WO2012133319A1 - 再生水素化分解触媒及び炭化水素油の製造方法 - Google Patents
再生水素化分解触媒及び炭化水素油の製造方法 Download PDFInfo
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- WO2012133319A1 WO2012133319A1 PCT/JP2012/057767 JP2012057767W WO2012133319A1 WO 2012133319 A1 WO2012133319 A1 WO 2012133319A1 JP 2012057767 W JP2012057767 W JP 2012057767W WO 2012133319 A1 WO2012133319 A1 WO 2012133319A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
- B01J29/10—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y containing iron group metals, noble metals or copper
- B01J29/12—Noble metals
- B01J29/126—Y-type faujasite
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/90—Regeneration or reactivation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/04—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/04—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst
- B01J38/12—Treating with free oxygen-containing gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/48—Liquid treating or treating in liquid phase, e.g. dissolved or suspended
- B01J38/50—Liquid treating or treating in liquid phase, e.g. dissolved or suspended using organic liquids
- B01J38/56—Hydrocarbons
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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
- C10G47/00—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions
- C10G47/02—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions characterised by the catalyst used
- C10G47/10—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions characterised by the catalyst used with catalysts deposited on a carrier
- C10G47/12—Inorganic carriers
- C10G47/16—Crystalline alumino-silicate carriers
- C10G47/18—Crystalline alumino-silicate carriers the catalyst containing platinum group metals or compounds thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/20—After treatment, characterised by the effect to be obtained to introduce other elements in the catalyst composition comprising the molecular sieve, but not specially in or on the molecular sieve itself
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/30—After treatment, characterised by the means used
- B01J2229/42—Addition of matrix or binder particles
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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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1022—Fischer-Tropsch products
Definitions
- the present invention relates to a regenerated hydrocracking catalyst and a method for producing a hydrocarbon oil using the regenerated hydrocracking catalyst.
- hydrocarbon raw materials such as natural gas
- FT synthesis reaction mixed gas containing carbon monoxide gas and hydrogen gas as main components
- Synthetic oil obtained from synthesis gas by FT synthesis reaction (hereinafter sometimes referred to as “FT synthetic oil”) is a mixture mainly composed of aliphatic hydrocarbons having a wide carbon number distribution.
- a naphtha fraction, a middle fraction, and a wax fraction can be obtained by fractionating oil according to its boiling point.
- the middle fraction is the most useful fraction corresponding to the kerosene / light oil base, and it is desired to obtain this in a high yield.
- a hydrocarbon having a boiling range corresponding to the middle fraction can be obtained.
- the FT synthetic oil can be obtained.
- a useful middle distillate can be obtained in a high yield.
- Such a hydrocracking catalyst is selected from a support containing zeolite and an amorphous composite metal oxide having solid acidity, and a noble metal belonging to Groups 8 to 10 of the periodic table supported on the support.
- a catalyst containing an active metal is known (see, for example, Patent Documents 2 and 3).
- the hydrocracking catalyst when the hydrocracking catalyst is charged into the reaction apparatus and the hydrocracking operation of the raw material oil containing the wax fraction is performed, the activity of the catalyst decreases with the lapse of the operating time. And when the activity of a catalyst falls to a predetermined
- the used hydrocracking catalyst extracted from the reactor hereinafter sometimes referred to as “used hydrocracking catalyst” or simply “used catalyst” is regenerated and reused. By doing so, the cost required for the expensive catalyst can be reduced, and disposal of the used catalyst as waste can be avoided.
- regenerated hydrocracking catalyst obtained by regenerating a spent catalyst
- the activity at the initial stage of operation is relatively low. Although it is high, the activity greatly decreases with the passage of operation time. In particular, the activity of the catalyst decreased greatly at the beginning of the operation until about 500 hours from the start of the operation, and the activity during the so-called “stable period” in which the gradual decrease in activity continued thereafter was low. Further, the middle distillate selectivity (ratio of middle distillate in the total hydrocracking product) in this stable period was low, and the middle distillate yield was insufficient.
- the present invention has been made in view of the above circumstances, and in the hydrocracking of hydrocarbon feedstock containing a wax fraction for the purpose of production of a middle distillate, the middle distillate is obtained at a high yield in a stable period.
- An object of the present invention is to provide a regenerated hydrocracking catalyst that can be obtained and a method for producing a hydrocarbon oil using the regenerated hydrocracking catalyst.
- the present invention provides at least one active metal selected from a support containing a zeolite and an amorphous composite metal oxide having solid acidity, and a noble metal of Group 8 to Group 10 supported on the support. And a regenerated hydrocracking catalyst containing 0.05 to 1% by mass of carbonaceous material in terms of carbon atoms, based on the total mass of the catalyst. .
- the regenerated hydrocracking catalyst of the present invention having the above-described configuration, sufficient middle distillate selectivity can be maintained even in the stable period of the catalyst in the hydrocracking of hydrocarbon feedstock containing a wax fraction.
- the middle distillate can be obtained with a high yield over a long period of time.
- the zeolite is preferably an ultrastable Y-type zeolite.
- this hydrocracking catalyst is used for hydrocracking hydrocarbon feedstock containing a wax fraction, the middle fraction can be obtained in a higher yield in the stable period.
- the amorphous composite metal oxide is preferably at least one selected from silica alumina, alumina boria and silica zirconia.
- this hydrocracking catalyst is used for hydrocracking hydrocarbon feedstock containing a wax fraction, the middle fraction can be obtained in a higher yield in the stable period.
- the active metal is preferably platinum.
- this hydrocracking catalyst is used for hydrocracking hydrocarbon feedstock containing a wax fraction, the middle fraction can be obtained in a higher yield in the stable period.
- the present invention also provides a hydrocarbon oil in which a feedstock containing 70% by mass or more of a linear aliphatic hydrocarbon having a boiling point exceeding 360 ° C. is brought into contact with the regenerated hydrocracking catalyst of the present invention in the presence of molecular hydrogen.
- a manufacturing method is provided.
- a middle distillate can be obtained in a high yield from the above raw material oil over a long period of time.
- the raw material oil is preferably a synthetic oil obtained by a Fischer-Tropsch synthesis reaction.
- a synthetic oil obtained by a Fischer-Tropsch synthesis reaction as a raw material oil, a middle distillate free from sulfur and aromatic hydrocarbons can be obtained in high yield.
- a middle distillate can be obtained in a high yield from a hydrocarbon feedstock containing a wax fraction over a long period of time by a regenerative hydrocracking catalyst advantageous in terms of cost.
- the regenerated hydrocracking catalyst of the present embodiment is selected from a support containing zeolite and an amorphous composite metal oxide having solid acidity, and a noble metal metal belonging to Groups 8 to 10 of the periodic table supported on the support.
- the used hydrocracking catalyst containing at least one active metal is regenerated and contains 0.05 to 1% by mass of carbonaceous material in terms of carbon atoms, based on the total mass of the catalyst. It is characterized by that.
- the regenerated hydrotreating catalyst of this embodiment is produced by regenerating a spent hydrocracking catalyst.
- the used hydrocracking catalyst and the regeneration treatment will be described in detail later.
- the carrier constituting the regenerated hydrocracking catalyst of this embodiment contains zeolite.
- zeolite ultrastable Y-type zeolite (USY zeolite), Y-type zeolite, mordenite, ⁇ -zeolite and the like are preferable.
- USY zeolite is particularly preferable.
- the average particle size of USY zeolite is not particularly limited, but is preferably 1.0 ⁇ m or less, more preferably 0.5 ⁇ m or less. Further, in the USY zeolite, the silica / alumina molar ratio (molar ratio of silica to alumina) is preferably 10 to 200, more preferably 15 to 100, and further preferably 20 to 60.
- the support contains an amorphous composite metal oxide having solid acidity.
- this amorphous complex metal oxide for example, it is composed of two or more combinations selected from metal oxide units such as alumina, silica, titania, zirconia, boria, magnesia and the like.
- Specific examples of the amorphous composite metal oxide having solid acidity include silica alumina, silica zirconia, alumina boria, alumina zirconia, silica titania, silica magnesia and the like.
- silica alumina, alumina boria, and silica zirconia are preferable, and silica alumina and alumina boria are more preferable.
- the carrier preferably contains USY zeolite and one or more selected from silica alumina, alumina boria and silica zirconia, and comprises USY zeolite and silica alumina and / or alumina boria. Is more preferable.
- the carrier is preferably composed of 0.1 to 20% by mass of zeolite and 10 to 99.5% by mass of an amorphous composite metal oxide having solid acidity.
- the blending ratio of USY zeolite is preferably 0.1 to 10% by mass based on the mass of the whole carrier, and 0.5 to 5% by mass. More preferably.
- the mixing ratio of USY zeolite and silica alumina is preferably 0.03 to 1 in terms of mass ratio.
- the carrier comprises USY zeolite and alumina boria
- the mixing ratio of USY zeolite and alumina boria is preferably 0.03 to 1 in mass ratio.
- the carrier may contain a binder in addition to the zeolite and the amorphous complex metal oxide having solid acidity.
- the binder is not particularly limited, but alumina, silica, titania and magnesia are preferable, and alumina is more preferable.
- the blending amount of the binder is preferably 20 to 98% by mass, and more preferably 30 to 96% by mass based on the mass of the entire carrier.
