CN102849763A - Solid-phase preparation method of gamma-alumina with gradient distribution holes - Google Patents
Solid-phase preparation method of gamma-alumina with gradient distribution holes Download PDFInfo
- Publication number
- CN102849763A CN102849763A CN2012103288242A CN201210328824A CN102849763A CN 102849763 A CN102849763 A CN 102849763A CN 2012103288242 A CN2012103288242 A CN 2012103288242A CN 201210328824 A CN201210328824 A CN 201210328824A CN 102849763 A CN102849763 A CN 102849763A
- Authority
- CN
- China
- Prior art keywords
- alumina
- gama
- carbonate ammonium
- aluminium carbonate
- gradient distribution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 238000009826 distribution Methods 0.000 title claims abstract description 19
- 239000007790 solid phase Substances 0.000 title claims abstract description 7
- 238000002360 preparation method Methods 0.000 title abstract description 12
- IOGARICUVYSYGI-UHFFFAOYSA-K azanium (4-oxo-1,3,2-dioxalumetan-2-yl) carbonate Chemical compound [NH4+].[Al+3].[O-]C([O-])=O.[O-]C([O-])=O IOGARICUVYSYGI-UHFFFAOYSA-K 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 239000002243 precursor Substances 0.000 claims abstract description 17
- 239000011148 porous material Substances 0.000 claims abstract description 16
- 230000032683 aging Effects 0.000 claims description 14
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 8
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 5
- -1 polyoxyethylene Polymers 0.000 claims description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 159000000013 aluminium salts Chemical group 0.000 claims description 2
- 229910000329 aluminium sulfate Inorganic materials 0.000 claims description 2
- 150000003863 ammonium salts Chemical class 0.000 claims description 2
- 230000005070 ripening Effects 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003746 solid phase reaction Methods 0.000 abstract description 4
- 238000003786 synthesis reaction Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 239000000295 fuel oil Substances 0.000 description 6
- 238000000227 grinding Methods 0.000 description 5
- 238000005984 hydrogenation reaction Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 3
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 3
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 description 3
- 239000001099 ammonium carbonate Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 229910018516 Al—O Inorganic materials 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241000186216 Corynebacterium Species 0.000 description 2
- 241000772415 Neovison vison Species 0.000 description 2
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 238000004523 catalytic cracking Methods 0.000 description 2
- PPQREHKVAOVYBT-UHFFFAOYSA-H dialuminum;tricarbonate Chemical compound [Al+3].[Al+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O PPQREHKVAOVYBT-UHFFFAOYSA-H 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000010671 solid-state reaction Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 230000027455 binding Effects 0.000 description 1
- 238000009739 binding Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000010335 hydrothermal treatment Methods 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000001935 peptisation Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000008279 sol Substances 0.000 description 1
- 238000010532 solid phase synthesis reaction Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Catalysts (AREA)
Abstract
A solid phase preparation method of gamma-alumina with gradient distribution pores. The method comprises the steps of obtaining a precursor ammonium aluminum carbonate through a solid-phase reaction, and roasting to obtain the gamma-alumina with higher specific surface area, gradient distribution holes and larger pore volume. The most prominent technical characteristic of the invention is that the raw material solid phase reaction synthesis technology is adopted, and the property of the obtained gamma-alumina is controlled by the synthesis condition. Meanwhile, the method is simple, easy to operate, free of adding a pore-expanding agent, cost-saving and suitable for industrial mass production.
Description
Technical field
The present invention relates to the method for preparing solid phase of a kind of Gradient distribution hole gama-alumina, the method is the preparation method of support of the catalyst.Its technical characterstic is to adopt at ambient temperature behind aluminium salt, ammonium salt and the inductor mixed grinding in encloses container according to given condition crystallization, obtain the Aluminum Carbonate Basic ammonium of specific morphology, obtain the novel method of Gradient distribution hole gama-alumina after drying, the roasting.
