CN1814711A - Magnetism separate method of flow contact decomposing catalyzer - Google Patents

Magnetism separate method of flow contact decomposing catalyzer Download PDF

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Publication number
CN1814711A
CN1814711A CNA2005101216216A CN200510121621A CN1814711A CN 1814711 A CN1814711 A CN 1814711A CN A2005101216216 A CNA2005101216216 A CN A2005101216216A CN 200510121621 A CN200510121621 A CN 200510121621A CN 1814711 A CN1814711 A CN 1814711A
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catalyzer
magnetic
catalyst
amount
thing
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CNA2005101216216A
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CN1814711B (en
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迫田尚夫
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Japan Petroleum Energy Center JPEC
Eneos Corp
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Petroleum Energy Center PEC
Nippon Oil Corp
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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
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/20—Regeneration or reactivation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • 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
    • C10G11/00—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G11/14—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid catalysts
    • C10G11/18—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid catalysts according to the "fluidised-bed" technique
    • 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
    • C10G32/00—Refining of hydrocarbon oils by electric or magnetic means, by irradiation, or by using microorganisms
    • C10G32/02—Refining of hydrocarbon oils by electric or magnetic means, by irradiation, or by using microorganisms by electric or magnetic means

Abstract

To provide a method for reducing the amount of waste of equilibrium catalysts by increasing the amount of recycling catalysts through improving the separation efficiency of a device for the magnetic separation of catalysts for fluid catalytic cracking. A method for magnetic separation of catalysts for fluid catalytic cracking enables the introduction of the catalysts into a magnetic separation apparatus after the water content of the catalyst taken out from a fluid catalytic cracking apparatus is adjusted to 5 mass% or lower in a fluid catalytic cracking process provided with the magnetic separation apparatus.

Description

The magnetism separate method of flow contact decomposing catalyzer
Technical field
The present invention relates in the mobile contact decomposition course of heavy crude class the magnetism separate method of the catalyzer of from the contact decomposer that flows, discharging with magnetic separating device.
Background technology
It is to be the decomposition that hydro carbons contacts with catalyzer by oil that the contact of flowing is decomposed, and obtains the method for resultants such as gasoline, liquefied petroleum gas (LPG), raw material for alkylation, middle runnings mixture.
In recent years, because environmental problem or owing to utilize degree easily, the needs that have smaller or equal to the hydro carbons of the boiling point fraction of light oil relatively increase, and how mink cell focus being changed into lightweight oil becomes important problem.Wherein, a kind of as the mink cell focus treating processes, the importance of decomposing as the mobile contact of raw material with the heavy crude class increases day by day.
Under the situation that the mobile contact of carrying out the heavy crude class is decomposed, the phenomenon of metal deposition on catalyzer of the Ni-V-Fe that contains in the discovery crude oil, copper etc. is remarkable especially.Since these metals from crude oil or with carry contacting of storage and treatment unit, common organometallic compound based on porphyrin ring structure exists, and at high temperature contacts decomposition with catalyzer, metal deposition is on catalyzer.
These metals not only reduce activity of such catalysts, and reduce selectivity of catalyst.It is the function that these metals have hydrogenation, dehydrogenation, under the reaction conditions that the contact of flowing is decomposed, promote the dehydrogenation reaction of hydro carbons, its result increases the not preferred hydrogen and burnt growing amount as resultant, and the growing amount of preferred liquefied petroleum gas (LPG), gasoline, coal-diesel oil reduces.
For fear of the reduction of such catalyst activity and optionally reduction, in the mobile contact of metal content mink cell focus how or Residual oil is decomposed, usually adopt regular or constant discharge with the part of the catalyzer in the circulating system, keep certain active method with the raw catalyst exchange, but, catalyzer must be discharged in a large number, and cost is increased.In addition, be discharged from the discarded of catalyzer (to call equilibrium catalyst in the following text), owing to become industrial waste, it is handled has more increased cost.
Catalyzer has usually from the particle diameter of 30-150 micron, but by its strength degradation of use in reaction unit, the residence time in device is long more, and catalyst particle size is just more little.Its result is the long catalyzer of residence time distribution in device, particle diameter increases at the ratio smaller or equal to the catalyzer of 30 microns minimum particle diameter, owing to dispersing outside device or sneaking in the undecomposed oil, the loss of the catalyzer in the generation device or generation catalyzer are sneaked into the medium problem of C heavy oil.And wherein the particle diameter of so-called catalyzer is to use 9 kinds of different strainers of mesh size, the particle diameter that goes out from the distributed computation of each particle diameter.
