CN106311351B - A kind of spherical alumina support and preparation method thereof - Google Patents
A kind of spherical alumina support and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of spherical alumina supports and preparation method thereof, wherein method includes the following steps: the first raw material powder and binder are carried out mixing granulation by (1), forms the wet bulb that partial size is 0.1-3mm；(2) the second raw material powder is contacted with the wet bulb formed in step (1), then successively carries out predrying, drying, sieving and roasting again；Wherein, the first raw material powder is identical or not identical as the second raw material powder, respectively the mixture of boehmite or boehmite and boehmite.The intensity of the spherical alumina support prepared using method of the invention is significantly increased, and balling-up partial size is easy to control, time-consuming short；And preparation method of the invention is used, and it is easy to operate, due to being not added with the peptizing agents such as strong acid during granulating and forming, it can get biggish hole Rong Zaiti；And using method of the invention is carried out in mixed granulation machine, working environment is friendly.
Description
Technical field
The present invention relates to a kind of spherical alumina supports and preparation method thereof, and in particular, to a kind of spherical shape of high intensity
Alumina support and preparation method thereof.
Background technique
In recent years, while petroleum resources are increasingly reduced in poor quality, also day is stringenter for environmental regulation, so that needed for oil refining
Hydrogenation catalyst require it is superior activity and longer service life, and its production and use process as far as possible without dirt
Dye and realization clean operation.
Currently, common hydrogenation catalyst is the alumina support with aluminium oxide or containing a small amount of auxiliary agent, shape is with three leaves
Based on grass, butterfly and cylinder, this kind of catalyst has the characteristics that shaping efficiency is high, output is big.But due to its mobile performance
Difference, hardly possible realize uniform dense phase loading, cause catalyst bed unstable, generate channel.Spheric catalyst has mobile performance
Good, abrasion is small, with fashionable dress agent and unloads agent process conveniently.
The preparation method of common ball type carrier mainly has: rotational forming, oil ammonia column form, extruding pelletization forms and spraying
Drying and moulding etc..
Rotational forming is that powder, binder are added in the container of low speed rotation, and powder particles are in liquid bridge and capillary masterpiece
Together with lower reunion, micronucleus is formed, in the case where container rotates generated frictional force and rolling impact effect, gradually grown up, most
A certain size spheric granules is formed afterwards.The molding mode treating capacity is big, and device structure is compact, at low cost, easy to maintenance, operation
Simplicity, but grain density is not high, intensity difference, and dust is larger in operating process, and the balling-up time is long, large labor intensity.
Oil ammonia column molding is the characteristic using colloidal sol gelation under proper pH value and concentration, colloidal sol with droplet form,
It instills in the media such as kerosene, due to the effect of surface tension, shrinks balling-up.There is environmental pollution and damage human body are strong for the method
The problem of health.
Extruding pelletization molding is that powder, binder and auxiliary agent by kneading at plastic, are utilized banded extruder and cylinder
Orifice plate squeezes out cylindrical bars, through pelletizing at short cylindrical item, can get spherical particle after handling by trimmer.This method production
Spheric granules is higher than the density of rotational forming.But binder described in extrusion process is usually one kind of nitric acid, citric acid etc.
Or mixture, strong acid can occur stronger peptization with aluminium oxide and react, and cause the Kong Rong of carrier and specific surface loss serious, finally
The Kong Rong and specific surface area for leading to catalyst are reduced.
Spray drying forming is to be spray-dried the slurries of effective component and dispersant by spray dryer
And granulating.Micronized of its key technology in data solid, it is desirable that atomized drop is suitble to prepare several microns to tens microns micro-
Sphere catalyst.Big drop is such as sprayed by spray head, manufactured particle is usually hollow sphere.
Therefore, a kind of high-intensitive and Gao Kongrong alumina support how is prepared to need further to study and open
Hair.
Summary of the invention
The purpose of the invention is to overcome the intensity of the alumina support prepared in the prior art it is low it is frangible, have to environment
Pollution is harmful to human health and to the destructive serious defect of the Kong Rong and specific surface area of material powder, provides a kind of high
Spherical alumina support of intensity and preparation method thereof.
To achieve the goals above, the present invention provides a kind of spherical alumina support, wherein the spherical alumina support
Partial size is 0.1-3mm, specific surface area 200-300m2/ g, Kong Rongwei 0.75-0.95ml/g, most probable pore size 8-25nm, with
And the intensity of the spherical alumina support is 10-40N/.