Background technology
In recent years, the World Refining processing industry is being faced with the day by day severe challenge of heaviness and in poor quality of crude resources.Catalytic cracking is that heavy oil (comprising residual oil) transforms one of main means of producing light-end products and industrial chemicals.But at present, catalytic cracking technology is not suitable for processing S〉0.6%, carbon residue 8%, heavy metal (Ni+V) charging of 20ppm, must pass through heavy oil feed and add hydrogen pretreatment, just can satisfy the demand.The mink cell focus hydrogenation is the most effective heavy oil feed preconditioning technique.The core of mink cell focus hydroprocessing technique is hydrotreating catalyst.Require to have opening, the pore structure that connectivity is good, the hole of distribution gradient, high hydrogenation activity for catalyst for hydroprocessing of heavy oil, to ensure the accessibility of catalytic active center, the hydrogenation activity of catalyzer is given full play to, reduce carbon distribution, the life-span of extending catalyst, the economy of raising process.The pore structure that connectivity is good is directly related with the pattern of alumina particle, the distribution of sizes of the hole of Gradient distribution and alumina particle is relevant, then the surface properties with aluminum oxide is relevant for hydrogenation activity.
γ-Al
2O
3The regulation and control of pattern have dual function for catalyst for hydroprocessing of heavy oil, and the one, the pore structure of regulation and control catalyzer.Commercial catalysts generally is to pile up the slit property pore structure that forms by subsphaeroidal aluminium oxide particles with alumina supporter, and the spheroidal particle of natural packing easily forms " ink bottle " type hole, and this pore structure connectivity is poor, easily causes macromole in absorption and the coking of bottom; The 2nd, the surface properties of different-shape alumina supporter is different, and is different from the effect of the active phase of institute load, and the activity of gained catalyzer is different from selectivity.Carrier of hydrogenating catalyst γ-Al
2O
3Can be transformed by its presoma topology, pattern and the size of control precursor can indirectly control carrier γ-Al
2O
3Pattern and size.The pattern of precursor aluminium carbonate ammonium is subjected to the impact of proportioning raw materials, Aging Temperature, digestion time etc., and low Aging Temperature is conducive to the corynebacterium precursor and generates, and higher aging temperature is conducive to fibrous precursor and generates.The anisotropy of precursor aluminium carbonate ammonium is so that can be by regulating synthesis condition, and the method for adding inductor is regulated and control its pattern and size.
Patent CN1401576A proposes aluminum hydroxide precipitation and tensio-active agent are obtained gama-alumina presoma hydrated aluminum oxide nanofiber through hydrothermal treatment consists, but preparation process is complicated, and dosage of surfactant too much makes production cost too high.Patent CN1727063A proposes hydrated aluminum oxide and the roasting of aluminium carbonate ammonium mixing moulding are obtained the gama-alumina of structure of double peak holes, but Liquid preparation methods aluminium carbonate ammonium process is loaded down with trivial details and difficult control.Patent CN1087289A proposes aqueous particulate thing moment with the gama-alumina presoma and places the high temperature roasting to make the moisture rapid evaporation of material, but gained gamma-aluminium oxide carrier pore volume, specific surface area less.
Patent US4448896 the selection carbon black is the physics expanding agent, and the physics expanding agents such as US4102822 proposition employing starch prepare macropore alumina supporter.Above-mentioned physics expanding agent mixes with the pseudo-boehmite dry glue powder, occupies the certain space volume in the bar shaped particle of extrusion, by roasting expanding agent is removed, and forms a certain amount of macropore.But adopt the physics expanding agent can cause catalyst pores distribution disperse, not concentrate physical strength and tap density reduction etc.Patent ZL92112511.9 the selection silicon sol, silicon and phosphorus compound etc. are the chemical enlargement agent, expanding agent and pseudo-boehmite generation chemical action.But when using the chemical enlargement agent separately, the peptization variation of pseudo-boehmite, thus operation brings certain difficulty to extruded moulding.CN1256969A etc. propose to adopt the aluminum oxide of two kinds of different shapes, and use physics expanding agent and two kinds of expanding agents of chemical enlargement agent, can obtain the suitable alumina supporter of performance, but preparation process are complicated, and raw materials cost and production cost are relatively high.
Summary of the invention
The method for preparing solid phase that the purpose of this invention is to provide a kind of Gradient distribution hole gama-alumina, the method are prepared pattern under without the expanding agent condition and are easy to regulation and control, have the gama-alumina than bigger serface and pore volume.
The preparation method of gama-alumina provided by the invention, comprise by solid phase method and prepare precursor aluminium carbonate ammonium, by the regulation and control proportioning raw materials, add the pattern that inductor etc. is controlled the Aluminum Carbonate Basic ammonium, finally obtain gama-alumina than bigger serface and pore volume 350～900 ℃ of aerobic roastings.
The preparation method's of the Gradient distribution hole gamma-aluminium oxide carrier that the inventive method provides outstanding advantages is that preparation process is simple, does not need special material, and raw materials cost and production cost are all lower.