Ways of addressing this issue, known have use magnetic separating device that equilibrium catalyst is separated into since the metal of the contained nickel of the heavy crude class of stock oil, vanadium etc. deposit in a large number become have magnetic few non-the magnetic catalyzer that does not have magnetic of magnetic catalyzer and metal deposition, non-magnetic catalyzer returns the method (for example, referring to Patent Document 1 and 2) that the contact decomposer that flows re-uses after regeneration.
Confirmed that using the method for above-mentioned magnetic separating device separating catalyst is effective means, but, make in this way, carry out owing to a large amount of depositions of metals such as nickel, vanadium become have magnetic magnetic catalyzer and metal deposition few do not have non-the magnetic catalyst separating of magnetic the time, separation efficiency is not high, if the contact degrading activity of non-the magnetic catalyzer of considering particularly that regeneration uses is compared relatively poor with raw catalyst, owing to can not be increased in non-the amount of magnetic catalyzer in the magnetic separating device, existence can not reduce the problem of discarded equilibrium catalyst amount so.
Patent documentation 1 special public clear 63-37835 communique
Patent documentation 2 special public clear 63-37156 communiques
Summary of the invention
The objective of the invention is further to improve the separation efficiency of flow contact decomposing catalyzer in magnetic separating device, its result is by increasing the discarded amount that the amount of using catalyzer reduces equilibrium catalyst that is reproduced.Another object of the present invention is by improving separation efficiency, reduces particle diameter in the catalyzer that regeneration uses in the ratio example smaller or equal to 30 microns minimum particle size of catalyst.
The inventor etc. found that by further investigation, in having the mobile contact decomposition course of magnetic separating device, the catalyzer of discharging from the contact decomposer that flows carries out magnetic when separating, the water-content of equilibrium catalyst is adjusted to smaller or equal to 5 quality %, the separation efficiency of catalyzer can significantly improve, thereby has finished the present invention.
Promptly the present invention relates to the magnetism separate method of flow contact decomposing catalyzer, it is characterized in that in having the mobile contact decomposition course of magnetic separating device, the water-content that will contact the catalyzer of decomposer discharge from flowing is adjusted to smaller or equal to behind the 5 quality %, imports magnetic separating device again.
Below, explain the present invention.
Method of the present invention is applicable to the mobile contact decomposition course with magnetic separating device.General mobile contact decomposition course with magnetic separating device, at first be that the heavy crude class contacts with the catalyzer of maintenance flow state and decomposes in the contact decomposer that flows, after this, resultant, unreacting material and the mixture of catalysts of decomposing are handled the major part of removing decomposition product and unreacted reactant by carrying out stripping.The catalyzer that adheres to charcoal and a part of heavy hydrocarbon is transported in the magnetic separating device after the stripping zone discharge.In magnetic separating device, be separated into a large amount of metal refinings the magnetic thing non-the magnetic catalyzer of non-magnetic thing of magnetic catalyzer and a small amount of metal refining, non-magnetic catalyst transport is to regenerator column.In regenerator column,, carry out oxide treatment in order to reduce attached to charcoal on the catalyzer and heavy hydrocarbon.Catalyzer in this regenerator column keeps flow state, carries out burn processing by air 550-850 ℃ of temperature usually.The catalyzer that carries out this oxide treatment is a regenerated catalyst, and this regenerated catalyst returns the reaction zone of aforesaid mobile contact decomposer.
The present invention is by contacting the catalyst transport of decomposer discharge from flowing before magnetic separating device, the water-content of the catalyzer of discharging is adjusted to smaller or equal to behind the 5 quality %, import magnetic separating device again, significantly improving magnetic catalyzer and non-the separation efficiency of magnetic catalyzer.
As the heavy crude class that raw material uses, uses the heavy crude class of the distillation residue branch of heavy metal, bituminous matter etc. such as nickeliferous, vanadium.Specifically, can enumerate the material after air distillation residual oil, underpressure distillation residual oil or their hydrotreatments of crude oil, perhaps its mixture.