- the carrier is preferably molded.
- the shape of the molded carrier is not particularly limited, and examples thereof include a spherical shape, a cylindrical shape, a modified cylindrical shape having a three-leaf type / four-leaf type cross section, and a disk shape.
- the method for molding the carrier is not limited, and known methods such as extrusion molding and tableting molding are used.
- the molded carrier is usually fired.
- the active metal supported on the carrier in the regenerated hydrocracking catalyst of this embodiment is at least one selected from the noble metals of Groups 8 to 10 of the periodic table.
- the metal include ruthenium and osmium as the group 8 noble metal, rhodium and iridium as the group 9 noble metal, and palladium and platinum as the group 10 noble metal.
- preferred noble metals are platinum and palladium, and more preferred is platinum.
- a combination of platinum and palladium is also preferably used.
- the periodic table refers to a periodic table of long-period elements based on the provisions of IUPAC (International Union of Pure and Applied Chemistry).
- the content of the active metal supported on the carrier is preferably 0.1 to 3% by mass in terms of metal atom based on the mass of the carrier.
- the content of the active metal is less than the lower limit, the hydrocracking tends not to proceed sufficiently.
- the content of the active metal exceeds the upper limit value, the dispersion of the active metal tends to decrease, and the activity of the catalyst tends to decrease, and the catalyst cost increases.
- the regenerated hydrocracking catalyst of this embodiment contains 0.05 to 1% by mass of a carbonaceous material in terms of carbon atoms, based on the total mass of the catalyst.
- This carbonaceous material includes a carbon-like material which is composed of carbon atoms or carbon atoms and a small amount of hydrogen atoms and / or oxygen atoms and whose structure is not clearly specified.
- the carbonaceous matter produced and deposited on the hydrocracking catalyst when hydrocracking a hydrocarbon raw material containing a wax fraction.
- the content of the carbonaceous material in the catalyst is less than 0.05% by mass, the activity of the regenerated hydrocracking catalyst against excessive hydrocracking cannot be sufficiently suppressed, and the intermediate in the product oil It tends to be difficult to improve the fraction selectivity.
- the content of the carbonaceous material exceeds 1% by mass, the decrease in the activity of the regenerated hydrocracking catalyst with respect to hydrocracking becomes significant, and the hydrocracking reaction is performed in order to maintain a predetermined cracking rate. It is necessary to increase the temperature, and the life of the catalyst tends to be shortened.
- a sample of the catalyst is heated at a high frequency in an oxygen stream to burn the carbonaceous material, and carbon dioxide in the combustion gas is Then, a method of quantifying with a detector using infrared absorption (for example, using a carbon / sulfur analyzer EMIA-920V manufactured by Horiba, Ltd.) is employed.
- the method of the first embodiment is a method in which a predetermined amount of carbonaceous material remains in the used hydrocracking catalyst in the calcination step that is performed when the used hydrocracking catalyst is regenerated.
- a mixture of the above-mentioned zeolite and an amorphous composite metal oxide having solid acidity or a gel thereof, the above-mentioned binder, and a liquid such as water as necessary is kneaded to prepare a clay-like kneaded product. To do.
- a molded product is obtained by extruding the kneaded product, and the molded product is further dried at 70 to 150 ° C., for example.
- a carrier is obtained by firing the dried molded product.
- the firing conditions are selected so that the mechanical strength of the carrier obtained by firing is sufficiently developed.
- the carrier firing conditions various combinations of firing temperature and firing time can be set.
- the firing temperature is preferably in the range of 300 to 550 ° C, more preferably in the range of 350 to 500 ° C.
- the firing time is preferably in the range of about 0.1 to 10 hours, more preferably in the range of about 0.2 to 8 hours.
- the compound containing these noble metal elements used for supporting is not particularly limited as long as it contains the noble metal element, and known compounds are used, but inorganic or organic compounds that are soluble in a solvent, particularly water. Is used.
- Specific examples of the compound containing an active metal element include RuCl 3 when the noble metal is ruthenium, and OsCl 3 .3H 2 O and (NH 4 ) 2 [OsCl 6 ] when the noble metal is osmium.
- RhCl 3 .3H 2 O when the noble metal is rhodium H 2 IrCl 6 .6H 2 OH when the noble metal is iridium
- (NH 4 ) 2 PdCl when the noble metal is palladium. 6
- Pd (NH 3 ) 4 Cl 2 .H 2 O and Pd (C 2 H 5 CO 2 ) 2 such as PtCl 2 , H 2 PtCl 6 , (NH 4 ) 2 PtCl 6 when the noble metal is platinum.
- H 2 Pt (OH) 6 Pt (NH 3 ) 4 Cl 2 .H 2 O, Pt (C 5 H 7 O 2 ) 2 and the like.
- the loading of the compound containing these active metal elements can be performed by a known method. That is, a method of impregnating the shaped carrier with a solution of the compound, preferably an aqueous solution, a method of ion exchange, and the like are preferably used.
- the impregnation method is not particularly limited, and an incipient wetness method or the like is preferably used.
- the carrier carrying the compound containing the active metal element is dried by the above method. Drying can be performed at a temperature of about 70 to 150 ° C., for example.
- the carrier (hereinafter also referred to as “catalyst precursor”) carrying the compound containing the active metal element thus obtained is calcined to obtain a hydrocracking catalyst.
- a hydrocracking catalyst In calcination of the catalyst precursor, components other than the active metal atom, that is, a counter ion, a ligand, and the like are removed from the compound containing the active metal element supported on the carrier.
- the catalyst precursor firing conditions can be set in various combinations of firing temperature and firing time.
- the firing temperature is preferably in the range of 300 to 550 ° C., more preferably in the range of 350 to 530 ° C. preferable.
- the firing time is preferably in the range of about 0.1 to 10 hours, more preferably in the range of about 0.2 to 8 hours.
- the hydrocracking catalyst obtained as described above is charged into a hydrocracking reaction apparatus, and usually the catalyst is activated by reduction treatment with molecular hydrogen (hydrogen gas). Thereafter, the hydrocracking reaction apparatus is supplied with a feedstock oil containing hydrocarbons from the FT synthetic oil-derived wax fraction together with hydrogen gas, and hydrocracking is started.
- the reaction temperature is set so that the decomposition rate, which is an index of the degree of progress of hydrocracking described later, becomes a predetermined value.
- the activity of the hydrocracking catalyst decreases with the passage of operating time.
- the cause of this decrease in activity is not clear, but it is a weak poisoning effect due to oxygen-containing compounds that are by-products of the FT synthesis reaction contained in the feedstock, or water produced by hydrodeoxygenation of oxygen-containing compounds, catalysts
- the deposition of the carbonaceous material produced above, and the aggregation of active metals due to the catalyst being exposed to a high temperature (reaction temperature) for a long time can be considered.
- reaction temperature in order to maintain the decomposition rate at a predetermined value throughout the operation period, an operation is performed in which the reaction temperature is increased within a range that compensates for the decreased catalyst activity as the operation time elapses.
- the reaction temperature reaches the upper limit temperature determined from the viewpoint of the heat resistance of the reactor or the excessive increase in hydrocracking leading to the generation of light fractions, the operation of the hydrocracking reactor is started. Stop.
- the reactor After stopping the operation, the reactor is washed with liquid hydrocarbons at room temperature that is lighter than the wax fraction, such as FT synthetic oil-derived middle fraction or naphtha fraction, and the wax fraction in the reactor is removed. To do. Thereafter, the inside of the reaction apparatus is purged with an inert gas such as nitrogen gas, cooled, the apparatus is opened, and the filled hydrocracking catalyst is extracted. This extracted catalyst is a used hydrocracking catalyst (used catalyst).
- an inert gas such as nitrogen gas
- a regenerated catalyst may be charged instead of an unused catalyst.
- the regeneration process may be performed. That is, the regenerated catalyst of the present embodiment includes a catalyst that has been used a plurality of times and subjected to a plurality of regeneration processes.
- the following description is performed about the example of the used hydrocracking catalyst obtained from the unused hydrocracking catalyst.
- the regeneration treatment mainly includes a carbon content measuring step for measuring the content of the carbonaceous material deposited in the catalyst in the hydrocracking step, a deoiling step, and a firing step.
- the collected spent catalyst sample is washed with a low-boiling hydrocarbon solvent such as hexane to remove the remaining raw material oil and the hydrocarbon that is the product oil in the hydrocracking step. Then, the solvent is removed by drying under reduced pressure or the like, and the carbonaceous material in the catalyst is quantified by subjecting it to the above-described method for quantifying the carbonaceous material.
- a low-boiling hydrocarbon solvent such as hexane
- the result of the carbon content measurement can contribute to the determination of the conditions for the firing process.
- the hydrocarbon content remaining in the used catalyst can also be quantified from the change in mass of the sample before and after washing with the solvent and drying under reduced pressure, and the result is used to determine the conditions for the deoiling process. Can contribute.
- the deoiling step was used for washing performed after the hydrocracking reactor was shut down by heating the used catalyst under an inert stream such as nitrogen gas, preferably under a nitrogen stream. This is a step of removing at least a part of the hydrocarbon.
- the firing temperature is preferably in the range of 250 to 550 ° C., more preferably in the range of 280 to 500 ° C.