The preparation process of alumina supporter of the present invention may further comprise the steps:
(1) aluminum nitrate, bicarbonate of ammonia and tensio-active agent are fully ground evenly, the ageing certain hour obtains precursor aluminium carbonate ammonium in the encloses container of specified temp;
(2) with mixing aftershaping with peptizing agent after (1) prepared precursor aluminium carbonate ammonium drying, generally can adopt the banded extruder extruded moulding;
(3) (2) are obtained that forming composition drying, aerobic roasting make final alumina supporter.
The described inductor of step (1) is the polyoxyethylene glycol of liquid form, and add-on is equivalent to 0.1～10.0% of aluminum nitrate weight.
The drying process of the described aluminium carbonate ammonium of step (2) is generally at 50～180 ℃ lower dry 1～20 hour.
The described roasting process of step (3) is 350～900 ℃ of lower roastings 1～10 hour.
The present invention uses precursor aluminium carbonate ammonium to decompose at a certain temperature the preparation gama-alumina.The aluminium carbonate ammonium produces gas, such as NH in decomposition course
3And CO
2, some macropores are made in the generation of these gases and the meeting of effusion.The pattern of simultaneous oxidation aluminium is that the pattern topology by the aluminium carbonate ammonium is transformed.Slower temperature rise rate is conducive to gaseous matter and overflows slowly in the roasting process, is difficult for causing carrier to cave in.The inventive method is simple, does not need to add any physics expanding agent.
Description of drawings
The drawing of accompanying drawing is described as follows:
Fig. 1 is nano bar-shape aluminium carbonate ammonium SEM figure.
Fig. 2 is the pore distribution figure of gama-alumina b.
Fig. 3 is the pore distribution figure of gama-alumina e.
Fig. 4 is the pore distribution figure of gama-alumina g.
Specific implementation method
Further specify the present invention program and effect below by embodiment, but be not construed as limiting the invention.
Embodiment 1
Take by weighing aluminum nitrate 30.0 grams, ammonium hydrogencarbonate 15.8 gram and polyoxyethylene glycol 0.3ml, mix and grinding 20min.80 ℃ of ageing 7h, 120 ℃ were descended dry 2 hours, and obtained precursor aluminium carbonate ammonium.Gains are obtained gama-alumina powder a at 500 ℃ of lower roasting 4h, and its physico-chemical property sees Table 1.
Embodiment 2
Take by weighing aluminum nitrate 10-50.0 gram, ammonium hydrogencarbonate 15.8 gram and polyoxyethylene glycol 0.3ml, mixed grinding 20min.80 ℃ of ageing 7h, 120 ℃ were descended dry 2 hours, and obtained the aluminium carbonate ammonium.Gains are obtained gama-alumina powder b at 500 ℃ of lower roasting 4h, and its physico-chemical property sees Table 1.
Embodiment 3
Take by weighing aluminum nitrate 10-50.0 gram ammonium hydrogencarbonate 15.8 gram grinding powders, mixed grinding 20min.80 ℃ of ageing 7h, 80 ℃ were descended dry 2 hours, and obtained precursor aluminium carbonate ammonium.Gains are obtained gama-alumina powder c at 500 ℃ of lower aerobic roasting 4h, and its physico-chemical property sees Table 1.
Embodiment 4
In embodiment 2, Aging Temperature changes 140 ℃ into, and ageing 7h behind the usefulness distilled water wash suction filtration, uses washing with alcohol again, and 120 ℃ were descended dry 2 hours, and obtained precursor aluminium carbonate ammonium.It is even to add the peptizing agent kneading, and kneading becomes plastic, is extruded into the bar of Φ 1.6mm at banded extruder, 120 ℃ lower dry 4 hours, then obtain gama-alumina d at 500 ℃ of lower roasting 4h, its physico-chemical property sees Table 1.
In embodiment 2, it is the cost example that Aging Temperature changes 60 ℃ into, obtains gama-alumina e, and its physico-chemical property sees Table 1.
Embodiment 6
In embodiment 2, it is the cost example that Aging Temperature changes 100 ℃ into, obtains gama-alumina f, and its physico-chemical property sees Table 1.
Embodiment 7
In embodiment 2, it is the cost example that Aging Temperature changes 120 ℃ into, obtains gama-alumina g, and its physico-chemical property sees Table 1.