The way of contact of raw material and catalyzer under the situation of carrying out in catalyst stream movable bed mode, has and adopt the situation of granules of catalyst with raw material mode of mobile lifting tubular type in pipe, but the present invention is applicable to any way.
Common reaction conditions is adopted in the not special restriction of reaction conditions of flowing and contacting decomposer.For example, can enumerate temperature of reaction is that 480-650 ℃, pressure are 0.1-0.3MPa, catalyst/oil than being 0.1-10 second for 1-20, duration of contact.
Catalyzer can be the catalyzer commonly used that the petroleum-type contact is decomposed, and for example can enumerate zeolite series catalysts etc.In addition, also be not particularly limited, be generally the 5-200 micron, be preferably the 30-150 micron about the particle diameter of catalyzer.
In the present invention, the water-content that will contact the catalyzer (equilibrium catalyst) of decomposer discharge from flowing is adjusted to smaller or equal to behind the 5 quality %, imports magnetic separating device again.More preferably water-content is smaller or equal to 3 quality %, and special preferably water content is smaller or equal to 1 quality %.If water-content greater than 5 quality %, when reducing the temperature of equilibrium catalyst by cooling, is contained in the water vapour cohesion in the equilibrium catalyst, because the particle weight of equilibrium catalyst changes, the separation efficiency variation can not obtain effect of the present invention.
In addition, in the present invention, the temperature that preferably will import the equilibrium catalyst in the magnetic separating device is adjusted to smaller or equal to after 100 ℃, imports magnetic separating device.More preferably the temperature of equilibrium catalyst is smaller or equal to 80 ℃, and the temperature of preferred especially equilibrium catalyst is smaller or equal to 60 ℃.If the temperature of equilibrium catalyst is higher than 100 ℃, under the situation of the temperature that has reduced equilibrium catalyst by cooling, the water vapour that is contained in the equilibrium catalyst will condense, because the particle weight of equilibrium catalyst changes, might reduce separation efficiency.In addition, be not particularly limited, be preferably greater than and equal 10 ℃, more preferably greater than equaling 20 ℃ about lower limit temperature.
The method of prescribed value of determining the amount of moisture of equilibrium catalyst is not particularly limited, and uses any method can.For example, can enumerate the use de-gassing vessel, determine that amount of moisture is the method smaller or equal to 5 quality %.So-called de-gassing vessel is the drum that the outside has the radiator element that is used to dispel the heat, and is by being blown into the exsiccant air to inside, reducing moisture that contains and the device that reduces the equilibrium catalyst temperature from the equilibrium catalyst that the contact decomposer that flows is discharged.In addition, further cool off, also water cooler can be set further for making equilibrium catalyst.
In the present invention,, improve the separation efficiency of magnetic separating device,, can reduce the discarded amount of equilibrium catalyst thus by increasing the catalytic amount that is reproduced use by adjusting the amount of moisture of the equilibrium catalyst that imports magnetic separating device.
Separation efficiency among the present invention is meant, the ratio that is reproduced the catalyzer relative equilibrium catalyzer that uses is during as certain value, poor, the specific surface area of the metal deposition amount of depleted that magnetic catalyzer and regeneration uses non-magnetic catalyzer poor, according to the poor activity of little active testing (MAT).
For example, the separation efficiency of nickel, available depleted that magnetic catalyzer and regeneration uses non-magnetic catalyzer be deposited on nickel on the granules of catalyst many ratio of magnetic thing and few non-magnetic thing calculate.Therefore the metal deposition scale with non-the metal deposition amount of magnetic thing/magnetic thing shows, this value is under 1.0 the situation, to represent can not separate fully, and this value is more little, and separation efficiency is high more.
In addition, the surface-area described in the application is the BET specific surface area of measuring with the BET method.Surface-area is big more, and activity of such catalysts is just high more.And the MAT described in the application is with the fluid cracking catalyst (FLUID CRACKING CATALYST BY MICROACTIVITYTEST) of ASTM D-3907[by little active testing] definition, this numerical value is big more, and activity of such catalysts is just high more.
As previously mentioned,, amount of moisture is adjusted to smaller or equal to behind the 5 quality %, imported magnetic separating device from the catalyzer that the contact decomposer that flows is discharged.
