EP3137577A1 - Verfahren und anlage zur gewinnung von rohölprodukten - Google Patents
Verfahren und anlage zur gewinnung von rohölproduktenInfo
- Publication number
- EP3137577A1 EP3137577A1 EP15717936.7A EP15717936A EP3137577A1 EP 3137577 A1 EP3137577 A1 EP 3137577A1 EP 15717936 A EP15717936 A EP 15717936A EP 3137577 A1 EP3137577 A1 EP 3137577A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stream
- crude oil
- quenching
- distillation
- quench
- 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 abstract description 76
- 239000010779 crude oil Substances 0.000 title claims abstract description 64
- 238000010791 quenching Methods 0.000 claims abstract description 95
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 52
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 230000000171 quenching effect Effects 0.000 claims abstract description 42
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 33
- 238000004230 steam cracking Methods 0.000 claims abstract description 31
- 238000005336 cracking Methods 0.000 claims abstract description 21
- 238000004821 distillation Methods 0.000 claims description 58
- 239000003921 oil Substances 0.000 claims description 50
- 238000000926 separation method Methods 0.000 claims description 24
- 238000001704 evaporation Methods 0.000 claims description 15
- 230000008020 evaporation Effects 0.000 claims description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 14
- 125000004432 carbon atom Chemical group C* 0.000 claims description 11
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 5
- 238000007700 distillative separation Methods 0.000 claims description 4
- -1 ethylene, propylene Chemical group 0.000 claims description 4
- 238000004508 fractional distillation Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 3
- 229930195734 saturated hydrocarbon Natural products 0.000 claims description 3
- 150000001491 aromatic compounds Chemical class 0.000 claims 2
- 230000003197 catalytic effect Effects 0.000 claims 2
- 238000009903 catalytic hydrogenation reaction Methods 0.000 claims 1
- 230000008016 vaporization Effects 0.000 abstract description 4
- 238000009834 vaporization Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 47
- 239000000047 product Substances 0.000 description 22
- 150000001875 compounds Chemical class 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000001816 cooling Methods 0.000 description 8
- 238000000197 pyrolysis Methods 0.000 description 8
- 238000005292 vacuum distillation Methods 0.000 description 8
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 238000004517 catalytic hydrocracking Methods 0.000 description 5
- 238000003776 cleavage reaction Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 230000007017 scission Effects 0.000 description 4
- 239000011269 tar Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 230000004992 fission Effects 0.000 description 3
- 238000005194 fractionation Methods 0.000 description 3
- 238000005984 hydrogenation reaction Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- MWWATHDPGQKSAR-UHFFFAOYSA-N propyne Chemical group CC#C MWWATHDPGQKSAR-UHFFFAOYSA-N 0.000 description 1
- 101150025733 pub2 gene Proteins 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 150000003738 xylenes Chemical class 0.000 description 1
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
- C10G55/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by at least one refining process and at least one cracking process
- C10G55/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by at least one refining process and at least one cracking process plural serial stages only
- C10G55/04—Treatment of hydrocarbon oils, in the absence of hydrogen, by at least one refining process and at least one cracking process plural serial stages only including at least one thermal cracking step
-
- 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
-
- 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
- C10G69/00—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process
- C10G69/02—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process plural serial stages only
- C10G69/06—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process plural serial stages only including at least one step of thermal cracking in the absence of hydrogen
-
- 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
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G9/34—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts
- C10G9/36—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts with heated gases or vapours
Definitions
- the invention relates to a method and a plant for the production of
- Crude oil is first desalinated in known refinery processes and after heating a fractional distillation at atmospheric pressure (hereinafter referred to as
- each cracking furnace is therefore a structural unit used for steam cracking in which identical or comparable reaction conditions are present.
- a steam cracking plant may comprise one or more cracking furnaces.
- a fission gas stream is understood here to mean a gaseous stream which is formed from the effluent of one or more cracking furnaces.
- the cracked gas stream also referred to as cracker effluent
- a quench gas cooler for example a linear cooler (transfer line
- the first cooling step i. the cooling of the quenching gas with cooling water, for example in the quench cooler, referred to as quenching.
- quenching the cooling of the quenching gas with cooling water
- the cracked gas is cooled only indirectly and not, as in the second cooling step, with a liquid
- the second cooling step may therefore also be referred to as oil quench for better distinctness.
- the stream formed by combining the cracked gas stream with the liquid stream used for quenching is referred to herein as quench effluent.
- quench effluent stream comprises all of the liquid stream used for quenching and compounds derived from the cracked gas stream which may at most be equivalent
- the mass flow of the quench effluent corresponds to the sum of the mass flow of the liquid stream used for quenching and the mass flow of the cracked gas stream, It is therefore explicitly not the product of a separation or deposition process.
- the Quenchabstrom is immediately after the union of the quenching
- the invention proposes a process for recovering crude oil products in which a gaseous stream is formed by evaporation from a stream of crude oil and the gaseous stream is subjected at least in part to a steam cracking process.
- a split gas flow is generated.
- Corresponding methods are known, for example, from US 2008/0221378 A1 and WO 2010/1 17401 A1.
- one or more cracking furnaces are supplied. If several cracking furnaces are present, they can also be charged with different currents. As is generally known, the charging of the cracking furnaces takes place in each case after the addition of water vapor.
- the resulting cleavage gas stream is at least partially to obtain a
- Quenchabstroms quenched with a liquid hydrocarbon stream proposes to use a fraction of the crude oil stream which remains liquid during the evaporation of the crude oil stream, at least in part to form the liquid hydrocarbon stream used for quenching, wherein the liquid hydrocarbon stream used for quenching is poor or free of components which originate from the Quenchabstrom or a stream formed from the Quenchabstrom were separated. Further, the Quenchabstrom is obtained by quenching with the liquid hydrocarbon Ström at a temperature which lies in a temperature range from 0 to 250 ⁇ lie.
- the liquid hydrocarbon stream used for quenching is not produced by using a
- a quenching cycle of a conventional method for example, a so-called oil column with two sections arranged one above the other is used. The quench oil is given up at the top of the lower section. In a lower portion of the lower portion of the cracked gas stream is fed and sent towards the Quenchöl.
- Fissured gas stream containing heavy compounds are dissolved or suspended in the quench oil and the cleavage gas stream is cooled simultaneously.
- the quench oil with the optionally dissolved or suspended therein compounds is withdrawn from the bottom of the oil column, optionally treated, and returned to the head of the lower portion of the oil column again.
- pyrolysis gasoline is abandoned, which is separated in a downstream water quench and also partially circulated.
- quench oil Due to the frequent contacts with the hot cleavage gas stream, the initially low-viscosity compounds are polymerized and the formation of soot and tar or other tough, high-boiling compounds occurs. The quench oil must therefore be replaced regularly and replaced by fresh
- Quench oil be replaced.
- the aged quench oil is practically worthless.
- the liquid hydrocarbon stream used for quenching is poor in or free of components separated from the quench effluent stream or stream formed from the quench effluent, undergoes little or no aging, because the products contained therein do not recycled compounds only come into contact with the cracked gas stream just once. This one-time contact does not lead to aging reactions and the
- corresponding compounds can be converted into product fractions, which can be used profitably.
- the split gas stream leaves the radiation zone of the cracking furnace (s) at a temperature of typically 750 to 875 ⁇ .
- the splashing gas flow should be for
- Temperature value in a first temperature range is reduced to a temperature value in a second temperature range, wherein the temperature value in the second temperature range is approximately 130 ⁇ lower than the temperature value in the first temperature range.
- the temperature difference between the temperature values is significantly higher.
- a method is known in which a non-vaporized portion of a crude oil stream is used for a pre-quench of a cracked gas stream obtained by steam cracking a vaporized portion of the crude oil stream.
- the pre-quench is made to cleave, but still cleavable components contained in the non-evaporated portion by the heat of the cracked gas stream.
- the addition of the unevaporated fraction to the cracked gas stream in the course of the pre-quenching therefore takes place at a still high temperature of the cracked gas stream.
- the temperature of the quenching gas in the preamble is reduced from a temperature value in a first temperature range to a temperature value in a second temperature range, wherein the temperature value in the second temperature range is at most 1 1 1 ⁇ lower than the
- the temperature value in the second temperature range is at least 649 ⁇ C.
- the quench effluent is obtained at a temperature which is within a temperature range of 0 to 250 ⁇ .
- the temperature may in particular be in a temperature range of 50 to 200 ° C or from 50 to 150 ⁇ , ie at a temperature which is also achieved in a conventional oil column, and which allows a direct further processing of Quenchabstroms.
- the cracked gas stream before it is quenched with the liquid hydrocarbon Ström, for example by means of a linear cooler, already cooled to a temperature 50 to 200 ⁇ , for example, 100 to 150 ° C, above the temperature of Quenchabstr oms and, for example, corresponds to the typical inlet temperatures into an oil column in a conventional process.
- the invention makes it possible in this particularly preferred
- Embodiment to dispense with the use of further quench oil, in particular an oil circuit.
- further quench oil in particular an oil circuit.
- the Quenchabstrom contains a considerable proportion of finely divided oil droplets from the quenching liquid stream and heavy components (oils, tars and the like), it is first freed in conventional vapor cracking process in a so-called oil column of corresponding components. Only downstream of the oil column, a corresponding stream of the known separation stages for recovering the hydrocarbon products from the cracking gas can be supplied.
- the present invention is based on the idea to dispense with a corresponding oil column and the Quenchabstrom example, as in the conventional
- the liquid hydrocarbon stream used for quenching only once for quenching.
- a great advantage of the proposed method is therefore that no oil circuit is required for the quench, in which the oil (ie, the liquid hydrocarbon stream conventionally used for quenching) usually ages very much by chemical reactions, in particular significantly increases in viscosity, and thereby loses value. In the context of the present invention, such aging reactions do not play a role for the reasons explained.
- Another advantage that results from not using an oil circuit is that, for example, the conventionally provided heat recovery from the cracking gas eliminated by consuming heat ashtray in the oil circuit and the heat can be fed via the Quenchabstrom directly another consumer. The heat can be used, for example, for (pre) heating the streams used in the atmospheric distillation. Also in the evaporation of the
- Crude oil remaining liquid fraction can be cooled before use, with its heat can be transferred to other streams.
- At least part of the quench effluent is used to form a separation insert, which is separated by distillation together with another stream of crude oil to obtain distillation effluents.
- This distillative separation is advantageously carried out initially in a distillation column for fractional distillation at atmospheric distillation, as it is also used in a conventional refinery.
- the atmospheric distillation may be followed by a vacuum distillation in a distillation column equipped therefor. All in the distillation
- distillation effluents e.g, atmospheric distillation and / or vacuum distillation streams
- distillation effluents cuts, fractions
- the separation insert may be formed from the quench effluent in any manner, but always contains hydrocarbons having one, two, three, four or more carbon atoms and / or such contained in the quench effluent
- Hydrocarbons for example by hydrogenation or further reactions after quenching formed hydrocarbons. These are, for example, methane, ethane, ethylene, acetylene, propane, propylene and methylacetylene and saturated and unsaturated hydrocarbons having four carbon atoms.
- the mentioned "education" of the separation insert for example, by separating a partial flow, combining with another stream or chemical and / or physical reacting done.
- the separation insert advantageously contains hydrocarbons previously contained in the quench liquid hydrocarbon stream or compounds formed from such hydrocarbons. These are typically hydrocarbons with more than ten or twenty and more
- Hydrocarbon stream are transferred to a corresponding distillation column in which the usual crude oil fractions are recovered.
- the compounds contained in the quench liquid hydrocarbon Ström go according to their boiling point in the respective fractions, for example, the vacuum gas oil or the atmospheric gas oil over. Separate separation of the compounds contained in the liquid hydrocarbon stream used for quenching in the manner of a conventional oil column is therefore not required. Even a water quench is eliminated because pyrolysis gasoline also in the corresponding
- Fractions of crude oil distillation passes, namely the gasoline fractions.
- a separate compression of Quenchabstroms is also not required.
- the method can therefore be realized with significantly lower expenditure on equipment than a method of the prior art, as for example in the US 2009/0050523 A1, and in which only in a conventional manner separated from a cracked gas heavy fractions are fed to a refinery process.
