CN102600826A - Catalytic cracking assistant composition and catalytic cracking assistant - Google Patents
Catalytic cracking assistant composition and catalytic cracking assistant Download PDFInfo
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Abstract
The invention provides a catalytic cracking assistant composition which can reduce coke yield in catalytic cracking, comprising following components based on total weight of the catalytic cracking assistant composition: 2-65wt% of silicon-magnesium adhesive, 1-25wt% of rare-earth compound and 15-85wt% of monohydrate bauxite. The invention also provides a catalytic cracking assistant which can reduce coke yield in catalytic cracking is obtained by spray drying, granulating and roasting the catalytic cracking assistant composition and water after being beaten. In the catalytic cracking assistant provided by the invention, due to the silicon-magnesium adhesive, the rare-earth compound and the monohydrate bauxite as materials, the catalytic cracking assistant has large matrix specific surface area, proper acidity and excellent heavy oil conversion capability, notably improves absorption rate of gasoline and diesel and notably reduces yield of coke and dry gas.
Description
Technical field
The assistant for calalytic cracking that the invention relates to a kind of assistant for calalytic cracking composition and made by said composition is further said so about a kind of assistant for calalytic cracking composition of catalytic cracking coke yield and assistant for calalytic cracking that is made by said composition of reducing.
Background technology
Reducing CO2 emission is the common recognition that countries in the world government reaches, and the Chinese government promises to undertake that the year two thousand twenty per GDP carbon emission reduces by 40%.The CO2 emission of U.S. petroleum refining industry generation in 2002 accounts for 20% of U.S.'s industrially preparing CO 2 total emission volumn in the same year according to statistics; And the CO2 emission that catalytic cracking produces occupies the first place of petroleum refining industry; Account for 15～20% of refinery's CO2 emission, be up to 30%.Therefore, reduce refinery's CO2 emission and at first must reduce the catalytic cracking CO2 emission.The catalytic cracking CO2 emission mainly produces in the catalyst regeneration burning process, therefore, reduces the coke yield that the catalytic cracking CO2 emission must reduce catalytic cracking.
Reducing the catalytic cracking coke yield not only has the important social benefit, and has huge economic benefit, imposes especially in the near future after the carbo-dioxide-based tax, and reducing the catalytic cracking coke yield will be the common tasks in all refineries.
The catalytic cracking coke type has five kinds: oil ratio is burnt, pollution is burnt, catalysis is burnt, charging is burnt and thermal cracking is burnt.Oil ratio Jiao is that residual hydrocarbons gets into the regenerator green coke behind the stripping; Polluting burnt is from pollution metal and the active reaction green coke that causes thereof; Catalysis Jiao comprises monomolecular reaction process and bimolecular reaction process from catalytic cracking reaction; Charging Jiao is from raw material Kang Shi carbon residue; Thermal cracking Jiao is the green coke from heat cracking reaction.
The catalytic cracking catalyst of traditional reduction coke yield adopts super stable molecular sieve and inert base to reduce catalyst more.Reported a kind of modified molecular screen that can improve coking like CN101537366A, its cell parameter is
Intercat company has reported a kind of heavy oil transformation auxiliary agent (BCA-105) at patent WO9712011; Its characteristic is containing three kinds of aluminium oxide; One of which is a boehmite, and it is two for the siliceous aluminium hydroxide with structure of similar to thin diaspore, its three be can not peptization aluminium hydroxide; BCA-105 does not contain rare earth, oxygen-free magnesium yet.