- the oil removal time is preferably in the range of about 0.2 to 10 hours, and more preferably in the range of about 0.5 to 8 hours. If the deoiling in this deoiling process is insufficient, the hydrocarbon remaining in the catalyst may cause a rapid oxidation reaction (combustion) in the subsequent calcination process.
- the substantial temperature of the catalyst rises excessively with respect to the set calcination temperature, leading to aggregation of active metals in the catalyst, and the activity of the regenerated hydrocracking catalyst may be reduced.
- the carbonaceous material in the used catalyst may be burned out, and a predetermined amount of the carbonaceous material may not remain in the regenerated hydrocracking catalyst.
- the deoiled spent catalyst is then subjected to a calcination step.
- the carbonaceous material produced and deposited on the catalyst in the hydrocracking step contained in the spent catalyst is the content of the carbonaceous material contained in the regenerated hydrotreating catalyst of this embodiment. Is removed by oxidative decomposition so as to be not more than the upper limit according to the present invention. Further, hydrocarbons remaining in the catalyst through the deoiling step are removed by oxidative decomposition. If the amount of the carbonaceous material contained in the used catalyst is less than the amount corresponding to the content of the carbonaceous material in the target regenerated hydrotreating catalyst, the hydrocarbon contained in the used catalyst. A carbonaceous material may be newly generated by carbonization.
- the content of the carbonaceous substance in the obtained regenerated hydrotreating catalyst is set to 0.05 to 1% by mass in terms of carbon atoms.
- the calcination step is determined in consideration of the amount of carbonaceous material in the used catalyst quantified in the above-described carbon content measurement step. It is preferable.
- the firing temperature is preferably in the range of 300 to 550 ° C., more preferably in the range of 350 to 530 ° C.
- the firing time is preferably in the range of about 0.1 to 10 hours, more preferably in the range of about 0.2 to 8 hours.
- the spent oil catalyst is charged in a heating device for performing calcination, and at the time of raising the temperature to a set calcination temperature, at least a temperature range in which oxidation of the carbonaceous substance proceeds (for example, 250 to At about 400 ° C.), it is preferable to make the rate of temperature rise sufficiently low so that the rapid oxidation reaction does not occur in the process of temperature rise.
- a rate of temperature rise is, for example, 1 to 50 ° C./h, and preferably about 5 to 30 ° C./h.
- the catalyst precursor firing in two stages. That is, in the first stage, firing is performed under a lower temperature condition so that the oxidation of the carbonaceous material proceeds slowly, and the remaining amount of the carbonaceous material is reduced to such an extent that the oxidation proceeds and rapid oxidation does not proceed. In the reduced stage, as a second stage, firing is performed under higher temperature conditions to control the content of the carbonaceous substance in the catalyst.
- the firing temperature in the first stage is selected, for example, in the range of 250 to 400 ° C.
- the second firing temperature is selected in the range of, for example, 350 to 550 ° C.
- the regenerated hydrotreating catalyst of this embodiment can be obtained.
- a used catalyst is regenerated by a conventional regeneration treatment method, a regenerated hydrotreating catalyst substantially free of carbonaceous material is once produced, and the catalyst is immersed in an organic compound.
- This is a method in which a predetermined amount of a carbonaceous substance is contained in the catalyst by firing or heat treatment.
- the used catalyst used in the method of the second embodiment is the same as the used catalyst used in the method of the first embodiment.
- the carbon measurement process and the deoiling process are performed on the used catalyst in the same manner as in the method of the first embodiment.
- the deoiled spent catalyst is subjected to a calcination step (first calcination step).
- first calcination step the carbonaceous material is removed by oxidative decomposition so that the carbonaceous material in the used catalyst does not substantially remain.
- the firing temperature is preferably in the range of 350 to 600 ° C, more preferably in the range of 400 to 550 ° C.
- the firing time is preferably in the range of about 0.1 to 10 hours, more preferably in the range of about 0.2 to 8 hours.
- rapid oxidation of the carbonaceous material is performed by adjusting the rate of temperature rise at the time of temperature rise or performing two-step firing as described in the description of the firing step in the first embodiment. Prevention is preferably performed.
- the catalyst once regenerated through the calcination step as described above (referred to as “preliminary regenerated catalyst”) is immersed in a liquid organic compound.
- the liquid organic compound is not particularly limited as long as it does not contain sulfur, nitrogen, halogen, etc., which are catalyst poisons, but is preferably a liquid hydrocarbon, for example, naphtha produced by the GTL process. A fraction, a kerosene fraction, a light oil fraction and the like are preferably used.
- the method for immersing the pre-regenerated catalyst in these liquid organic compounds is not particularly limited.
- the pre-regenerated catalyst immersed in the liquid organic compound is taken out from the organic compound and subjected to a deoiling step (second deoiling process) in an inert gas, preferably nitrogen gas.
- a deoiling step in an inert gas, preferably nitrogen gas.
- excess organic compounds attached to the pre-regenerated catalyst by immersion are volatilized.
- the conditions for the second deoiling step are appropriately determined from the range of the temperature of about 180 to 500 ° C. and the time of about 0.1 to 10 hours in consideration of the organic compound to be immersed.
- the degreased pre-regenerated catalyst is subjected to a calcination step (second calcination step) in an atmosphere containing molecular oxygen, preferably in an air atmosphere, and the organic compound such as light oil remaining in the pre-regenerative catalyst Is carbonized to produce a carbonaceous material.
- Firing conditions depend on the organic compound used, the content of the organic compound remaining in the pre-regenerated catalyst after the deoiling step, the content of the carbonaceous substance to be included in the regenerated hydrocracking catalyst of the present embodiment, which is the target. Can be set as appropriate.
- the firing temperature is preferably in the range of 300 to 550 ° C., more preferably 350 to 530 ° C.
- the firing time is preferably about 0.1 to 10 hours, more preferably about 0.2 to 8 hours. In this way, the carbonaceous material is produced in the regenerated catalyst so that its content is 0.05 to 1% by mass in terms of carbon atoms.
- the organic compound adhered to the pre-regenerated catalyst is carbonized by heat treatment in an inert gas atmosphere such as nitrogen gas, and a predetermined amount of carbonaceous material. May be produced in the regenerated catalyst.
- the regenerated hydrorefining catalyst of this embodiment can be obtained.
- the regenerated hydrocracking catalyst of the present embodiment described above contains 70% by mass or more of linear aliphatic hydrocarbons having a boiling point exceeding 360 ° C. in the presence of molecular hydrogen.
- FIG. 1 is a schematic configuration diagram showing a production facility corresponding to an upgrading unit in a GTL process, including a hydrocarbon oil production apparatus in which an embodiment of the hydrocarbon oil production method of the present invention is implemented.
- a naphtha, kerosene / light oil base material is obtained from a hydrocarbon (FT synthetic oil) obtained by an FT synthesis reaction in which a preferred embodiment of the method for producing a hydrocarbon oil of the present invention is carried out.
- FT synthetic oil obtained by an FT synthesis reaction in which a preferred embodiment of the method for producing a hydrocarbon oil of the present invention is carried out.
- the hydrocarbon oil production apparatus 100 shown in FIG. 1 uses a synthesis gas (mixed gas of carbon monoxide gas and hydrogen gas) as a raw material to synthesize a hydrocarbon oil (FT synthesis oil) by an FT synthesis reaction.
- FT synthetic oil is supplied from a device (not shown) via line 1.
- the FT synthesis reaction apparatus is supplied with synthesis gas from a reforming reaction apparatus (not shown) that reforms natural gas to produce synthesis gas.
- the hydrocarbon oil production apparatus 100 includes a first rectifying column 20 that fractionates FT synthetic oil into a crude naphtha fraction, a crude middle distillate, and a crude wax fraction, and a line from the top of the first rectifying column 20. Hydrorefining the naphtha fraction hydrotreating reaction apparatus 30 for hydrotreating the crude naphtha fraction supplied by 2, and hydrotreating the crude middle distillate supplied by the line 3 from the center of the first rectifying column 20.
- the second fractionator 60 mainly fractionates the hydrofinished product of the middle fraction and the hydrocracked product of the wax fraction.
- the naphtha fraction is a hydrocarbon fraction (approximately C 5 to C 10 ) having a boiling point of approximately 25 ° C. or higher and generally lower than 150 ° C.
- the middle fraction has a boiling point of approximately 150 to 360 ° C.
- Some hydrocarbon fractions generally C 11 to C 21
- wax fractions are hydrocarbon fractions whose boiling point generally exceeds 360 ° C. (generally C 22 or more).
- the crude naphtha fraction, crude middle fraction, and crude wax fraction have not been subjected to hydrorefining or hydrocracking, respectively, and impurities other than saturated aliphatic hydrocarbons (paraffins) (by-products of the FT synthesis reaction)
- impurities other than saturated aliphatic hydrocarbons (paraffins) by-products of the FT synthesis reaction
- Each of the above-mentioned fractions containing oxygen-containing compounds such as olefins and alcohols.
- the wax fraction hydrocracking reaction apparatus 34 is an apparatus for carrying out the hydrocarbon oil production method of the present embodiment, and the regenerated hydrocracking catalyst of the present embodiment is preferably provided inside as a fixed bed. Filled.
