Vorrichtung zum spalten von vorwiegend gesättigten kohlenwasserstoffen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1318187A1 true EP1318187A1 (de) | 2003-06-11 |
| EP1318187B1 EP1318187B1 (de) | 2007-07-25 |
Family
ID=3689301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02450269A Expired - Lifetime EP1318187B1 (de) | 2001-12-06 | 2002-11-27 | Vorrichtung zum Spalten von vorwiegend gesättigten Kohlenwasserstoffen |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1318187B1 (de) |
| AT (2) | AT411256B (de) |
| DE (1) | DE50210545D1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009009965A1 (en) | 2007-07-19 | 2009-01-22 | China Petroleum & Chemical Corporation | Method for processing olefins |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1593019A1 (de) * | 1966-05-17 | 1970-04-23 | Metallgesellschaft Ag | Verfahren zur thermischen Spaltung von Kohlenwasserstoffen |
| GB1293260A (en) * | 1969-10-29 | 1972-10-18 | Jefferson Chem Co Inc | Hydrocarbon cracking process |
| US4361478A (en) * | 1978-12-14 | 1982-11-30 | Linde Aktiengesellschaft | Method of preheating hydrocarbons for thermal cracking |
| US4492624A (en) * | 1982-09-30 | 1985-01-08 | Stone & Webster Engineering Corp. | Duocracking process for the production of olefins from both heavy and light hydrocarbons |
| US5190634A (en) * | 1988-12-02 | 1993-03-02 | Lummus Crest Inc. | Inhibition of coke formation during vaporization of heavy hydrocarbons |
| FR2760468A1 (fr) * | 1997-03-05 | 1998-09-11 | Procedes Petroliers Petrochim | Four tubulaire de vapocraquage d'hydrocarbures a double echangeur de trempe |
| US5981819A (en) * | 1996-11-26 | 1999-11-09 | Metallgesellschaft Aktiengesellschaft | Process of generating C3 - and C4 -olefins from a feed mixture containing C4 to C7 olefins |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5399500A (en) * | 1999-06-03 | 2000-12-28 | Shell Internationale Research Maatschappij B.V. | Propene recovery |
-
2001
- 2001-12-06 AT AT0191201A patent/AT411256B/de not_active IP Right Cessation
-
2002
- 2002-11-27 AT AT02450269T patent/ATE368092T1/de not_active IP Right Cessation
- 2002-11-27 EP EP02450269A patent/EP1318187B1/de not_active Expired - Lifetime
- 2002-11-27 DE DE50210545T patent/DE50210545D1/de not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1593019A1 (de) * | 1966-05-17 | 1970-04-23 | Metallgesellschaft Ag | Verfahren zur thermischen Spaltung von Kohlenwasserstoffen |
| GB1293260A (en) * | 1969-10-29 | 1972-10-18 | Jefferson Chem Co Inc | Hydrocarbon cracking process |
| US4361478A (en) * | 1978-12-14 | 1982-11-30 | Linde Aktiengesellschaft | Method of preheating hydrocarbons for thermal cracking |
| US4492624A (en) * | 1982-09-30 | 1985-01-08 | Stone & Webster Engineering Corp. | Duocracking process for the production of olefins from both heavy and light hydrocarbons |
| US5190634A (en) * | 1988-12-02 | 1993-03-02 | Lummus Crest Inc. | Inhibition of coke formation during vaporization of heavy hydrocarbons |
| US5981819A (en) * | 1996-11-26 | 1999-11-09 | Metallgesellschaft Aktiengesellschaft | Process of generating C3 - and C4 -olefins from a feed mixture containing C4 to C7 olefins |
| FR2760468A1 (fr) * | 1997-03-05 | 1998-09-11 | Procedes Petroliers Petrochim | Four tubulaire de vapocraquage d'hydrocarbures a double echangeur de trempe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009009965A1 (en) | 2007-07-19 | 2009-01-22 | China Petroleum & Chemical Corporation | Method for processing olefins |
| US9024100B2 (en) | 2007-07-19 | 2015-05-05 | China Petroleum & Chemical Corporation | Process for producing olefins |
Also Published As
| Publication number | Publication date |
|---|---|
| ATA19122001A (de) | 2003-04-15 |
| EP1318187B1 (de) | 2007-07-25 |
| AT411256B (de) | 2003-11-25 |
| ATE368092T1 (de) | 2007-08-15 |
| DE50210545D1 (de) | 2007-09-06 |
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