CN203316246U - Separation device for separating catalysts with different inactivation degrees - Google Patents
Separation device for separating catalysts with different inactivation degrees Download PDFInfo
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- CN203316246U CN203316246U CN2013203647546U CN201320364754U CN203316246U CN 203316246 U CN203316246 U CN 203316246U CN 2013203647546 U CN2013203647546 U CN 2013203647546U CN 201320364754 U CN201320364754 U CN 201320364754U CN 203316246 U CN203316246 U CN 203316246U
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Abstract
The utility model discloses a separation device for separating catalysts with different inactivation degrees. The device comprises a separation part, a liquid feeding system and a liquid recycling system, wherein the separation part comprises a straight separation pipe, side separation pipes and a side discharging pipe, the side separation pipes are located on one side of the straight separation pipe and connected with the straight separation pipe; the liquid feeding system comprises a liquid storage tank, an oil pump, a flow meter and a feed liquid distribution cavity which are connected sequentially through liquid feeding pipes; the liquid recycling system comprises an overflow pipe and a settling basin; and the straight separation pipe is connected with the feed liquid distribution cavity through a flange. When the device is used for separating catalysts with different inactivation degrees with a wet method, the catalysts are not required for extraction and deoiling treatment, and simultaneously, the device has the characteristics of simpliness, fastness, low energy consumption and low process cost.
Description
Technical field
The utility model relates to a kind of separator that separates the different densities solid particle, relates in particular to a kind of separator that separates the boiling bed residual oil hydrogenation catalyst of different level of deactivation.
Background technology
The heavy oil deep processing is to alleviate one of effective way of petroleum resources deficiency, and the heavy-oil hydrogenation technology is to solve the effective method of heavy oil deep processing.The boiling bed residual oil hydrocracking technology have to substantially good without pressure drop, uniformity of temperature profile, mass transfer and heat transfer in feedstock oil strong adaptability, reactor, catalyst can add online and discharge, catalyst utilization is high, service cycle is long, install the advantages such as flexible operation, constantly developed in recent years.
In the boiling bed hydrogenation processing procedure, feedstock oil and hydrogen enter reactor from reactor bottom with certain speed, make the interior catalyst of reactor in swelling state.In order to maintain certain reactivity, need constantly or termly to draw off the catalyst of a part of inactivation, add the catalyst that a part is fresh simultaneously.Due to catalyst line duration difference in reactor, this just causes catalyst inactivation in beds also to there are differences.The shorter catalyst of line duration only has a small amount of metal and carbon deposit, still has higher activity, and such catalyst particle can be drawn off by " accident " due to the violent back-mixing of reactor, thereby causes the waste of catalyst.Adopt this separator to be separated the catalyst of different level of deactivation, make not inactivation or the lighter catalyst recovery of level of deactivation reuse, can reduce catalyst loss, greatly reduce the cost of use of catalyst, not only can improve the comprehensive benefit of enterprise, also will bring significant social benefit simultaneously.
The country that is engaged in the world the research and development of dead catalyst isolation technics is a lot, mainly contains the U.S., Japan, Britain and China (according to open), and what wherein technology was the most ripe is the U.S..But what great majority were all studied is the isolation technics of catalytic cracking catalyst particle.And it is less about the large granular catalyst isolation technics research of the different level of deactivation of boiling bed residual oil hydrogenation.
The catalyst that US5147527 discloses a kind of high metallic pollution is separated into the method for low-metal content, moderate metallic pollution and high tenor and active catalyst by the Magnetic Isolation method.By after the Cracking catalyst stripping drawn off, coke-burning regeneration, send into afterwards a conductive conveyor belt and remove electrostatic charge, then sends into the high magnetic region of magnetic intensity gradient, catalyst is separated, and enough magnetic field intensities can make catalyst realize separating with certain transfer rate.But the method requires after all Burning Coke on Catalyst regeneration, just can be separated, the process complexity.
The US5209840 reactor last from ebullated bed draws off the catalyst of inactivation and sends into steam stripping unit, and washing catalyst is removed the oil on catalyst.Then the catalyst after stripping is sent into to the air elutriation unit, with the Air Fluidized beds made progress with enough speed, it is expanded, thereby by the catalyst of different level of deactivation separately, high activity, oligosaprobic catalyst are on upper strata, and the catalyst of low activity, high pollution is in lower floor.Highly active catalyst is regenerated after processing and recycled.But this patent is without concrete plant equipment.