CN101745373A reports a kind of assistant for calalytic cracking, it is characterized by two kinds of aluminium oxide that contain stepped pore distribution, and a kind of is macroporous aluminium oxide, and a kind of is little porous aluminum oxide.CN1978593B has reported a kind of catalytic cracking catalyst, it is characterized by catalyst and contains a kind of mesoporous material with structure of similar to thin diaspore, and this mesoporous material is salic, silica and metal oxide, like magnesia or rare earth oxide etc.CN1322917C has reported a kind of mesoporous silicon aluminum and preparation method thereof, and aluminium all is four-coordination in this mesoporous silicon aluminum.CN1964785A has reported a kind of FCC method of using medium-pore catalyst; This medium-pore catalyst does not contain the hole of
, and mesopore concentrates on
Summary of the invention
The purpose of this invention is to provide a kind of assistant for calalytic cracking composition and assistant for calalytic cracking that can reduce the catalytic cracking coke yield.
The invention provides a kind of assistant for calalytic cracking composition that can reduce the catalytic cracking coke yield; Gross weight in the assistant for calalytic cracking composition; This assistant for calalytic cracking composition contains the silicon magnesium glue of 2～65 heavy %, 1～25 heavy % rare earth compound, 25～85 heavy % one diaspores.
The present invention also provides a kind of assistant for calalytic cracking that can reduce the catalytic cracking coke yield, and this assistant for calalytic cracking makes through spray drying granulation and roasting after being pulled an oar by above-mentioned assistant for calalytic cracking composition and water.
Assistant for calalytic cracking provided by the invention is a raw material owing to adopt silicon magnesium glue, rare earth compound and a diaspore, therefore has big matrix specific area, catalytic cracking coke yield significantly, has excellent heavy oil conversion performance simultaneously.Data by following examples can find out that when assistant for calalytic cracking of the present invention and catalytic equilibration agent mating reaction were used for heavy oil transformation, the output of coke and dry gas all obviously reduced, and the total recovery of liquefied gas, gasoline and diesel oil then obviously improves.For example, when adopting the assistant for calalytic cracking of embodiment 2, the yield of dry gas and coke is respectively 2.5% and 6.8%, and the total recovery of liquefied gas, gasoline and diesel oil is 87.6%; And under the identical situation of other conditions, the dry gas when adopting import in-situ crystallization coagent and the yield of coke are respectively 3.2% and 8.6%, and the total recovery of liquefied gas, gasoline and diesel oil is 85.2%.The former has reduced by 1.8% than latter coking yield, and the total recovery of liquefied gas, gasoline and diesel oil has improved 2.4%.
The specific embodiment
The invention provides a kind of assistant for calalytic cracking composition that can reduce the catalytic cracking coke yield; Gross weight in the assistant for calalytic cracking composition; And in butt; This assistant for calalytic cracking composition contains the silicon magnesium glue of 2～65 heavy %, 1～25 heavy % rare earth compound, 25～85 heavy % one diaspores.
In the assistant for calalytic cracking composition provided by the invention, said silicon magnesium glue is the material of a kind of similar and Alusil well known in the art, is a kind of bigger serface colloidal solid.Can prepare by the method for well known to a person skilled in the art, for example can make according to the method for U.S. Pat 3129189.
Weight with silicon magnesium glue is benchmark, and in butt weight, in oxide, magnesian content can be 10～40 heavy % in the said silicon magnesium glue, is preferably 15～30 heavy %; The content of silica can be 60～90 heavy %, is preferably 67.5～84 heavy %; Fluorine element content can be 0～3 heavy %, is preferably 0.1～2.5 heavy %.
Said rare earth compound can be for well known to a person skilled in the art various rare earth compounds, and rare earth compound is preferably one or more in rare earth oxide, rare-earth hydroxide, rare earth nitrades and the rare earth carbonate.Said rare earth compound middle rare earth element is one or more in lanthanum, cerium, samarium, praseodymium, neodymium, promethium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, actinium, thorium, protactinium, uranium and the neptunium, is preferably in lanthanum, cerium, the samarium one or more.
A said diaspore comprises and well known to a person skilled in the art and in various boehmites and the diaspore one or more be preferably boehmite, further is preferably boehmite and/or boehmite.