So-called magnetic separating device, be poor according to the susceptibility of granules of catalyst, granules of catalyst can be separated into continuously on granules of catalyst deposition Ni-V-Fe and copper many few non-the magnetic separator of magnetic thing of magnetic thing and metal deposition amount, the magnetic separator of preferred especially high-gradient.
The magnetic separator of described high-gradient is in the space, upfield ferromagnetic weighting material to be set uniformly, by around weighting material, to produce common 200 * 10 3-20000 * 10 3Gauss/cm 2High magnetic field gradients, be designed on the surface of weighting material magnetic strength magnetic or paramagnetic molecule the magnetic thing, from non-the weak paramagnetism molecule or the isolated magnetic separator of diamagnetism molecule of magnetic thing.As the example of High-gradient Magnetic separating machine, can enumerate Metso Minerals society and make the HGMS that sells.
And the weight ratio of magnetic thing and non-magnetic thing is preferably 1: 9-9: 1 scope, and more preferably 1: 9-5: 5 scope.
Weighting material with strong magnetic thing production is netted usually, if strong magnetic thing does not have particular requirement to its material, for example, can enumerate the expanded metal produced with stainless steel etc.
The netting twine diameter of gauze packing is generally the 10-1000 micron, is preferably the 50-700 micron.In addition, thereby processed in order to make granules of catalyst pass through weighting material, the mesh of weighting material is preferably 3-80 purpose scope, more preferably 5-50 purpose scope usually.If mesh is less than 80 orders, non-magnetic thing is mechanically stayed, in addition, if greater than 3 orders, not through weighting material effective the particle increase of magnetic treatment not preferred yet.Gauze packing uses more than or equal to a layer laminate, according to circumstances, can put into space bar between gauze packing, vacates certain interval.
It is that catalyzer and conveyance fluid are undertaken by the magnetic field space of magnetic separator together that magnetic separates.If conveyance fluid is not particularly limited without baneful influence catalyzer, but consider, use air, nitrogen or contain their mixture from economy, security aspect.
Processing parameter during the operation of High-gradient Magnetic separating machine, magneticstrength, field gradient, granule density, conveyance fluid linear velocity etc. are arranged, according to the kind of catalyst particle size, metal refining and state and target separation of level, separation efficiency etc., change processing parameter to optimum value.
Magneticstrength is the magneticstrength in the space of weighting material is set, and is generally more than or equal to 1000 Gausses, is preferably more than to equal 3000 Gausses.
Field gradient is the magneticstrength that produces around the weighting material variable quantity with distance, directly keeps confidential relation with the line of gauze packing, and still, the line footpath is more little usually, and magneticstrength is big more.
Granule density is the granules of catalyst concentration in conveyance fluid.Be generally the 0.01-100 grams per liter, be preferably the 0.1-10 grams per liter.
In addition, the conveyance fluid linear velocity is the linear velocity of the conveyance fluid by in the magnetic field space time, changes the linear velocity of conveyance fluid, can significantly change separation of level and separation efficiency.Carry the linear velocity of liquid to be generally the 0.01-50 meter per second, be preferably the 0.1-10 meter per second.If the linear velocity of carrying liquid is less than 0.01 meter per second, non-magnetic thing is mechanically stayed, if greater than 50 meter per seconds, the magnetic thing and almost all passes through, and separation of level and separation efficiency are all impracticable.
Will be in magnetic separating device isolating non-magnetic catalyzer is sent into regenerator column, the magnetic catalyzer and goes out of use.Therefore, with the raw catalyst of depleted catalyzer, upward replenish in the place of obstacle by not installing running with amount.In addition,, can never install the suitable place of running obstacle and discharge a part of catalyzer, replenish raw catalyst with its same amount for the activity of such catalysts that remains on the device internal recycle is certain.And the discharge of catalyzer can be carried out continuously, perhaps performance is not being had in the scope of disadvantageous effect, and is also passable by the discontinuous discharge catalyzer in certain interval that is provided with.
The method according to this invention owing to significantly improve the separation efficiency of flow contact decomposing catalyzer at magnetic separating device, so increased the amount of regeneration use catalyzer, has reduced the amount of discarded catalyzer.