Summary of the invention
The purpose of this utility model be to provide a kind of solid-solid separation device, realize the separation of different densities solid particle, especially realize the separation of different level of deactivation boiling bed residual oil hydrogenation catalysts.
The technical solution of the utility model is: a kind of separator that separates different level of deactivation catalyst, comprise separating part, feed liquor system and the liquids recovery circulatory system, wherein the separating part main body is straight tube structure, as adopted stainless steel tube, lucite tube etc.Separating part comprises and separates straight tube, separates side pipe and discharging side pipe, separate side pipe and be positioned at and separate straight tube one side, and with separate straight tube and be connected; The feed liquor system comprises that the wet tank, oil pump, flowmeter and the feed liquor that connect successively through feed tube distribute cavity; The liquids recovery circulatory system comprises overflow pipe and settling tank.
According to separator of the present utility model, wherein, described separation straight tube can adopt stainless steel tube or lucite tube.As adopt stainless steel tube, the form of transparent visual preferably is set on stainless steel tube.Separating height and the diameter of straight tube can determine according to unit scale, and its ratio of height to diameter is generally the preferred 5:1～10:1 of 3:1～15:1.
In separator of the present utility model, the upper end of wherein separating straight tube also is provided with the catalyst charge pipe.Feeding part is the batch (-type) charging, manually material is directly added the separation straight tube to get final product.According to the requirement of separation accuracy, described separation side pipe can be one or more.Plural separation side pipe is separating on straight tube the setting that keeps at a certain distance away.One end of described separation side pipe is arranged on and separates on straight tube, and the other end that separates side pipe can be connected with settling tank, and the top of this settling tank can be connected with wet tank by overflow pipe, and the agent pipe is unloaded in the setting of the bottom of settling tank.
Described separation straight tube distributes between cavity and adopts flange to be connected with feed liquor, and the screen cloth of certain order number can also be set in the centre of flange, and the order number of this screen cloth should be greater than the order number of catalyst granules to be separated, thereby plays the effect of support catalyst.
Feed liquor distribution cavity, flowmeter, oil pump and wet tank that described feed liquor system comprises feed tube and connected successively by feed tube.Fresh oil can also be set on wet tank to make up line.The bottom of wet tank also is provided with the waste oil discharge pipe.Described feed liquor system can adopt manual control, according to separation of material bulk density and density contrast with material the suspended state in separating straight tube, the valve of manual adjustments flowmeter is controlled.
The described liquids recovery circulatory system comprises separates overflow pipe and the settling tank that draw on straight tube top, and an end of overflow pipe connects and separates straight tube, and the other end can connect settling tank.The top of settling tank is connected with wet tank by overflow pipe, and the bottom of settling tank arranges discharge duct.Overflow pipe with separate the end that straight tube is connected should be higher than the side pipe that separates topmost.
In the utility model device, after particle reaches stable state in the separation straight tube, low-density solid particle tends to be positioned at the top of straight tube, can directly from the separation side pipe that separates straight tube top, discharge; Highdensity solid particle more tends to be positioned at the separation side pipe that separates ，Ke You bottom, straight tube bottom and discharges.
What separator of the present utility model separated is solid catalyst particle.The equivalent diameter of catalyst granules is 0.01～2.00mm, is preferably 0.02～1.50mm; Density is generally 0.20～5.00kg/m
3, be preferably 0.40～3.00kg/m
3.
The advantage of the utility model device is effectively to separate the solid particle with different densities, the boiling bed hydrogenation catalyst particle that the different level of deactivation of certain regular geometric shapes are especially arranged, the catalyst granules after separating of different level of deactivation, a part is that carbon distribution is few, metallic pollution light, active higher recycling catalyst, and another part is that carbon distribution is many, metallic pollution serious, active low dead catalyst.Reuse can be carried out to the front portion catalyst, thereby a large amount of fresh catalysts can be saved.