- the process according to the invention is not obvious since the quench oil and pyrolysis benzene circulation used in US 2009/0050523 A1 requires a separation of quench oil and pyrolysis gasoline. It is therefore not possible to transfer corresponding compounds in a quench effluent to a common separation with a second crude oil stream. The same applies with respect to a method such as
- US 2010/03201 19 A1 discloses a method in which a quench effluent is fed to a primary fractionation to obtain different streams.
- US 2010/03201 19 A1 explicitly teaches to prepare a tar stream from the primary fractionation and to use it in a quench oil cycle, the introduction of a second crude oil stream into the primary fractionation is prohibited since this would make it impossible to obtain the tar stream by the additionally fed crude oil components ,
- the present invention proposes in an advantageous
- the oil column conventionally used in a steam cracking process and the distillation column used for atmospheric distillation in a conventional refinery process are functionally combined.
- Products of the steam cracking process, together with corresponding light products from the crude oil stream, can, if present, follow the steps usually followed by the oil column of a steam cracking process for the preparation of the steam column
- Fission gases are subjected.
- a water wash in which the naphtha which may possibly still be contained in a corresponding stream is deposited in liquid form. After washing the water typically remain
- Hydrocarbons having one to four carbon atoms in the gas phase can then be subjected to known separation sequences (Demethanizer First, Deethanizer First, etc., for details, see the cited technical literature).
- Distillation effluents are composed of heavier hydrocarbons, predominantly from the uncleaved crude oil or for quenching
- Recycled streams may be combined and together or separately, optionally together with
- Fresh inserts the same or different cracking furnaces are supplied.
- the already explained, formed in the evaporation of the crude oil stream gaseous stream is used, but it can also be used other, supplied from the plant boundary streams.
- the separation of the fractions provided as recycle streams can be carried out, for example, in the customary separation devices which are provided in the context of the present invention, similar to conventional steam-splitting processes. Separate separation of corresponding light fractions, as conventionally carried out in a refinery, can therefore be dispensed with.
- Such light fractions because they can be supplied to the steam cracking process as recycle streams, need not be stored in tanks as in conventional refinery plants.
- the compounds contained in corresponding streams can also be at least partially further implemented. Overall, the result of the inventive measures the advantage that can be dispensed with an oil column, and that no pyrolysis oil and no
- the process according to the invention can also be configured by recycling all distillation effluents which are not desired as products such that they are no longer used for the production of typical refinery products such as gasoline, diesel, heating oil, etc.
- the said components may be used, for example after appropriate treatment such as hydrotreats or (mild) hydrocracking, together or separately, as an insert for the steam cracking process.
- appropriate treatment such as hydrotreats or (mild) hydrocracking
- ethylene, propylene, butadiene, aromatics and high-pressure steam or electricity can be obtained from the crude oil used.
- This variant proves to be extremely economical.
- the method according to the invention can be flexibly adapted to the respective requirements of corresponding compounds.
- the present invention further enables a particularly effective utilization of the waste heat generated in a steam cracking process. This can first for
- the vaporized portion is then subjected to the steam cracking process.
- Further waste heat may, for example, also be used to heat the further stream of crude oil, which is then fed to the distillation column for atmospheric distillation.
- the quench cooler can be integrated into a corresponding heat recovery circuit, for example, by steam generated there is used to heat the crude oil stream.
- the separation by distillation of the separating insert formed using the Quenchabstroms together with the other crude oil is carried out, as explained, advantageously initially at atmospheric pressure and then in vacuo, so that recourse to known methods of refinery technology for distillation can be used and appropriate processes for the treatment of the distillation effluents can be used.
- distillation effluents or streams derived therefrom may also be at least partially subjected to the steam cracking process.
- diverted streams can each be derived by branching off a partial stream, combining with other streams, chemical or physical
- Reacting at least some components in corresponding streams, heating, cooling, evaporation, condensation, etc. are formed.
- Hydrocarbons are converted to saturated hydrocarbons and reacted again to form value products in the steam cracking process.
- the recycle streams may be, in particular, atmospheric hydro (ATO) treated by hydrotreatment and / or hydrocracking, and vacuum gas oil treated by hydrotreatment and / or hydrocracking (Vacuum Gasoil, VGO), ie distillation residues from the
- Suitable recycling streams are also unsaturated hydrocarbons having two to four carbon atoms and / or hydrocarbons having five to eight carbon atoms in question. Naphtha can also be used again in corresponding steam cracking processes.