- the crude wax fraction supplied by the line 4 is supplied by an undecomposed wax (details will be described later) recycled by a line 13 connected to the line 4 and a hydrogen gas supply line (not shown) connected to the line 4. After being mixed with hydrogen gas and heated to a reaction temperature by a heating means (not shown) such as a heat exchanger disposed on the line 4, it is supplied to the wax fraction hydrocracking reactor 34 for hydrogenation. Disassembled.
- the middle distillate hydrotreating reactor 32 is preferably packed with a hydrotreating catalyst as a fixed bed.
- the crude middle distillate supplied by the line 3 is mixed with hydrogen gas supplied by a hydrogen gas supply line (not shown) connected to the line 3 and heated by a heat exchanger or the like disposed on the line 3. After being heated to the reaction temperature by means (not shown), it is supplied to the middle distillate hydrorefining reactor 32 and subjected to hydrorefining and hydroisomerization.
- the naphtha fraction hydrotreating reactor 30 is preferably packed with a hydrotreating catalyst as a fixed bed.
- the crude naphtha fraction supplied by the line 2 is mixed with hydrogen gas supplied by a hydrogen gas supply line (not shown) connected to the line 2 and heated by a heat exchanger or the like disposed on the line 2. After being heated to the reaction temperature by means (not shown), it is supplied to the naphtha fraction hydrotreating reactor 30 and hydrotreated.
- the hydrocarbon oil production apparatus 100 includes gas-liquid separators 40 and 42 downstream of the naphtha fraction hydrotreating reactor 30, the middle distillate hydrotreating reactor 32, and the wax fraction hydrocracking reactor 34, respectively. And 44 for gas-liquid separation of liquid hydrocarbons that are hydrorefined products or hydrocracked products discharged from the respective reactors and gaseous components containing unreacted hydrogen gas and gaseous hydrocarbons .
- Each gas-liquid separator is accompanied by a device (not shown) for discharging water produced as a by-product during hydrorefining or hydrocracking.
- the hydrocarbon oil producing apparatus 100 is a gas mainly composed of hydrocarbons having 4 or less carbon atoms from a hydrorefined naphtha fraction supplied via the line 5 downstream of the gas-liquid separator 40.
- the naphtha stabilizer 50 which discharges a gaseous hydrocarbon from the line 8 connected to the tower top is provided.
- a naphtha fraction from which gaseous hydrocarbons have been removed by a line 9 is supplied from the bottom of the naphtha stabilizer 50 and a naphtha tank 70 is provided for storing the naphtha fraction.
- the hydrocarbon oil production apparatus 100 includes a second rectifying column 60 downstream of the gas-liquid separator 42 and the gas-liquid separator 44, and the second rectifying column 60 is connected to the gas-liquid separator 42 by a line.
- a mixture of the hydrorefined middle distillate supplied via 6 and the hydrocracked product of the wax fraction supplied via the line 7 from the gas-liquid separator 44 is fractionated.
- the second fractionator 60 is connected to the center of the second fractionator 60.
- the fraction 11 of the kerosene fraction taken out and transferred to the kerosene tank 72 is connected to the lower part of the second fractionator, and the fraction of light oil fraction fractionated.
- a line 12 is provided for taking out the fuel and transferring it to the light oil tank 74.
- the bottom oil of the second rectifying column 60 mainly composed of undecomposed wax that has not been sufficiently decomposed in the wax fraction hydrocracking reactor 34 is added to the bottom of the second rectifying column 60.
- a line 13 for extraction and recycling to the line 4 upstream of the wax fraction hydrocracking reactor 34 is connected.
- a line 10 is connected to the top of the second rectifying column 60 for extracting light hydrocarbons mainly composed of a naphtha fraction and supplying the extracted light hydrocarbons to the naphtha stabilizer 50.
- the regenerated hydrocracking catalyst of the present embodiment described above is packed in the wax fraction hydrocracking reactor 34.
- the regenerated hydrocracking catalyst is activated by a reduction treatment before passing the raw material oil into the wax fraction hydrocracking reactor 34.
- the reduction treatment is usually performed by bringing the regenerated hydrocracking catalyst into contact with molecular hydrogen (hydrogen gas) under heating. Specifically, reduction treatment is performed in a hydrogen stream at a temperature of about 250 to 550 ° C. for about 0.5 to 20 hours.
- the FT synthetic oil supplied via the line 1 from the FT synthesis reaction apparatus (not shown) is fractionated into a crude naphtha fraction, a crude middle distillate, and a crude wax fraction in the first rectifying column 20.
- the crude wax fraction withdrawn from the bottom of the first rectifying column 20 in the line 4 is a fraction that has a boiling point of approximately 360 ° C. (approximately C 22 or more) and is solid at room temperature.
- This crude wax fraction is mixed with undecomposed wax (details will be described later) recycled through line 13 connected to line 4 and hydrogen gas, heated to the reaction temperature, and supplied to wax fraction hydrocracking reactor 34. And hydrocracked.
- a mixture of the crude wax fraction and the undecomposed wax (hereinafter also referred to as “wax to be treated”) is hydrocracked in the wax fraction hydrocracking reaction apparatus 34 to be a component corresponding to the middle fraction. Is converted.
- the olefins by-produced by the FT synthesis reaction are hydrogenated and converted into paraffin hydrocarbons, and oxygenated compounds such as alcohols are hydrodeoxygenated to form paraffin hydrocarbons. Converted to water.
- the production of isoparaffin by hydroisomerization of normal paraffin that contributes to the improvement of low-temperature fluidity as a fuel oil base material also proceeds.
- a part of the wax to be treated is excessively hydrocracked and converted to a hydrocarbon corresponding to a naphtha fraction having a lower boiling point than a hydrocarbon having a boiling range corresponding to the target middle distillate.
- a part of the wax to be treated undergoes hydrocracking, and is converted into gaseous hydrocarbons having 4 or less carbon atoms such as butanes, propane, ethane, and methane.
- part of the wax to be treated is discharged from the wax fraction hydrocracking reactor 34 as undecomposed wax without being sufficiently hydrocracked.
- the “cracking rate” defined by the following formula (1) is 50 to 90%, preferably 60 to 80%. .
- Decomposition rate (%) [(mass of hydrocarbons whose boiling point in the treated wax unit mass exceeds 360 ° C.) ⁇ (Mass of hydrocarbons whose boiling point in the hydrocracking product unit mass exceeds 360 ° C.)] ⁇ 100 / (mass of hydrocarbons whose boiling point in the unit mass of wax to be treated exceeds 360 ° C.) (1)
- the cracking rate is less than 50%, the hydrocracking of the wax to be treated is insufficient and the yield of middle distillate is lowered.
- the cracking rate is controlled by the reaction temperature in the wax fraction hydrocracking reactor 34.
- the reaction apparatus is usually operated so as to keep the decomposition rate constant by adjusting the reaction temperature. That is, in order to compensate for the decrease in the activity of the regenerated hydrocracking catalyst as the operation time elapses, an operation is performed in which the reaction temperature is increased within a range commensurate with the decrease in activity.
- uncomposed wax refers to wax to be treated in which hydrocracking does not proceed until the boiling point becomes 360 ° C. or less. Undecomposed wax is separated as bottom oil in the second rectifying column 60 described later, and recycled to the wax fraction hydrocracking reactor 34. Further, the “hydrocracking product” means all products including undecomposed wax discharged from the wax fraction hydrocracking reactor 34 unless otherwise specified.
- the reaction temperature (catalyst bed weight average temperature) in the wax fraction hydrocracking reactor 34 is appropriately selected depending on the set cracking rate and the decrease in the activity of the hydrocracking catalyst due to the progress of operation, and can be exemplified by 180 to 400 ° C.
- the temperature is preferably 200 to 370 ° C, more preferably 250 to 350 ° C, still more preferably 280 to 350 ° C.
- the hydrocracking product may be colored to restrict use as a fuel base material.
- reaction temperature is lower than 180 ° C.
- the hydrocracking of the wax fraction does not proceed sufficiently, and the yield of the middle fraction tends to decrease.
- oxygen-containing compounds such as olefins and alcohols in the wax fraction tend not to be sufficiently removed.
- the hydrogen partial pressure in the wax fraction hydrocracking reactor 34 is, for example, 0.5 to 12 MPa, and preferably 1.0 to 5.0 MPa.
- the liquid hourly space velocity in the wax fraction hydrocracking reactor 34 (LHSV), for example, 0.1 ⁇ 10.0h -1, preferably 0.3 ⁇ 3.5 h -1.
- the ratio of hydrogen gas to wax fraction is not particularly limited, but is, for example, 50 to 1000 NL / L, and preferably 70 to 800 NL / L.
- “NL” means the hydrogen capacity (L) in the standard state (0 ° C., 101325 Pa).
- the hydrocracking product discharged from the wax fraction hydrocracking reactor 34 is gas-liquid separated in the gas-liquid separator 44. That is, a gas component composed of unreacted hydrogen gas and mainly hydrocarbon gas of C 4 or less is separated from a liquid component which is a hydrocarbon oil having a carbon number distribution corresponding to the naphtha fraction to the undecomposed wax.
- the separated gas component is reused for the hydrotreating reaction.
- the liquid component is mixed with the hydrolyzed product of the middle distillate supplied from the middle distillate hydrotreating reaction apparatus 32 via the gas-liquid separator 42 and supplied to the second rectifying column 60.
