CN201124089Y - Autoclave reactor - Google Patents
Autoclave reactor Download PDFInfo
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- CN201124089Y CN201124089Y CNU2007200159704U CN200720015970U CN201124089Y CN 201124089 Y CN201124089 Y CN 201124089Y CN U2007200159704 U CNU2007200159704 U CN U2007200159704U CN 200720015970 U CN200720015970 U CN 200720015970U CN 201124089 Y CN201124089 Y CN 201124089Y
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- autoclave reactor
- autoclave
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- delivery element
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Abstract
The utility model relates to an autoclave reactor used for continuous charging and discharging of boiling bed hydrogenation cracking process, belonging to the reaction equipment used for oil processing or coal liquefaction process. The autoclave reactor can be used for the reaction process with the existence of the three-phase of gas, liquid or solid at the same time. Through a catalyst basketry with a novel structure and an axial flow conveyor are arranged in the autoclave, the aims of excellent applicability, intensifying back mixing, full contact of the catalyst and raw oil, catalyst being not broken, drained away and reduced, and timely absorbing/discharging reacted green coke so as to prevent the green coke from gathering in the autoclave are achieved. The autoclave reactor of the utility model is especially applicable to the heavy oil boiling bed hydrogenation cracking process using high dispersion catalysts.
Description
Technical field
The utility model relates to a kind of continuous feeding and discharging autoclave reactor that is used for the boiling bed hydrogenation cracking, belong to the consersion unit in PETROLEUM PROCESSING or the coal liquefaction craft, it can be used for gas, liquid and the simultaneous course of reaction of solid three-phase, is specially adapted to the heavy oil boiling bed hydrogenation cracking process evaluating catalyst of dispersed catalysts.
Background technology
At present, the existing autoclave reactor in laboratory is generally the reactor of batch (-type) input and output material, and these reactors do not exist the catalyst stream feedstock oil of becoming estranged to contact inadequate problem with catalyst for the intermittence input and output material.Existingly be suitable for the catalyst basketry that autoclave uses, be generally the annulated column type, outer wall is all established screen cloth, to prevent catalyst loss.But boiling-bed catalyst evaluation for continuous feeding and discharging, above-mentioned autoclave is all inapplicable, and reason is: on the one hand, existing annulated column type catalyst basketry outer wall is all established screen cloth, the circulation of feedstock oil mainly is a process of laterally passing through the catalyst basketry, and catalyst is easy to accumulate in the basketry bottom; On the other hand, existing autoclave stirs by stirring wing, which kind of structure no matter though what have all that feedstock oil flows through that the catalyst basketry flows through is that the little catalyst content of resistance is lower or do not contain the top of the basketry of catalyst, causes catalyst can not fully contact with feedstock oil.In addition, heavy oil boiling bed hydrogenation cracking process for continuous feeding and discharging, even the amount of coke that reaction generates is not very big (as 2wt%), but under the bad situation of catalyst dispersity, the coke that generates is if can not in time be adsorbed or discharge autoclave by catalyst, be deposited on the burnt grain that compares thickness in the autoclave and will be gathered into piece, finally stop up autoclave input and output material or gas port.
Above-mentioned reason has determined to use traditional autoclave, in the heavy oil boiling-bed catalyst autoclave evaluation procedure of continuous feeding and discharging, catalyst can not disperse at the basketry inner height, feedstock oil may just not discharged reactor with the abundant haptoreaction of catalyst, reaction evaluating can not be accomplished the end in view, and exist autoclave to import and export the risk of stopping up.
The utility model content
At the deficiencies in the prior art, the technical problems to be solved in the utility model provides a kind of continuous feeding and discharging autoclave reactor that is used for the boiling bed hydrogenation cracking.It mainly is to adopt catalyst basketry that new structure is set in autoclave reactor inside and axial conveyor to reach to strengthen that back-mixing, catalyst fully contact with feedstock oil, catalyst is not broken and do not run off, reduce and in time discharge and react green coke avoid the purpose that it is assembled, applicability is good in autoclave.
Autoclave reactor of the present utility model mainly comprises kettle, still head, axial conveyor and catalyst basketry; Described axial conveyor comprises circulation tube and the delivery element that is arranged on the driving shaft; Described catalyst basketry is positioned at the bottom of axial conveyor, is surrounded by circulation barrel and screen cloth.
Wherein said delivery element can be screw thread, propeller or blade in the wall of circulation tube.
If as delivery element, be preferably single head to the four-head helicitic texture with screw thread.The pitch of screw thread is promptly with respect to the relative altitude of diameter preferably from 0.2 to 0.9.
If as delivery element, the quantity of blade is preferably 2 to 5 with propeller.
Also be provided with feed(raw material)inlet, gas access and discharging opening on the described still head.The reactor bottom is all introduced by conduit in feed(raw material)inlet and gas access between circulation cartridge type catalyst basketry and still wall.In addition, the driving shaft that is provided with on the still head up is connected with variable-frequency motor, then is connected with delivery element in kettle.