The shape of said boehmite does not have special requirement, and is preferred laminar and/or fibrous.The shape of boehmite described herein can for laminar and/or fibrous be meant can be whole boehmite be laminar, whole boehmites be fibrous, or a part be fibrous for laminar, another part.Said laminar thickness can be 5 nanometers-100 nanometer, and said fibrous length can be the 10-200 nanometer, and diameter is 2 nanometers-50 nanometers.
Under the preferable case, it is the MFI structure shape-selective molecular sieve of benchmark 0～5 heavy %, the binding agent of 2～10 heavy % and the clay of 0～60 heavy % that assistant for calalytic cracking composition provided by the invention can also contain with the total amount of assistant for calalytic cracking composition.According to one embodiment of the present invention; In the gross weight of assistant for calalytic cracking composition, said composition contains the silicon magnesium glue of 5～20 heavy %, the rare earth oxide of 1～10 heavy %, the diaspore of 15～65 heavy %, the MFI structure shape-selective molecular sieve of 0～5 heavy %, the binding agent of 2～10 heavy % and the clay of 20～60 heavy %.Under the preferable case; In the gross weight of assistant for calalytic cracking composition, said composition contains the silicon magnesium glue of 8～15 heavy %, the rare earth oxide of 2～5 heavy %, the diaspore of 30～45 heavy %, the MFI structure shape-selective molecular sieve of 0～5 heavy %, the binding agent of 3～9 heavy % and the clay of 40～55 heavy %.
Said MFI structure shape-selective molecular sieve can be preferably the ZSM-5 molecular sieve for well known to a person skilled in the art MFI structure shape-selective molecular sieve.
Said clay is selected from clay commonly used in Cracking catalyst and the auxiliary agent, and for example clay can be selected from one or more in kaolin, galapectite, sepiolite, diatomite, rectorite, attapulgite, bentonite and the imvite.
Said binding agent can be selected from binding agent commonly used in the assistant for calalytic cracking; For example be in aluminium colloidal sol, Ludox, silicon-aluminum sol, hydrated alumina and their precursor one or more, be preferably in aluminium colloidal sol, Ludox, the silicon-aluminum sol one or more.
The above-mentioned assistant for calalytic cracking preparation of compositions method that can reduce the catalytic cracking coke yield provided by the invention is simple, only needs respective components mixed to get final product.
The present invention also provides a kind of assistant for calalytic cracking that can reduce the catalytic cracking coke yield, and this assistant for calalytic cracking makes through spray drying granulation and roasting after by the making beating of above-mentioned assistant for calalytic cracking composition provided by the invention and water.
The consumption of said water has no particular limits, as long as can make said assistant for calalytic cracking composition form uniform slurry.Under the preferable case, the weight ratio of assistant for calalytic cracking composition and water is 1: 1-10 is preferably 1: 1.5-5.
Said spray drying granulation can adopt various spray drying device well known in the art to carry out.Under the preferable case, the temperature of spray-drying tail gas is 100-150 ℃ during said spray drying granulation.
The method of said roasting is the conventional method in this area, and the temperature of roasting is preferably 450～650 ℃, and the time of roasting is preferably 0.2-5 hour, more preferably 0.5-2 hour.
According to the present invention, the above-mentioned preparation method that can reduce the assistant for calalytic cracking of catalytic cracking coke yield comprises once carrying out spray drying granulation and roasting after above-mentioned assistant for calalytic cracking composition provided by the invention and the water making beating.Can be earlier each composition of above-mentioned assistant for calalytic cracking composition be mixed; Obtain mixing with water again behind the mixture and pull an oar, also can be directly each composition of above-mentioned assistant for calalytic cracking composition be mixed with water separately or together without being pre-mixed and pull an oar.The consumption of water, spray drying granulation and roasting are described hereinbefore, repeat no more at this.