The present invention provides a kind of methods of spherical alumina support, method includes the following steps:
(1) the first raw material powder and binder are subjected to mixing granulation, form the wet bulb that partial size is 0.1-3mm；
(2) wet bulb formed in the second raw material powder and step (1) is contacted, then successively carry out again through predrying, drying,
Sieving and roasting post-processing；
Wherein, the first raw material powder is identical or not identical as the second raw material powder, respectively boehmite or quasi-
The mixture of boehmite and boehmite.
The present invention prepares spherical alumina support by using quick mixing granulation method, in the present invention, will glue first
Knot agent is dissolved in the water at being 30-50 DEG C in temperature and is configured to the aqueous solution of binder；Then by the first raw material powder and binder
Aqueous solution in mixed granulation machine pass through the first mixed process and the second mixed process, under the action of mechanical force, powder
Particle is collided with each other, is drawn close, and nucleation is assembled under the action of capillary force, and the ball of formation is rolling and passing through in collision process
Stratification is coalesced and is gradually grown up, and is continuing to roll in collision process, ball is further compacted balling-up, forms partial size and is
The wet bulb of 0.1-3mm；Finally, again contact obtained wet bulb with the second raw material powder, until after the wet bulb no longer bonds, then successively
It carries out predrying, drying, sieving and roasting and obtains high-intensitive spherical alumina support carrier.
Using the intensity height of spherical alumina support prepared by method of the invention, balling-up partial size is easy to control, time-consuming short,
High income；And preparation method of the invention is used, and it is easy to operate, due to being not added with the peptizing agents such as strong acid during granulating and forming,
It can get biggish hole Rong Zaiti；And using method of the invention carried out in mixed granulation machine, and the mixed granulation machine
For closed container, working environment close friend.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Specific embodiment
Detailed description of the preferred embodiments below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
A kind of spherical alumina support is provided according to the present invention, wherein the partial size of the spherical alumina support can be
0.1-3.0mm, specific surface area can be 200-300m2With for 0.75-0.95ml/g, most probable pore size can be by/g, Kong Rongke
The intensity of 8-25nm and the spherical alumina support can be 10-40N/.
In accordance with the present invention it is preferred that the partial size of the spherical alumina support is 0.3-2.5mm, specific surface area 220-
280m2/ g, Kong Rongwei 0.80-0.90ml/g, the intensity of most probable pore size 12-18nm and the spherical alumina support
It is 25-35N/；In the present invention, more particularly to obtain, intensity is high and hole appearance is larger obtains spherical alumina support, Yi Jiyi
In the different spherical alumina support of acquisition partial size.
A kind of method of spherical alumina support is additionally provided according to the present invention, method includes the following steps:
(1) the first raw material powder and binder are subjected to mixing granulation, form the wet bulb that partial size is 0.1-3mm；
(2) the second raw material powder is contacted with the wet bulb formed in step (1), then successively carries out predrying, drying, mistake again
Sieve and roasting；
Wherein, the first raw material powder is identical or not identical as the second raw material powder, respectively boehmite or quasi-
The mixture of boehmite and boehmite.
According to the present invention, the binder can be high-molecular compound, specifically, in the present invention, the producing high-molecular
It closes object to be not particularly limited, can be the conventional selection of those skilled in the art.
According to the present invention, the binder can be used by concentration in the form of the aqueous solution for 0.1-2 weight %, preferably
Ground, the binder use in the form of concentration is the aqueous solution of 0.2-0.4 weight %；In the present invention, step (1) is being carried out
Before, by the binder be 30-50 DEG C in temperature at be dissolved in the water and stir evenly the binder for being configured to above-mentioned concentration
Aqueous solution；In the present invention, the binder stirring condition in warm water is dissolved in be not particularly limited, it can be in this field
It is carried out under conditions of technical staff is known, as long as the aqueous solution of uniform binder can be prepared.
According to the present invention, in step (1), the additional amount of the binder can be the first raw material powder dry weight
0.01 weight %-0.3 weight %, preferably 0.03 weight %-0.08 weight %；The total volume of the aqueous solution of the binder
It is 1-3 times, preferably 1.2-1.5 times of the first raw material powder dry weight；In the present invention, it is added by the first raw material powder
After mixed granulation machine, after starting device, the addition form of the aqueous solution of the binder is not particularly limited, and can be this field
Mode known to technical staff carries out, it is preferable that in the present invention, the aqueous solution of binder has been added at one time by pipeline
At.
