CN107543765A - A kind of wear device of microspherical catalyst and the measurement system of microspherical catalyst tear strength - Google Patents
A kind of wear device of microspherical catalyst and the measurement system of microspherical catalyst tear strength Download PDFInfo
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Abstract
The invention discloses the measurement system of a kind of wear device of microspherical catalyst and microspherical catalyst tear strength, the wear device includes vibration container (101), the wear-resisting bead (102) that can be inserted in the vibration container (101) and the vibration apparatus (103) for driving the vibration container (101) vibration, wherein, the bottom of the vibration container is provided with sieve aperture net (107).The device and system of the present invention are simple to operation, and can determine the vibration abrasion index of microspherical catalyst within a short period of time using measurement system provided by the invention, so as to know the intensity of microspherical catalyst.
Description
Technical field
The present invention relates to the measurement system of a kind of wear device of microspherical catalyst and microspherical catalyst tear strength.
Background technology
Microspherical catalyst, particularly in fluid catalytic cracking (FCC) course of reaction, in the microspherical catalyst of fluidized state
Particle needs constantly to be circulated between reaction and regenerating unit, between catalyst granules, particle and fluidizing agent and dress
All possibility are rubbed, hit between putting side wall.Abrasion can rise the fine powder content of FCC catalyst, and fine powder is taken out of with product oil gas
And catalyst stack less is caused, and then cause contamination of products and the increase of catalyst consumption cost, and the fluidisation matter of system can be caused
Amount deteriorates, and influences the normal operation of device.Therefore can the wear-resisting and crashworthiness hit intensity of catalytic cracking catalyst have turned into it and answer
For an industrial important measurement index.Analysis and characterization and mill by laboratory to catalyst physical chemical property
Intensity experiment research is damaged, the abrasional behavior of catalyst in actual use can be predicted to a certain extent, this is to instructing
The preparation process of catalyst, the construction cycle for shortening catalyst have important practical significance.
Fluidized state of the method main analog catalyst of measure catalytic cracking catalyst intensity in reaction unit at present,
As the widely used straight tube of domestic oil refining catalyst production unit wears method (Shi Ke institutes Q/SH3360 208-2012 and sinopec
Catalyst Co.：Q/SH 349909), Unite States Standard ASTM D5757-00 air gunite, straight tube abrasion method and air injection
Method (Weeks S A, Dumbill P.Methods speeds FCC catalyst attrition resistance
determination.Oil Gas J,1990,88(16):38) etc..Wherein, straight tube abrasion method and air are penetrated agar diffusion method and mainly determined
The frictional strength of the abrasion of catalyst particles intergranular and catalyst and wall under high velocity air, speed, air to air injection
Enter the equipment such as big low-angle and the settler size in hole aperture and operating condition requires higher.Injection agar diffusion method mainly uses high speed gas
The shock and friction for flowing down catalyst and wall are worn to catalyst, equally require very high to high velocity air inlet mass.
In addition, three of the above method minute is longer, first two method generally requires 5 hours, during the operation of last method
Between greatly shorten, but also want 1 hour, for the monitoring of intensity on Catalyst Production line, the time is still longer.
The content of the invention
It is an object of the invention to provide the measure of a kind of wear device of microspherical catalyst and microspherical catalyst tear strength
System, device and system of the invention are simple to operation, and can be within a short period of time using measurement system provided by the invention
The vibration abrasion index of microspherical catalyst is determined, so as to know the intensity of microspherical catalyst.
To achieve these goals, the present invention provides a kind of wear device of microspherical catalyst, and the wear device includes shaking
Visibly moved device, the wear-resisting bead that can be inserted in the vibration container and the vibration apparatus for driving the vibration container to vibrate, wherein, it is described to shake
The bottom of visibly moved device is provided with sieve aperture net.
Preferably, the vibration container from top to bottom includes separable top cover, vessel and bottom, the container sheet
To insert the wear-resisting bead and catalyst, bottom is connected by the sieve aperture net with the bottom for body open top.
Preferably, the vibration container is cylindrical shape, and the size of the sieve aperture net mesh is 10-40 microns, the vibration
Apparatus is shaking platform；Or the powered support including vibrating member and with vibrating member drive connection, the powered support are socketed in
Outside the vibration container.
