EP1505250A1 - Utilisation d'une turbine diphasique dans un procédé d'hydrotraitement - Google Patents
Utilisation d'une turbine diphasique dans un procédé d'hydrotraitement Download PDFInfo
- Publication number
- EP1505250A1 EP1505250A1 EP04291934A EP04291934A EP1505250A1 EP 1505250 A1 EP1505250 A1 EP 1505250A1 EP 04291934 A EP04291934 A EP 04291934A EP 04291934 A EP04291934 A EP 04291934A EP 1505250 A1 EP1505250 A1 EP 1505250A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- turbine
- fluid
- monophasic
- expanded
- process according
- 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
- 238000000034 method Methods 0.000 title claims description 28
- 239000012530 fluid Substances 0.000 claims description 44
- 239000007788 liquid Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 abstract description 16
- 238000006243 chemical reaction Methods 0.000 abstract description 13
- 229930195733 hydrocarbon Natural products 0.000 abstract description 8
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 8
- 239000001257 hydrogen Substances 0.000 abstract description 6
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 6
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- 239000012071 phase Substances 0.000 description 15
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 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
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D31/00—Pumping liquids and elastic fluids at the same time
-
- 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
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
-
- 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
- C10G47/00—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions
Definitions
- the invention relates to the field of hydrotreatment processes. It proposes to use a two-phase turbine in a process hydrotreating.
- hydrotreatment processes are in particular implemented by the oil industry for the treatment of petroleum effluents in association with hydrogen.
- hydrocracking involves converting heavy hydrocarbons as light hydrocarbons and hydrorefining mainly to remove the impurities sulfur, nitrogen and / or metals, contained in a hydrocarbon feed.
- a hydrotreatment process comprises catalytic reactors, processing units and balloons. Following the function of the balloons in the process, they can be at high pressure (about 10 MPa), at low pressure (between about 0.5 and 1 MPa), at elevated temperature (between about 250 ° C and 300 ° C) or at low temperature (about 50 ° C).
- the conduits for connecting a high pressure balloon to a low balloon pressure are equipped with an expansion valve. The expansion valve allows reduce the pressure of the fluid transferred through the ducts. The relaxation is performed at constant enthalpy and without energy recovery.
- the invention proposes to recover the relaxation energy in the processes hydrotreating.
- the two-phase turbine may be a turbine rotodynamic.
- the monophasic turbine and the two-phase turbine may constitute a single machine comprising at least one impeller and at least one distributor of monophasic design and at least one impeller and at less a diphasic design distributor. Hydraulics of monophasic and diphasic design can be mounted on a single tree.
- one of said first, second and third devices may be an expansion valve or a turbine.
- An advantage of the present invention is that it can recover energy in a hydrotreatment process.
- the energy is recovered during the expansion of a fluid through a turbine.
- the turbine shaft can be coupled to the shaft of a pump or compressor to compress a fluid.
- the energy recovered on the turbine shaft can also be transformed in electrical energy.
- FIG. 1 schematically shows a hydrotreatment process.
- the charge C comprises hydrocarbons, for example vacuum distillates, diesel fuel from conversion process and / or deasphalted residues.
- This charge C is pumped and sent to reaction section R. From hydrogen It is necessary to carry out the hydrotreatment reactions. Hydrogen H is compressed to also be introduced into the reaction section R.
- the reaction section R may comprise one or more reactors, at high temperature (for example between 350 ° C. and 450 ° C.) and at high pressure (for example between 5 MPa and 20 MPa).
- the effluent from the reaction section R is sent to a separator flask 1 in which the liquid and vapor phases are separated at a much lower temperature than that of the temperature of the reaction section R.
- the vapor phase resulting from the separator 1 is returned using a compressor to the reaction section R to ensure a sufficient hydrogen partial pressure.
- the sentence liquid in the balloon 1 is at the bubble point at a pressure usually between 5 and 20 MPa.
- This liquid phase essentially comprises hydrocarbons: heavy hydrocarbons from the load, hydrocarbons more produced by cracking reactions in reaction section R, from dissolved hydrogen in small quantities, hydrogen sulphide amount from desulfurization reactions in the reaction section R.