- gas-liquid separator 44 is displayed as a single tank in FIG. 1, it is preferably a multistage gas-liquid separator composed of a plurality of coolers and separation tanks. By performing gas-liquid separation with such an apparatus, it is possible to prevent problems such as the undecomposed wax contained in the hydrocracked product being solidified by rapid cooling and causing the apparatus to be blocked.
- the liquid hydrocarbons discharged from the wax fraction hydrocracking reactor 34 are separated together with the hydrolysed product of the middle fraction supplied from the middle fraction hydrotreating reactor 32.
- the bottom oil mainly composed of the undecomposed wax is extracted from the bottom of the tower.
- the bottom oil is recycled to the line 4 by the line 13, and the undecomposed wax is mixed with the crude wax fraction and supplied again to the wax fraction hydrocracking reactor 34 for hydrocracking.
- hydrocracking is performed at a predetermined cracking rate in order to increase the yield of the middle fraction.
- the wax to be treated is hydrocracked at the cracking rate as described above, some of the wax to be treated is inevitably excessively hydrocracked, and the boiling point is within the boiling range of the middle distillate (approximately 150 to 360). below the lower limit of ° C.) are converted into light fractions (naphtha fraction or C 4 following gaseous hydrocarbons). Accordingly, if the predetermined cracking rate is maintained and the excessive hydrocracking can be suppressed, the middle distillate yield is improved. That is, a regenerated hydrocracking catalyst having high activity for hydrocracking and suppressing activity for excessive hydrocracking is desired.
- Conventional regenerative hydrogen comprising a zeolite and an amorphous composite metal oxide having solid acidity as a support, and comprising at least one active metal selected from Group 8 to Group 10 noble metals supported on the support
- the chemical cracking catalyst is a catalyst having such characteristics.
- the activity of the regenerated hydrocracking catalyst tends to decrease with the lapse of operating time of the wax fraction hydrocracking reactor.
- the progress of the decrease in the activity of the regenerated hydrocracking catalyst is remarkable at the initial stage of operation up to about 500 hours after the start of the operation.
- the catalyst activity is relatively stable and tends to show a gradual decrease.
- the hydrocracking catalyst a catalyst in which the activity for hydrocracking is maintained at a relatively high level in this stable period and the activity for excessive hydrocracking is suppressed is desired.
- the regenerated hydrocracking catalyst does not necessarily satisfy the required performance, the hydrocracking activity is greatly lowered, and the middle distillate selectivity described later is lowered.
- the regenerated hydrocracking catalyst of the present embodiment has the above-described specific configuration, and thus has a relatively high cracking activity and suppressed excessive hydrocracking activity in the stable period of the catalyst. Therefore, the regenerated hydrocracking catalyst of the present embodiment can provide a predetermined cracking rate at a relatively low reaction temperature and a relatively high middle distillate selectivity in the stable period of the catalyst, Middle distillate can be obtained with high yield.
- Middle distillate selectivity (%) [(mass of hydrocarbon having a boiling point of 150 to 360 ° C. in unit mass of hydrocracking product) ⁇ (hydrocarbon having a boiling point of 150 to 360 ° C. in unit mass of wax to be treated) Mass)] ⁇ 100 / [(mass of hydrocarbons whose boiling point in the treated wax unit mass exceeds 360 ° C.) ⁇ (Mass of hydrocarbons whose boiling point in the hydrocracking product unit mass exceeds 360 ° C.]] ... (2)
- the hydrocracking catalyst has two functions of hydrogenation ability by an active metal and solid acidity possessed by the support. And about the active point (acid point) which expresses the solid acidity on a support
- the carbonaceous material contains 0.05 to 1% by mass in terms of carbon atoms, so that this carbonaceous material has an inhibitory effect on the acid sites on the support. Therefore, it is presumed that the acid point catalyzing excessive hydrogenolysis is more selectively inhibited than the acid point catalyzing the appropriate hydrocracking. As a result, the activity against excessive hydrocracking is suppressed relative to the activity against moderate hydrocracking, and the middle distillate selectivity is relatively high with respect to conventional catalysts at a given cracking rate. It seems to give. Thereby, it is estimated that the regenerated hydrocracking catalyst of this embodiment can obtain a higher middle distillate yield than the conventional regenerated hydrocracking catalyst.
- the reason why the high middle distillate selectivity can be maintained even in the stable period of the catalyst is estimated as follows. That is, a regenerated hydrocracking catalyst containing a carbonaceous material in an amount less than 0.05% by mass tends to generate a new carbonaceous material in the initial stage of operation. Since the newly produced carbonaceous material also inhibits acid sites that catalyze moderate hydrocracking, the hydrocracking activity is lowered and the middle distillate selectivity is also lowered. On the other hand, the regenerated hydrocracking catalyst of the present embodiment has little carbonaceous material newly generated in the initial stage of operation, so there is little decrease in hydrocracking activity and middle distillate selectivity in the initial stage of operation, which is stable. It is thought that it is maintained even in the period.
- the crude middle distillate extracted from the center of the first rectifying column 20 by the line 3 is a distillate consisting of a hydrocarbon mixture having a boiling point of approximately 150 to 360 ° C. (approximately C 11 to C 21 ),
- the main component is a linear saturated aliphatic hydrocarbon having a boiling point range, and oxygen-containing compounds such as olefins and alcohols which are by-products of the FT synthesis reaction are included as impurities.
- the crude middle distillate is mixed with hydrogen gas, heated to the reaction temperature, and supplied to the middle distillate hydrotreating reactor 32.
- the reaction apparatus is filled with a hydrorefining catalyst, and hydrorefining and hydroisomerization of the crude middle distillate proceed by bringing the mixture of the crude middle distillate and hydrogen gas into contact with the catalyst. .
- the hydrorefining of the crude middle distillate is a reaction that removes impurities (oxygen compounds such as olefins and alcohols) contained in the crude middle distillate.
- impurities oxygen compounds such as olefins and alcohols
- Olefins unsaturated aliphatic hydrocarbons
- saturated aliphatic hydrocarbons paraffins
- oxygen-containing compounds such as alcohols are hydrodeoxygenated and converted into saturated aliphatic hydrocarbons and water.
- Hydroisomerization involves skeletal isomerization of linear saturated aliphatic hydrocarbons (normal paraffins) and conversion to branched saturated hydrocarbons (isoparaffins).
- normal paraffins linear saturated aliphatic hydrocarbons
- isoparaffins branched saturated hydrocarbons
- a known hydrotreating catalyst As the hydrotreating catalyst charged in the middle distillate hydrotreating reactor 32, a known hydrotreating catalyst can be used.
- the known hydrorefining catalyst for example, at least one selected from a carrier containing an amorphous composite metal oxide having solid acidity and a noble metal of Group 8 to Group 10 supported on the carrier. And a catalyst containing the active metal.
- the amorphous complex metal oxide having solid acidity constituting the carrier for example, a combination of two or more selected from metal oxide units such as alumina, silica, titania, zirconia, boria, magnesia, etc.
- the composite metal oxide include silica alumina, silica zirconia, alumina boria, alumina zirconia, silica titania, silica magnesia, and the like.
- silica alumina, silica zirconia, and alumina boria are preferable, and silica zirconia is more preferable.
- the carrier may contain a small amount of zeolite.
- Preferred zeolites in this case include ultrastable Y-type (USY) zeolite, Y-type zeolite, mordenite, and beta zeolite.
- the ratio of the zeolite to the mass of the carrier is not particularly limited, but is 0.5 to 10% by mass, preferably 1 to 5% by mass.
- the carrier may contain a binder for the purpose of improving the moldability and mechanical strength of the carrier.
- Preferred binders include alumina, silica, magnesia and the like.
- the amount of the binder to be added to the carrier is not particularly limited, but is 20 to 98% by mass, preferably 30 to 96% by mass based on the total mass of the carrier.
- the carrier is preferably molded.
- the shape of the molded carrier is not particularly limited, and examples thereof include a spherical shape, a cylindrical shape, a modified cylindrical shape having a three-leaf type / four-leaf type cross section, and a disk shape.
- the method for molding the carrier is not limited, and known methods such as extrusion molding and tableting molding are used.
- the molded carrier is usually fired.
- noble metals of Group 8 to Group 10 of the periodic table which are active metals constituting the hydrorefining catalyst
- ruthenium and osmium are Group 8 noble metals
- rhodium and iridium are Group 9 noble metals
- Group noble metals are palladium and platinum.
- preferred noble metals are platinum and palladium, and more preferred is platinum.
- a combination of platinum and palladium is also preferably used.
- the content of the active metal supported on the carrier is preferably 0.1 to 3% by mass based on the mass of the carrier as metal atoms.
- the content of the active metal is less than the lower limit, hydrorefining and hydroisomerization tend not to proceed sufficiently.
- the content of the active metal exceeds the upper limit value, the dispersion of the active metal tends to decrease, and the activity of the catalyst tends to decrease, and the catalyst cost increases.
- the regenerated hydrocracking catalyst of this embodiment may be used as the hydrotreating catalyst charged in the middle distillate hydrotreating reaction apparatus 32. Since middle fractions having a smaller number of carbons than wax fractions are relatively less susceptible to hydrocracking, even if the regenerated hydrocracking catalyst of this embodiment is used, light fractions are produced by hydrocracking. Is not noticeable.