In order better to realize the purpose of this utility model, the screen designs at described catalyst basketry two ends is dismountable, and its order number can be changed arbitrarily according to catalyst grain size.Simultaneously, in order to obtain back-mixing more fully, select the mixing component of axial flow conveyer as autoclave.According to different reaction requirements, screw thread by changing different pitches and/or the rotating speed of regulating the variable-frequency motor that connects driving shaft are controlled the back-mixing state in velocity of circulation and then the control reactor.
Compared with prior art, characteristics of the present invention show: adopt the mixing component of axial conveyor as the reaction logistics, can realize even stirring to the reaction logistics, in autoclave, form the appropriate back-mixing of logistics, thereby can eliminate the interior hot-spot phenomenon of course of reaction mesohigh still, make temperature maintenance homogeneous everywhere in the autoclave; But also can increase time of contact of solid, liquids and gases, prevent that the feedstock oil unreacted from promptly discharging; And the combination of axial conveyor and catalyst basketry, then realized " boiling " of catalyst in the catalyst basketry, both guaranteed the high degree of dispersion of catalyst, and avoided catalyst again because of the broken problem of being taken out of autoclave reactor of the reason that stirs with discharging; Simultaneously, the catalyst of high degree of dispersion is adsorption reaction green coke and/or will react green coke and discharge autoclave fast with discharging fast, avoids it to be gathered into piece in still.
Description of drawings
Fig. 1 is a general structure schematic diagram of the present utility model.
Fig. 2 is a circulation cartridge type catalyst basketry schematic diagram of the present utility model.
The name of each several part is called among Fig. 1:
1---delivery element 2---charging aperture 3---air inlet 4---variable-frequency motor
5---thermocouple mouth 6---still head 7---discharging opening 8---kettle
9---heating furnace body 10---catalyst 11---fulcrum 12---catalyst basketry
13---screen cloth 14---circulation tube 15---supporting leg 16---driving shaft
The specific embodiment
The design feature of the utility model autoclave is described in detail in detail below in conjunction with accompanying drawing 1.
Shown in Fig. 1-2, autoclave of the present utility model comprises still head 6, kettle 8, catalyst basketry 12 and heating furnace body 9.Wherein driving shaft 16 runs through still head 6, up is connected with variable-frequency motor 4, links to each other with delivery element 1 toward next; Also be provided with charging aperture 2, air inlet 3 and discharging opening 7 and thermocouple mouth 5 on the still head, wherein charging aperture 2 and air inlet 3 communicate with autoclave base by pipeline respectively, the temperature-measuring heat couple sleeve pipe then place the thermocouple mouth and stretch into the basketry wall and the kettle wall between.In the inside of kettle 8, circulation tube 14 is supported by fulcrum 11 and supporting leg 15, and the number of fulcrum 11 and supporting leg 15 is generally 3～6, along the circumferential direction evenly distributes; Catalyst basketry 12 by the ring wall of circulation tube 14 and up and down the screen cloth 13 at two ends surround.Screen cloth 13 is usually designed to dismountable, and the several granularities according to the dress catalyst of its order determine that the loadings of catalyst accounts for 20%～80% of catalyst basketry volume usually.Delivery element 1 is positioned at circulation tube 14 inside, places the top of catalyst basketry 12, and is driven by driving shaft 16.
According to different reaction requirements and back-mixing degree, delivery element 1 can be propeller, blade or screw thread.If as delivery element, the quantity of blade is preferably 2 to 5 with propeller.If screw thread, is preferably single head as delivery element to the four-head helicitic texture.The pitch of screw thread is promptly with respect to the relative altitude of diameter preferably from 0.2 to 0.9.
Be the course of work that example illustrates the utility model autoclave with heavy oil boiling bed hydrogenation processing procedure below.
Heavy oil feed and hydrogen enter autoclave base by charging aperture 2 and air inlet 3 respectively.Because delivery element 1 can produce lifting force upwards, to carry logistics flows along major axes orientation, upwards the reactant that flows flows to when reaching the autoclave top, and a part can be forced to return from the annular spaces of circulation tube and still wall with overflow towards periphery under the gravity effect; Some will discharge autoclave by discharging opening 7.Under the lifting force effect that delivery element 1 produces, the logistics that turns back to kettle 8 bottoms is with after fresh feed and gas mix, once more by catalyst zone and to carry catalyst 10 upwards mobile, thereby in catalyst basketry 12 " boiling " of realization catalyst; And the logistics that continues upwards to flow will repeat above-mentioned process, thereby between circulation tube inside and outside, form circulation, both keep the back-mixing state that gas, liquid and solid are in appropriateness, realized fully contacting between gas, liquid and the catalyst again.
Because catalyst is in a kind of " boiling " state all the time, the coke that generates in the system can be adsorbed on above the catalyst that is high degree of dispersion uniformly, perhaps discharge autoclave, avoided it in kettle, to be gathered into piece, thereby prolonged the service cycle of autoclave with the reaction logistics.
Claims (7)
1, a kind of autoclave reactor mainly comprises kettle and still head, it is characterized in that, also is provided with axial conveyor and catalyst basketry in kettle, and described axial conveyor comprises circulation tube and the delivery element that is arranged on the driving shaft; Described catalyst basketry is positioned at the bottom of axial conveyor, is surrounded by circulation barrel and two-layer screen cloth.
According to the described autoclave reactor of claim 1, it is characterized in that 2, described delivery element can be propeller, blade or screw thread in the wall of circulation tube.
According to the described autoclave reactor of claim 2, it is characterized in that 3, described delivery element is a propeller, the quantity of blade is 2 to 5.
According to the described autoclave reactor of claim 2, it is characterized in that 4, described delivery element is a screw thread, described screw thread has single head to the four-head helicitic texture.
According to the described autoclave reactor of claim 4, it is characterized in that 5, the pitch of described screw thread is from 0.2 to 0.9 with respect to the relative altitude of diameter promptly.
6, according to the described autoclave reactor of claim 1, it is characterized in that, also be provided with feed(raw material)inlet, gas access and discharging opening on the described still head.
According to the described autoclave reactor of claim 1, it is characterized in that 7, described screen designs is dismountable, its order is several to be changed arbitrarily according to catalyst grain size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200159704U CN201124089Y (en) | 2007-11-15 | 2007-11-15 | Autoclave reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200159704U CN201124089Y (en) | 2007-11-15 | 2007-11-15 | Autoclave reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201124089Y true CN201124089Y (en) | 2008-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200159704U Expired - Lifetime CN201124089Y (en) | 2007-11-15 | 2007-11-15 | Autoclave reactor |
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| Country | Link |
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| CN (1) | CN201124089Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002382A (en) * | 2010-11-17 | 2011-04-06 | 煤炭科学研究总院 | Miniature high-pressure reactor experiment device for direct coal liquefaction and experiment method thereof |
| CN102652911A (en) * | 2012-04-28 | 2012-09-05 | 刘晓文 | Cooking pot |
| CN102101687B (en) * | 2009-12-16 | 2013-05-08 | 国家纳米科学中心 | Equipment for preparing aluminium hydroxide nanorod and preparation method thereof |
| CN103320316A (en) * | 2013-07-19 | 2013-09-25 | 华南师范大学 | Fermentation device for three-phase fluidized bed |
| CN106198133A (en) * | 2016-06-23 | 2016-12-07 | 中国石油大学(华东) | The device and method that quickly preparation simulation pipe is burnt |
| CN108854868A (en) * | 2017-05-08 | 2018-11-23 | 神华集团有限责任公司 | Fluidized-bed reactor and its application |
| CN110244027A (en) * | 2018-03-07 | 2019-09-17 | 中国石油化工股份有限公司 | Processing of heavy oil reaction evaluating device |
-
2007
- 2007-11-15 CN CNU2007200159704U patent/CN201124089Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101687B (en) * | 2009-12-16 | 2013-05-08 | 国家纳米科学中心 | Equipment for preparing aluminium hydroxide nanorod and preparation method thereof |
| CN102002382A (en) * | 2010-11-17 | 2011-04-06 | 煤炭科学研究总院 | Miniature high-pressure reactor experiment device for direct coal liquefaction and experiment method thereof |
| CN102002382B (en) * | 2010-11-17 | 2013-09-18 | 煤炭科学研究总院 | Miniature high-pressure reactor experiment device for direct coal liquefaction and experiment method thereof |
| CN102652911A (en) * | 2012-04-28 | 2012-09-05 | 刘晓文 | Cooking pot |
| CN102652911B (en) * | 2012-04-28 | 2015-09-09 | 刘晓文 | Cooker |
| CN103320316A (en) * | 2013-07-19 | 2013-09-25 | 华南师范大学 | Fermentation device for three-phase fluidized bed |
| CN106198133A (en) * | 2016-06-23 | 2016-12-07 | 中国石油大学(华东) | The device and method that quickly preparation simulation pipe is burnt |
| CN106198133B (en) * | 2016-06-23 | 2018-11-20 | 中石油华东设计院有限公司 | The quickly device and method of preparation simulation pipe coke |
| CN108854868A (en) * | 2017-05-08 | 2018-11-23 | 神华集团有限责任公司 | Fluidized-bed reactor and its application |
| CN108854868B (en) * | 2017-05-08 | 2020-11-24 | 神华集团有限责任公司 | Fluidized bed reactor and application thereof |
| CN110244027A (en) * | 2018-03-07 | 2019-09-17 | 中国石油化工股份有限公司 | Processing of heavy oil reaction evaluating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081001 |