According to the present invention, described to intend thin water aluminium and the thin water aluminium in the mixture of boehmite and boehmite
The molar ratio of stone can be 1:0.10-0.40, preferably 1:0.15-0.25.
According to the present invention, the physico-chemical parameter of the boehmite and the boehmite is not particularly limited, in this hair
In bright, it is preferable that the Kong Rongke of the boehmite with for 0.85-0.95ml/g, the Kong Rongke of the boehmite with for
0.95-1.05ml/g。
According to the present invention, in step (1), the additional amount of the second raw material powder can be the first raw material dried bean noodles base
The 10-40 weight % of weight, preferably 20-30 weight %.
According to the present invention, the process of the mixing granulation includes that the first mixed process successively carried out and second mixed
Journey, and the condition of first mixed process allows the partial size for the wet bulb to be formed for 0.1-3.0mm, that is, described second is mixed
Conjunction process is the progress of 0.1-3.0mm when in the partial size of the wet bulb formed after first mixed process, it is preferable that described first
The condition of mixed process makes the partial size for the wet bulb to be formed be 0.3-3.0mm, preferably 0.3-2.5mm.
According to the present invention, the condition of first mixed process may include: blend tool revolving speed be 1500-2000 turn/
Min, rotation tempering tank revolving speed are 30-40/min；The condition of second mixed process may include: that blend tool revolving speed is
100-400 turns/min, and rotation tempering tank revolving speed is 40-48/min；In the present invention, according to above-mentioned first mixed process and
The condition of two mixed processes carries out mixing granulation, can obtain intensity height, the spherical alumina support of Kong Rong great.
According to the present invention, the wet bulb formed in step (1) is contacted with the second raw material powder, after bonding again through predrying,
The condition of dry, sieving and roasting is not particularly limited, the predrying that can be well known to those skilled in the art, drying,
The condition of sieving and roasting carries out, in the present invention, it is preferred to, the pre-dried condition may include: that temperature is 30-70
DEG C, the time is 1-1.5 hours；The condition of the drying includes: that temperature is 30-130 DEG C, and the time is 1-2.5 hours；The roasting
Condition include: temperature be 400-800 DEG C, the time be 2-5 hours.
It according to the present invention, can be according to specifically needing the ball before then the spherical alumina support of formation being roasted
Shape alumina support is sieved to sieve as the bead of different-grain diameter range, for example, can with 6,8,10,12,14,16,18,20,
30,40,50,60 the polished standard screen nets carry out screening as the spherical alumina support of different grain size range, and then are easily obtained not
With the spherical alumina support of partial size.
Using the preparation method of spherical alumina support of the invention, can quick mixing granulation, principle are as follows: in machinery
Under the action of power, powder granule is collided with each other, is drawn close, and nucleation is assembled under the action of capillary force, and the ball of formation is rolling
It is gradually grown up in collision process by stratification or coalescence, is continuing to roll in collision process, ball is further compacted
Balling-up.Finishing from the addition of the aqueous solution of the first raw material powder and the second raw material powder and adhesive to the time used in balling-up is 0.5~1h,
Easy to operate, mixed granulation machine is closed container, and working environment is friendly, due to being not added with the peptizations such as strong acid during granulating and forming
Agent can get biggish hole Rong Zaiti.
The present invention will be described in detail by way of examples below.
In following embodiment, mixed granulation machine is purchased from Ai Lixu Machinery Co., Ltd.；Raw material intends thin water aluminium and the thin water
The boehmite product of aluminium stone Sinopec catalyst Co., Ltd production.