In addition, the catalyzer that the metal deposition amount is many, owing to be long catalyzer of residence time in device, particle diameter is at the ratio height smaller or equal to the catalyzer of 30 microns minimum particle diameter, the opposite few catalyzer of metal deposition amount, because the residence time in device is short, so can reduce particle diameter in the catalyzer of regeneration use in ratio smaller or equal to 30 microns.Its result can reduce owing to disperse outside device or sneak in the loss of the device inner catalyst that causes in the undecomposed oil and the C heavy oil and sneak into catalyzer etc.
Embodiment
Below, enumerate embodiment and specifically describe the present invention, still, the present invention is not subjected to the restriction of these embodiment.
Embodiment 1
After the amount of moisture of the catalyzer (equilibrium catalyst) of discharging is adjusted into 1 quality %, temperature and is 30 ℃, carry out separating treatment with the High-gradient Magnetic separating machine.Weighting material in the High-gradient Magnetic separating machine is to use the expanded metal of stainless steel, uses air as conveyance fluid.
To the catalyzer of discharging, magnetic thing, non-magnetic thing, carry out activity rating by metal analysis, surface-area analysis and MAT.It the results are shown in table 1.
As shown in table 1, the amount of moisture of adjusting equilibrium catalyst is that 1 quality %, temperature are 30 ℃ and carry out magnetic and separate, and the result has obtained extraordinary separation efficiency.The metal deposition amount of the regeneration in the return mechanism is used non-magnetic thing is compared with equilibrium catalyst seldom, and because surface-area is big, MAT transformation efficiency height, separation efficiency in magnetic separating device improves, therefore the catalytic amount that uses owing to regeneration increases, so can reduce the discarded amount of equilibrium catalyst greatly.
In addition, compare with equilibrium catalyst, the particle diameter of regeneration is used in the return mechanism non-magnetic thing is little in the ratio smaller or equal to the catalyzer of 30 microns minimum particle diameter, disperses outside device or sneaks in the undecomposed oil and sneak into catalyzer in the catalyst loss in the caused device and C heavy oil so can reduce.
Table 1
Embodiment 2-5
The amount of moisture of the catalyzer (equilibrium catalyst) of discharging is changed into 2 quality %, 3 quality %, 4 quality % and 5 quality %, carry out separating treatment with the High-gradient Magnetic separating machine.Weighting material in the High-gradient Magnetic separating machine is to use the expanded metal of stainless steel, uses air as conveyance fluid.
To the catalyzer of discharging, magnetic thing, non-magnetic thing, carry out metal analysis.It the results are shown in table 2-5.
As show shown in the 2-5, the amount of moisture of equilibrium catalyst is few more, and it is good more to separate.Promptly, the amount of moisture of equilibrium catalyst is few more, compares with equilibrium catalyst, and the metal deposition amount of non-the magnetic thing that turns back to that regeneration in the device uses is also few, therefore owing to having increased the catalytic amount that regeneration is used, so the discarded amount of equilibrium catalyst can reduce greatly.
Table 2
Embodiment 2 Equilibrium catalyst
The magnetic separation condition Treatment temp ℃ amount of moisture quality % magneticstrength kilogauss linear velocity meter per second granules of catalyst concentration grams per liter segregation ratio 100 2.0 12.9 4.2 0.17 the magnetic thing: non-magnetic thing=1: 4
Amount of metal Nickel quality-ppm vanadium quality-ppm The magnetic thing Non-magnetic thing 1820 6040
4080 13010 1270 4280
Separation efficiency nickel vanadium 0.311 0.329
Table 3
Figure A20051012162100101
Table 4
Figure A20051012162100111
Table 5
Figure A20051012162100112
Comparative example 1
Do not adjust the amount of moisture and the treatment temp of embodiment 1 catalyzer, carry out separating treatment being separable under magnetic thing and non-the condition of magnetic thing with the High-gradient Magnetic separating machine.It the results are shown in table 6.
As shown in table 6, under the situation of the amount of moisture of uncomfortable leveling weighing apparatus catalyzer, carry out can not obtaining under the isolating situation of magnetic the separation efficiency of embodiment 1 such degree.
In addition, the particle diameter of the regeneration in equilibrium catalyst and the return mechanism is used non-magnetic thing disperses outside device or to sneak into the reduction effect of the catalyzer of sneaking in the loss of caused device inner catalyst in the undecomposed oil and the C heavy oil etc. little under the situation not too big smaller or equal to the ratio vary of 30 microns minimum particle size of catalyst.