Embodiment 8
In embodiment 2, it is the cost example that Aging Temperature changes 140 ℃ into, obtains gama-alumina h, and its physico-chemical property sees Table 1.
Table 1 adopts the physical properties of the alumina supporter of different methods preparation
The invention effect
Compared with prior art, the most outstanding technical characterictic of the present invention has been to adopt the solid state reaction synthetic technology to obtain the precursor aluminium carbonate ammonium of gama-alumina, and the roasting by the aluminium carbonate ammonium makes than bigger serface, Gradient distribution hole with than the gama-alumina of large pore volume.Simultaneously, solid state reaction mild condition, reaction process are more easy to control, fibrous, the corynebacterium aluminium carbonate ammonium that under the effect of inductor, is easy to get, in pyrolysis process by the CO on the low bindings such as hydrogen bond
3 2-And NH
4+Easily resolve into gas and leave away, and the Al-O chain of Al-O strong covalent bond combination is kept the formation gama-alumina, the gained gama-alumina can keep the basic pattern of precursor aluminium carbonate ammonium.Wide aperture provided by the invention gama-alumina can be used as distillate, especially the carrier of heavy-oil hydrogenation catalyst, hydrocracking catalyst.
Claims (1)
1. the method for preparing solid phase of a Gradient distribution hole gama-alumina, this method for preparing solid phase is aluminium salt, ammonium salt and inductor to be mixed under the condition that is incorporated in room temperature grind, obtain the controlled aluminium carbonate ammonium of pattern through ripening, with the roasting of aluminium carbonate ammonium obtain having the pore structure of Gradient distribution, than the gama-alumina of bigger serface and larger aperture, it is characterized in that the method is to be achieved by following steps:
1) aluminum nitrate, bicarbonate of ammonia and inductor are fully ground evenly, the ageing certain hour obtains precursor aluminium carbonate ammonium in the encloses container of specified temp; Inductor is the polyoxyethylene glycol of liquid form, and add-on is equivalent to 0.1～10.0% of aluminum nitrate weight;
2) with mixing aftershaping with peptizing agent after (1) prepared precursor aluminium carbonate ammonium drying, generally can adopt the banded extruder extruded moulding; The drying process of its aluminium carbonate ammonium is generally at 50～180 ℃ lower dry 1～20 hour;
3) (2) are obtained that forming composition drying, aerobic roasting make final alumina supporter; Roasting process is 350～900 ℃ of lower roastings 1～10 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103288242A CN102849763A (en) | 2012-09-07 | 2012-09-07 | Solid-phase preparation method of gamma-alumina with gradient distribution holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103288242A CN102849763A (en) | 2012-09-07 | 2012-09-07 | Solid-phase preparation method of gamma-alumina with gradient distribution holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102849763A true CN102849763A (en) | 2013-01-02 |
Family
ID=47396813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103288242A Pending CN102849763A (en) | 2012-09-07 | 2012-09-07 | Solid-phase preparation method of gamma-alumina with gradient distribution holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102849763A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907061A (en) * | 2015-05-26 | 2015-09-16 | 华东理工大学 | Preparation method of aluminum oxide with high temperature resistant and large specific surface area |
| CN105271334A (en) * | 2015-11-30 | 2016-01-27 | 成都乐氏化工工程有限公司 | Low-temperature solid-phase preparation method for nanometer aluminum oxide |
| CN105293547A (en) * | 2015-11-30 | 2016-02-03 | 成都乐氏化工工程有限公司 | Gamma-type nanometer aluminum oxide |
| CN105753027A (en) * | 2016-01-26 | 2016-07-13 | 广西壮族自治区化工研究院 | Method for preparing solid phases of gamma-Al2O3 carriers with high specific surface areas |
| CN108975362A (en) * | 2018-09-02 | 2018-12-11 | 兰州大学 | A kind of preparation method of fully decentralized aluminum oxide nanoparticle |
