WO2014060072A1 - Verfahren zum abtrennen schwerer kohlenwasserstoffe aus einer kohlenwasserstoff-reichen fraktion - Google Patents
Verfahren zum abtrennen schwerer kohlenwasserstoffe aus einer kohlenwasserstoff-reichen fraktion Download PDFInfo
- Publication number
- WO2014060072A1 WO2014060072A1 PCT/EP2013/002974 EP2013002974W WO2014060072A1 WO 2014060072 A1 WO2014060072 A1 WO 2014060072A1 EP 2013002974 W EP2013002974 W EP 2013002974W WO 2014060072 A1 WO2014060072 A1 WO 2014060072A1
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- WIPO (PCT)
- Prior art keywords
- hydrocarbon
- rich fraction
- hydrocarbons
- liquefied
- heavy hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
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- 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
- C10G5/00—Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas
- C10G5/04—Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas with liquid absorbents
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- 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
- C10G5/00—Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas
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- 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
- C10G5/00—Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas
- C10G5/06—Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas by cooling or compressing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/0204—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the feed stream
- F25J3/0209—Natural gas or substitute natural gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
- F25J3/0233—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of CnHm with 1 carbon atom or more
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
- F25J3/0247—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of CnHm with 4 carbon atoms or more
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/06—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation
- F25J3/0605—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation characterised by the feed stream
- F25J3/061—Natural gas or substitute natural gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/06—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation
- F25J3/063—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation characterised by the separated product stream
- F25J3/065—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by partial condensation characterised by the separated product stream separation of CnHm with 4 carbon atoms or more
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/54—Specific separation steps for separating fractions, components or impurities during preparation or upgrading of a fuel
- C10L2290/543—Distillation, fractionation or rectification for separating fractions, components or impurities during preparation or upgrading of a fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/02—Processes or apparatus using separation by rectification in a single pressure main column system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/40—Features relating to the provision of boil-up in the bottom of a column
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/72—Refluxing the column with at least a part of the totally condensed overhead gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/30—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/50—Processes or apparatus using other separation and/or other processing means using absorption, i.e. with selective solvents or lean oil, heavier CnHm and including generally a regeneration step for the solvent or lean oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2210/00—Processes characterised by the type or other details of the feed stream
- F25J2210/04—Mixing or blending of fluids with the feed stream
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2210/00—Processes characterised by the type or other details of the feed stream
- F25J2210/06—Splitting of the feed stream, e.g. for treating or cooling in different ways
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2215/00—Processes characterised by the type or other details of the product stream
- F25J2215/04—Recovery of liquid products
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2220/00—Processes or apparatus involving steps for the removal of impurities
- F25J2220/60—Separating impurities from natural gas, e.g. mercury, cyclic hydrocarbons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
- F25J2235/60—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being (a mixture of) hydrocarbons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2245/00—Processes or apparatus involving steps for recycling of process streams
- F25J2245/02—Recycle of a stream in general, e.g. a by-pass stream
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2260/00—Coupling of processes or apparatus to other units; Integrated schemes
- F25J2260/20—Integration in an installation for liquefying or solidifying a fluid stream
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/12—External refrigeration with liquid vaporising loop
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/60—Closed external refrigeration cycle with single component refrigerant [SCR], e.g. C1-, C2- or C3-hydrocarbons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/66—Closed external refrigeration cycle with multi component refrigerant [MCR], e.g. mixture of hydrocarbons
Definitions
- the invention relates to a process for separating heavy hydrocarbons, in particular C 6 + hydrocarbons and / or aromatic hydrocarbons
- Hydrocarbons such as benzene
- a hydrocarbon-rich fraction to be liquefied, especially from natural gas, wherein the hydrocarbon-rich fraction is pre-cooled prior to the separation of the heavy hydrocarbons.
- SKW - liquefied natural gas
- the necessary for the separation of the SKW return at the top of the separation column is either generated by a refrigerant or a partial stream of liquefied natural gas (LNG) is used as reflux.
- LNG liquefied natural gas
- the object of the present invention is to provide a method for separating heavy hydrocarbons from a hydrocarbon-rich fraction to be liquefied, which with a reasonable amount of equipment sufficient separation of SKW, in particular benzene, from the zu
- a generic method for separating heavy hydrocarbons from a hydrocarbon-rich fraction to be liquefied is proposed, which is characterized in that the hydrocarbon-rich fraction before their precooling and / or serving for the separation of the heavy hydrocarbons separating a C 5- hydrocarbon-rich fraction is added at least in an amount, preferably in liquid form, that freezing of the heavy hydrocarbons to be separated is avoided.
- the hydrocarbon-rich fraction to be liquefied is / are mixed or injected with C 5 -hydrocarbons-rich fraction (s) before their precooling and / or the separation column used for the separation of the heavy hydrocarbons, the amount thereof being such is chosen large that a freezing of the heavy hydrocarbons to be separated in the
- the C 5 -hydrocarbon-rich fraction (s) is preferably in liquid form.
- the process according to the invention requires the provision of at least one suitable C 5 -hydrocarbon-rich fraction, which will be discussed below.
- the process according to the invention makes it possible to sufficiently separate heavy hydrocarbons (SKW), in particular benzene, from so-called very light natural gas, so that the freezing of these components in the
- Claims are characterized in that the admixing C 5 -hydrocarbon-rich fraction (s) is at least partially formed from the hydrocarbon-rich fraction to be liquefied, the content of the C 2+ hydrocarbons in the liquefied
- Hydrocarbon-rich fraction is at most 15 mol%
- the C 5 -hydrocarbon-rich fraction (s) to be admixed contains between 50 and 100% by volume of i- and / or n-pentane
- the C 5 -hydrocarbon-rich fraction (s) to be mixed additionally contains propane, butane, hexane and / or higher hydrocarbons or
- the separation column is a partial stream of the non-precooled hydrocarbon-rich fraction (fed as heating medium, the separation column supplied C 5 -hydrocarbon-rich fraction cooled to a temperature between -100 and -130 ° C and the separation column preferably above the feed point the one to be liquefied
- Hydrocarbon-rich fraction is fed to the separation column, a partial flow of the heavy hydrocarbons freed and liquefied hydrocarbon-rich fraction is fed as reflux, and / or the hydrocarbon-rich fraction to be liquefied is pre-cooled to between -25 and -55 ° C before separation of the heavy hydrocarbons.
- the inventive method for separating heavy hydrocarbons from a hydrocarbon-rich fraction to be liquefied and further advantageous embodiments thereof will be explained in more detail with reference to the embodiment shown in the figure 1.
- the to be liquefied hydrocarbon-rich fraction 1 which is a so-called.
- Very light natural gas is pre-cooled in the heat exchanger E1 to a temperature between -25 to -55 ° C and then via line 2 one of
- the precooled fraction 2 is optionally present in two phases.
- the cooling of the hydrocarbon-rich fraction to be liquefied in the heat exchangers E1, E2 and E2 can take place against one or more refrigerant circuits and / or refrigerant mixture cycles. Since these are not the subject of the method according to the invention, a representation in detail is unnecessary.
- the hydrocarbon-rich fraction 1 to be liquefied is admixed via line 15 with a C 5 -hydrocarbons-rich fraction whose origin will be explained later, at least in an amount such that the heavy hydrocarbons to be separated off in the separation column T 1 freeze out in the separation column T 1 and the liquefaction stage E2 / E3 is avoided.
- This admixing C 5 -hydrocarbon-rich fraction is preferably present in liquid form.
- This C 5 -hydrocarbon-rich fraction 15 to be admixed with the hydrocarbon-rich fraction 1 to be liquefied preferably contains between 50 and 100% by volume of i- and / or n-pentane. Furthermore, it may additionally contain propane, butane, hexane and / or higher hydrocarbons in small amounts.
- composition of the C 5 -hydrocarbon-rich fraction 15 will be approximated by the composition of the hydrocarbons to be liquefied. rich fraction 1 or the heavy hydrocarbons contained in it.
- the separation column T1 is fed via line 1, in which a pressure relief valve a is arranged, a partial flow of the not pre-cooled hydrocarbon-rich fraction as a heating medium.
- a pressure relief valve a is arranged, a partial flow of the not pre-cooled hydrocarbon-rich fraction as a heating medium.
- an external heat transfer medium not shown in FIG. 1 can also be used to heat the separation column T1.
- the separation column T1 is operated for energetic reasons as close as possible to the pressure at which the hydrocarbon-rich fraction 1 to be liquefied is present. From the bottom of the separation column T1 are via line 7 the
- This liquid fraction 7 is via the expansion valve b in a so-called.
- Stabilization column T2 whose function will be explained in more detail below, fed.
- the separation column T1 is fed via lines 14 and 20, in which expansion valves e and i are arranged, as a mixture of two different fractions, which will also be discussed in more detail below .
- At the top of the separation column T1 is via line 3 one of heavy
- the main stream 4 is fed to the heat exchanger E2 and cooled in this to a temperature between -1 10 and -130 ° C and liquefied.
- Hydrocarbon-rich fraction is fed via line 5 to the heat exchanger E3, in this subcooled to a temperature between -150 and -160 ° C and then via line 6 as a liquefied product (LNG) their other
- Via line 19 is a partial flow of liquefied in the heat exchanger E2
- the reflux pump P1 serves to pump the liquid fraction 20 withdrawn from the pump receiver tank D1 to a slightly higher pressure than prevails in the separation column T1.
- the pressure control of the pump reservoir tank D1 is performed by the prescribed partial flow 18th
- Liquefied hydrocarbon-rich fraction 1 used refrigerant or refrigerant mixture can be used as a refrigeration supply to produce in a separate, not shown in the figure 1, arranged at the top of the separation column T1 heat exchanger a return.
- the liquid bottom product 7 is fed to the separation column T1 of the stabilization column T2. While the separation column T1 is preferably operated at pressures between 30 and 60 bar, the stabilization column T2 is preferably operated at pressures between 10 and 30 bar.
- the bottom product 8 of the stabilizing column T2 is a so-called. Stabilized condensate fraction at
- Partial stream 9 of this fraction is heated in the heat exchanger E5 against a suitable medium and partially evaporated and serves the stabilizing column T2 as
- the top product 10 of the stabilizing column T2 is cooled in the heat exchanger E4 against ambient air, cooling water and / or refrigerant or refrigerant mixture and thereby partially condensed.
- the remaining gas phase 1 1 is separated and fed to a further use, for example.
- the top product 10 of the stabilizing column T2 in the heat exchanger E4 can also be completely condensed, so that no residual gas is obtained.
- the obtained in the return tank D2 liquid fraction 12 is pumped by the pump P2 to a pressure which is slightly higher than the pressure of the separation column T1.
- a first substream of this C 5 -hydrocarbon-rich liquid is fed via line 13, in which an expansion valve c is arranged, to the stabilizing column 12 as reflux, while the second substream 14 according to the invention is fed to the separating column T1 after being subcooled in the heat exchangers E1 and E2 whose temperature is between -100 and -130 ° C.
- this stream 14 before it is fed to the separation column T1 either with the
- the reflux amount of the first substream 13 of the C 5 -hydrocarbon-rich fraction is adjusted such that the content of heavy hydrocarbons, in particular the benzene content, of the C 5 -hydrocarbon-rich fraction is sufficiently low to prevent freezing of heavy hydrocarbons, in particular Benzene, in the process of avoidance.
- the internal circuit 14 of the C 5 - hydrocarbons-rich fraction to supply a small amount of C 5 hydrocarbons. This is done via line 16 and expansion valve f.
- the above-mentioned admixture of a C 5 -hydrocarbons-rich fraction to be liquefied hydrocarbon-rich fraction 1 is preferably carried out by taking a partial stream 15 of the internal circuit 14 of the C 5 - hydrocarbons-rich fraction, wherein the control valve d is provided for flow control.
- an admixture of C 5 hydrocarbons can be realized via the line sections 17 and 15 and control valve g.
- the liquefaction and supercooling of the withdrawn at the top of the separation column T1 hydrocarbons-rich fraction 3 can also be done in only one heat exchanger. In this case, the partial flow 19, which is used as reflux for the separation column T1, withdrawn after this heat exchanger.
- the liquid C 5 -hydrocarbon-rich fraction 14 is cooled exclusively in the heat exchanger E1 to a temperature between about -25 and -55 ° C and then the
- Partial stream 19 mixed or abandoned between the top of the separation column T1 and the feed point of the liquefied hydrocarbon-rich fraction 2 of the separation column T1.