- the reaction temperature in the middle distillate hydrotreating reactor 32 is 180 to 400 ° C, preferably 200 to 370 ° C, more preferably 250 to 350 ° C, and particularly preferably 280 to 340 ° C.
- the reaction temperature is the weight average temperature of the catalyst layer in the middle distillate hydrotreating reactor 32.
- the reaction temperature exceeds 400 ° C., decomposition to light components proceeds and not only the yield of middle distillate decreases, but also the product tends to be colored and its use as a fuel oil base tends to be limited. is there.
- the reaction temperature is lower than 180 ° C., oxygen-containing compounds such as alcohols remain without being sufficiently removed, and the production of isoparaffins due to hydroisomerization tends to be suppressed.
- the pressure (hydrogen partial pressure) in the middle distillate hydrotreating reactor 32 is preferably 0.5 to 12 MPa, more preferably 1 to 5 MPa.
- the pressure is less than 0.5 MPa, hydrorefining and hydroisomerization tend not to proceed sufficiently.
- the pressure exceeds 12 MPa the apparatus is required to have high pressure resistance and the equipment cost increases. There is a tendency.
- Liquid hourly space velocity in the middle distillate hydrotreating reactor 32 is preferably from 0.1 ⁇ 10h -1, more to be 0.3 ⁇ 3.5 h -1 preferable.
- LHSV liquid hourly space velocity
- the hydrogen gas / oil ratio in the middle distillate hydrotreating reactor 32 is preferably 50 to 1000 NL / L, and more preferably 70 to 800 NL / L.
- “NL” means the hydrogen capacity (L) in the standard state (0 ° C., 101325 Pa).
- the product discharged from the middle distillate hydrotreating reactor 32 is introduced into the gas-liquid separator 42, and is mainly composed of a liquid product (liquid hydrocarbon), unreacted hydrogen gas and gaseous hydrocarbon. Gas components are separated. Liquid hydrocarbon (hydrorefined middle distillate) is introduced into the second rectifying column 60 downstream, and the gas component is reused in the hydrotreating reaction.
- the crude naphtha fraction extracted from the top of the first rectifying column 20 by the line 2 is a fraction composed of liquid hydrocarbons (generally C 5 to C 10 ) having a boiling point lower than about 150 ° C.
- the main component is a linear saturated aliphatic hydrocarbon having a range, and oxygen-containing compounds such as olefins and alcohols which are by-products of the FT synthesis reaction are included as impurities.
- the crude naphtha fraction is mixed with hydrogen gas, heated to the reaction temperature, supplied to the naphtha fraction hydrotreating reactor 30, and hydrorefined.
- hydrotreating catalyst charged in the naphtha fraction hydrotreating reactor 30 a known hydrotreating catalyst can be used.
- a catalyst similar to the purification catalyst may be used.
- olefins contained in the crude naphtha fraction are converted into saturated hydrocarbons by hydrogenation, and oxygen-containing compounds such as alcohols are converted into hydrocarbons and water by hydrodeoxygenation. And so on.
- the crude naphtha fraction is a hydrocarbon having approximately 10 or less carbon atoms, and as a characteristic thereof, hydroisomerization and hydrocracking hardly occur.
- the crude naphtha fraction is preferably diluted with a purified naphtha fraction and subjected to hydrorefining.
- the reaction temperature in the naphtha fraction hydrotreating reactor 30 is 180 to 400 ° C, preferably 280 to 350 ° C, more preferably 300 to 340 ° C.
- the reaction temperature is the average temperature of the catalyst layer in the naphtha fraction hydrotreating reactor 30.
- the pressure (hydrogen partial pressure) in the naphtha fraction hydrotreating reactor 30 is preferably 0.5 to 12 MPa, and more preferably 1 to 5 MPa. If the pressure is 0.5 MPa or more, the crude naphtha fraction is sufficiently hydrorefined, and if it is 12 MPa or less, the equipment cost for increasing the pressure resistance of the equipment can be suppressed.
- Liquid hourly space velocity in the naphtha fraction hydrotreating reactor 30 is preferably from 0.1 ⁇ 10h -1, more to be 0.3 ⁇ 3.5 h -1 preferable. If LHSV is 0.1 h ⁇ 1 or more, the reactor volume does not need to be excessive, and if it is 10 h ⁇ 1 or less, the crude naphtha fraction is efficiently hydrorefined.
- the hydrogen gas / oil ratio in the naphtha fraction hydrotreating reactor 30 is preferably 50 to 1000 NL / L, and more preferably 70 to 800 NL / L.
- “NL” means the hydrogen capacity (L) in the standard state (0 ° C., 101325 Pa). If the hydrogen gas / oil ratio is 50 NL / L or more, the crude naphtha fraction is sufficiently hydrorefined, and if it is 1000 NL / L or less, a facility for supplying a large amount of hydrogen gas is not required and the operation is continued. Increase in cost can be suppressed.
- the product oil discharged from the naphtha fraction hydrotreating reactor 30 is gas-liquid separated in the gas-liquid separator 40 into a gaseous component mainly composed of unreacted hydrogen gas and liquid hydrocarbons. Gaseous components are recycled to the hydroprocessing reaction, the liquid hydrocarbons are supplied to the naphtha stabilizer 50 via a line 5, C 4 or less gaseous hydrocarbons are removed from the line 8, consisting mainly C 5 ⁇ C 10
- the naphtha fraction is stored in the naphtha tank 70 via the line 9.
- the second rectifying column 60 a plurality of cut points are set according to the hydrocarbon oil to be extracted, and the hydrolysed product of the middle distillate supplied from the middle distillate hydrotreating reactor 32 and the wax distillate hydrogen are used.
- the mixed oil consisting of the hydrocracked product of the wax fraction supplied from the chemical cracking reactor 34 is fractionated.
- the cut points are set to 150 ° C., 250 and 360 ° C.
- a light fraction containing a naphtha fraction is extracted from the line 10 and supplied to the naphtha stabilizer 50 described above, and hydrocarbon gas of C 4 or less is removed.
- the naphtha is stored in the naphtha tank 70.
- a kerosene fraction is extracted from the center of the second rectifying tower 60 through the line 11 and stored in the kerosene tank 72.
- a light oil fraction is extracted from the lower part of the second rectifying column 60 through the line 12 and stored in the light oil tank 74.
- the bottom oil mainly composed of undecomposed wax is extracted by the line 13, recycled to the line 4, and the wax fraction hydrocracking reactor 34 together with the crude wax fraction. To be hydrocracked again.
- the method for producing the hydrocarbon oil of the present invention is not limited to the above-described embodiment, and various modifications and additions can be made without departing from the spirit of the present invention.
- the FT synthetic oil supplied from the FT synthesis reaction apparatus is fractionated into a crude naphtha fraction, a crude middle fraction, and a crude wax fraction in the first rectifying column 20.
- the crude naphtha fraction and the crude middle distillate may be fractionated as one fraction as a crude naphtha / middle fraction.
- the crude naphtha / middle distillate may be subjected to hydrorefining in a single hydrorefining reaction apparatus.
- the light hydrocarbons that become gas at the temperature are cooled and liquefied.
- the light liquid hydrocarbon may be separated from the heavy liquid hydrocarbon that is liquid at the temperature.
- the hydrocracking reactor 34 may be subjected to hydrocracking.
- the hydrogen-purified middle fraction discharged from the middle fraction hydrotreating reaction apparatus 32 and the hydrogen of the wax fraction discharged from the wax fraction hydrocracking reaction apparatus 34 are used.
- the mixture with the pyrolysis product is fractionated in the second rectification column 60, the present invention is not limited to this.
- the intermediate fraction and the hydrocracked product of the wax fraction discharged from the wax fraction hydrocracking reaction apparatus 34 may be fractionated in separate rectification columns.
- a naphtha fraction, a kerosene fraction, and a gas oil fraction were obtained as products, but the kerosene fraction and the gas oil fraction may be recovered as one fraction (intermediate fraction). .
- the carrier was impregnated with an aqueous solution of dichlorotetraammineplatinum (II) in an amount of 0.8% by mass as platinum atoms based on the mass of the carrier, and further impregnated at 120 ° C. for 3 hours.
- the catalyst precursor was obtained by drying.
- the catalyst precursor was calcined.
- a catalyst precursor is charged in a heating furnace, heated to 300 ° C. in an air atmosphere, then heated between 300 and 400 ° C. at a heating rate of 10 ° C./h, and then calcined at 500 ° C. for 1 hour. As a result, a hydrocracking catalyst was obtained.
- the FT synthetic oil obtained by the FT synthesis reaction was fractionated by a rectifying column to obtain a bottom oil (crude wax fraction) of the rectifying column having a boiling point exceeding 360 ° C.
- a bottom oil crude wax fraction
- the carbon distribution was examined by a distillation gas chromatography method, it was in the range of C 22 to C 82 . Hydrocracking was performed using this crude wax fraction as a raw material oil.
- the raw material oil was supplied to the fixed bed flow reactor filled with the hydrocracking catalyst together with hydrogen gas for hydrocracking.