Embodiment 1
The present embodiment is used to illustrate the spherical alumina support of the method preparation using this invention
Raw material preparation: it is 0.85cm that weighing hole, which holds,3The first raw material powder boehmite 11kg of/g, by high-molecular compound
The aqueous solution of binder is made into the water that binder is dissolved in 14L at a temperature of 40 DEG C；Wherein, the additional amount of the binder is
0.01 weight % of the first raw material powder boehmite dry weight, the total volume of the aqueous solution of the binder is described
1 times of first raw material powder boehmite dry weight；
Then, by the aqueous solution of the first raw material powder boehmite and binder in mixed granulation machine mixing granulation,
In, the process of the mixing granulation includes the first mixed process and the second mixed process successively carried out, is mixed first first
Cheng Zhong, blend tool revolving speed are 1500 turns/min, and rotation tempering tank revolving speed is 30 turns/min, assemble when powder granule and are nucleated, when
When the partial size of the wet bulb formed after first mixed process is about 2.0-3.0mm, the second mixed process is carried out, i.e. adjustment is mixed
Conjunction tool revolving speed is 100 turns/min, and rotation tempering tank revolving speed is 40 turns/min, forms the wet bulb that partial size is 2.0-3.0mm；
The wet bulb that the partial size of above-mentioned acquisition is 02.0-3.0mm is contacted into (bonding) with the second raw material powder boehmite again,
Wherein, the additional amount of the second raw material powder is 20 weight % of the first raw material powder dry weight, is not glued to bead
When knot (adding up time-consuming 40min at this time), then carry out predrying, drying, sieving, roasting subsequent processing: where pre-dried condition
Include: temperature be 30 DEG C, time 1.5h；Dry condition includes: that temperature is 90 DEG C, time 2.5h；It is sieved using standard screen cloth,
Choose 6-10 mesh dry bulb；Then by 6-10 mesh dry bulb in 400 DEG C, roasting 2h；
As a result the spherical alumina support A that yield is 85% is obtained, the physico-chemical property for testing the carrier is as shown in table 1.
Embodiment 2
The present embodiment is used to illustrate the spherical alumina support of the method preparation using this invention
Raw material preparation: it is 0.95cm that weighing hole, which holds,3The first raw material powder boehmite 30kg of/g, by high-molecular compound
The aqueous solution of binder is made into the water that binder is dissolved in 18L at a temperature of 40 DEG C；Wherein, the additional amount of the binder is
2.0 weight % of the first raw material powder boehmite dry weight, the total volume of the aqueous solution of the binder is described
3 times of first raw material powder boehmite dry weight；
Then, by the aqueous solution of the first raw material powder boehmite and binder in mixed granulation machine mixing granulation,
In, which includes the first mixed process and the second mixed process successively carried out, first in the first mixed process
In, blend tool revolving speed is 2000 turns/min, and rotation tempering tank revolving speed is 40 turns/min, assembles when powder granule and is nucleated, works as warp
When the partial size of the wet bulb formed after first mixed process is about 0.1-0.8mm, the second mixed process is carried out, i.e. adjustment mixing
Tool revolving speed is 400 turns/min, and rotation tempering tank revolving speed is 48 turns/min, forms the wet bulb that partial size is 0.1-0.8mm；
The wet bulb that the partial size of above-mentioned acquisition is 0.1-0.8mm is contacted into (bonding) with the second raw material powder boehmite again,
Wherein, the additional amount of the second raw material powder is 30 weight % of the first raw material powder dry weight, is not glued to bead
When knot (adding up time-consuming 10mim at this time), then carry out predrying, drying, sieving, roasting subsequent processing: where pre-dried condition
Include: temperature be 70 DEG C, time 1.5h；Dry condition includes: that temperature is 130 DEG C, time 2.5h；Utilize standard screen cloth mistake
Sieve chooses 20-48 mesh dry bulb；Then by 20-48 mesh dry bulb in 800 DEG C, roasting 4h；
As a result the spherical alumina support B that yield is 92% is obtained, other physico-chemical properties such as 1 institute of table of the carrier is tested
Show.
Embodiment 3
The present embodiment is used to illustrate the spherical alumina support of the method preparation using this invention
Raw material preparation: it is 0.92cm that weighing hole, which holds,3The first raw material powder boehmite 11kg of/g, by high-molecular compound
The aqueous solution of binder is made into the water that binder is dissolved in 16L at a temperature of 40 DEG C；Wherein, the additional amount of the binder is
0.5 weight % of the first raw material powder boehmite dry weight, the total volume of the aqueous solution of the binder is described
2 times of first raw material powder boehmite dry weight；
Then, by the aqueous solution of the first raw material powder boehmite and binder in mixed granulation machine mixing granulation,
In, which includes the first mixed process and the second mixed process successively carried out, first in the first mixed process
In, blend tool revolving speed is 1800 turns/min, and rotation tempering tank revolving speed is 35 turns/min, assembles when powder granule and is nucleated, works as warp
When the partial size of the wet bulb formed after first mixed process is about 1.0-1.8mm, the second mixed process is carried out, i.e. adjustment mixing
Tool revolving speed is 300 turns/min, and rotation tempering tank revolving speed is 45 turns/min, forms the wet bulb that partial size is 1.0-1.8mm；
The wet bulb that the partial size of above-mentioned acquisition is 31.0-1.8mm is bonded with the second raw material powder boehmite again, wherein
The additional amount of the second raw material powder is 25 weight % of the first raw material powder dry weight, does not occur to bond (this to bead
When accumulative time-consuming 20min) when, then carry out predrying, drying, sieving, roast subsequent processing: where pre-dried condition includes:
Temperature is 50 DEG C, time 1h；Dry condition includes: that temperature is 100 DEG C, time 2h；It is sieved using standard screen cloth, chooses 10-
16 mesh dry bulbs；Then by 10-16 mesh dry bulb in 600 DEG C, roasting 3h；
As a result the spherical alumina support C that yield is 87 is obtained, the physico-chemical property for testing the carrier is as shown in table 1.