The utility model device carries out wet separation to the catalyst of different level of deactivation, and the catalyst of the different level of deactivation that will draw off from device during operation, without carrying out extracting de-oiling processing, can directly adopt this device to be separated, simple and fast; It can reduce the use amount of fresh catalyst effectively, economizes on resources, and saves cost; In addition, it is low that this separator also has energy consumption, the characteristics that the process expense is cheap.Therefore, this device has obvious economic benefit and social benefit.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model device.
Wherein: 10-separating part, 11-separate straight tube, 12-separates side pipe, 13-discharging side pipe, 14-flange, 15-catalyst charge pipe, 20-feed liquor system; 21-flange, 22-screen cloth, 23-feed tube, 24-feed liquor distribution cavity, 25-flowmeter, 26-oil pump, 27-wet tank, 28-fresh oil make up line, 29-waste oil discharge pipe; The 30-liquids recovery circulatory system, 31-overflow pipe, 32-settling tank, 33-overflow pipe, 34-discharge duct, 41-settling tank, 42-overflow pipe, 43-unload the agent pipe.
The specific embodiment
Below in conjunction with accompanying drawing, further device of the present utility model is described.
As shown in Figure 1, a kind of device that separates different level of deactivation catalyst of the present utility model comprises that separating part 10, feed liquor system 20 and liquids recovery follow the system of changing 30.Wherein separating part 10 comprise separate straight tube 11, with separate that straight tube is connected separate side pipe 12 and discharging side pipe 13.Feed liquor system 20 comprises wet tank 27, oil pump 26, flowmeter 25, feed liquor distribution cavity 24, and the feed tube 23 that connects each part.Wherein separating the lower end of straight tube 11 distributes cavity 24 to be connected by flange 14, flange 21 with feed liquor.Liquids recovery is followed the system of changing and is comprised overflow pipe 31, settling tank 32.Sedimentation basin 32 is connected with wet tank 27 by the overflow pipe 33 on top, and the bottom of settling tank 32 is provided with discharge duct 34, for the solid particle by settling down, draws off.
In separator of the present utility model, according to the requirement of different separation accuracies, described separation side pipe 12 can comprise one or more, and wherein the distance of the separation side pipe Furthest Neighbor orchid 14 of the top is generally and separates 3/5～8/9 of straight tube height.Plural separation side pipe 12 is separating on the tube wall of straight tube settings that keep at a certain distance away, and generally every 50～500 mm, a separation side pipe is set downwards successively.Separate side pipe 12 and usually be connected with settling tank 41, the top of settling tank 41 can be connected with wet tank 27 by overflow pipe 42, and the bottom of settling tank 41 arranges catalyst unloading pipe 43.Equally, described discharging side pipe 13 also can connect with corresponding settling tank.The effect of discharging side pipe 13 is that remaining catalyst after separation and liquid are drawn off, and the distance of discharging side pipe 13 lower edges and flange 14 generally is advisable to be less than 5mm, preferably 0～2 mm.The bottom of wet tank 27 arranges waste oil discharge pipe 29, for regularly discharging the liquid of heavy contamination, and makes up line and 28 supplements fresh circulation fluids (oil) by fresh oil.
At the flange 14 of separating part and the intermediate demand of feed liquor flange 21 partly, screen cloth 22 is set, the order number of screen cloth 22 should be greater than the order number of catalyst to be separated, plays the effect of supported catalyst particles.Be provided with catalyst charge pipe 15 in the upper end of separating straight tube 11, for adding catalyst to be separated.
The operation principle of the utility model device: separated according to the difference of grain density.The liquid medium that this device is selected is generally diesel oil or kerosene.The granule materials of different densities can realize that under different feed liquor speed balance suspends, the density of material is corresponding one by one with the liquid speed that balance suspends, the particle that density is different is subject to hydrokinetic effect in the medium of motion, cause suitable loose layering and separation condition, thereby the particle of different densities is separated.