| CN109589935A (en) * | 2018-12-21 | 2019-04-09 | 中国华电科工集团有限公司 | A kind of carbon dioxide solid adsorbent and the preparation method and application thereof |
| CN109718815A (en) * | 2017-10-27 | 2019-05-07 | 中国石油化工股份有限公司 | A kind of carrier for hydrodesulfurization, catalyst and preparation method thereof |
| CN109718751A (en) * | 2017-10-27 | 2019-05-07 | 中国石油化工股份有限公司 | A kind of carrier for hydrodenitrogeneration, catalyst and preparation method thereof |
| CN111233017A (en) * | 2019-11-22 | 2020-06-05 | 中国石油大学(华东) | Process for synthesizing monoclinic phase basic ammonium aluminum carbonate and preparing porous alumina by pyrolysis of monoclinic phase basic ammonium aluminum carbonate |
| CN111686749A (en) * | 2019-03-13 | 2020-09-22 | 中国石油化工股份有限公司 | Preparation method of hydrogenation catalyst |
| CN112619637A (en) * | 2020-12-29 | 2021-04-09 | 中国华电科工集团有限公司 | Preparation method of heterogeneous solid catalyst for preparing ammonia by urea hydrolysis |
| CN113233484A (en) * | 2021-06-02 | 2021-08-10 | 西南石油大学 | Preparation method of high-temperature-resistant high-specific-surface-activity alumina |
| CN114436304A (en) * | 2020-10-19 | 2022-05-06 | 中国石油化工股份有限公司 | Preparation method of spherical alumina carrier |
| CN114984985A (en) * | 2022-07-04 | 2022-09-02 | 中国海洋石油集团有限公司 | Hydrodesulfurization catalyst and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1696060A (en) * | 2005-03-24 | 2005-11-16 | 上海大学 | Method for preparing Nano powder of alumina from industrial waste |
| CN101186325A (en) * | 2007-12-17 | 2008-05-28 | 中国铝业股份有限公司 | Method for preparing nano aluminum oxide powder |
| CN101880049A (en) * | 2010-07-22 | 2010-11-10 | 中国石油天然气股份有限公司 | Hierarchical mesoporous gamma-Al2O3Method for preparing nano-rod |
-
2012
- 2012-09-07 CN CN2012103288242A patent/CN102849763A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1696060A (en) * | 2005-03-24 | 2005-11-16 | 上海大学 | Method for preparing Nano powder of alumina from industrial waste |
| CN101186325A (en) * | 2007-12-17 | 2008-05-28 | 中国铝业股份有限公司 | Method for preparing nano aluminum oxide powder |
| CN101880049A (en) * | 2010-07-22 | 2010-11-10 | 中国石油天然气股份有限公司 | Hierarchical mesoporous gamma-Al2O3Method for preparing nano-rod |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907061A (en) * | 2015-05-26 | 2015-09-16 | 华东理工大学 | Preparation method of aluminum oxide with high temperature resistant and large specific surface area |
| CN105271334A (en) * | 2015-11-30 | 2016-01-27 | 成都乐氏化工工程有限公司 | Low-temperature solid-phase preparation method for nanometer aluminum oxide |
| CN105293547A (en) * | 2015-11-30 | 2016-02-03 | 成都乐氏化工工程有限公司 | Gamma-type nanometer aluminum oxide |
| CN105753027A (en) * | 2016-01-26 | 2016-07-13 | 广西壮族自治区化工研究院 | Method for preparing solid phases of gamma-Al2O3 carriers with high specific surface areas |
| CN109718815A (en) * | 2017-10-27 | 2019-05-07 | 中国石油化工股份有限公司 | A kind of carrier for hydrodesulfurization, catalyst and preparation method thereof |
| CN109718751A (en) * | 2017-10-27 | 2019-05-07 | 中国石油化工股份有限公司 | A kind of carrier for hydrodenitrogeneration, catalyst and preparation method thereof |
| CN109718815B (en) * | 2017-10-27 | 2021-04-06 | 中国石油化工股份有限公司 | Carrier and catalyst for hydrodesulfurization and preparation method thereof |
| CN108975362A (en) * | 2018-09-02 | 2018-12-11 | 兰州大学 | A kind of preparation method of fully decentralized aluminum oxide nanoparticle |
| CN109589935A (en) * | 2018-12-21 | 2019-04-09 | 中国华电科工集团有限公司 | A kind of carbon dioxide solid adsorbent and the preparation method and application thereof |
| CN111686749B (en) * | 2019-03-13 | 2022-07-12 | 中国石油化工股份有限公司 | Preparation method of hydrogenation catalyst |
| CN111686749A (en) * | 2019-03-13 | 2020-09-22 | 中国石油化工股份有限公司 | Preparation method of hydrogenation catalyst |
| CN111233017A (en) * | 2019-11-22 | 2020-06-05 | 中国石油大学(华东) | Process for synthesizing monoclinic phase basic ammonium aluminum carbonate and preparing porous alumina by pyrolysis of monoclinic phase basic ammonium aluminum carbonate |