Table 6
Figure A20051012162100121
Comparative example 2
Do not adjust the water-content of the catalyzer among the embodiment 1, treatment temp is adjusted to 30 ℃, under separable magnetic thing and non-the condition of magnetic thing, handle with the High-gradient Magnetic separating machine.Its result shows table 7.
As shown in table 7, the water-content of uncomfortable leveling weighing apparatus catalyzer carries out under the isolating situation of magnetic, even adjust treatment temp, also almost can not obtain the separation efficiency of embodiment 1 degree.
Table 7
Embodiment 6
Using zeolite is flow contact decomposing catalyzer, decompose indicating unit by the contact of flowing and discharge a part of recycling catalyst, certain for holding device inner catalyst amount adds the raw catalyst of magnitude of recruitment on one side, Yi Bian carry out the contact decomposition of air distillation residual oil.In this case, obtain resultant as shown in table 8, need 1 barrel of handling oil to want 309 gram raw catalysts.
After this will flow contact decomposition run device and High-gradient Magnetic separating machine makes up, by the High-gradient Magnetic separating machine catalyzer of discharging is being carried out magnetic thing and non-separating of magnetic thing under the condition identical with embodiment 1, non-magnetic thing returns in the circulating system regeneration and uses.In this case, obtaining the needed raw catalyst amount of essentially identical resultant when not using the High-gradient Magnetic separating machine is that 1 barrel of handling oil is 144 grams.And, under the condition identical, the catalyzer of discharging being divided into magnetic thing and non-magnetic thing by the High-gradient Magnetic separating machine with comparative example 1, non-magnetic thing returns in the circulating system regeneration and uses.In this case, obtain the needed raw catalyst amount of essentially identical resultant when not using the High-gradient Magnetic separating machine and be 1 barrel of needs of handling oil, 210 grams.Therefore, behind the amount of moisture of adjusting equilibrium catalyst, carry out separating treatment with the High-gradient Magnetic separating machine, improving magnetic thing and non-the separation efficiency of magnetic thing, so can increase the catalytic amount that regeneration is used, the result can reduce the usage quantity of raw catalyst and the discarded amount of equilibrium catalyst.
Table 8
The High-gradient Magnetic separating machine is not set The High-gradient Magnetic separating machine is set
The condition of embodiment 1 The condition of comparative example 1
Resultant distributes H2 quality % C1+C2 quality % C3+C4 quality % quality of gasoline % turning oil quality % quality of coke tar % 0.44 2.10 16.81 49.85 24.32 6.48 0.40 1.87 16.99 49.90 24.46 6.38 0.41 1.91 16.82 49.88 24.57 6.41
The discarded amount of equilibrium catalyst gram/bucket 309 144 210

Claims (2)

1. the magnetism separate method of flow contact decomposing catalyzer is characterized in that in having the mobile contact decomposition process of magnetic separating device, and the amount of moisture that will contact the catalyzer of decomposer discharge from flowing is adjusted into smaller or equal to behind the 5 quality %, imports magnetic separating device.
2. by the described magnetism separate method of claim 1, it is characterized in that the catalyst temperature of discharging is adjusted to smaller or equal to after 100 ℃, import magnetic separating device.
CN2005101216216A 2004-12-10 2005-12-09 Magnetism separation method of flow contact decomposing catalyzer Expired - Fee Related CN1814711B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4357229A (en) * 1979-11-01 1982-11-02 Exxon Research And Engineering Co. Catalysts and hydrocarbon treating processes utilizing the same
US4406773A (en) * 1981-05-13 1983-09-27 Ashland Oil, Inc. Magnetic separation of high activity catalyst from low activity catalyst
AU667255B2 (en) * 1993-03-02 1996-03-14 Nippon Oil Company Limited A process for the fluid catalytic cracking of heavy fraction oils
CN1089642C (en) * 1998-06-24 2002-08-28 中国石化集团洛阳石油化工总厂 Magnetic separating machine, separating process and corollary equipment for separating waste catalytic cracking catalyst
CN1405274A (en) * 2002-04-15 2003-03-26 中国石化工程建设公司 Catalyst on-line magnetic treating method of fluidized catalytic cracker for oil refinery

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