Following embodiment will be further described the present invention, but protection scope of the present invention does not receive the restriction of these embodiment.In following examples, abrasion index is the straight tube method, presses Q/SH 3360208-2006 standard test.Heap is measured than pressing Q/SH 3360 207-2006 standard method of test.
Embodiment 1
According to the fluorine-containing silicon magnesium glue of U.S. Pat 3129189 preparations, in the silicon magnesium glue that obtains, in the butt weight of silicon magnesium glue and in oxide, magnesian content 28.0 heavy %, the content of silica is 69.4 heavy %, the content of sodium oxide molybdena is 0.1 heavy %; The content 2.5 heavy % of fluorine element, and the BET specific area of this silicon magnesium glue is 526m
2/ g, pore volume are 0.52ml/g.
Add 2000 gram water in the agitated reactor, under vigorous stirring, add 60 gram silicon magnesium glue (by butt weight, down with), 27 gram lanthanas more successively, 18 gram aluminium colloidal sols (build long branch company and produce by China Petrochemical Industry's catalyst Co.; The content of aluminium oxide is 21.0 heavy %, and addition is by butt weight, down with), 225 gram boehmite (Shanxi Aluminium Plant productions; The content of aluminium oxide is 60.0 heavy %, and addition is by butt weight, down together) and 270 gram galapectites (source, sky, Chenxi, Hunan company productions; Water content is 29.1 heavy %, and addition is by butt weight, down together); Stir spray drying granulation after 30 minutes; The spray-drying exhaust temperature is 105 ℃, 550 ℃ of following roastings 30 minutes, obtains assistant for calalytic cracking A then.
The BET specific area of assistant for calalytic cracking A is 165m
2/ g, abrasion index is 1.1, heap is than being 0.72g/ml.
Embodiment 2
According to the fluorine-containing silicon magnesium glue of U.S. Pat 3129189 preparations, in the silicon magnesium glue that obtains, in the butt weight of silicon magnesium glue and in oxide, magnesian content is 16.0 heavy %, and the content of silica is 81.9 heavy %, and the content of sodium oxide molybdena is 0.1 heavy %; The content of fluorine element is 2.0 heavy %, and the BET specific area 512m of this silicon magnesium glue
2/ g, pore volume 0.65ml/g.
In agitated reactor, add 2400 gram water, under vigorous stirring, add 90 gram silicon magnesium glue more successively, 30 gram lanthanum carbonates, 54 restrain the aluminium colloidal sols, (Chalco group company provides the fibrous boehmite of 186 grams; Fibre diameter is 8 nanometers, and length is 100 nanometers, pore volume 1.1ml/g; Addition is by butt weight) and 240 gram kaolin (kaolin company in Suzhou produces, and water content is 30.0 heavy %, and addition is by butt weight; Down together), stir spray-drying after 30 minutes, the spray-drying exhaust temperature is 120 ℃; 450 ℃ of following roastings 2 hours, obtain assistant for calalytic cracking B then.
The BET specific area of assistant for calalytic cracking B is 182m
2/ g, abrasion index is 1.6, heap is than being 0.68g/ml.
Embodiment 3
According to the fluorine-containing silicon magnesium glue of U.S. Pat 3129189 preparations, in the silicon magnesium glue that obtains, in the butt weight of silicon magnesium glue and in oxide, magnesian content is 28.0 heavy %, and the content of silica is 69.4 heavy %, and the content of sodium oxide molybdena is 0.1 heavy %; The content of fluorine element is 2.5 heavy %, and the BET specific area of this silicon magnesium glue is 526m
2/ g, pore volume are 0.52ml/g.
Add 1800 gram water in the agitated reactor, under vigorous stirring, add 48 gram silicon magnesium glue, 24 gram lanthanum nitrates, 30 gram aluminium colloidal sols more successively, (by the method preparation that United States Patent (USP) 6403007 provides, specific area is 25.6m to the laminar boehmite of 180 grams
2/ g, alumina content are 56.8 heavy %, and laminar thickness is 10 nanometers; Addition is by butt weight) and 318 gram kaolin, stirring spray-drying after 30 minutes, the spray-drying exhaust temperature is 140 ℃; 500 ℃ of roastings are 30 minutes then, obtain assistant for calalytic cracking C.