- This liquid is discharged from the flask 1 via the duct 2 to the device D, in which it is relaxed before being sent into the low pressure section 6 for fractionation of the reaction products. Stabilized products are discharged through line 24, for example to a storage area.
- Section 6 also makes it possible to obtain combustible gas evacuated via line 21, possibly liquefied petroleum gas discharged via line 22 (propane and butane) and possibly gasoline discharged through the conduit 23. These three latest products usually contain hydrogen sulphide.
- the section 6 is subjected to a pressure of between 0.5 and 1.5 MPa and at low temperature (for example between 20 ° C and 100 ° C).
- the invention aims at improving the recovery of the energy generated by the expansion performed in the device D.
- the separator balloon 1 and the low pressure section 6 constitute elements of an installation for implementing a hydrotreatment process as described in FIG. 1.
- the other elements of the installation are not not represented.
- the balloon 1 contains a fluid at high pressure.
- the conduit 2 brings the fluid of the balloon 1 into the monophasic turbine 3.
- the fluid conveyed through the conduit 2 has a liquid volume ratio greater than 95%.
- the fluid is expanded until the volume ratio of the fluid gas reaches 5%. Beyond a gas volume ratio of 5%, a monophasic turbine can no longer be used without risk of deterioration.
- the fluid obtained after expansion in the turbine 3 is fed into the two-phase turbine 4 where it is expanded to the pressure prevailing in the low pressure section 6.
- the conduit 5 brings the fluid from the turbine 4 to section 6 .
- a monophasic turbine designates a turbine designed to relax a fluid having a gas volume ratio less than 5%.
- the monophasic turbine 3 may be a turbine of the type rotodynamic, for example a machine equipped with distributors and of impellers constituting hydraulic Francis-type, or a turbine of volumetric type.
- a monophasic turbine for example a multi-stage turbine, ie with several pairs of distributors and impellers
- the expanded fluid must have a gas volume ratio less than 5%. If the fluid is relaxed to contain more than 5% volume of gas, on the one hand the monophasic turbine may be deteriorated and on the other hand the efficiency of the monophasic turbine drops so dramatic.
- a single-phase turbine has a greater than 50%.
- a two-phase turbine designates a turbine designed to relax a fluid having a gas volume ratio greater than 5%.
- the two-phase turbine 4 may be a turbine of the type rotodynamic comprising impellers and distributors, for example a machine as described by one of the following patents: FR 2 333 139, FR 2 471 501 and FR 2 665 224.
- a two-phase turbine has a yield higher than 50% without risk of deterioration of the turbine.
- FIGS. 3 and 4 which are identical to reference numerals in Figure 2 denote identical elements.
- the variant of the process according to the invention represented by FIG. proposes to unite monophasic and diphasic turbines into a single turbine 7.
- the turbine 7 is a rotodynamic machine comprising monophasic design impellers and distributors and impellers and distributors of two-phase design output. All impellers and distributors are contained in the same housing. The monophasic and diphasic impellers can be mounted on the same tree.
- the fluid to be released from the balloon 1 is introduced into the turbine 7 by the duct 2.
- the fluid acts first on impellers and distributors of monophasic design until reaching a rate gas volume of 5%, then on impellers and distributors of two-phase design until the pressure of section 6 is reached. of the turbine 7, the fluid is brought into section 6 via the pipe 5.
- the process shown diagrammatically in FIG. 4 proposes to relax a fluid coming from the high pressure flask 1 in a turbine 8, the expanded fluid being introduced into the low pressure section 6.
- the turbine 8 may consist either of the succession (as described in FIG. 2) of a single-phase turbine and then of a two-phase turbine, or of a single machine (as described with reference to FIG. 3) having impellers and distributors constituting single-phase and two-phase hydraulics.
- a first valve 9 is arranged in parallel with the turbine 8.
- a second valve 10 is arranged in series with the turbine 8. The second valve 10 may be arranged upstream or downstream of the turbine 8.
- the valve 10 is used to reduce the expansion on the turbine 8 in the case of a very strong expansion, that is to say in the case of a significant value of the difference between the pressure of the balloon 1 and that of the section. 6.
- the turbine 8 performs an expansion of the high pressure fluid to an intermediate pressure, then the valve 10 performs an expansion of the intermediate pressure fluid until the low pressure prevailing in section 6.