Preferably, mesh is shaped as circular or square.Sieve aperture net can be woven wire cloth, perforated plate or electricity into
Type thin plate sieve aperture, the size of sieve aperture can refer to GB/T 6005-2008.
Preferably, the wear-resisting bead is selected from least one of steel ball, zirconia ball and silicon nitride ball.
Preferably, the ball density of the wear-resisting bead is 3-21 grams/cc, a diameter of 1- of the wear-resisting bead
10 millimeters.
Preferably, the vibration container is cylindrical shape, and the ball density of the wear-resisting bead is 6-8 grams/cc, institute
State a diameter of 4-7 millimeters of wear-resisting bead.
Preferably, the ball density of the wear-resisting bead is 7.6 ± 0.3 grams/cc, the diameter of the wear-resisting bead
For 5-6 millimeters.
The present invention also provides a kind of measurement system of microspherical catalyst tear strength, and the system includes weighing device and Ben Fa
Bright provided wear device, the weighing device are used to weigh to the microspherical catalyst material by the sieve aperture net；
The weighing device is located at sieve aperture side off the net, and the measurement system also includes being connected to the weighing device and described
Cover cylinder between the bottom of vibration container, the cover cylinder include the annular sidewall formed by flexible material.
The present invention also provides a kind of measurement system of microspherical catalyst tear strength, and the system includes weighing device and Ben Fa
Bright provided wear device, the weighing device are used to weigh to the microspherical catalyst material by the sieve aperture net.
Catalyst measurement system provided by the invention can be used for the vibration abrasion index for determining catalyst, i.e., using wear-resisting
Bead carries out lasting collision to catalyst, measure be catalyst vibration abrasion index, although mechanism has with existing method
Institute is different, but has relevance for microspherical catalyst, the vibration abrasion index with straight tube abrasion index, still can be based on
The measurement system of the present invention quickly obtains the strength information and straight tube mill of catalyst using the method for measure vibration abrasion index
Damage index.And existing three kinds of methods are compared, based on the assay method of measurement system of the present invention, minute substantially reduces, technique
It is simple, convenient, operation labor intensity is greatly reduced, improves operating efficiency.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is for providing a further understanding of the present invention, and a part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of structural representation of embodiment of microspherical catalyst wear device of the present invention；
Fig. 2 is a kind of structural representation of embodiment of microspherical catalyst tear strength measurement system of the present invention；
Fig. 3 is a kind of structural representation of embodiment of microspherical catalyst tear strength measurement system of the present invention；
Fig. 4 is a kind of structural representation of embodiment of powered support of the present invention；
Fig. 5 is the embodiment of the present invention using the catalyst vibration abrasion index of present system measure and the straight tube of catalyst
The linearly related figure of abrasion index.
Description of reference numerals
101 vibration container, the 102 wear-resisting top cover of 103 vibration apparatus of bead 104
The weighing device of 105 vessel, 106 bottom, 107 sieve aperture net 108
The cover cylinder of 109 powered support 110
Embodiment
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
As shown in figure 1, the present invention provides a kind of wear device of microspherical catalyst, the wear device includes vibration container
101st, the wear-resisting bead 102 that can be inserted in the vibration container 101 and the vibration apparatus 103 for driving the vibration container 101 to vibrate, its
In, the bottom of the vibration container is provided with sieve aperture net 107, sieve aperture net 107 can be woven wire cloth, perforated plate or electricity into
Type thin plate sieve aperture, the size of sieve aperture can refer to GB/T 6005-2008.The size people in the art of the mesh of sieve aperture net 107
Member can determine as needed, and in general mesh size should be homogeneous, and its size can be 10-40 microns, and preferably 20 is micro-
Rice, mesh can be square or circular, preferably circular, the diameter in the big little finger of toe circular net hole of mesh or squared mesh
The length of side.
As shown in figure 1, the vibration container 101 can from top to bottom include separable top cover 104, vessel 105
With bottom 106, the vessel 105 can be with open top to insert the wear-resisting bead and catalyst, and bottom can pass through
The sieve aperture net 107 connects with the bottom 106.Bead and catalyst can be added by open top.In other implementations
In mode, opening can also be arranged on to the other positions of vessel.Vessel 105 and bottom 106 are Hard link, container
Body 105 vibrates together with bottom 106.
As shown in figure 3, the bottom of vibration container 101 is provided with cover cylinder 110, vibration container 101 passes through sieve aperture net and cover cylinder
110 directly connect, and the cover cylinder 110 can include the annular sidewall that is formed by flexible material, the flexible material can for without
Plastic cloth of electrostatic etc., i.e. vibration container 101 are flexible coupling with cover cylinder 110, and when vibration container 101 is shaken, cover cylinder 110 is quiet
Put, or be directly statically placed on balance.
As shown in figures 1 and 3, the vibration container 101 can be cylindrical shape, and its length, width and height has no specifically limited a, need
Vibration container is wanted to insert enough catalyst, the volume and internal diameter of certain vibration container 101 are preferably in certain model
Within enclosing, if volume and internal diameter are too small, the microspherical catalyst that can be inserted is few, and catalyst under identical vibration abrasion treatment conditions
Abrasion is more severe, and error is larger；If volume and internal diameter are excessive, the collision probability of wear-resisting bead and catalyst reduces, and extends mill
Undermine the time of subsequent measurements.Further, the internal diameter (interior diameter, similarly hereinafter) of the vibration container can be at least wear-resisting spheroid
3 times of diameter, 4-10 times of preferably wear-resisting sphere diameter.
In order that wear-resisting bead can abrasive catalyst, the wear-resisting bead 102 can be selected from steel ball, zirconia ball and
At least one of silicon nitride ball, it (can be empty that the ball density of the wear-resisting bead 102, which can be 3-21 grams/cc,
The heart, as long as ball density is more than 3 grams/cc, ball density can use conventional drainage to be measured), be preferably
6-8 grams/cc, more preferably 7.6 ± 0.3 grams/cc, the diameter of the wear-resisting bead 102 can be 1-10 millis
Rice, preferably 4-7 millimeters, more preferably 5-6 millimeters, wear-resisting bead can be single size or two or more chis
The combination of very little wear-resisting bead, as 6mm and 2mm beads, ratio are unlimited.The wear-resisting bead can be single metal ball, also may be used
To be alloying pellet or oxidized metal ball etc., such as zirconium oxide entity ball and 304 steel balls.
Vibration apparatus can make vibration container be in vibrational state, direction of vibration can be up and down, left and right or tiltedly on,
Movement locus can be linear reciprocation or circle or ellipse etc., preferably up-down vibration mode.A kind of specific embodiment party
Formula, as shown in Fig. 2 the vibration apparatus 103 are shaking platform, the shaking platform is well known to those skilled in the art, this
Invention repeats no more；Another embodiment, as shown in figure 4, vibration apparatus 103 include vibrating member and passed with the vibrating member
The powered support 109 of dynamic connection, the powered support 109 are socketed in outside the vibration container, and the vibrating member is this area skill
(such as can be mechanical vibrator, electronic vibration part) known to art personnel, for making vibration container be in vibrational state, this hair
It is bright to repeat no more.
The present invention also provides a kind of measurement system of microspherical catalyst tear strength, and the system includes the He of weighing device 108
Wear device provided by the present invention, the weighing device 108 are used for the microspherical catalyst material by the sieve aperture net 107
Weighed.
According to the present invention, the weighing device 108 is well known to those skilled in the art, and can be less than for scale division value
0.001 gram of electronic balance.As shown in figure 3, the weighing device 108 is preferably placed at sieve aperture side off the net, and the survey
Determine the cover cylinder 110 that system further preferably includes being connected between the bottom of the weighing device 108 and the vibration container 103, institute
The annular sidewall that is formed by flexible material can be included by stating cover cylinder 110, the flexible material can for without plastic cloth of electrostatic etc.,
So that when the wear device carries out abrasive catalyst using vibrating member and powered support as vibration apparatus, wear to obtain urges
Agent fine powder can be fallen directly into the cover cylinder 110, the weighing without influenceing weighing device, realize the real-time prison of wearing treatment
Survey, certainly, when carrying out abrasive catalyst, cover cylinder 110 can also be not interposing on weighing device.
Based on the measurement system of the present invention, the present invention provides a kind of assay method of microspherical catalyst tear strength, the survey
The method of determining includes：A, it is m by weight0Microspherical catalyst be placed in the vibration container 101 of wear device；Wherein, the vibration
Container 101 from top to bottom includes separable top cover 104, vessel 105 and bottom 106, and the top of vessel 5 is opened
Mouthful, bottom is connected by sieve aperture net 107 with the bottom 106, and the microspherical catalyst is placed in the top cover 104 and the container
In the space that body 105 is formed；B, the vibration container 101 for putting into microspherical catalyst carries out vibration pretreatment, falls fine powder
Enter in bottom 106, and the weight of fine powder in bottom 106 is weighed using weighing device 108, be designated as m1；C, will be at least one wear-resisting
Bead 102 is placed in the space that the top cover 104 and the vessel 105 are formed, and puts into microspherical catalyst and wear-resisting
The vibration container 101 of bead 102 carries out vibration abrasion processing, fine powder is fallen into bottom 106, and is claimed using weighing device 108
The weight of fine powder in bottom 106 is measured, is designated as m2；D, the vibration abrasion index KAI of microspherical catalyst is calculated using calculation formula I,
The calculation formula I is：KAI=(m2-m1)/(m0-m1), vibration abrasion index is bigger, then illustrates that the intensity of microspherical catalyst is got over
It is low.
According to the present invention, the condition of the vibration pretreatment can be：Vibration frequency is 80-300 beats/min, and the time is
More than zero to 30 minute (i.e. vibrate pretreatment can simply vibrate it is several under, catalyst fines is passed through sieve aperture net), shake
Width is 0.1-2 centimetres；The condition of vibration abrasion processing can be：Vibration frequency is 80-400 beats/min, preferably 120-
400 beats/min, more preferably 280 ± 20 beats/min, time are 1-30 minutes, preferably 6-10 minutes, more preferably 6 ±
0.5 minute, amplitude was 0.1-2 centimetres, preferably 0.5-2 centimetres, more preferably 1-1.5 centimetres.Vibration pretreatment and vibromill
The direction of vibration present invention of damage processing is not specifically limited, and can be horizontal, vertical, curve or be vibrated along a fixation locus, can
To be that two dimensional motion can also be three-dimensional motion, wear-resisting bead can be made to carry out brinelling to catalyst, be preferably up and down
Motion, microspherical catalyst is worn using the gravity of wear-resisting bead whereabouts.Vibration container is when being vibrated, Ke Yishi
It is vertically arranged or is horizontally disposed with vertically vertically, the present invention has no strict demand.
The assay method of the present invention is easier, determines less microspherical catalyst, you can obtains accurately catalysis
The part by weight of agent tear strength, the weight of microspherical catalyst and wear-resisting bead can be 1：(0.2-20), preferably 1:(6-
12), more preferably 1：(10 ± 1), the catalyst loaded in vibration container can according to container size and vibration abrasion efficiency come
It is configured.
A kind of embodiment, the vibration container 101 are cylindrical shape (in bottom screens net 107 and vessel 105
Angle between wall can be right angle, or circular arc, the preferably circular arc isometrical with wear-resisting bead, ensure that catalyst is equal
Have an opportunity to collide with bead), its length, width and height has no specifically limited, it is only necessary to which vibration container can insert enough catalyst i.e.
Can, the volume and internal diameter of certain vibration container 101 if volume and internal diameter are too small, can insert preferably within limits
Microspherical catalyst it is few, and catalyst abrasion is more severe under identical vibration abrasion treatment conditions, and error is larger；If volume and internal diameter
Excessive, then the collision probability of wear-resisting bead and catalyst reduces, and extends the time of abrasion and subsequent measurements, it is preferable that when described
Wear-resisting bead is inserted in vessel, all wear-resisting if wear-resisting bead is distributed in into vessel bottom surface as a single layer
The projected area of bead accounts for more than half of vessel base area, preferably accounts for more than 3/4ths；The wear-resisting bead with
The formal distribution of individual layer refers to be in contact with vessel bottom surface, more without accumulation between wear-resisting bead in vessel bottom surface
Specifically, refer to that all wear-resisting beads all can be positioned on the bottom surface of vessel when vessel is stood,
One layer is formed on bottom surface, and all beads directly contact with container bottoms.Further, the internal diameter of the vibration container can
To be at least the 3 of wear-resisting the small ball's diameter times, 4-10 times of preferably wear-resisting the small ball's diameter.
A kind of embodiment, microspherical catalyst is poured into vibration container, and microspherical catalyst is paved with vibration container
During bottom surface, the highest piling height of catalyst is more than 0 and is no more than 1cm, height of the preferred catalyst at any place of container bottoms
1/2 of degree not higher than wear-resisting the small ball's diameter.
Vibration apparatus can make vibration container be in vibrational state, a kind of embodiment, as shown in Fig. 2 described shake
Dynamic apparatus 103 is shaking platform, and the shaking platform is well known to those skilled in the art, and the present invention repeats no more；It is another
Embodiment, as shown in figure 4, vibration apparatus 103 include vibrating member and the powered support with vibrating member drive connection
109, the powered support 109 is socketed in outside the vibration container, and the vibrating member is well known to those skilled in the art, such as
Can be mechanical vibrator, electronic vibration part etc., for making vibration container be in vibrational state, the present invention repeats no more.
The wear-resisting bead 102 can be selected from least one of steel ball, zirconia ball and silicon nitride ball, it is described wear-resisting
The ball density of bead 102 can be 3-21 grams/cc, preferably 6-8 grams/cc, more preferably 7.6 ± 0.3
Gram/cc, the diameter of the wear-resisting bead 102 can be 1-10 millimeters, preferably 4-7 millimeters, and more preferably 5-6 is in the least
Rice；Wear-resisting bead can be the combination of single size or the wear-resisting bead of two or more sizes, as 6mm is small with 2mm
Ball, ratio are unlimited.The wear-resisting bead can be single metal ball or alloying pellet or oxidized metal ball etc., be preferably
Steel ball.
The weighing device 108 is well known to those skilled in the art, as shown in figure 3, can be that scale division value is less than 0.001
Gram electronic balance.
In all of the embodiments of the present invention, before measure, the inwall of vibration container and/or wear-resisting bead can carry out removing quiet
Electric treatment, for example with instrument processing or ground wire etc. is destaticed, so that catalyst fines are not adsorbed, reduce evaluated error.Survey
After fixed, wear-resisting bead can use craft to pick with microspherical catalyst, sieve method and be separated the methods of magnetic-adsorption method.
Well known to those skilled in the art to be in all of the embodiments of the present invention, microspherical catalyst refers to using spraying
The catalyst that dry mode is molded, its purposes present invention is simultaneously unrestricted, such as can be catalytic cracking catalyst, absorption desulfurization
Catalyst, dehydrogenation, methanol-to-olefin catalyst or preparing gasoline by methanol catalyst.In addition, it is necessary to explanation, in order to survey
Fixed needs, the microspherical catalyst can be industrial equilibrium catalyst, fresh catalyst or be roasted by 450-800 DEG C of air
Burning or the fresh catalyst of hydro-thermal process 1-6 hours, are calcined 1 hour preferably through 650 DEG C or so.Preferably, the catalyst
For catalyst body (>60%) it is aluminum oxide and/or the catalyst of silica, the particle diameter (particle diameter distribution of the microspherical catalyst
Scope, not including 0 micron) can be 0-400 microns, preferably 0-160 microns, median can be 50-200 microns, excellent
Elect 50-90 microns as, apparent density can be 0.6-0.9 grams per milliliters.
An advantage of the present invention is, is worn using the vibration abrasion index that the method for the present invention determines and straight tube
Index linear is related, and therefore, the present invention also provides a kind of preparation method of microspherical catalyst straight tube abrasion index, this method bag
Include：According to the assay method of microspherical catalyst tear strength provided by the present invention, vibration abrasion index is obtained；Wherein, it is described
Vibration abrasion processing condition be：Vibration frequency is 120-400 beats/min, and the time is 6-10 minutes, and amplitude is 0.5-2 centimetres；
The part by weight of the weight of the microspherical catalyst and wear-resisting bead is 1：(6-12)；The spheroid of the wear-resisting bead (102) is close
Spend for 6-8 grams/cc, a diameter of 4-7 millimeters of the wear-resisting bead 102；When the wear-resisting bead 102 inserts container sheet
In body, if wear-resisting bead 102 is distributed in into vessel bottom surface as a single layer, the perspective plane of all wear-resisting beads 102
Product accounts for more than half of vessel base area；The straight tube abrasion index AI of microspherical catalyst is calculated according to calculation formula II,
Calculation formula II is：AI=kKAI+b, k are linear regression coeffficient, and b is linear regression constant, 0.08≤k≤0.5, -2≤b
≤1；The straight tube abrasion index refers to using China Petroleum ＆ Chemical Corporation Research Institute of Petroleum enterprise mark Q/
The abrasion index that the 208-2012 of SH 3360 assay method is measured.
The vibration abrasion index that the present invention determines is subjected to linear correlation with the straight tube abrasion index directly determined, it is linear to return
Coefficient is returned to be more than 0.8, so as to which straight tube abrasion index directly is calculated from vibration abrasion index using lineal relevant formula.
And under the following conditions, linear regression coeffficient is more than 0.9, and the condition of the vibration abrasion processing is：Vibration frequency is 280 ± 20
Beat/min, the time is 6 ± 0.5 minutes, and amplitude is 1-1.5 centimetres；The weight of the weight of the microspherical catalyst and wear-resisting bead
Ratio is 1：(10±1)；The ball density of the wear-resisting bead (102) is 7.6 ± 0.3 grams/cc, the wear-resisting bead
(102) a diameter of 5-6 millimeters；When the wear-resisting bead 102 is inserted in vessel, if by wear-resisting bead 102 with individual layer
Formal distribution at vessel bottom surface, the projected areas of all wear-resisting beads 102 account for vessel base area four/
More than three；0.10≤k≤0.15, -1≤b≤0.
The present invention will be further illustrated by embodiment below, but the present invention is not therefore subject to any restriction.
The embodiment of the present invention uses data analysis-recurrence function calculating under the softwares of Microsoft EXCEL 2010 linear
Coefficient correlation and linear regression coeffficient k and linear regression constant b.
Catalyst is that (particle diameter accounts for catalytic cracking catalyst CRMI-2-1 in 0-20 microns used by the embodiment of the present invention
1.6 mass %, median are 73 microns), (particle diameter accounts for 1.5 mass % to CRMI-2-2 in 0-20 microns, and median is 71 micro-
Rice), HGY-A (particle diameter accounts for 0.9 mass % in 0-20 microns, and median is 71 microns), (particle diameter accounts for CRSC in 0-20 microns
0.5 mass %, median are 72 microns), (particle diameter accounts for as 1.9 mass % CDOS in 0-20 microns, and median is 65 micro-
Rice).The particle diameter distribution of 95 mass % catalyst is in 10-140 micrometer ranges, and median is between 60-80 microns.
Embodiment
5 kinds of catalytic cracking catalyst CRMI-2-1, CRMI-2-2, HGY-A, CRSC, CDOS samples are respectively placed in roasting
It is calcined 1 hour at (650 ± 5) DEG C in stove, is cooled to room temperature.The catalyst sample each about 10 of mistake baked above is weighed respectively
Gram, precise m0Gram, being placed in vibration container as shown in Figure 1, (sieve aperture net percent opening is 80%, and mesh is square, square
The length of side of shape is 20 microns) in, and be positioned on the shaking platform shown in Fig. 2 and carry out vibration pretreatment.Setting shaking platform shakes
Dynamic frequency is 300 beats/min, and time of vibration is 1 minute, and the amplitude of up-down vibration is 0.6 centimetre, tentatively screens out fine powder, is recorded
The fine powder quality m of bottom1。
Using a diameter of 6 millimeters of steel balls (density is 7.9 grams/cc) as collision spheroid, weigh about 100 grams and be placed in institute
State in vibration container and mixed with tentatively screening out the microspherical catalyst after fine powder, and carry out vibration abrasion processing, wear-resisting bead is with list
The formal distribution of layer in vessel bottom surface, the projected areas of all wear-resisting beads account for vessel base area four/
Three.The vibration frequency for setting shaking platform is 300 beats/min, and time of vibration is 6 minutes, and the amplitude of up-down vibration is 1.5 lis
Rice, vibration abrasion processing is carried out to microspherical catalyst, fine powder falls into bottom and mixed with the fine powder tentatively screened out, records fine powder amount
m2。
Using formula KAI=(m2-m1)/(m0-m1) vibration abrasion index KAI is calculated, and replication is once, is averaged
Value is used as final data, as shown in table 1.