- the inventive method for separating heavy hydrocarbons from a hydrocarbon-rich fraction to be liquefied allows with a reasonable expenditure on equipment sufficient separation of heavy hydrocarbons, in particular of benzene, from the liquefied
- Hydrocarbon-rich fraction to avoid solid precipitation without noticeably increasing the energy consumption for the liquefaction process.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2015111202A RU2015111202A (ru) | 2012-10-16 | 2013-10-02 | Способ удаления тяжелых углеводородов из фракции с высоким содержанием углеводородов |
| US14/435,749 US20150267137A1 (en) | 2012-10-16 | 2013-10-02 | Method for separating heavy hydrocarbons from a hydrocarbon-rich fraction |
| AU2013332024A AU2013332024A1 (en) | 2012-10-16 | 2013-10-02 | Method for separating heavy hydrocarbons from a hydrocarbon-rich fraction |
| CN201380049811.4A CN104685032A (zh) | 2012-10-16 | 2013-10-02 | 从富烃馏分中分离重烃的方法 |
| CA2881984A CA2881984A1 (en) | 2012-10-16 | 2013-10-02 | Method for separating heavy hydrocarbons from a hydrocarbon-rich fraction |
| BR112015007787A BR112015007787A2 (pt) | 2012-10-16 | 2013-10-02 | método para separar hidrocarbonetos pesados de uma fração rica em hidrocarbonetos |
| NO20150584A NO20150584A1 (en) | 2012-10-16 | 2015-05-12 | Method of separating heavy hydrocarbons from a hydrocarbon-rich fraction |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012020354.3A DE102012020354A1 (de) | 2012-10-16 | 2012-10-16 | Verfahren zum Abtrennen schwerer Kohlenwasserstoffe aus einer Kohlenwasserstoff-reichen Fraktion |
| DE102012020354.3 | 2012-10-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014060072A1 true WO2014060072A1 (de) | 2014-04-24 |
Family
ID=49322321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2013/002974 Ceased WO2014060072A1 (de) | 2012-10-16 | 2013-10-02 | Verfahren zum abtrennen schwerer kohlenwasserstoffe aus einer kohlenwasserstoff-reichen fraktion |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20150267137A1 (de) |
| CN (1) | CN104685032A (de) |
| AU (1) | AU2013332024A1 (de) |
| BR (1) | BR112015007787A2 (de) |
| CA (1) | CA2881984A1 (de) |
| DE (1) | DE102012020354A1 (de) |
| NO (1) | NO20150584A1 (de) |
| RU (1) | RU2015111202A (de) |
| WO (1) | WO2014060072A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110740795A (zh) * | 2017-06-15 | 2020-01-31 | 埃克森美孚上游研究公司 | 使用成束的紧凑并流接触系统的分馏系统 |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016137842A1 (en) * | 2015-02-24 | 2016-09-01 | Ihi E&C International Corporation | Method and apparatus for removing benzene contaminants from natural gas |
| EP3315773A1 (de) * | 2016-10-25 | 2018-05-02 | Linde Aktiengesellschaft | Pumpenvorlagebehälter, rektifikationssystem und verfahren zur tieftemperaturrektifikation |
| US11320197B2 (en) | 2017-03-20 | 2022-05-03 | Conocophillips Company | Alternative two column HRU design with rich reflux |
| CN107726731B (zh) * | 2017-10-26 | 2019-12-03 | 枣庄学院 | 一种防冻堵的液化天然气生产装置及其生产工艺 |
| JP7051372B2 (ja) * | 2017-11-01 | 2022-04-11 | 東洋エンジニアリング株式会社 | 炭化水素の分離方法及び装置 |
| JP7043126B6 (ja) * | 2017-11-06 | 2022-04-18 | 東洋エンジニアリング株式会社 | Lngから複数種の炭化水素を分離回収するための装置 |
| WO2019193740A1 (ja) * | 2018-04-06 | 2019-10-10 | 日揮株式会社 | 天然ガス処理方法、及び天然ガス処理装置 |
| CN109401802A (zh) * | 2018-11-22 | 2019-03-01 | 天津市振津石油天然气工程有限公司 | 一种用于脱除天然气中重烃组分的橇装装置 |
| RU2730291C1 (ru) * | 2019-12-24 | 2020-08-21 | Андрей Владиславович Курочкин | Установка низкотемпературного фракционирования для комплексной подготовки газа |
| CN115371288B (zh) * | 2022-08-23 | 2023-09-12 | 中国海洋石油集团有限公司 | 利用lng接收站为炼厂提供冷能的供冷系统 |
| US20240417639A1 (en) * | 2023-06-19 | 2024-12-19 | Air Products And Chemicals, Inc. | Apparatus and Process for Removal of Heavy Hydrocarbons from a Feed Gas |
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| GB1275260A (en) * | 1968-09-30 | 1972-05-24 | Exxon Research Engineering Co | Improvements in the purification of natural gas |
| US5979181A (en) * | 1996-06-05 | 1999-11-09 | Linde Aktiengesellschaft | Method for the liquefaction of a hydrocarbon-rich gas stream containing aromatic and heavy hydrocarbons |
| WO2004057253A2 (en) * | 2002-12-19 | 2004-07-08 | Abb Lummus Global Inc. | Lean reflux-high hydrocarbon recovery process |
| DE102004046342A1 (de) * | 2004-09-24 | 2006-03-30 | Linde Ag | Verfahren zum Entfernen unerwünschter Komponenten aus einem Gasstrom |
| WO2010109130A1 (fr) * | 2009-03-25 | 2010-09-30 | Technip France | Procédé de traitement d'un gaz naturel de charge pour obtenir un gaz naturel traité et une coupe d'hydrocarbures en c5 +, et installation associée |
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|---|---|---|---|---|
| US3516261A (en) * | 1969-04-21 | 1970-06-23 | Mc Donnell Douglas Corp | Gas mixture separation by distillation with feed-column heat exchange and intermediate plural stage work expansion of the feed |
| US4024191A (en) * | 1976-04-01 | 1977-05-17 | Phillips Petroleum Company | Fractional distillation process |
| DE10233410A1 (de) * | 2002-07-23 | 2004-02-12 | Linde Ag | Verfahren zum Verflüssigen eines Kohlenwasserstoff-reichen Stromes mit gleichzeitiger Gewinnung einer C3/C4-reichen Fraktion |
| PE20060989A1 (es) * | 2004-12-08 | 2006-11-06 | Shell Int Research | Metodo y dispositivo para producir una corriente de gas natural liquido |
| FR2883769B1 (fr) * | 2005-03-31 | 2007-06-08 | Inst Francais Du Petrole | Procede de pre-traitement d'un gaz acide |
-
2012
- 2012-10-16 DE DE102012020354.3A patent/DE102012020354A1/de not_active Withdrawn
-
2013
- 2013-10-02 BR BR112015007787A patent/BR112015007787A2/pt not_active IP Right Cessation
- 2013-10-02 CN CN201380049811.4A patent/CN104685032A/zh active Pending
- 2013-10-02 RU RU2015111202A patent/RU2015111202A/ru not_active Application Discontinuation
- 2013-10-02 AU AU2013332024A patent/AU2013332024A1/en not_active Abandoned
- 2013-10-02 US US14/435,749 patent/US20150267137A1/en not_active Abandoned
- 2013-10-02 WO PCT/EP2013/002974 patent/WO2014060072A1/de not_active Ceased
- 2013-10-02 CA CA2881984A patent/CA2881984A1/en not_active Abandoned
-
2015
- 2015-05-12 NO NO20150584A patent/NO20150584A1/en not_active Application Discontinuation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1275260A (en) * | 1968-09-30 | 1972-05-24 | Exxon Research Engineering Co | Improvements in the purification of natural gas |
| US5979181A (en) * | 1996-06-05 | 1999-11-09 | Linde Aktiengesellschaft | Method for the liquefaction of a hydrocarbon-rich gas stream containing aromatic and heavy hydrocarbons |
| WO2004057253A2 (en) * | 2002-12-19 | 2004-07-08 | Abb Lummus Global Inc. | Lean reflux-high hydrocarbon recovery process |
| DE102004046342A1 (de) * | 2004-09-24 | 2006-03-30 | Linde Ag | Verfahren zum Entfernen unerwünschter Komponenten aus einem Gasstrom |
| WO2010109130A1 (fr) * | 2009-03-25 | 2010-09-30 | Technip France | Procédé de traitement d'un gaz naturel de charge pour obtenir un gaz naturel traité et une coupe d'hydrocarbures en c5 +, et installation associée |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110740795A (zh) * | 2017-06-15 | 2020-01-31 | 埃克森美孚上游研究公司 | 使用成束的紧凑并流接触系统的分馏系统 |
| CN110740795B (zh) * | 2017-06-15 | 2022-02-25 | 埃克森美孚上游研究公司 | 使用成束的紧凑并流接触系统的分馏系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112015007787A2 (pt) | 2017-07-04 |
| CA2881984A1 (en) | 2014-04-24 |
| CN104685032A (zh) | 2015-06-03 |
| DE102012020354A1 (de) | 2014-04-17 |
| RU2015111202A (ru) | 2016-12-10 |
| AU2013332024A1 (en) | 2015-03-05 |
| US20150267137A1 (en) | 2015-09-24 |
| NO20150584A1 (en) | 2015-05-12 |
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