The course of work of described separator is summarized as follows: during use, catalyst to be separated adds and separates in straight tube 11 by catalyst charge pipe 15, and the result of measuring according to flowmeter 25 is regulated oil pump 26, controls the fluid flow that access to plant separates straight tube 11.The catalyst granules of different level of deactivation (different metal deposition) will liquid carry with buoyancy under move upward, and be issued to relative equilibrium at gravity and buoyancy, the beds of formation " ebullated bed " or " expanded bed ".Wherein the catalyst of level of deactivation light (being that density is less) is more prone to arrive the catalyst bubbling bed the superiors under the effect of liquid buoyancy, thereby the lightest catalyst of level of deactivation can flow out from the separation side pipe 12 of the top of separating the straight tube side, and collects stand-by.What density was larger a little separates the side pipe outflow from second, by that analogy, can complete the separation of different level of deactivation catalyst, the catalyst of the heaviest (density maximum) can be flowed out by the discharging side pipe 13 of bottom, thereby realizes the Isolation and screening of the catalyst granules of different level of deactivation (different metal deposition).The oil that overflow pipe flows out can be recovered to the sedimentation basin footpath and overflow to fuel tank after standing again and recycle.
Claims (11)
1. a separator that separates different level of deactivation catalyst, it is characterized in that, described device comprises separating part, feed liquor system and the liquids recovery circulatory system, wherein separating part comprises the separation straight tube, separates side pipe and discharging side pipe, separate side pipe and be positioned at a side of separating straight tube, and with separate straight tube and be connected; The feed liquor system comprises that the wet tank, oil pump, flowmeter and the feed liquor that connect successively through feed tube distribute cavity; The liquids recovery circulatory system comprises overflow pipe and settling tank; Described separation straight tube distributes between cavity and is connected by flange with feed liquor.
2. according to separator claimed in claim 1, it is characterized in that, described separation straight tube adopts stainless steel tube or lucite tube.
3. according to separator claimed in claim 2, it is characterized in that, described separation straight tube adopts stainless steel tube, and the form of transparent visual is set on stainless steel tube.
4. according to separator claimed in claim 1, it is characterized in that, the ratio of height to diameter of described separation straight tube is 3:1～15:1.
5. according to separator claimed in claim 1, it is characterized in that, the upper end of described separation straight tube also is provided with the catalyst charge pipe.
6. according to separator claimed in claim 1, it is characterized in that, described separation side pipe is one or more.
7. according to separator claimed in claim 6, it is characterized in that, described plural separation side pipe is separating on straight tube the setting that keeps at a certain distance away.
8. according to separator claimed in claim 1, it is characterized in that, an end of described separation side pipe is arranged on and separates on straight tube, and the other end that separates side pipe is connected with settling tank, the top of described settling tank is connected with wet tank by overflow pipe, and the bottom of settling tank arranges unloads the agent pipe.
9. according to separator claimed in claim 1, it is characterized in that, in the centre of described flange, screen cloth is set, the order number of screen cloth is greater than the order number of catalyst granules to be separated, plays the effect of support catalyst.
10. according to separator claimed in claim 1, it is characterized in that, also be provided with fresh oil and make up line on wet tank, the bottom of wet tank also is provided with the waste oil discharge pipe.
11. according to separator claimed in claim 1, it is characterized in that, described overflow pipe with separate an end that straight tube is connected higher than the side pipe that separates topmost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203647546U CN203316246U (en) | 2013-06-25 | 2013-06-25 | Separation device for separating catalysts with different inactivation degrees |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203647546U CN203316246U (en) | 2013-06-25 | 2013-06-25 | Separation device for separating catalysts with different inactivation degrees |
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| Publication Number | Publication Date |
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| CN203316246U true CN203316246U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203647546U Expired - Lifetime CN203316246U (en) | 2013-06-25 | 2013-06-25 | Separation device for separating catalysts with different inactivation degrees |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104606946A (en) * | 2015-01-09 | 2015-05-13 | 中国天辰工程有限公司 | Method for separating inactivated curing catalyst in adiponitrile production process |
-
2013
- 2013-06-25 CN CN2013203647546U patent/CN203316246U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104606946A (en) * | 2015-01-09 | 2015-05-13 | 中国天辰工程有限公司 | Method for separating inactivated curing catalyst in adiponitrile production process |
| CN104606946B (en) * | 2015-01-09 | 2016-05-11 | 中国天辰工程有限公司 | In a kind of adiponitrile production process, separate the method for inactivation curing catalysts |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |