CN104801353A - Method for reactivating spent FCC (fluid catalytic cracking) catalyst through calcination and mixed reaction with SiCl4 - Google Patents
Method for reactivating spent FCC (fluid catalytic cracking) catalyst through calcination and mixed reaction with SiCl4 Download PDFInfo
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- CN104801353A CN104801353A CN201510178636.XA CN201510178636A CN104801353A CN 104801353 A CN104801353 A CN 104801353A CN 201510178636 A CN201510178636 A CN 201510178636A CN 104801353 A CN104801353 A CN 104801353A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 23
- 238000001354 calcination Methods 0.000 title claims abstract description 12
- 238000004231 fluid catalytic cracking Methods 0.000 title abstract 7
- 229910003910 SiCl4 Inorganic materials 0.000 title abstract 4
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 title abstract 4
- 238000001035 drying Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000008367 deionised water Substances 0.000 claims abstract description 4
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 4
- 238000004523 catalytic cracking Methods 0.000 claims description 46
- 230000008569 process Effects 0.000 claims description 19
- 229910003902 SiCl 4 Inorganic materials 0.000 claims description 16
- 239000012071 phase Substances 0.000 claims description 12
- 230000003716 rejuvenation Effects 0.000 claims description 10
- 230000035484 reaction time Effects 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 238000002309 gasification Methods 0.000 claims description 3
- 239000007790 solid phase Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 238000005406 washing Methods 0.000 abstract description 9
- 238000001914 filtration Methods 0.000 abstract description 7
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 2
- 230000007420 reactivation Effects 0.000 abstract 2
- 238000009270 solid waste treatment Methods 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 16
- 239000007789 gas Substances 0.000 description 13
- 239000000126 substance Substances 0.000 description 10
- 229910052759 nickel Inorganic materials 0.000 description 9
- 239000002994 raw material Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000003643 water by type Substances 0.000 description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 150000003863 ammonium salts Chemical class 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000007522 mineralic acids Chemical class 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000005554 pickling Methods 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 235000006408 oxalic acid Nutrition 0.000 description 2
- -1 rare earth compound Chemical class 0.000 description 2
- 150000002910 rare earth metals Chemical group 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- WURBVZBTWMNKQT-UHFFFAOYSA-N 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)butan-2-one Chemical compound C1=NC=NN1C(C(=O)C(C)(C)C)OC1=CC=C(Cl)C=C1 WURBVZBTWMNKQT-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 238000004438 BET method Methods 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 206010027439 Metal poisoning Diseases 0.000 description 1
- 241000270666 Testudines Species 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 229960001484 edetic acid Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002010 green coke Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- YWYZEGXAUVWDED-UHFFFAOYSA-N triammonium citrate Chemical compound [NH4+].[NH4+].[NH4+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O YWYZEGXAUVWDED-UHFFFAOYSA-N 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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Abstract
The invention discloses a method for reactivating a spent FCC (fluid catalytic cracking) catalyst through calcination and mixed reaction with SiCl4, and relates to the technical field of solid waste treatment and application. The reactivation method comprises steps as follows: (1), a spent FCC catalyst material subjected to calcination treatment is mixed with gas-phase SiCl4 for a reaction to obtain a catalyst product, and the temperature of the spent FCC catalyst material is in a range from 250 DEG C to 450 DEG C; (2), the catalyst product obtained in the step (1) is washed by deionized water until the pH value of filtering water remains unchanged, and then the catalyst product is subjected to drying treatment for 0.25-4 h at the temperature in a range from 100 DEG C to 350 DEG C so as to obtain a reactivated catalyst. According to the method, SiCl4 is adopted to have a gas-solid mixed reaction and water washing processing with the spent FCC catalyst, the reactivation method is simpler and is flexible to operate, and the reactivated catalyst has low content of heavy metal, high specific surface area and good activity stability.
Description
Technical field:
The present invention relates to roasting and SiCl
4the rejuvenation method of hybrid reaction catalytic cracking spent catalyst, belongs to solid waste process and applied technical field.