| CN111233017B (en) * | 2019-11-22 | 2023-10-27 | 中国石油大学(华东) | Process for synthesizing monoclinic phase basic aluminum ammonium carbonate and preparing porous alumina by pyrolysis of monoclinic phase basic aluminum ammonium carbonate |
| CN114436304A (en) * | 2020-10-19 | 2022-05-06 | 中国石油化工股份有限公司 | Preparation method of spherical alumina carrier |
| CN114436304B (en) * | 2020-10-19 | 2024-02-06 | 中国石油化工股份有限公司 | Preparation method of spherical alumina carrier |
| CN112619637A (en) * | 2020-12-29 | 2021-04-09 | 中国华电科工集团有限公司 | Preparation method of heterogeneous solid catalyst for preparing ammonia by urea hydrolysis |
| CN113233484A (en) * | 2021-06-02 | 2021-08-10 | 西南石油大学 | Preparation method of high-temperature-resistant high-specific-surface-activity alumina |
| CN114984985A (en) * | 2022-07-04 | 2022-09-02 | 中国海洋石油集团有限公司 | Hydrodesulfurization catalyst and preparation method and application thereof |
| CN114984985B (en) * | 2022-07-04 | 2024-06-11 | 中国海洋石油集团有限公司 | Hydrodesulfurization catalyst and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102849763A (en) | Solid-phase preparation method of gamma-alumina with gradient distribution holes | |
| CN101087647B (en) | Method of synthesising a support catalyst for the production of carbon nanotubes | |
| CN105903488A (en) | Selective hydrogenation catalyst for producing biodiesel and preparation method and application of selective hydrogenation catalyst | |
| Huang et al. | MOF-derived well-structured bimetallic catalyst for highly selective conversion of furfural | |
| US6673743B2 (en) | Nickel catalysts on transition alumina | |
| CN102614934A (en) | Alumina carrier with composite pore structure and preparation method thereof | |
| US11534739B2 (en) | Lignite char supported nano-cobalt composite catalyst and preparation method thereof | |
| CN104785274B (en) | A kind of preparation method of this build of large aperture Ni Mo hydrogenation deoxidation catalysts | |
| CN102441368A (en) | Method for preparing hydro-demetalization catalyst for heavy oil | |
| CN111408400B (en) | Method for preparing ZSM-5 molecular sieve from waste fluid catalytic cracking catalyst | |
| KR101828965B1 (en) | Catalyst suitable for production of aviation kerosene from biomass fischer-tropsch synthesis oil and preparation method therefor | |
| CN109675543B (en) | Sepiolite-alumina composite carrier and high-temperature sintering resistant methanation catalyst using same | |
| Ameen et al. | Physicochemical properties of Ni-Mo/γ-Al2O3 catalysts synthesized via sonochemical method | |
| CN107442166A (en) | Hydrogenation catalyst suitable for producing biodiesel and its preparation method and application | |
| Hou et al. | Activated carbon aerogel supported copper catalysts for the hydrogenation of methyl acetate to ethanol: effect of KOH activation | |
| CN103212432A (en) | Catalyst for hydro-denitrification of inferior heavy distillate oil and preparation method and application of catalyst | |
| Subsadsana et al. | Synthesis and catalytic performance of bimetallic NiMo-and NiW-ZSM-5/MCM-41 composites for production of liquid biofuels | |
| EP2776164A1 (en) | Process for producing methanation catalyst and process for methanation of synthesis gas | |
| CN104001538A (en) | Nickel-loaded SBA-15 catalyst modified by cerium dioxide and preparation method and application of nickel-loaded SBA-15 catalyst modified by cerium dioxide | |
| Vallés et al. | Noble-bimetallic supported CMK-3 as a novel catalyst for hydrogenation of tetralin in the presence of sulfur and nitrogen | |
| JP2007117916A (en) | Alumina carrier, method for manufacturing the same and hydrogenation/demetallation catalyst using the same | |
| CN108786833A (en) | A kind of heavy-oil hydrogenation catalyst and preparation method thereof | |
| Chen et al. | Three-dimensionally ordered macro–mesoporous CoMo bulk catalysts with superior performance in hydrodesulfurization of thiophene | |
| Zhang et al. | Robust Co3O4 nanocatalysts supported on biomass-derived porous N-doped carbon toward low-pressure hydrogenation of furfural | |
| CN103638968B (en) | Preparation method and application method of non-noble metal reforming catalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130102 |