- the intermediate pressure has a value included between the high pressure prevailing in balloon 1 and the low pressure prevailing in section 6.
- the valve 9 is used to reduce the flow rate of the fluid flowing through the turbine 8. Part of the fluid from the balloon 1 is expanded by the valve 9, the other part of the fluid from the balloon 1 being expanded by the turbine 8.
- the valves 9 and 10 can be replaced by turbines.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Description
- la figure 1 représente schématiquement un procédé d'hydrotraitement,
- la figure 2 représente schématiquement le procédé selon l'invention,
- les figures 3 et 4 représentent des variantes du procédé selon l'invention.
Le ballon 1 contient un fluide à haute pression. Le conduit 2 amène le fluide du ballon 1 dans la turbine monophasique 3. Le fluide convoyé par le conduit 2 comporte un taux volumique de liquide supérieur à 95 %. Dans la turbine 3, le fluide est détendu jusqu'à ce que le taux volumique de gaz du fluide atteigne 5 %. Au-delà d'un taux volumique de gaz de 5 % une turbine monophasique ne peut plus être utilisée sans risque de détérioration. Le fluide obtenu après détente dans la turbine 3 est amené dans la turbine diphasique 4 où il est détendu jusqu'à la pression régnant dans la section basse pression 6. Le conduit 5 amène le fluide issu de la turbine 4 jusqu'à la section 6.
La vanne 10 est utilisée pour diminuer la détente sur la turbine 8 dans le cas d'une très forte détente, c'est à dire dans le cas d'une valeur importante de la différence entre la pression du ballon 1 et celle de la section 6. La turbine 8 effectue une détente du fluide haute pression jusqu'à une pression intermédiaire, puis la vanne 10 effectue une détente du fluide à pression intermédiaire jusqu'à la basse pression régnant dans la section 6. La pression intermédiaire a une valeur comprise entre la haute pression régnant dans ballon 1 et la basse pression régnant dans la section 6.
La vanne 9 est utilisée pour réduire le débit du fluide circulant à travers la turbine 8. Une partie du fluide issu du ballon 1 est détendue par la vanne 9, l'autre partie du fluide issu du ballon 1 étant détendue par la turbine 8.
Les vannes 9 et 10 peuvent être remplacées par des turbines.
Claims (9)
- Procédé d'hydrotraitement comportant les étapes suivantes:a) on détend un fluide ayant un taux volumique de liquide égal ou supérieur à 95 % et ayant une pression P1 à travers une turbine monophasique pour obtenir un fluide ayant un taux volumique de gaz inférieur ou égal à 5 % et ayant une pression P2,b) on détend ledit fluide ayant un taux volumique de gaz inférieur ou égal à 5 % et ayant une pression P2 à travers une turbine diphasique pour obtenir un fluide ayant une pression P3.
- Procédé d'hydrotraitement selon la revendication 1, dans lequel la turbine diphasique est une turbine rotodynamique.
- Procédé d'hydrotraitement selon la revendication 2, dans lequel la turbine monophasique et la turbine diphasique constituent une machine unique comportant au moins un impulseur et au moins un distributeur de conception monophasique et au moins un impulseur et au moins un distributeur de conception diphasique.
- Procédé d'hydrotraitement selon la revendication 3, dans lequel lesdites hydrauliques de conception monophasique et diphasique sont montées sur un même arbre.
- Procédé d'hydrotraitement selon l'une des revendications précédentes, comportant les étapes:c) avant l'étape a), on prélève une partie dudit fluide haute pression,d) on détend ladite partie dudit fluide haute pression au moyen d'un premier dispositif.
- Procédé d'hydrotraitement selon l'une des revendications précédentes, comportant l'étape suivante:e) avant l'étape a), on détend ledit fluide haute pression au moyen d'un deuxième dispositif.
- Procédé d'hydrotraitement selon l'une des revendications précédentes, comportant l'étape suivante:f) Après l'étape b), on détend ledit fluide basse pression au moyen d'un troisième dispositif.
- Procédé d'hydrotraitement selon l'une des revendications 5 à 7, dans lequel l'un desdits premier, deuxième et troisième dispositifs est une vanne de détente.