Using《China Petroleum ＆ Chemical Corporation Research Institute of Petroleum enterprise mark Q/SH 3360 208-2012
The measure straight tube method of catalytic cracking catalyst abrasion index》Determine the straight tube abrasion index of above-mentioned baked catalyst, data
As shown in table 1, the data of table 1 are mapped.
As shown in figure 5, the straight tube abrasion index AI that KAI obtains with straight tube abrasion method has preferable linear relationship, and it is logical
Crossing EXCEL softwares can be calculated, linear regression coeffficient 0.946, and formula II is AI=0.11KAI-0.78.Although this
The abrasion mechanism of the method for invention and straight tube abrasion method is otherwise varied, but the mode that again may be by calculating obtains microballoon and urged
The straight tube abrasion index of agent.
Table 1 is the vibration abrasion index KAI and straight tube abrasion index AI that embodiment 1 determines
| Catalyst | KAI=(m2-m1)/(m0-m1)/% | AI (straight tube abrasion method)/% |
| CRMI-2-1 | 9.5 | 0.7 |
| CRMI-2-2 | 21.6 | 1.3 |
| HGY-A | 27.3 | 1.7 |
| CRSC | 32.6 | 2.7 |
| CDOS | 40.9 | 4.2 |
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, still, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, a variety of letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
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 equally be considered as content disclosed in this invention.
Claims (10)
1. a kind of wear device of microspherical catalyst, the wear device includes vibration container (101), can insert the vibration container
(101) vibration apparatus (103) of wear-resisting bead (102) and the driving vibration container (101) vibration in, wherein, the vibration
The bottom of container is provided with sieve aperture net (107).
2. wear device according to claim 1, wherein, the vibration container (101) from top to bottom includes separable
Top cover (104), vessel (105) and bottom (106), vessel (105) open top are described wear-resisting small to insert
Ball and catalyst, bottom are connected by the sieve aperture net (107) with the bottom (106).
3. wear device according to claim 2, wherein, the vibration container (101) is cylindrical shape, the sieve aperture net
(107) size of mesh is 10-40 microns；The vibration apparatus (103) be shaking platform or including vibrating member and with the vibration
The powered support (109) of part drive connection, the powered support (109) are socketed in outside the vibration container.
4. wear device according to claim 1, wherein, the percent opening of the sieve aperture net (107) is 30-90%, mesh
Be shaped as circular or square.
5. wear device according to claim 1, wherein, the wear-resisting bead (102) be selected from steel ball, zirconia ball and
At least one of silicon nitride ball.
6. wear device according to claim 1, wherein, the ball density of the wear-resisting bead (102) for 3-21 grams/it is vertical
Square centimetre, a diameter of 1-10 millimeters of the wear-resisting bead (102).
7. wear device according to claim 6, wherein, the vibration container (101) is cylindrical shape, the wear-resisting bead
(102) ball density is 6-8 grams/cc, a diameter of 4-7 millimeters of the wear-resisting bead (102).
8. wear device according to claim 7, wherein, the ball density of the wear-resisting bead (102) is 7.6 ± 0.3
Gram/cc, a diameter of 5-6 millimeters of the wear-resisting bead (102).
9. a kind of measurement system of microspherical catalyst tear strength, the system is included described in weighing device (108) and claim 1
Wear device, the weighing device (108) be used for the microspherical catalyst material by the sieve aperture net (107) is claimed
Weight；The weighing device (108) is located at sieve aperture side off the net, and the measurement system also includes being connected to the dress of weighing
The cover cylinder (110) between (108) and the bottom of the vibration container (103) is put, the cover cylinder (110) is included by flexible material shape
Into annular sidewall.
10. a kind of measurement system of microspherical catalyst tear strength, the system includes weighing device (108) and claim 2-8
Wear device described in middle any one, the weighing device (108) are used for being catalyzed by the microballoon of the sieve aperture net (107)
Agent material is weighed.
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