Background technology:
Catalytic cracking catalyst is a kind of catalyst that in oil refining process, application quantity is maximum.Catalytic cracking catalyst is the inactivation through reasons such as cracking reaction green coke, high-temperature water hot recycling and heavy metal pollutions in use.Slightly high for activity, the poising agent that tenor is relatively very low can be applied to some catalytic cracking unit or use as the agent that goes into operation, and then becomes useless agent for activity very low (specific surface is lower), poising agent that content of beary metal is higher.
For the processing method of waste acetic acid, method relatively more conventional is at present buried, but bury and can pollute soil and groundwater resource; Therefore, lot of domestic and international researcher does a lot of work to reuse waste acetic acid, replaces fresh catalyst after especially carrying out resurrection process to it.As ChemCat company of the U.S. uses H
2s and Cl
2gas and dead catalyst react and remove Ni, V, Fe, then with hydrogen peroxide with containing SO
2water catalyst is oxidized, reduces washing, then ammonium exchanges, and makes revivification of catalyst.CCTI company of the U.S. develops ACT treatment system on the basis of Demet technique, with Demet resemble process.This processing step is various, not easy to operate.Shah utilizes chelating agent (second phthalein acetone, ethylenediamine tetra-acetic acid, ammonium citrate etc.) to process the FCC catalyst of metal poisoning.Result shows, closes the catalyst of reaction treatment, H through huge legendary turtle
2obviously decline with the productive rate of dry gas, but the activity change of catalyst is little.Flvin utilizes ammonium salt and rare earth compound solution to carry out ion-exchange to the FCC equilibrium catalyst (the Y zeolite containing USY and rare earth exchanged) after superchlorination, sulfuration and other method process, compares the catalyst activity after distinct methods process, selective and partially catalyzed agent demetalization degree.From the result of the test of Flvin, sulfuration and chlorination process are to removing heavy metal, and particularly nickel is very effective; The ion-exchange of ammonium salt and rare earth is helpful to the activity improving catalyst.Domestic Zheng Lian justice waits and adopts the method for oxidation acid leaching washing to be studied, but the activity of demetalization rear catalyst do not have be improved significantly, for this reason, they also adopt the method for ammonium salt activation process to improve catalyst activity.The kindheartedness tinkling of pieces of jade etc. adopt oxalic acid and liquor potassic permanganate process spent FCC catalyst, and nickel removal rate is the highest can close to 50%; Be 1: 7 in solid-to-liquid ratio, temperature is the NH merely with 1.5% under 80 ~ 100 DEG C of conditions
4nO
3solution-treated catalyst 0.5h, just can remove the nickel of more than 50%; With the HClO of 33%
4process, catalyst nickel removal rate just can reach 50%, and with 100% HClO
4process catalyst, nickel removal efficiency reaches as high as 66.7%.Li Chunyi etc. adopt HCl, HNO
3, H
2sO
4and HClO
4deng inorganic acid pickling and oxidation and pickling (hydrogen peroxide and oxalic acid) composite algorithm to FCC dead catalyst carry out demetalization bring back to life study, result shows, inorganic acid all has vanadium removal effect, and does not have nickel removal effect, and the nickel removal effect of oxidation and pickling composite algorithm is then better.CN101219396A adopts inorganic acid and organic acid to process FCC dead catalyst, makes the heavy metal partial removal of dead catalyst, and specific area increases and active raising.
The rejuvenation method of existing FCC dead catalyst mostly processing step more complicated, operates cumbersome above, although some method is relatively simple, be difficult to reach desirable effect, especially the removal efficiency of heavy metal is lower.
Summary of the invention:
For the problems referred to above, the technical problem to be solved in the present invention is to provide roasting and SiCl
4the rejuvenation method of hybrid reaction catalytic cracking spent catalyst.