- Vacuum distillation resulting and not further usable vacuum residue and / or the methane formed can be fired to produce energy.
- a plant for the extraction of crude oil products which is adapted to form a stream of crude gas by evaporation of a gaseous stream and the
- the plant is arranged such that in the steam cracking process a cracked gas stream is generated which can be quenched at least in part to give a quench effluent stream with a liquid hydrocarbon stream.
- means are provided which are adapted to use, at least in part, a fraction of the crude oil stream which remains liquid during the evaporation of the crude oil stream, in order to form the liquid hydrocarbon stream used for quenching.
- the quench liquid hydrocarbon stream is lean or free of components separated from the quench effluent or stream formed from the quench effluent stream.
- the Quenchabstrom is obtained by quenching with the liquid hydrocarbon Ström at a temperature which lies in a temperature range from 0 to 250 ⁇ lie.
- inventive plant at least one for fractional distillation at
- Atmospheric-pressure distillation column and means adapted to supply to this distillation column a separation insert formed using at least a portion of the quench effluent and another crude stream.
- means are furthermore provided which are set up to at least partially subject the distillation effluents or streams derived therefrom formed in this distillation column to the steam cracking process.
- Figure 1 shows a plant for the production of crude oil products according to a
- Figure 2 shows a plant for the production of crude oil products according to a
- Plant components simultaneously correspond to steps of a process.
- FIG. 1 shows a plant for the production of crude oil products according to
- Embodiment of the invention shown schematically in a partial view and designated 100 in total.
- the plant 100 supplied crude oil a is divided into two crude oil streams b and c.
- the crude oil stream b is preheated in a convection zone of one or more cracking furnaces 1 and transferred to an evaporation tank 2.
- Vaporization tank 2 vaporizing fraction of the crude oil stream b is passed as stream d after mixing with steam through the radiation zone of the cracking furnace or 1, wherein a cleavage gas e is obtained.
- the cracked gas e is cooled in a quench cooler 3 and then quenched in a quench device 4 with a portion of the crude oil stream b remaining liquid in the evaporation tank 2, here illustrated with stream f.
- a separating insert formed from the quenching stream g (without a separate name) is transferred to a distillation column 5 for fractional atmospheric distillation, into which the crude oil stream c is also fed.
- the distillation column 5 is operated in a conventional manner, so that in this
- an atmospheric residue h and an atmospheric gas oil i can be obtained.
- a stream k is withdrawn containing light products from the cracking furnace (s) 1 and the crude oil stream c.
- water (not shown) in a water scrubber 6
- a water-naphtha mixture is separated from the stream k and transferred as stream I into a decanter 7.
- a water flow m and a naphtha flow n is obtained.
- gaseous remaining portions which are substantially hydrocarbons having one to four carbon atoms are withdrawn as stream o and fed to a decomposition part, which may be formed in a known manner.
- a decomposition part which may be formed in a known manner.
- first a separation of methane and / or methane and ethane can be carried out (so-called Demethanizer First or Deethanizer First method).
- the plant 100 is in an expanded view, i. as an extended section of an overall system 100, illustrated and designated 200 in total.
- a correspondingly processed current s can in the
- Steam splitting method can be returned. From a stream u, which contains substantially hydrocarbons having five to eight carbon atoms, aromatics can be separated in an aromatic extraction unit 12 and carried out as stream v from the plant. A remaining portion can be used as power w the
- stream o which predominantly has hydrocarbons having one to four carbon atoms, can be converted into a C4 decomposition part 13 in which the product streams indicated here overall with x, for example ethylene, propylene and butadiene, can be separated.
- a methane stream y can be carried out from the plant and / or used for heating.
- Hydrocarbons not recovered as product streams x can be recycled as stream z into the steam cracking process.