Embodiment 4
The present embodiment is used to illustrate the spherical alumina support of the method preparation using this invention
Prepare spherical alumina support in the same manner as shown in Example 1, institute the difference is that, by boehmite
The mixture of boehmite and boehmite is replaced with, and in the mixture of boehmite and boehmite, it is described quasi-
The weight ratio of thin water aluminium and the boehmite is 1:0.2；
As a result the spherical alumina support D that yield is 87% is obtained, the physico-chemical property for testing the carrier is as shown in table 1.
Comparative example 1
Aluminium oxide ball type carrier is prepared using rotational forming method
It the use of equipment is sugar coating machine, using Kong Rongwei 0.92cm3The raw material powder 30kg of/g, by high-molecular compound binder
1Kg is dissolved in 100L, in 40 DEG C of water, is sprayed into 40L solution in the sugar coating machine equipped with raw material powder 30kg using spray tube, preparation
Mother bulb, time-consuming 8h；
The mother bulb prepared is crushed, takes 30 mesh particle below as new mother bulb, by adding solution repeatedly
With raw material powder, particle is gradually grown up balling-up, when bead is about 1.8mm, adds up time-consuming 16h at this time, then be dried, dry,
Subsequent processing after sieving, roasting.Predrying: temperature is 70 DEG C, time 1.5h；Dry: temperature is 130 DEG C, time 2.5h；It utilizes
Standard screen cloth sieving, takes 10-12 mesh dry bulb；Roasting: by 10-12 mesh dry bulb in 600 DEG C, roasting 3h；
As a result spherical alumina support E is obtained, the physico-chemical property for testing the carrier is as shown in table 1.
Comparative example 2
Aluminium oxide ball type carrier is prepared using the extruding pelletization method of forming
Using Kong Rongwei 0.92cm3The dry boehmite 120kg of/g, 2.5 liter 65% of concentrated nitric acid is dissolved in 85L water
As adhesive, extrusion is carried out using the cylindrical orifice plate of D2.2mm, pelletizing obtains spherical particle after shaped machine processing, into
Row is dry, drying, is sieved, subsequent processing after roasting；
Wherein, it is 70 DEG C that pre-dried condition, which includes: temperature, time 1.5h；Dry condition includes: that temperature is 130 DEG C,
Time 2.5h；Then, it is sieved using standard screen cloth, takes 10~12 mesh dry bulbs；Roasting: by 10~12 mesh dry bulbs in 600 DEG C, roasting
3h,
As a result spherical alumina support F is obtained, the physico-chemical property for testing the carrier is as shown in table 1.
Table 1
As known to the result of embodiment 1-4, comparative example 1-2 and table 1: the spherical oxidation prepared using method of the invention
The intensity of alumina supporter significantly increases, and specific surface area loss is less, and balling-up partial size is easy to control, time-consuming short, high income；And using this
The preparation method of invention, it is easy to operate, due to being not added with the peptizing agents such as strong acid during granulating and forming, it can get biggish Kong Rong
Carrier；It and is to be carried out in mixed granulation machine, and the mixed granulation machine is closed container, building ring using method of the invention
Border is friendly.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (12)
1. a kind of spherical alumina support, which is characterized in that the partial size of the spherical alumina support is 0.1-3mm, specific surface area
For 200-300m2/ g, Kong Rongwei 0.75-0.95ml/g, most probable pore size 8-25nm and the spherical alumina support it is strong
Degree is 25-35N/；
Wherein, the preparation method of the spherical alumina support, method includes the following steps:
(1) the first raw material powder and binder are subjected to mixing granulation, form the wet bulb that partial size is 0.1-3mm；
(2) wet bulb formed in the second raw material powder and step (1) contact, then again successively progress predrying, drying, sieving with
And roasting；
Wherein, the first raw material powder is identical or not identical as the second raw material powder, respectively boehmite or intends thin water
The mixture of aluminium stone and boehmite.
