CN1045460C - Method for catalytic conversion of petroleum hydrocarbon - Google Patents
Method for catalytic conversion of petroleum hydrocarbon Download PDFInfo
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- CN1045460C CN1045460C CN96100050A CN96100050A CN1045460C CN 1045460 C CN1045460 C CN 1045460C CN 96100050 A CN96100050 A CN 96100050A CN 96100050 A CN96100050 A CN 96100050A CN 1045460 C CN1045460 C CN 1045460C
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Abstract
The present invention relates to a fluidizing and catalyzing conversion method for petroleum hydrocarbon, which is characterized in that a temperature adjusting degassing tank is arranged between a reactor and a regenerator, and a premixing regeneration pipe is connected with the lower part of the regenerator; a catalyst to be regenerated passes through the premixing regeneration pipe firstly, and then, a large amount of hydrogen and a small amount of carbon in coke are burned off to obtain a semi-regenerated catalyst which is conveyed to the dense phase bed of the regenerator; the residual coke is burned off to obtain a hot regenerated catalyst to enter the temperature adjusting degassing tank; after the temperature of the regenerated catalyst is adjusted by steam stripping, the regenerated catalyst returns to the reactor to be used circularly. The present invention is especially suitable for the operated heavy oil fluidizing and catalyzing conversion technology with the catalyst petroleum ratio which is larger than six.
Description
The invention belongs to fluidifying and catalytic convertion process, more particularly, is a kind of the have required agent-oil ratio of regulation and control reaction independently and petroleum hydrocarbon fluidifying and catalytic convertion process of regenerated catalyst temperature.
Fluid catalytic cracking process (being called for short FCC) is the process that refinery improves a kind of heavy oil lighting of the level of crude oil processing.FCC generally includes reaction and regeneration two portions, its main process: hydrocarbon raw material is converted into light Fuel and dry gas such as gasoline, diesel oil, liquefied gas, in conversion process under catalyst action, part heavy aromatics is condensed into sedimentation of coke on catalyzer, forms reclaimable catalyst.By the fluidisation conveying reclaimable catalyst is transported in the revivifier, bubbling air is burnt the coke that is deposited on the catalyzer again, and this process is called catalyst regeneration, and the catalyzer of burning coke is called regenerated catalyst.Regenerated catalyst is carried through fluidisation, and Returning reactor recycles.Catalytic conversion reaction needs the ratio (be called agent-oil ratio) of certain catalyzer to oil, be that catalyzer enters the flow rate of riser tube to entering the ratio of riser tube combined feed total feed (comprising fresh feed and recycle stock) flow rate, by same time inner catalyst internal circulating load and combined feed total feed decision; Cracking reaction institute heat requirement is provided by the high-temperature regenerated catalyst from revivifier.
For the intact catalytic cracking technology that utilizes petroleum resources, many countries to research and develop heavy feed stocks such as handling long residuum, vacuum residuum one after another that divides, this is an important method that improves petroleum resources utilising efficiency and refinery economic benefit.But residual oil carbon residue content height, the cracking reaction coke yield is also high, revivifier burning process liberated heat surpasses the required heat of reaction of reactor, these superfluous heats must manage to take out, and to reduce the temperature of revivifier, prevent because the too high damage equipment of temperature, and avoid superfluous heat to deliver to the raw material reaction district, form excessive temperature, generate deleterious product (excessive generation gas of cracking and coke, and infringement catalyst activity).For this reason, various types of heavy oil fluid catalytic cracking technology have been developed in recent ten years, comprise the residual oil catalytic cracking technology that has the heat-obtaining facility, heavy oil fluid catalytic cracking regeneration techniques as the USP4353812 proposition, a fast fluidized bed (being referred to as high temperature combustion zone) is arranged, after reacted reclaimable catalyst enters high temperature combustion zone, burning air burns the coke major part on the reclaimable catalyst, catalyzer after burning enters catalyst separation zone with flue gas, with catalyst separating, the flue gas of high temperature combustion zone generation and the mixed gases from the catalyst separation zone dense bed are isolated the catalyzer of being carried secretly through cyclonic separator and are entered flue; This regeneration techniques is drawn the thermocatalyst in the catalyst separation zone dense bed in addition, through tube and shell heat exchanger superfluous heat is taken away, and cooled catalyzer returns revivifier, and USP4396531 introduces cooled regenerated catalyst, directly introduces reactor.Above-mentioned heat-obtaining equipment is called external warmer, introduce water vapor in the external warmer usually catalyzer is carried out stripping and control catalyst flow rate, but under this high temperature, catalyzer runs into the serious deactivation that water vapor can cause catalyzer; In addition, turn back to by external warmer in the flue gas of catalyst separation zone dense bed and also contain a large amount of water vapors, also can cause the catalyzer deactivation in the catalyst separation zone dense bed.In addition, the gas in the fast fluidized bed, the back-mixing of solid phase are serious, and the catalyzer that promptly burnt still can return fast fluidized bed, dilutes the concentration of new reclaimable catalyst, play the effect that reduces coke-burning rate.
Two revivifier heavy oil fluid catalytic cracking technology that USP4664778 proposes, principal character is control reaction coke yield and the operation of thermal equilibrium operating method, adopt one, the regeneration of two two-stage regenerator, first revivifier is a conventional regeneration, mainly be to burn the hydrogen in the coke on the regenerated catalyst, second revivifier is a high temperature regeneration, be characterized in owing in first revivifier, the hydrogen in the coke is all burnt, so water that does not almost have the hydrogen atom burning to generate in the flue gas in second revivifier, thereby when having avoided high temperature regeneration because the catalyzer deactivation that the existence of water vapor causes, but its higher regenerated catalyst temperature limits rising agent oil ratio, thereby has limited the depth of conversion of stock oil.At present, the catalytic cracking unit of the more difficult cracked stock oil of many processing, be subjected to the restriction of temperature of reaction and regeneration temperature, the too high dry gas that can produce a large amount of low values of temperature of reaction, regeneration temperature is crossed the low efficient of burning that influences revivifier, therefore can only satisfy the requirement of temperature of reaction and can't improve the needed agent-oil ratio of reaction, thereby make stock oil not reach desired transformation efficiency.
Simply take superfluous heat away in the revivifier and reduce revivifier inner catalyst method of temperature by external warmer or interior heat collector, to the variation of the desired agent-oil ratio of catalytic cracking reaction, be temperature decision fully by catalyzer in reaction institute's heat requirement and the revivifier.If the regenerator temperature height, and the heat one that needs is regularly, has only the internal circulating load that reduces catalyzer, promptly the depressant oil ratio guarantees the balance of heat; And when catalytic cracking reaction requires the rising agent oil ratio, then must reduce the temperature in the revivifier, temperature superelevation otherwise the heat surplus of confession will react.And regeneration temperature reduces the regeneration be unfavorable for catalyzer, if reduce the coke content of regenerated catalyst by prolonging the recovery time, then again can because of catalyzer at high temperature overstand cause the catalyzer deactivation.
For so that to produce light olefins such as propylene be the main purpose product or produce liquefied gas and gasoline is the fluidized catalytic conversion technology of purpose with maximum, comprise CN87105428.0 (calling DCC in the following text) and CN91108424.X (calling MGG in the following text) patented technology, they all are to be raw material with the mink cell focus, and require to operate having under the bigger agent-oil ratio condition than conventional FCC, and existing technology is difficult to meet the demands.
The objective of the invention is to improve existing catalytic conversion technique, provide a kind of and can regulate and control temperature of reaction and needed agent-oil ratio independently, especially be applicable to heavy feed stock and need the fluidized catalytic conversion technology of high agent-oil ratio, to reach the optimum conversion condition of production purpose product.
For achieving the above object, the principal feature of fluidized catalytic process for transforming method of the present invention is to be provided with between reactor and revivifier with the dry gas medium to be become flexible and steam stripped temperature adjustment degassing vessel; Be connected with the pre-mixing regenerating tube in the revivifier bottom, reclaimable catalyst is carried out first step regeneration.The main operational steps of this method comprises:
1 petroleum hydrocarbon raw material contacts with solid acid catalyst in riser tube or fluidized-bed reactor, reacts under cracking conditions, and reaction oil gas is separated with reclaimable catalyst, and isolated oil gas enters separation column and carries out the fractionation cutting.
2 mix in the pre-mixing regenerating tube and burn with oxygen-containing gas with by the reclaimable catalyst that contains coke that reactor comes, and burn the hydrogen of 80-90% in the coke and the carbon of 20-30%, generate half regenerated catalyst and flue gas;
3 half regenerated catalysts that generated by (2) step rise with flue gas, and the efficient cyclone separator that enters in the revivifier separates;
4 separate half regenerated catalyst that obtains by (3) step enters the revivifier dense bed, burns to be deposited on remaining coke on the catalyzer, generates the regenerated catalyst of heat;
5 by (3) step isolated moisture vapor flue gas send into flue or CO burning device separately;
The regenerated catalyst of 6 heat that generated by (3) step enters has telescopic temperature adjustment degassing vessel top, with the catalysis drying gas counter current contact of introducing the reaction generation of (1) step from temperature adjustment degassing vessel bottom, strip the flue gas that regenerated catalyst carries secretly and promptly replace between regenerated catalyst particles and the particle and the intrapore regenerated flue gas of particle with dry gas, the regenerated catalyst behind the stripping directly goes (1) stage reactor to recycle.By regulating the liquid medium evaporating capacity that flows into the temperature adjustment degassing vessel, the regenerated catalyst temperature of control dereaction device.Excessive dry gas that temperature adjustment degassing vessel top is compiled and flue gas mixed gas are delivered to pre-mixing regenerating tube flue or directly deliver to the CO burning chamber, or deliver to CO (carbon monoxide converter) boiler.
Describe the characteristics of the inventive method in detail below in conjunction with accompanying drawing.
Fig. 1 is a process flow diagram of the present invention.
Fig. 2 is a pre-mixing regenerating tube efficient cyclone separator structural representation of the present invention.
As shown in Figure 1, the present invention includes several parts such as riser reactor 1, settlement separator 2, reclaimable catalyst stripper 3, premixed regenerating tube 4, regenerator 5 and temperature adjustment degassing tank 6. The concrete technology flow process is as follows: petroleum hydrocarbon raw material and the temperature adjustment degassing tank 5 of hanging oneself carry out the generation conversion reaction that contacts of temperature controlled regenerated catalyst, heavy raw oil is cracked into needed purpose product, outlet at riser reactor 1 separates reaction oil gas and catalyst through efficient cyclone separator, oil gas flow to FCC main fractionating tower through settlement separator 2 outlets and carries out separation of products, the catalyst that efficient cyclone separator is separated enters reclaimable catalyst stripper 3, behind the water vapour stripping, carry inclined tube 7 and guiding valve to be generated 8 to enter premixed regenerating tube 4 by reclaimable catalyst, here mix with compressed air from air compressor and burn simultaneously, temperature for control premixed regenerating tube bottom, can introduce a certain amount of thermocatalyst (not marking among the figure) by regenerator and in the premixed regenerating tube, the hydrogen burning more than the 80-90% in the coke that is deposited on the catalyst be become steam, the carbon burning of 20-30% becomes carbon monoxide and carbon dioxide, half regenerated catalyst after the premixed regenerating tube burns separates catalyst and steam-laden flue gas with the efficient cyclone separator 9 that the flue gas rising enters in the regenerator, half regenerated catalyst after the separation enters the dense-phase fluidized bed of regenerator 5, burn remaining coke, the flue gas that contains steam and a large amount of carbon monoxide that branches away is sent into separately flue or CO burning device, not with regenerator in contain excess oxygen flue gas mix, avoid the flue gas of the flue gas of oxygen enrichment and rich carbon monoxide to meet and the tail combustion occur. The regenerated catalyst good in regenerator 5 interior regeneration enters temperature adjustment stripping tank 6 tops through flooding stream pipe 10. The dry gas that the reaction zone reaction that flows into via control valve 11 controls produces flows into temperature adjustment stripping pot bottom and regenerated catalyst counter current contacting through 12 distribution of dry gas distributor, strips the flue gas that regenerated catalyst is carried secretly. The flow rate of dry gas will just guarantee that the regenerated catalyst in the temperature adjustment degassing tank shell side is in fluidized state. Regenerated catalyst after dry gas stripping and temperature control enters riser reactor through regenerator sloped tube 13 and regenerated catalyst flow control valve 14, and the regenerated catalyst temperature of dereaction device is to regulate by the evaporating capacity that control enters the liquid medium of temperature adjustment degassing tank. A small amount of superfluous dry gas and can be introduced regenerator 5 internal combustions by stripping flue gas out and fall is preferably introduced the smoke combustion device before the regenerated flue gas waste heat boilers by pipe 15 or is introduced in the flue of premixed regenerating tube, or delivers to the CO boiler. Guiding valve 16 and 17 is controlled respectively the pressure of premixed regenerating tube 4 and regenerator 5, and both pressure are balances.
As shown in Figure 2, cyclone separator 9 outlets 18 of premixed regenerating tube 1 outlet stretch into the thin section of efficient cyclone separator inlet tube 19 and leave certain gap, except the free degree that solves vertical thermal expansion, can also allow indivisible dry flue gas circulation, make both sides pressure that the effect of a natural equilibrium be arranged.
Faujasite or its mixture of the faujasite that the CN87105428 patent that comprises described solid acid catalyst adopts, the faujasite of rare earth ion exchanged, process chemical synthesis stabilization processes are the catalyst of active component, also can be that CN9110 8425.8 ZSM-5, the REY that adopt and the high-Si Y-type molecular sieve that comprises super steady Y are the catalyst of active component, can also be the catalyst that to contain rare-earth five-membered ring silica-rich zeolite, REY and three kinds of zeolites of high silicon Y be active component that CN1085885 A adopts.
The operating condition that described reactor operating condition adopts CN87105428 patented technology or CN91108425.8 patented technology to adopt.
Described premixed regenerating tube 4 is the tubular type equipment that links with regenerator 5, its draw ratio can satisfy under certain condition burns in the coke that is deposited on the reclaimable catalyst 80-90% hydrogen, concrete operating condition: gas phase linear speed 2-5 meter per second, temperature 660-680 ℃, pressure 0.30-0.38MPa.
The operating condition of described regenerator 5: 670-750 ℃ of dense bed temperature, pressure 0.26-0.34MPa.
Described temperature adjustment degassing tank 3 can be the common vertical shell-and-tube steam generator that some groups of sleeve pipes are arranged, and regenerated catalyst and dry gas are walked to overlap interbank, and liquid medium is walked tube side. The effect of this equipment is to take heat away by the vaporization of liquid medium (such as water), to reduce the temperature of catalyst, therefore can be by evaporating capacity control institute's heat-obtaining amount of regulator solution body medium (water) and the regenerated catalyst temperature of dereaction device (riser), so just, the internal circulating load that can regulate easily catalyst under the constant condition of reaction temperature satisfies reaction to the needs of oil ratio. More than each the relationship between quantities satisfy following formula:
Q＝CpM(T1-T2) (I)
In R=M/F (II) formula, Q is the heat that regenerator is supplied with to reactor, and Cp is the specific heat of catalyst, M is the flow rate of catalyst, and T1 is the regenerated catalyst temperature of dereaction device, and T2 is reaction temperature, F is the total flow rate that fresh feed oil adds recycle oil, and R is oil ratio. By following formula as can be known, the regenerated catalyst temperature T1 of catalyst flow rate M and dereaction device can control independently, makes it to satisfy the demand of reaction heat, can satisfy again the needs to oil ratio, to reach needed conversion level.
Advantage of the present invention:
(1) renovation process of the present invention is provided with the temperature adjustment degassing vessel, utilize the vaporization of liquid medium (as water) to take the temperature that heat reduces regenerated catalyst away, therefore can control the regenerated catalyst temperature of taking heat away and transporting to reactor by the evaporating capacity of regulator solution body medium (water).So just, the internal circulating load of conditioned reaction temperature and catalyzer independently of each other to satisfy the agent-oil ratio of reaction needed, reaches needed depth of conversion.
(2) Technologies such as existing FCC, MGG, DCC, regenerated catalyst all is to be delivered directly to reactor from revivifier, and regenerated catalyst will be carried more flue gas secretly and enter reactor like this, and about regenerated catalyst per ton is brought 1 cubic metre flue gas into.For a year treatment capacity be 600,000 tons device, by recycle ratio 0.4, agent-oil ratio 9, the catalyst recirculation amount be 945 tons/time, the flue gas that so per hour takes reactor to is 945 cubic metres, 23.6 cubic metres oxygen (by 2.5%) is wherein arranged, these oxygen more than 500 ℃ will with hydro carbons generation oxidizing reaction.Regenerated catalyst of the present invention carries out stripping with the dry gas that the cracking reaction of device own produces in the temperature adjustment degassing vessel, make between the regenerated catalyst particles and the intrapore regenerated flue gas of particle is replaced by dry gas, these lighter hydrocarbons at first contact with the regenerated catalyst of heat, and the so-called poisoning of catalyst phenomenon that heavy metal nickel, the vanadium that is deposited on the regenerated catalyst caused has passivation; Simultaneously, catalyzer is brought the dry gas in the reactive system into, hydrogen wherein generates the conjugated diene that is easy to be condensed into coke restraining effect, and the excess oxygen in the regenerated flue gas has stripped, the reaction oxidized to hydro carbons in reactive system do not had, thereby reduced the loss of hydro carbons in the reaction process, and the non-hydrocarbon content reduction in the dry gas, also help the utilization of dry gas; Remove most flue gases simultaneously and also can improve catalyst density and pressure reduction in the temperature adjustment degassing vessel, and then improve regenerated catalyst round-robin impellent, guarantee effective control of catalyst recirculation amount.
(3) owing in the temperature adjustment degassing vessel, remove the contained flue gas of regenerated catalyst that comes from the revivifier fluidized-bed, thereby can reduce the amount of inert gas that catalyzer is brought reactor into, reduce the gas compressor load with dry gas.
(4) owing to adopted the pre-mixing regenerating tube, make reclaimable catalyst at first in the pre-mixing regenerating tube, generate water vapour to the hydrogen burning of 80-90% in the coke that is deposited on the catalyzer, the carbon burning of 20-30% becomes carbon monoxide and carbonic acid gas, then these half regenerated catalysts and steam-laden flue gas, separate through efficient cyclone separator, steam-laden flue gas is discharged separately, water vapour content significantly reduces in the revivifier like this, thereby has avoided the particularly deactivation of catalyzer in regenerative process of hydrothermal stability difference of catalyzer; And flue gas discharges separately, avoids the flue gas of the flue gas of oxygen enrichment and rich carbon monoxide to meet taking place burn equipment in the bad revivifier of tail again.
Owing to have an above advantage, therefore renovation process of the present invention is specially adapted to adopt and comprises wax oil and mix part vacuum residuum or all the mink cell focus of long residuums is a raw material, requires agent-oil ratio to react in the fluidized catalytic conversion of operation 6 or more.
Further describe characteristics of the present invention below by example.
Example
This example provides the test-results by the renovation process of method of the present invention and routine, and test is to carry out at identical MGG commerical test device, is raw material with the long residuum, adopts the catalyzer of CN91108424.X patent.
1. adopt conventional method: 530 ℃ of temperature of reaction, reaction pressure 0.2MPa, 700 ℃ of regeneration temperatures, regeneration pressure 0.22MPa, agent-oil ratio is 6, transformation efficiency is 58.9% with this understanding
2. according to method of the present invention: temperature of reaction, reaction pressure, regeneration temperature, regeneration pressure are all identical with ordinary method, for year treatment capacity be 400,000 tons catalytic conversion of heavy oil device, the temperature adjustment degassing vessel must be taken the heat of 16.2MKJ away, promptly approximately per hour produce 8.1 tons of water vapors approximately, the regenerated catalyst temperature of dereaction device is cooled to 663 ℃, react about agent-oil ratio and can bring up to 9, transformation efficiency brings up to 76.9%.
Stock oil character, catalyst property and operational condition and product distribute see Table 1 respectively, table 2, table 3.As shown in Table 3, under same materials, same catalyst and operational conditions such as temperature of reaction, reaction pressure all keep identical condition, method of the present invention is compared with routine techniques, when agent-oil ratio brings up to 9 by 6, per pass conversion has improved 18 units, gasoline yield has improved 5.8 units, liquefied gas yields and has improved 6.8 units, and three carbon, four olefin yields have improved 2.7 and 1.9 units respectively.
Table 1 stock oil character density (20 ℃), kg/m
3891.3 kinematic viscosity, mm
2/ s50 ℃ of 226.3100 ℃ of 22.88 zero pour, ℃ 41 aniline points, ℃＞105 carbon residues, W% 4.5 bromine valencys, gBr/100ml 2.5 sulphur contents, W% 0.14 nitrogen content, W% 0.20 carbon content, W% 86.30 hydrogen richnesss, W% 12.75 heavy metal content, PPMNi 5.5Fe 4.2Cu＜0.1V＜0.1 boiling range, ℃ initial boiling point 2865% 35510% 37430% 443
Table 2 catalyst property chemical constitution, fresh dose of poiser aluminum oxide of W% 41.6 sodium oxides 0.24 sulfate radical 0.90 ferric oxide 0.33 apparent density, kg/m
3730 pore volumes, ml/g 0.35 specific surface area, M
2/ g 198 abrasion index, %/hr 1.3 micro-activities, (800 ℃, 4hr) 76.0 71.0 nickel contaminations, PPM 2400 size compositions, W%＜40 um, 1.9 0.00-84 um, 40.6 34.90-113 um, 66.3 74.00-160 um 90.4 96.0
Main operational condition of table 3 and product distribute
| The scheme explanation | Conventional regeneration (one way) | The present invention | |
| One way | Full freshening | ||
| Reaction pressure, the MPa regeneration pressure, the MPa temperature of reaction, ℃ revivifier dense bed temperature, ℃ pre-mixing regenerating tube temperature, ℃ temperature adjustment degassing vessel temperature, ℃ pre-mixing regenerating tube gas phase linear speed, M/S regenerator carbon containing recycle ratio agent-oil ratio transformation efficiency W% gasoline yield W% three carbon, wherein three carbon olefins, four carbon olefin temperature adjustment degassing vessel flue gas analyses (doing) of four carbon lighter hydrocarbons productive rate W%, V% CO 2CO O 2Regenerator flue gas is analyzed (doing), V% CO 2CO O 2 | 0.20 0.22 530 700 0.1 0 6 58.9 2.4 17.2 5.7 5.7 | 0.20 0.22 530 700 670 663 2.68 0.1 0 9 76.9 39.2 25.0 8.4 7.6 5.8 11.3 0.68 4.8 3.2 2.5 | 0.20 0.22 530 700 670 668 3.14 0.1 0.3 9 84.19 43.94 25.56 8.92 10.31 |
Claims (9)
1. a method for catalytic conversion of petroleum hydrocarbon comprises reaction and regeneration section, it is characterized in that being provided with the temperature adjustment degassing vessel and be connected with the pre-mixing regenerating tube in the revivifier bottom between reactor and revivifier, and its operation steps comprises:
(1) petroleum hydrocarbon raw material contacts with solid acid catalyst in riser tube or fluidized-bed reactor, reacts under cracking conditions, and reaction oil gas is separated with reclaimable catalyst, and isolated oil gas enters separation column and carries out the fractionation cutting.
(2) give birth to catalyzer in mixing of pre-mixing regenerating tube and burning with oxygen-containing gas with by the spy who contains coke that reactor comes, burn the hydrogen of 80～90% in the coke and 20～30% carbon, generate half regenerated catalyst and flue gas;
(3) half regenerated catalyst that is generated by (2) step rises with flue gas, and the efficient cyclone separator that enters in the revivifier separates;
(4) separate half regenerated catalyst that obtains by (3) step and flow to the revivifier dense bed, burn residual coke on the deposited catalyst, generate the regenerated catalyst of heat;
(5) send into flue or CO burning device separately by the flue gas of isolated moisture vapor of (3) step;
(6) regenerated catalyst of the heat that is generated by (4) step flows into the top with telescopic temperature adjustment degassing vessel from revivifier, with the catalysis drying gas counter current contact of at the bottom of jar, introducing the reaction generation of (1) step, stripping removes the flue gas that regenerated catalyst is carried secretly, and the regenerated catalyst behind the stripping directly goes (1) stage reactor to recycle.
2. in accordance with the method for claim 1, it is characterized in that described solid acid catalyst of (1) step adopts ZSM-5, REY and comprises the high-Si Y-type molecular sieve of super steady Y or contain the catalyzer of rare-earth five-membered ring supersiliceous zeolite, REY and three kinds of zeolite activity components of high silicon Y.
3. in accordance with the method for claim 1, the length-to-diameter ratio that it is characterized in that described pre-mixing regenerating tube should satisfy in the coke of burning on the reclaimable catalyst 80～90% hydrogen, operational condition: gas phase linear speed 2～5 meter per seconds, 660～680 ℃ of temperature, pressure 0.30～0.38Mpa.
4. in accordance with the method for claim 1, the operational condition that it is characterized in that revivifier is: 670～750 ℃ of dense bed temperature, pressure 0.2～0.34Mpa.
5. in accordance with the method for claim 1, it is characterized in that the temperature adjustment degassing vessel is the vapour generator of shell-and-tube, regenerated catalyst and dry gas are walked interbank, and liquid medium is walked tube side.
6. in accordance with the method for claim 1, the temperature that it is characterized in that the regenerated catalyst that step (6) dereaction device recycles is regulated by the evaporating capacity of the liquid medium of control injection degassing vessel.
7. in accordance with the method for claim 1, the liquid medium that it is characterized in that injecting the temperature adjustment degassing vessel is a water.
8. in accordance with the method for claim 1, it is characterized in that step (6) introduces the flow rate of the dry gas of temperature adjustment degassing vessel and should guarantee that regenerated catalyst is in fluidized state.
9. according to claim 1 or 5 described methods, the mixture of the flue gas that it is characterized in that after the temperature adjustment degassing vessel is with the dry gas stripping a small amount of superfluous dry gas and come out by stripping is drawn by temperature adjustment degassing tank deck, deliver to pre-mixing regenerating tube flue or directly deliver to the CO burning chamber, or deliver to CO (carbon monoxide converter) boiler.
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| CN96100050A CN1045460C (en) | 1996-01-11 | 1996-01-11 | Method for catalytic conversion of petroleum hydrocarbon |
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| CN96100050A CN1045460C (en) | 1996-01-11 | 1996-01-11 | Method for catalytic conversion of petroleum hydrocarbon |
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| CN1068899C (en) * | 1998-09-11 | 2001-07-25 | 中国石化北京设计院 | Catalytic conversion process in counter-flow moving bed with several reactors |
| AU2001237204A1 (en) | 2000-03-03 | 2001-09-12 | China Petroleum And Chemical Corporation | The stripping column and method for stripping smoke entrapped by regenerative catalyst |
| CN1100850C (en) * | 2000-04-29 | 2003-02-05 | 中国石化集团洛阳石油化工工程公司 | Fluidized catalytic process for transforming hydrocarbons |
| CN1098330C (en) * | 2000-04-29 | 2003-01-08 | 中国石化集团洛阳石油化工工程公司 | Fluidifying and catalytic convertion process of hydrocarbon |
| CN100351017C (en) * | 2004-09-28 | 2007-11-28 | 中国石油化工股份有限公司 | Flue gas stripping device |
| CN101279872B (en) * | 2007-04-04 | 2011-03-23 | 中国石油化工股份有限公司上海石油化工研究院 | Method for preparing low-carbon olefin hydrocarbon with oxocompound |
| CN102212385A (en) * | 2010-04-07 | 2011-10-12 | 中国石油化工集团公司 | Method and device for modifying gasoline |
| CN102212382B (en) * | 2010-04-07 | 2013-10-02 | 中国石油化工集团公司 | Catalytic cracking process and device |
| CN102228843B (en) * | 2011-04-29 | 2013-01-30 | 沈阳石蜡化工有限公司 | Degassing method for degassing tank of catalytic pyrolysis apparatus |
| CN103773447B (en) * | 2012-10-18 | 2015-09-23 | 中国石油化工股份有限公司 | A kind of heavy oil contact cracking method contacts cracking unit with heavy oil |
| CN103773446B (en) * | 2012-10-18 | 2015-09-23 | 中国石油化工股份有限公司 | A kind of heavy oil cracking reactor and heavy oil cracking process |
| TWI646076B (en) * | 2016-09-09 | 2019-01-01 | 中國石油化學工業開發股份有限公司 | Method for preparing cyclohexanone by hydrogenation of phenol |
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| US4396531A (en) * | 1981-08-13 | 1983-08-02 | Uop Inc. | Fluid catalyst regeneration process and apparatus |
| CN1031834A (en) * | 1987-08-08 | 1989-03-22 | 中国石油化工总公司石油化工科学研究院 | Produce the hydrocarbons catalytic conversion method of low-carbon alkene |
| US5015363A (en) * | 1987-11-06 | 1991-05-14 | Uop | FCC stripping method |
| CN1072201A (en) * | 1991-11-05 | 1993-05-19 | 中国石油化工总公司 | Produce the hydrocarbon conversion catalyst of premium-type gasoline and alkene |
| US5346613A (en) * | 1993-09-24 | 1994-09-13 | Uop | FCC process with total catalyst blending |
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