The BET specific area of assistant for calalytic cracking C is 162m
2/ g, abrasion index is 1.0, heap is than being 0.74g/ml.
Embodiment 4
According to the fluorine-containing silicon magnesium glue of U.S. Pat 3129189 preparations, in the silicon magnesium glue that obtains, in the butt weight of silicon magnesium glue and in oxide, magnesian content is 28.0 heavy %, and the content of silica is 69.4 heavy %, and the content of sodium oxide molybdena is 0.1 heavy %; The content of fluorine element is 2.5 heavy %, and the BET specific area of silicon magnesium glue is 526m
2/ g, pore volume are 0.52ml/g.
Add 2000 gram water in the agitated reactor, under vigorous stirring, add 48 gram silicon magnesium glue, 27 gram lanthanas more successively, (Fudan University provides 18 gram Ludox, in oxide; The heavy % of dioxide-containing silica 30.0, sodium oxide content 0.1 heavy %, addition is by butt weight), 270 gram boehmites and 237 gram galapectites; Stir spray-drying after 30 minutes; The spray-drying exhaust temperature is 120 ℃, 650 ℃ of following roastings 30 minutes, obtains assistant for calalytic cracking D then.
The BET specific area of assistant for calalytic cracking D is 158m
2/ g, abrasion index is 1.4, heap is than being 0.72g/ml.
Embodiment 5
According to the fluorine-containing silicon magnesium glue of U.S. Pat 3129189 preparations, in the silicon magnesium glue that obtains, in the butt weight of silicon magnesium glue and in oxide, content of magnesia is 28.0 heavy %, and the content of silica is 69.4 heavy %, and the content of sodium oxide molybdena is 0.1 heavy %; The content of fluorine element is 2.5 heavy %, and the BET specific area of this silicon magnesium glue is 526m
2/ g, pore volume are 0.52ml/g.
In agitated reactor, add 2000 gram water; Under vigorous stirring, add 48 gram silicon magnesium glue, 27 gram samarium oxides, 18 gram aluminium colloidal sols, 237 gram boehmites and 270 gram galapectites more successively; Stir spray-drying after 30 minutes; The spray-drying exhaust temperature is 120 ℃, 550 ℃ of following roastings 30 minutes, obtains assistant for calalytic cracking E then.
The BET specific area of assistant for calalytic cracking E is 161m
2/ g, abrasion index is 0.9, heap is than being 0.74g/ml.
Embodiment 6
According to the fluorine-containing silicon magnesium glue of U.S. Pat 3129189 preparations; In the silicon magnesium glue that obtains, in the butt weight of silicon magnesium glue and in oxide, magnesian content is 28.0 heavy %; The content of silica is 69.4 heavy %; The content of sodium oxide molybdena is 0.1 heavy %, and the content of fluorine element is 2.5 heavy %, and the BET specific area of this silicon magnesium glue is 526m
2/ g, pore volume are 0.52ml/g.
In agitated reactor, add 2000 gram water; Under vigorous stirring, add 48 gram silicon magnesium glue, 30 gram cerium oxide, 18 gram aluminium colloidal sols, 234 gram boehmites and 270 gram galapectites more successively; Stir spray-drying after 30 minutes; The spray-drying exhaust temperature is 120 ℃, 550 ℃ of following roastings 30 minutes, obtains assistant for calalytic cracking F then.
The BET specific area of assistant for calalytic cracking F is 156m
2/ g, abrasion index is 0.9, heap is than being 0.76g/ml.
Embodiment 7
According to the fluorine-containing silicon magnesium glue of U.S. Pat 3129189 preparation, in the silicon magnesium glue that obtains, in the butt weight of silicon magnesium glue and in oxide, magnesian content 28.0 % that attaches most importance to, the content of silica is 69.4 heavy %, the content of sodium oxide molybdena is 0.1 heavy %; The content of fluorine element is 2.5 heavy %, and the BET specific area of this silicon magnesium glue is 526m
2/ g, pore volume are 0.52ml/g.
In agitated reactor, add 2000 gram water; Under vigorous stirring, add 48 gram silicon magnesium glue, 27 gram lanthanas, 30 gram ZSM-5 (Nankai University provides, and silica alumina ratio is 30, and addition is by butt weight), 18 gram aluminium colloidal sols, 207 gram boehmites and 270 gram galapectites more successively; Stir spray-drying after 30 minutes; The spray-drying exhaust temperature is 120 ℃, 550 ℃ of following roastings 30 minutes, obtains assistant for calalytic cracking G then.
The BET specific area of assistant for calalytic cracking G is 165m
2/ g, abrasion index is 1.2, heap is than being 0.72g/ml.
Comparative Examples 1
Method with reference to embodiment among the WO9712011 1 prepares contrast medium.
In agitated reactor, add 2159 gram water; Under vigorous stirring, add the 270 gram SASOL SB of company powder, 71 more successively and restrain gibbsite (Shandong Aluminum Plant's production that the SASOL Siral of company 5,68 gram formic acid, 833 gram kaolin and 893 gram concentration are 28 heavy %; Alumina content is 70 heavy %) slurries, stir spray-drying after 30 minutes, 145 ℃ of spray-drying exhaust temperatures; 550 ℃ of following roastings 30 minutes, obtain contrast medium DB1 then.
The BET specific area of contrast medium DB1 is 130m
2/ g, abrasion index is 1.3, heap is than being 0.80g/ml.
Comparative Examples 2
Contrast medium DB2 is the auxiliary agent Converter that BASF AG produces.
The BET specific area of contrast medium DB2 is 430m
2/ g, abrasion index is 1.6, heap is than being 0.73g/ml.
The physico-chemical property of the assistant for calalytic cracking of the foregoing description and Comparative Examples preparation is seen table 1.
Table 1
Embodiment 8
Present embodiment is explained the fixed fluidized bed evaluation result of assistant for calalytic cracking provided by the invention.
Before auxiliary agent is estimated through aging 4 hours of 800 ℃, 100% steam, through the auxiliary agent of hydrothermal aging and the poising agent of SINOPEC Luoyang Company one catalysis (the poising agent micro-activity is 65%, alumina content 47.0 heavy %, silica content 43.4 weighs %, RE
2O
3Content 3.8 heavy %; Phosphorus pentoxide content 1.6 heavy %, nickel oxide content 0.90 heavy %, vanadium oxide content 0.82 heavy %) mixed by weight 15: 85; Feedstock oil is the fcc raw material oil that SINOPEC Luoyang Company is produced; Wherein carbon residue content is 2.76 heavy %, and density is 0.9068g/ml, and sulfur content is 0.28 heavy %.The condition of estimating: reaction temperature is 500 ℃, and weight space velocity is 30h
-1, agent weight of oil ratio is 6.0.
Under these conditions the assistant for calalytic cracking A-G that made by embodiment 1-7 and contrast medium DB1 and DB2 are estimated according to the method described above, evaluation result is seen table 2.Table 2 empty appearance does not contain assistant for calalytic cracking for having only the catalytic equilibration agent.
Table 2
* total liquid is received and is the total recovery of gasoline+diesel oil+liquefied gas
Can find out that from the fixed fluidized bed evaluation result that table 2 provides the assistant for calalytic cracking of embodiment of the invention 1-7 preparation is compared with contrast medium, not only can reduce the slurry oil productive rate, and can reduce coke yield and dry gas yied simultaneously.
Claims (10)
1. an assistant for calalytic cracking composition is characterized in that, in the gross weight of assistant for calalytic cracking composition; And in butt; This assistant for calalytic cracking composition contains the silicon magnesium glue of 2～65 heavy %, 1～25 heavy % rare earth compound, 15～85 heavy % one diaspores.
2. assistant for calalytic cracking composition according to claim 1 wherein, is a benchmark with the weight of silicon magnesium glue, and in oxide, magnesian content is 10～40 heavy % in the said silicon magnesium glue, is preferably 15～35 heavy %.
3. assistant for calalytic cracking composition according to claim 1 and 2, wherein, fluorine element content is 0.1～3 heavy % in the described silicon magnesium glue.
4. assistant for calalytic cracking composition according to claim 1, wherein, said rare earth compound is one or more in rare earth oxide, rare-earth hydroxide, rare earth nitrades and the rare earth carbonate.
5. assistant for calalytic cracking composition according to claim 1, wherein, a said diaspore is boehmite and/or boehmite.
6. assistant for calalytic cracking composition according to claim 5, wherein, being shaped as of said boehmite is laminar and/or fibrous.
7. assistant for calalytic cracking composition according to claim 1; Wherein, This assistant for calalytic cracking composition also contains the gross weight in the assistant for calalytic cracking composition, the clay of the MFI structure shape-selective molecular sieve of 0～5 heavy %, the binding agent of 2～10 heavy % and 0～60 heavy %.
8. assistant for calalytic cracking composition according to claim 7; Wherein, Gross weight in this assistant for calalytic cracking composition; And in butt; This assistant for calalytic cracking contains the silicon magnesium glue of 5～20 heavy %, the rare earth oxide of 1～10 heavy %, the diaspore of 15～65 heavy %, the MFI structure shape-selective molecular sieve of 0～5 heavy %, the binding agent of 2～10 heavy %, the clay of 20～60 heavy %, the clay of the binding agent of the diaspore of the silicon magnesium glue of preferred 8～15 heavy %, the rare earth oxide of 2～5 heavy %, 30～45 heavy %, the MFI structure shape-selective molecular sieve of 0～5 heavy %, 3～9 heavy % and 40～55 heavy %.
9. assistant for calalytic cracking composition according to claim 8; Wherein, Said clay is selected from one or more in kaolin, galapectite, sepiolite, diatomite, rectorite, attapulgite, bentonite and the imvite, and said binding agent is one or more in aluminium colloidal sol, Ludox, the Alusil.
10. an assistant for calalytic cracking is characterized in that, this assistant for calalytic cracking is by making through spray drying granulation and roasting after the making beating of any described assistant for calalytic cracking composition and water in the claim 1～9.
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| CN104492472A (en) * | 2014-12-09 | 2015-04-08 | 华东师范大学 | Fluidized catalytic cracking catalytic promoter with low coke yield and preparation method of fluidized and cracking catalytic promoter |
| CN104525179A (en) * | 2014-12-29 | 2015-04-22 | 江苏健神生物农化有限公司 | Process for preparing catalyst used for catalytic cracking of waste plastics |
| CN105983449A (en) * | 2015-02-10 | 2016-10-05 | 中国石油天然气股份有限公司 | Preparation method of catalytic cracking cocatalyst for tower bottom oil |
| CN105983449B (en) * | 2015-02-10 | 2018-11-16 | 中国石油天然气股份有限公司 | Preparation method of catalytic cracking cocatalyst for tower bottom oil |
| CN107376920A (en) * | 2017-07-29 | 2017-11-24 | 望江县大唐资源再生有限公司 | A kind of heavy oil catalytic pyrolysis method for preparing catalyst |
| CN107442101A (en) * | 2017-07-29 | 2017-12-08 | 望江县大唐资源再生有限公司 | A kind of method for preparing catalyst that heavy oil pyrolysis ability is provided |
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