2. spherical alumina support according to claim 1, wherein the partial size of the spherical alumina support is 0.3-
2.5mm, specific surface area 220-280m2/ g, Kong Rongwei 0.8-0.9ml/g, most probable pore size 12-18nm.
3. a kind of method for preparing spherical alumina support of any of claims 1 or 2, method includes the following steps:
(1) the first raw material powder and binder are subjected to mixing granulation, form the wet bulb that partial size is 0.1-3mm；
(2) wet bulb formed in the second raw material powder and step (1) contact, then again successively progress predrying, drying, sieving with
And roasting；
Wherein, the first raw material powder is identical or not identical as the second raw material powder, respectively boehmite or intends thin water
The mixture of aluminium stone and boehmite.
4. according to the method described in claim 3, wherein, the binder is high-molecular compound.
5. according to the method described in claim 3, wherein, in the mixture of boehmite and boehmite, it is described intend it is thin
The weight ratio of water aluminium and the boehmite is 1:0.1-0.4.
6. the method according to claim 3 or 5, wherein the Kong Rongwei 0.85-0.95ml/g of the boehmite, institute
State the Kong Rongwei 0.95-1.05ml/g of boehmite.
7. the method according to claim 3 or 4, wherein the binder is with the aqueous solution that concentration is 0.1-2 weight %
Form uses.
8. according to the method described in claim 3, wherein, the additional amount of the binder is the first raw material powder dry weight
0.01 weight %-0.3 weight %, the total volume of the aqueous solution of the binder is the 1- of the first raw material powder dry weight
3 times.
9. according to the method described in claim 3, wherein, in step (2), the additional amount of the second raw material powder is described the
The 10-40 weight % of one raw material powder dry weight.
10. according to the method described in claim 3, wherein, in step (1), the process of the mixing granulation include successively into
Capable the first mixed process and the second mixed process, and the condition of first mixed process makes the partial size of the wet bulb to be formed to be
0.3-3mm。
11. according to the method described in claim 10, wherein, the condition of first mixed process includes: blend tool revolving speed
Turn/min for 1500 turns/min-2000, rotation tempering tank revolving speed is that 30 turns/min-40 turns/min；Second mixed process
Condition includes: that blend tool revolving speed is that 100 turns/min-400 turns/min, and rotation tempering tank revolving speed is 40 turns/min-48/min.
12. according to the method described in claim 3, wherein, in step (2), the pre-dried condition includes: that temperature is
30-70 DEG C, the time is 1-1.5 hours；The condition of the drying includes: that temperature is 30-130 DEG C, and the time is 1-2.5 hours；Institute
It is 400-800 DEG C that the condition for stating roasting, which includes: temperature, and the time is 2-5 hours.
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|---|---|---|---|---|
| JP4494254B2 (en) * | 2004-03-12 | 2010-06-30 | コスモ石油株式会社 | Catalyst for producing hydrogen from hydrocarbon, method for producing the catalyst, and method for producing hydrogen using the catalyst |
| CN103041868A (en) * | 2011-10-17 | 2013-04-17 | 中国石油化工股份有限公司 | Preparation method of spherical catalyst carrier |
| CN103785479A (en) * | 2012-11-01 | 2014-05-14 | 中国石油化工股份有限公司 | Alumina carrier and preparation method thereof |
-
2015
- 2015-06-16 CN CN201510333550.XA patent/CN106311351B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4494254B2 (en) * | 2004-03-12 | 2010-06-30 | コスモ石油株式会社 | Catalyst for producing hydrogen from hydrocarbon, method for producing the catalyst, and method for producing hydrogen using the catalyst |
| CN103041868A (en) * | 2011-10-17 | 2013-04-17 | 中国石油化工股份有限公司 | Preparation method of spherical catalyst carrier |
| CN103785479A (en) * | 2012-11-01 | 2014-05-14 | 中国石油化工股份有限公司 | Alumina carrier and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| Comparison of preparation methods for iron-alumina oxygen carrier and its reduction kinetics with hydrogen in chemical looping combustion;Haibo Zhao et al.;《Asia-Pacific Journal of Chemical Engineering》;20140221;第9卷;第610-622页 |
| 球形氧化铝制备过程中影响因素的研究;马群 等;《无机盐工业》;20061130;第38卷(第11期);第26-28、47页 |
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