- Procédé d'hydrotraitement selon l'une des revendications 5 à 7, dans lequel l'un desdits premier, deuxième et troisième dispositifs est une turbine.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0309620 | 2003-08-04 | ||
FR0309620A FR2858668B1 (fr) | 2003-08-04 | 2003-08-04 | Utilisation d'une turbine diphasique dans un procede d'hydrotraitement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1505250A1 true EP1505250A1 (fr) | 2005-02-09 |
EP1505250B1 EP1505250B1 (fr) | 2010-10-06 |
Family
ID=33548299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04291934A Expired - Lifetime EP1505250B1 (fr) | 2003-08-04 | 2004-07-28 | Utilisation d'une turbine diphasique dans un procédé d'hydrotraitement |
Country Status (5)
Country | Link |
---|---|
US (1) | US7384541B2 (fr) |
EP (1) | EP1505250B1 (fr) |
JP (1) | JP2005054800A (fr) |
DE (1) | DE602004029424D1 (fr) |
FR (1) | FR2858668B1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7935178B2 (en) * | 2008-03-26 | 2011-05-03 | Uop Llc | Use of a biphasic turbine in a process for recovering energy in gasification and natural gas applications |
WO2011038027A1 (fr) * | 2009-09-22 | 2011-03-31 | Neo-Petro, Llc | Système de synthèse d'hydrocarbures |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2333139A1 (fr) * | 1975-11-27 | 1977-06-24 | Inst Francais Du Petrole | Dispositif perfectionne pour le pompage des fluides |
FR2665224A1 (fr) * | 1990-07-27 | 1992-01-31 | Inst Francais Du Petrole | Dispositif de pompage ou de compression polyphasique et son utilisation. |
GB2346936A (en) * | 1999-02-09 | 2000-08-23 | Kvaerner Oil & Gas As | Recovering energy from wellstreams |
EP1041243A2 (fr) * | 1999-03-29 | 2000-10-04 | Atlantic Richfield Company | Séparateur gaz-liquides de fond de puits avec compression de gaz |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5515694A (en) * | 1995-01-30 | 1996-05-14 | Carrier Corporation | Subcooler level control for a turbine expansion refrigeration cycle |
FR2803596B1 (fr) * | 2000-01-11 | 2003-01-17 | Inst Francais Du Petrole | Procede de conversion de fractions petrolieres comprenant une etape d'hydroconversion lit bouillonnant, une etape de separation, une etape d'hydrodesulfuration et une etape de craquage |
-
2003
- 2003-08-04 FR FR0309620A patent/FR2858668B1/fr not_active Expired - Fee Related
-
2004
- 2004-07-28 EP EP04291934A patent/EP1505250B1/fr not_active Expired - Lifetime
- 2004-07-28 DE DE602004029424T patent/DE602004029424D1/de not_active Expired - Lifetime
- 2004-08-03 US US10/909,430 patent/US7384541B2/en not_active Expired - Fee Related
- 2004-08-04 JP JP2004227752A patent/JP2005054800A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2333139A1 (fr) * | 1975-11-27 | 1977-06-24 | Inst Francais Du Petrole | Dispositif perfectionne pour le pompage des fluides |
FR2665224A1 (fr) * | 1990-07-27 | 1992-01-31 | Inst Francais Du Petrole | Dispositif de pompage ou de compression polyphasique et son utilisation. |
GB2346936A (en) * | 1999-02-09 | 2000-08-23 | Kvaerner Oil & Gas As | Recovering energy from wellstreams |
EP1041243A2 (fr) * | 1999-03-29 | 2000-10-04 | Atlantic Richfield Company | Séparateur gaz-liquides de fond de puits avec compression de gaz |
Also Published As
Publication number | Publication date |
---|---|
EP1505250B1 (fr) | 2010-10-06 |
FR2858668A1 (fr) | 2005-02-11 |
JP2005054800A (ja) | 2005-03-03 |
FR2858668B1 (fr) | 2005-09-23 |
US7384541B2 (en) | 2008-06-10 |
US20050029165A1 (en) | 2005-02-10 |
DE602004029424D1 (de) | 2010-11-18 |
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