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014006326.7A DE102014006326A1 (de) | 2014-04-30 | 2014-04-30 | Verfahren und Anlage zur Gewinnung von Rohölprodukten |
| EP14003149 | 2014-09-11 | ||
| PCT/EP2015/059249 WO2015165920A1 (de) | 2014-04-30 | 2015-04-28 | Verfahren und anlage zur gewinnung von rohölprodukten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3137577A1 true EP3137577A1 (de) | 2017-03-08 |
| EP3137577B1 EP3137577B1 (de) | 2018-06-20 |
Family
ID=52997464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15717936.7A Not-in-force EP3137577B1 (de) | 2014-04-30 | 2015-04-28 | Verfahren zur gewinnung von rohölprodukten |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US9994781B2 (de) |
| EP (1) | EP3137577B1 (de) |
| JP (1) | JP2017516892A (de) |
| KR (1) | KR20160146767A (de) |
| CN (1) | CN106414672B (de) |
| AU (1) | AU2015254694A1 (de) |
| BR (1) | BR112016025289A2 (de) |
| HU (1) | HUE039685T2 (de) |
| PH (1) | PH12016501983A1 (de) |
| RU (1) | RU2016143914A (de) |
| WO (1) | WO2015165920A1 (de) |
| ZA (1) | ZA201607160B (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847365A (zh) * | 2005-04-14 | 2006-10-18 | 高忠武 | 用重质油加工成轻质燃料油的釜式催化裂化工艺方法 |
| US7374664B2 (en) | 2005-09-02 | 2008-05-20 | Equistar Chemicals, Lp | Olefin production utilizing whole crude oil feedstock |
| US7563357B2 (en) * | 2007-01-26 | 2009-07-21 | Exxonmobil Chemical Patents Inc. | Process for cracking synthetic crude oil-containing feedstock |
| US8118996B2 (en) * | 2007-03-09 | 2012-02-21 | Exxonmobil Chemical Patents Inc. | Apparatus and process for cracking hydrocarbonaceous feed utilizing a pre-quenching oil containing crackable components |
| US20090050523A1 (en) | 2007-08-20 | 2009-02-26 | Halsey Richard B | Olefin production utilizing whole crude oil/condensate feedstock and selective hydrocracking |
| MY155605A (en) | 2009-03-31 | 2015-11-13 | Equistar Chem Lp | Processing of acid containing hydrocarbons |
| US8105479B2 (en) | 2009-06-18 | 2012-01-31 | Exxonmobil Chemical Patents Inc. | Process and apparatus for upgrading steam cracker tar-containing effluent using steam |
-
2015
- 2015-04-28 CN CN201580021531.1A patent/CN106414672B/zh not_active Expired - Fee Related
- 2015-04-28 JP JP2016565438A patent/JP2017516892A/ja not_active Withdrawn
- 2015-04-28 WO PCT/EP2015/059249 patent/WO2015165920A1/de not_active Ceased
- 2015-04-28 RU RU2016143914A patent/RU2016143914A/ru not_active Application Discontinuation
- 2015-04-28 BR BR112016025289A patent/BR112016025289A2/pt not_active IP Right Cessation
- 2015-04-28 KR KR1020167030316A patent/KR20160146767A/ko not_active Withdrawn
- 2015-04-28 EP EP15717936.7A patent/EP3137577B1/de not_active Not-in-force
- 2015-04-28 HU HUE15717936A patent/HUE039685T2/hu unknown
- 2015-04-28 AU AU2015254694A patent/AU2015254694A1/en not_active Abandoned
- 2015-04-28 US US15/307,474 patent/US9994781B2/en active Active
-
2016
- 2016-10-06 PH PH12016501983A patent/PH12016501983A1/en unknown
- 2016-10-17 ZA ZA2016/07160A patent/ZA201607160B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015165920A1 (de) | 2015-11-05 |
| US9994781B2 (en) | 2018-06-12 |
| CN106414672B (zh) | 2018-06-22 |
| US20170051213A1 (en) | 2017-02-23 |
| BR112016025289A2 (pt) | 2017-08-15 |
| EP3137577B1 (de) | 2018-06-20 |
| HUE039685T2 (hu) | 2019-01-28 |
| PH12016501983A1 (en) | 2016-12-19 |
| KR20160146767A (ko) | 2016-12-21 |
| CN106414672A (zh) | 2017-02-15 |
| RU2016143914A3 (de) | 2018-10-15 |
| JP2017516892A (ja) | 2017-06-22 |
| AU2015254694A1 (en) | 2016-11-10 |
| RU2016143914A (ru) | 2018-05-30 |
| ZA201607160B (en) | 2018-05-30 |
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