Roasting of the present invention and SiCl
4the rejuvenation method of hybrid reaction catalytic cracking spent catalyst comprises the following steps: that (1) is by the catalytic cracking spent catalyst material after calcination process and gas phase SiCl
4mixing is reacted, and obtain catalyst product, the temperature of charge of this catalytic cracking spent catalyst is 250-450 DEG C:
(2) remain unchanged by the pH value that the catalyst product of deionized water to step (1) gained is washed to filtered water, carry out drying process again, the temperature of dry process is 100-350 DEG C, and drying time is 0.25-4 hour, obtains resurrection catalyst.
As preferably, the gas phase SiCl in described step (1)
4by the SiCl of liquid
4carry out gasification formed, and then pass in the solid phase of catalytic cracking spent catalyst.
As preferably, SiCl in described step (1)
4with mass ratio 0.05-0.5: 1 of the butt of catalytic cracking spent catalyst material, the reaction time is 0.5-40 minute.
Beneficial effect of the present invention: it can overcome the drawback of prior art, adopts SiCl
4carry out gas-solid mixing reaction and wash processing with catalytic cracking spent catalyst, rejuvenation method is fairly simple, flexible operation, and the resurrection catalyst content of beary metal of gained is low, and specific area is high, and activity stability is good.
Accompanying drawing illustrates:
For ease of illustrating, the present invention is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is the physico-chemical property schematic diagram of catalytic cracking spent catalyst raw material used in each embodiment of the present invention;
The physico-chemical property schematic diagram of the resurrection catalyst that Fig. 2 obtains for each embodiment in the present invention;
The resurrection catalyst that Fig. 3 the present invention obtains carries out the physico-chemical property figure that Catalytic Cracking Performance evaluates feedstock oil used on small fixed flowing bed-tion reacting device;
Fig. 4 brings back to life catalyst on small fixed flowing bed-tion reacting device, carry out Catalytic Cracking Performance evaluation result analysis chart in the present invention.
Detailed description of the invention:
This detailed description of the invention is by the following technical solutions: (1) is by the catalytic cracking spent catalyst material after calcination process and gas phase SiCl
4mixing is reacted, and obtain catalyst product, the temperature of charge of this catalytic cracking spent catalyst is 250-450 DEG C;
(2) remain unchanged by the pH value that the catalyst product of deionized water to step (1) gained is washed to filtered water, carry out drying process again, the temperature of dry process is 100-350 DEG C, and drying time is 0.25-4 hour, obtains resurrection catalyst.
As preferably, the gas phase SiCl in described step (1)
4by the SiCl of liquid
4carry out gasification formed, and then pass in the solid phase of catalytic cracking spent catalyst.
As preferably, SiCl in described step (1)
4with mass ratio 0.05-0.5: 1 of the butt of catalytic cracking spent catalyst material, the reaction time is 0.5-40 minute.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Embodiment 1: by catalytic cracking spent catalyst (temperature of charge 400 DEG C) and gas phase SiCl through calcination process
4carry out hybrid reaction, (in this embodiment, catalytic cracking spent catalyst raw material is designated as former dose, and its physical and chemical performance parameter as shown in Figure 1), SiCl
4be 0.25: 1 with the mass ratio of the butt of catalytic cracking spent catalyst, the reaction time is 10 minutes.Reacted catalyst sample 10 times of deionized waters are carried out washing and filtering, and then carry out drying process to catalyst sample, baking temperature is 200 DEG C, and drying time is 2 hours, finally must bring back to life catalyst sample, is designated as sample 1.The physico-chemical property of products therefrom is shown in Fig. 2.In Fig. 2, specific area and pore volume adopt BET method to measure.
Embodiment 2: by catalytic cracking spent catalyst (temperature of charge 350 DEG C) and gas phase SiCl through calcination process
4carry out hybrid reaction, (in this embodiment, catalytic cracking spent catalyst raw material is with embodiment 1) SiCl
4be 0.35: 1 with the mass ratio of the butt of catalytic cracking spent catalyst, the reaction time is 20 minutes.Reacted catalyst sample 11 times of deionized waters are carried out washing and filtering, and then carry out drying process to catalyst sample, baking temperature is 250 DEG C, and drying time is 1.5 hours, finally must bring back to life catalyst sample, is designated as sample 2.The physico-chemical property of products therefrom is shown in Fig. 2.
Embodiment 3: by catalytic cracking spent catalyst (temperature of charge 250 DEG C) and gas phase SiCl through calcination process
4carry out hybrid reaction, (in this embodiment, catalytic cracking spent catalyst raw material is with embodiment 1) SiCl
4be 0.15: 1 with the mass ratio of the butt of catalytic cracking spent catalyst, the reaction time is 40 minutes.Reacted catalyst sample 8 times of deionized waters are carried out washing and filtering, and then carry out drying process to catalyst sample, baking temperature is 150 DEG C, and drying time is 3 hours, finally must bring back to life catalyst sample, is designated as sample 3.The physico-chemical property of products therefrom is shown in Fig. 3.
Embodiment 4: by catalytic cracking spent catalyst (temperature of charge 450 DEG C) and gas phase SiCl through calcination process
4carry out hybrid reaction, (in this embodiment, catalytic cracking spent catalyst raw material is with embodiment 1) SiCl
4be 0.05: 1 with the mass ratio of the butt of catalytic cracking spent catalyst, the reaction time is 0.5 minute.Reacted catalyst sample 5 times of deionized waters are carried out washing and filtering, and then carry out drying process to catalyst sample, baking temperature is 120 DEG C, and drying time is 4 hours, finally must bring back to life catalyst sample, is designated as sample 4.The physico-chemical property of products therefrom is shown in Fig. 2.
Embodiment 5: by catalytic cracking spent catalyst (temperature of charge 300 DEG C) and gas phase SiCl through calcination process
4carry out hybrid reaction, (in this embodiment, catalytic cracking spent catalyst raw material is with embodiment 1) SiCl
4be 0.5: 1 with the mass ratio of catalytic cracking spent catalyst butt, the reaction time is 30 minutes.Reacted catalyst sample 13 times of deionized waters are carried out washing and filtering, and then carry out drying process to catalyst sample, baking temperature is 300 DEG C, and drying time is 45 minutes, finally must bring back to life catalyst sample, is designated as sample 5.The physico-chemical property of products therefrom is shown in Fig. 2.
Embodiment 6: by catalytic cracking spent catalyst (temperature of charge 280 DEG C) and gas phase SiCl through calcination process
4carry out hybrid reaction, SiCl
4be 0.2: 1 with the mass ratio of the butt of catalytic cracking spent catalyst, the reaction time is 35 minutes.Reacted catalyst sample 9 times of deionized waters are carried out washing and filtering, and then carry out drying process to catalyst sample, baking temperature is 350 DEG C, and drying time is 15 minutes, finally must bring back to life catalyst sample, is designated as sample 6.The physico-chemical property of products therefrom is shown in Fig. 2.In Fig. 2, * MAT is expressed as the micro anti-active index of catalytic cracking catalyst, as shown in Figure 2, Fe, Ni, V in the catalyst after resurrection, the content of beary metal such as Ca and Na is low, specific area and micro anti-active index significantly improve.
The resurrection catalyst of above-described embodiment gained is carried out Catalytic Cracking Performance evaluation on small fixed flowing bed-tion reacting device.Evaluate catalysts is the mixing (mixed catalyst is labeled as embodiment numbering) of former dose and resurrection catalyst, and its Central Plains agent accounts for 30% of mixed catalyst, brings back to life catalyst and accounts for 70% of mixed catalyst.Reaction condition is as follows: reaction temperature is 500 DEG C, and oil ratio is 4.0, and mass space velocity is 20h
-1; As shown in Figure 3, cracking reaction Evaluation results as shown in Figure 4 for raw materials used oil nature.Can be drawn by Fig. 4: bring back to life the coke yield that can reduce device in catalyst application to catalytic cracking unit, the yield of gasoline and liquefied gas can be improved simultaneously.
Claims (3)
1. roasting and SiCl
4the rejuvenation method of hybrid reaction catalytic cracking spent catalyst, is characterized in that: its rejuvenation method comprises the following steps: that (1) is by the catalytic cracking spent catalyst material after calcination process and gas phase SiCl
4mixing is reacted, and obtain catalyst product, the temperature of the material of this catalytic cracking spent catalyst is 250-450 DEG C;
(2) remain unchanged by the pH value that the catalyst product of deionized water to step (1) gained is washed to filtered water, carry out drying process again, the temperature of dry process is 100-350 DEG C, and drying time is 0.25-4 hour, obtains resurrection catalyst.
2. roasting according to claim 1 and SiCl
4the rejuvenation method of hybrid reaction catalytic cracking spent catalyst, is characterized in that: the gas phase SiCl in described step (1)
4by the SiCl of liquid
4carry out gasification formed, and then pass in the solid phase of catalytic cracking spent catalyst.
3. roasting according to claim 1 and SiCl
4the rejuvenation method of hybrid reaction catalytic cracking spent catalyst, is characterized in that: SiCl in described step (1)
4with mass ratio 0.05-0.5: 1 of the butt of catalytic cracking spent catalyst material, the reaction time is 0.5-40 minute.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510178636.XA CN104801353B (en) | 2015-04-15 | 2015-04-15 | Roasting and SiCl4The rejuvenation method of hybrid reaction catalytic cracking spent catalyst |
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|---|---|---|---|
| CN201510178636.XA CN104801353B (en) | 2015-04-15 | 2015-04-15 | Roasting and SiCl4The rejuvenation method of hybrid reaction catalytic cracking spent catalyst |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112973804A (en) * | 2019-12-12 | 2021-06-18 | 青岛惠城环保科技股份有限公司 | Method for reactivating waste catalytic cracking catalyst |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4784749A (en) * | 1986-05-13 | 1988-11-15 | Mobil Oil Corporation | Cracking/dewaxing |
| CN1072617A (en) * | 1991-11-27 | 1993-06-02 | 中国科学院化工冶金研究所 | The renovation process of waste molecular sieve cracking catalyzer |
| CN1127161A (en) * | 1995-01-16 | 1996-07-24 | 中国石油化工总公司石油化工科学研究院 | Preparation of rare earth-containing rich silicon ultra stabilization Y-type molecular sieve |
| CN102049315A (en) * | 2009-10-30 | 2011-05-11 | 中国石油化工股份有限公司 | Method for preparing catalytic cracking catalyst |
-
2015
- 2015-04-15 CN CN201510178636.XA patent/CN104801353B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4784749A (en) * | 1986-05-13 | 1988-11-15 | Mobil Oil Corporation | Cracking/dewaxing |
| CN1072617A (en) * | 1991-11-27 | 1993-06-02 | 中国科学院化工冶金研究所 | The renovation process of waste molecular sieve cracking catalyzer |
| CN1127161A (en) * | 1995-01-16 | 1996-07-24 | 中国石油化工总公司石油化工科学研究院 | Preparation of rare earth-containing rich silicon ultra stabilization Y-type molecular sieve |
| CN102049315A (en) * | 2009-10-30 | 2011-05-11 | 中国石油化工股份有限公司 | Method for preparing catalytic cracking catalyst |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112973804A (en) * | 2019-12-12 | 2021-06-18 | 青岛惠城环保科技股份有限公司 | Method for reactivating waste catalytic cracking catalyst |
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Address after: 266500 Huaihe East Road, Qingdao economic and Technological Development Zone, Shandong, China, No. 57, No. Patentee after: QINGDAO HUI CHENG ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 266500 Huaihe East Road, Qingdao economic and Technological Development Zone, Shandong, China, No. 57, No. Patentee before: QINGDAO HUICHENG PETROCHEMICAL TECHNOLOGY Co.,Ltd. |
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Denomination of invention: Reactivation of spent catalyst for catalytic cracking by roasting and SiCl4 mixing reaction Effective date of registration: 20180828 Granted publication date: 20170315 Pledgee: Societe Generale Limited by Share Ltd. Qingdao branch Pledgor: QINGDAO HUI CHENG ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Registration number: 2018370010091 |
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