- the hydrocracking product discharged from the reactor was cooled, primarily unreacted hydrogen gas and by the gas-liquid separator to separate the C 4 or less gaseous hydrocarbons, supplying a liquid hydrocarbon in a rectification column Fractionation was carried out at 150 ° C. and 360 ° C. as cut points, and an intermediate oil fraction having a boiling point range of 150 to 360 ° C. and a naphtha fraction having a boiling point lower than 150 ° C. were recovered. Further, all of the bottom oil of the rectifying column was recycled to a line for supplying raw material oil to the reactor.
- the reaction conditions were a reaction pressure (hydrogen gas pressure) of 3.0 MPa, an LHSV of 2.0 h ⁇ 1 , and a hydrogen / oil ratio of 340 NL / L.
- the hydrocracking product discharged from the reactor (before fractional distillation) is analyzed by gas chromatography, and the cracking rate defined by the formula (1) and the middle fraction defined by the formula (2) are analyzed. Selectivity was calculated.
- the reaction temperature was adjusted so that the decomposition rate was 70%. Since the activity of the hydrocracking catalyst decreased with the passage of the operation time, the operation was continued by adjusting the reaction temperature so that the decomposition rate was maintained at 70% in each operation time.
- the operation was stopped after 13,000 hours from the start of operation, and the inside of the reactor was washed with the middle distillate obtained by the above hydrocracking, and the wax fraction in the reactor was removed. Further, the inside of the reactor was purged with nitrogen gas, the reactor was cooled to room temperature and then opened, and the used spent catalyst was withdrawn.
- Example 1 Preparation of regenerated hydrocracking catalyst> (Carbon content measurement process) A sample was taken from the used catalyst obtained in Reference Example, washed thoroughly with hexane, and then dried at 70 ° C. for 2 hours in a vacuum dryer. The carbonaceous material contained in this sample was quantified with a carbon / sulfur analyzer EMIA-920V manufactured by Horiba. As a result, the used catalyst contained 6.9% by mass of carbonaceous material as carbon atoms with respect to its dry total mass. The hydrocarbon content of the used catalyst was calculated to be 10% by mass with respect to the total dry mass of the catalyst from the mass change before and after hexane washing and drying of the sample.
- Example 2 ⁇ Preparation of regenerated hydrocracking catalyst> A regenerated hydrocracking catalyst was obtained in the same manner as in Example 1 except that in the calcining step of “Preparation of regenerated hydrocracking catalyst”, the firing conditions after the temperature increase were set to 500 ° C. for 1 hour. The content of the carbonaceous material in the regenerated hydrocracking catalyst was 0.5% by mass in terms of carbon atoms.
- FIG. 2 shows the change over time of the activity of the regenerated hydrocracking catalyst from the initial operation until the catalyst stabilization period from the start of operation until about 670 hours have elapsed.
- the “activity retention ratio” on the vertical axis in FIG. 2 is an index with the activity at the start of operation of the regenerated hydrocracking catalyst in Comparative Example 1 described later as 100.
- the activity retention rate is calculated by calculating the relative activity using the Arrhenius equation from the reaction temperature for setting the decomposition rate at each operation time to 70%, and the operation of the regenerated hydrocracking catalyst of Comparative Example 1 is started. It was calculated by comparison with the relative activity of time.
- Example 3 ⁇ Preparation of regenerated hydrocracking catalyst> A regenerated hydrocracking catalyst was obtained in the same manner as in Example 1 except that in the firing step of “Preparation of regenerated hydrocracking catalyst”, the firing conditions after the temperature increase were 490 ° C. and 1 hour. The content of the carbonaceous material in the regenerated hydrocracking catalyst was 0.8% by mass in terms of carbon atoms.
- Example 4 Preparation of regenerated hydrocracking catalyst> (First deoiling step) The used catalyst obtained by the reference example was deoiled for 3 hours at 400 ° C. in a nitrogen stream.
- FIG. 2 shows the change over time in the activity of the hydrocracking catalyst from the initial operation until the catalyst stabilization period from the start of operation until about 670 hours have elapsed.
- the “activity retention” on the vertical axis is as described in the second embodiment.
- Example 2 (Comparative Example 2) ⁇ Preparation of regenerated hydrocracking catalyst>
- the regenerated hydrocracking catalyst was prepared in the same manner as in Example 4 except that the calcining conditions after the temperature increase in “Second calcining step” of “Preparation of regenerated hydrotreating catalyst” in Example 4 were 430 ° C. and 1 hour. Obtained.
- the content of the carbonaceous material in the regenerated hydrocracking catalyst was 1.2% by mass in terms of carbon atoms.
- the regenerated hydrocracking catalyst of Comparative Example 1 having a carbonaceous material content of less than 0.05% by mass has a relatively high activity at the start of operation, The decrease in activity is large.
- the regenerated hydrocracking catalyst of Example 2 containing 0.05 to 1% by mass of a carbonaceous material has a carbonaceous material content of less than 0.05% by mass at the start of operation.
- a middle distillate can be obtained in a high yield from a hydrocarbon feedstock containing a wax fraction over a long period of time by a regenerative hydrocracking catalyst advantageous in terms of cost.
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Abstract
Description
分解率(%)=[(被処理ワックス単位質量中の沸点が360℃を超える炭化水素の質量)-(水素化分解生成物単位質量中の沸点が360℃を超える炭化水素の質量)]×100/(被処理ワックス単位質量中の沸点が360℃を超える炭化水素の質量)…(1)
前記分解率が50%未満である場合には、被処理ワックスの水素化分解が不十分であり、中間留分の収率が低下する。一方、分解率が90%を超える場合には、被処理ワックスの水素化分解が過度に進行し、中間留分の沸点範囲の下限を下回る沸点を有する軽質炭化水素の生成が増加し、分解生成物中に占める中間留分の比率が低下するために、中間留分の収率が低下する。
中間留分選択率(%)=[(水素化分解生成物単位質量中の沸点が150~360℃の炭化水素の質量)-(被処理ワックス単位質量中の沸点が150~360℃の炭化水素の質量)]×100/[(被処理ワックス単位質量中の沸点が360℃を超える炭化水素の質量)-(水素化分解生成物単位質量中の沸点が360℃を超える炭化水素の質量)]…(2)
<新規水素化分解触媒の調製>
シリカアルミナのゲルを乾燥質量として30質量%と、粉末状のアルミナ(バインダ)を60質量%と、粉末状のUSYゼオライト(平均粒子径0.4μm、シリカ/アルミナのモル比(アルミナに対するシリカのモル比)32)10質量%を含有する組成物に、水を加えて粘土状に混練を行なって捏和物を調製した。この捏和物を押出成型により直径約1.5mm、長さ約3mmの円柱状に成型した。得られた成型体を120℃で3時間乾燥し、更に空気中、450℃で3時間焼成して担体を得た。
上記により得られた水素化分解触媒を固定床流通式反応器に充填し、水素気流下、340℃で4時間の還元処理を行って触媒を活性化した。
<再生水素化分解触媒の調製>
(炭素分測定工程)
参考例により得た使用済み触媒から一部試料を採取し、ヘキサンにて十分に洗浄した後、減圧乾燥器にて70℃で2時間乾燥した。この試料中に含まれる炭素質物質を堀場製作所社製炭素・硫黄分析装置EMIA-920Vにより定量した。その結果、使用済み触媒はその乾燥全質量に対して、炭素原子として6.9質量%の炭素質物質を含有していた。また、試料のヘキサン洗浄・乾燥の前後における質量変化から、使用済み触媒の炭化水素含有量は触媒の乾燥全質量に対して10質量%と算出された。
使用済み触媒に対して、窒素気流中400℃にて3時間、脱油処理を行なった。
脱油した使用済み触媒を加熱炉内に仕込み、300℃まで昇温し、その後300~400℃の間を10℃/hの昇温速度で昇温し、その後520℃にて1.5時間焼成することにより、再生水素化分解触媒を得た。得られた再生水素化分解触媒中の炭素質物質を前述の炭素・硫黄分析装置により定量した結果、触媒の全質量を基準とし、炭素原子換算で0.05質量%であった。
上記により得た再生水素化分解触媒を反応器に充填した以外は、参考例における「新規水素化精製触媒による炭化水素油の製造」と同様にしてFT合成油由来の粗ワックス留分の炭化水素原料油の水素化分解を行なった。反応温度を分解率が70%となる温度に設定した。また、運転時間の経過と共に触媒の活性が低下するので、分解率が70%を維持するように、反応温度を高めていった。運転開始後2000時間経過した時点(安定期)における分解率を70%とする反応温度は326℃であった。また、この時の、中間留分選択率は74質量%であった。結果を表1に示す。なお、中間留分収率は、分解率(70%)に中間留分選択率を乗ずることにより算出される。
<再生水素化分解触媒の調製>
「再生水素化分解触媒の調製」の焼成工程において、昇温後の焼成条件を500℃、1時間とした以外は、実施例1と同様にして再生水素化分解触媒を得た。この再生水素化分解触媒中の炭素質物質の含有量は炭素原子換算で0.5質量%であった。
上記により得られた再生水素化分解触媒を用いた以外は、実施例1と同様にしてFT合成油由来の粗ワックス留分の水素化分解を行なった。運転時間2000時間経過時における、分解率を70%とするための反応温度は325℃であり、この時の中間留分選択率は76質量%であった。結果を表1に示す。
<再生水素化分解触媒の調製>
「再生水素化分解触媒の調製」の焼成工程において、昇温後の焼成条件を490℃、1時間とした以外は、実施例1と同様にして再生水素化分解触媒を得た。この再生水素化分解触媒中の炭素質物質の含有量は炭素原子換算で0.8質量%であった。
上記により得られた水素化分解触媒を用いた以外は、実施例1と同様にしてFT合成油由来の粗ワックス留分の水素化分解を行なった。運転時間2000時間経過時における、分解率を70%とするための反応温度は333℃であり、この時の中間留分選択率は77質量%であった。結果を表1に示す。
<再生水素化分解触媒の調製>
(第1脱油工程)
参考例により得た使用済み触媒に対して、窒素気流中400℃にて3時間、脱油処理を行なった。
脱油した使用済み触媒を加熱炉内に仕込み、空気雰囲気下で、300℃まで昇温し、その後300~400℃の間を10℃/hの昇温速度で昇温し、その後580℃にて2時間焼成することにより、予備再生触媒を得た。得られた予備再生触媒中の炭素質物質を定量した結果、炭素原子が検出されなかった(炭素原子換算含有量が0.02質量%以下)。
参考例の「新規水素化分解触媒による炭化水素油の製造」において得られた中間留分の炭化水素油に上記予備再生触媒を浸漬した。
前記予備再生触媒を中間留分の炭化水素油中より引き上げ、窒素気流中400℃にて3時間、脱油処理を行なった。
第2脱油工程を経た予備再生触媒を、空気雰囲気下で、第1焼成工程における昇温条件と同一の条件で昇温後、450℃にて0.8時間焼成して再生水素化分解触媒を得た。この再生水素化分解触媒中の炭素質物質の含有量は炭素原子換算で0.2質量%であった。
上記により得られた再生水素化分解触媒を用いた以外は、実施例1と同様にしてFT合成油由来の粗ワックス留分の水素化分解を行なった。運転時間2000時間時点での、分解率を70%とする反応温度は325℃であり、この時の中間留分選択率は75質量%であった。結果を表2に示す。
<再生水素化分解触媒の調製>
実施例4の「再生水素化精製触媒の調製」の「第1焼成工程」で得られた触媒(予備再生触媒)をそのまま再生水素化分解触媒とした。前述のように、この再生水素化分解触媒中には炭素質物質が検出されなかった(炭素原子換算含有量が0.02質量%以下)。
上記により得られた再生水素化分解触媒を用いた以外は、実施例1と同様にしてFT合成油由来の粗ワックス留分の水素化分解を行なった。運転時間2000時間経過時における、分解率を70%とするための反応温度は331℃であり、この時の中間留分選択率は68質量%であった。結果を表1に示す。
<再生水素化分解触媒の調製>
実施例4の「再生水素化精製触媒の調製」の「第2焼成工程」における昇温後の焼成条件を430℃、1時間とした以外は実施例4と同様にして再生水素化分解触媒を得た。この再生水素化分解触媒中の炭素質物質の含有量は、炭素原子換算にて1.2質量%であった。
上記により得られた再生水素化分解触媒を用いた以外は、実施例1と同様にしてFT合成油由来の粗ワックス留分の水素化分解を行なった。運転時間2000時間経過時における、分解率を70%とするための反応温度は340℃であり、その時の中間留分選択率は73質量%であった。結果を表2に示す。
Claims (6)
- ゼオライトと固体酸性を有する非晶性複合金属酸化物とを含む担体と、前記担体に担持された周期表第8族~第10族の貴金属から選択される少なくとも一種の活性金属と、を含む使用済み水素化分解触媒を再生してなり、
触媒の全質量を基準とし、炭素原子換算で0.05~1質量%の炭素質物質を含有する、再生水素化分解触媒。 - 前記ゼオライトが超安定Y型ゼオライトである、請求項1記載の再生水素化分解触媒。
- 前記非晶性複合金属酸化物がシリカアルミナ、アルミナボリア及びシリカジルコニアから選択される少なくとも一種である、請求項1又は2に記載の再生水素化分解触媒。
- 前記活性金属が白金である、請求項1~3のいずれか一項記載の再生水素化分解触媒。
- 分子状水素の共存下、沸点が360℃を超える直鎖状脂肪族炭化水素を70質量%以上含む原料油を、請求項1~4のいずれか一項記載の水素化分解触媒に接触させる、炭化水素油の製造方法。
- 前記原料油がフィッシャー・トロプシュ合成反応により得られる合成油である、請求項5記載の炭化水素油の製造方法。
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CN2012800154920A CN103459023A (zh) | 2011-03-31 | 2012-03-26 | 再生加氢裂化催化剂及烃油的制造方法 |
US14/008,149 US9266099B2 (en) | 2011-03-31 | 2012-03-26 | Regenerated hydrocracking catalyst and method for producing a hydrocarbon oil |
EA201391431A EA025181B1 (ru) | 2011-03-31 | 2012-03-26 | Регенерированный катализатор гидрокрекинга и способ изготовления углеводородного масла |
CA2831767A CA2831767A1 (en) | 2011-03-31 | 2012-03-26 | Regenerated hydrocracking catalyst and method for producing a hydrocarbon oil |
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AU2012233957A AU2012233957A1 (en) | 2011-03-31 | 2012-03-26 | Regenerated hydrocracking catalyst and method for producing a hydrocarbon oil |
AP2013007199A AP2013007199A0 (en) | 2011-03-31 | 2012-03-26 | Regenerated hydro cracking catalyst and method forproducing a hydrocarbon oil |
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US9475036B2 (en) | 2011-03-31 | 2016-10-25 | Japan Oil, Gas And Metals National Corporation | Hydrogenation refining catalyst and method for producing a hydrocarbon oil |
CN106669710A (zh) * | 2015-11-11 | 2017-05-17 | 中国石油化工股份有限公司 | 一种催化柴油加氢裂化催化剂的再生方法 |
RU2745607C2 (ru) * | 2016-09-12 | 2021-03-29 | Чайна Петролеум Энд Кемикал Корпорейшен | Катализатор гидрирования, его получение и применение |
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CN111100697A (zh) * | 2018-10-29 | 2020-05-05 | 中国石油化工股份有限公司 | 一种石蜡基柴油的加氢裂化方法 |
KR102074806B1 (ko) * | 2019-11-29 | 2020-02-10 | 한국화학연구원 | 경질올레핀 제조용 촉매, 이의 제조방법, 및 이를 이용하여 경질올레핀을 제조하는 방법 |
FR3138051A1 (fr) | 2022-07-22 | 2024-01-26 | IFP Energies Nouvelles | Procédé de régénération d’un catalyseur d’hydrocraquage à base de zéolithe et son utilisation dans un procédé d’hydrocraquage. |
FR3138052A1 (fr) | 2022-07-22 | 2024-01-26 | IFP Energies Nouvelles | Procédé de régénération comprenant au moins deux étapes d’un catalyseur d’hydrocraquage à base de zéolithe et son utilisation dans un procédé d’hydrocraquage. |
FR3138053A1 (fr) | 2022-07-22 | 2024-01-26 | IFP Energies Nouvelles | Procédé de régénération comprenant une étape de régénération, une étape de réjuvénation et une étape de calcination d’un catalyseur d’hydrocraquage à base de zéolithe et son utilisation dans un procédé d’hydrocraquage. |
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- 2012-03-26 BR BR112013025277A patent/BR112013025277A2/pt not_active IP Right Cessation
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- 2012-03-26 AU AU2012233957A patent/AU2012233957A1/en not_active Abandoned
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- 2012-03-26 EA EA201391431A patent/EA025181B1/ru not_active IP Right Cessation
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US9475036B2 (en) | 2011-03-31 | 2016-10-25 | Japan Oil, Gas And Metals National Corporation | Hydrogenation refining catalyst and method for producing a hydrocarbon oil |
CN106669710A (zh) * | 2015-11-11 | 2017-05-17 | 中国石油化工股份有限公司 | 一种催化柴油加氢裂化催化剂的再生方法 |
CN106669710B (zh) * | 2015-11-11 | 2019-02-22 | 中国石油化工股份有限公司 | 一种催化柴油加氢裂化催化剂的再生方法 |
RU2745607C2 (ru) * | 2016-09-12 | 2021-03-29 | Чайна Петролеум Энд Кемикал Корпорейшен | Катализатор гидрирования, его получение и применение |
US11161105B2 (en) | 2016-09-12 | 2021-11-02 | China Petroleum & Chemical Corporation | Hydrogenation catalyst, its production and application thereof |
Also Published As
Publication number | Publication date |
---|---|
US20140083907A1 (en) | 2014-03-27 |
EA025181B1 (ru) | 2016-11-30 |
JP2012213714A (ja) | 2012-11-08 |
EA201391431A1 (ru) | 2014-02-28 |
US9266099B2 (en) | 2016-02-23 |
AU2012233957A1 (en) | 2013-10-24 |
ZA201307564B (en) | 2014-07-30 |
EP2692434A4 (en) | 2014-11-05 |
CN103459023A (zh) | 2013-12-18 |
CA2831767A1 (en) | 2012-10-04 |
JP5660957B2 (ja) | 2015-01-28 |
MY178436A (en) | 2020-10-13 |
BR112013025277A2 (pt) | 2016-12-13 |
AP2013007199A0 (en) | 2013-10-31 |
EP2692434A1 (en) | 2014-02-05 |
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