CN102049221B - Boiling-bed reaction system - Google Patents
Boiling-bed reaction system Download PDFInfo
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- CN102049221B CN102049221B CN 200910188156 CN200910188156A CN102049221B CN 102049221 B CN102049221 B CN 102049221B CN 200910188156 CN200910188156 CN 200910188156 CN 200910188156 A CN200910188156 A CN 200910188156A CN 102049221 B CN102049221 B CN 102049221B
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Abstract
The invention discloses a boiling-bed reaction system which comprises a catalyst filling device, a reactor, a delivering oil storage tank and a pump, wherein the top of the catalyst filling device is connected with the gas outlet of the reactor; the bottom of the catalyst filling device is connected with the reactor; the delivering oil storage tank is connected with the liquid outlet of the reactor; the bottom of the delivering oil storage tank is connected with the pump; the pump is connected with the catalyst filling device; and the top of the catalyst filling device is also connected with a hydrogen pipeline, a nitrogen pipeline, a vacuum pump and an atmospheric valve. In the reaction system provided by the invention, the distillate oil at the outlet of the reactor can be used as delivering liquid and a hydraulic transportation way is employed, thus the on-line filling of the catalyst is realized. The catalyst filling system of the reaction system provided by the invention has the advantages of simple structure, steady delivering, no pipeline blockage, stable and controllable solid holdup and less consumption of oil used for pouring the catalyst into the reactor. During the delivering process, catalyst particles don not pass through the deliver pump, thereby avoiding abrasion of the catalyst and the pump. Thus the reaction system provided by the invention is suitable for filling fresh catalyst into the boiling-bed reactor in an on-line mode continuously or discontinuously.
Description
Technical field
The present invention relates to a kind of catalyst annotate online technique and device, belong to petrochemical industry, especially for the online loading system of the catalyst of ebullating bed reactor technique.
Background technology
All there is the solid particle transportation problem in the fields such as petrochemical industry, environmental protection, mine metallurgy, electric power.Usually, the solid particle mode of movement has mechanical transmission, air-flow to carry and the waterpower conveying.
When giving closed system conveying solid substance particle, the general waterpower mode of movement that adopts need carry out pulping process usually, and adopts in the slag stock pump injection device, have that operation is numerous and diverse, the equipment number of units is many, the shortcomings such as power consumption is large, pump serious wear, the cycle of operation is short, the maintenance amount is large, operating cost is high.Use at present the flow passage part of maximum centrifugal type slurry pumps, as being generally 500～1000 hours the service lifes such as impeller, sheath axle, spiral case, not only caused the significant wastage of human and material resources, and affected the normal production of device.
Chinese patent CN86209508U has introduced a kind of vertical conveyer with water power, is made of many (cover) equipment and valve group, is used for the conveying of thermal power plant's lime-ash oar and coal dust, has the shortcomings such as device is numerous and diverse, the conveying of need slag stock pump.Chinese patent CN87206593U has introduced a kind of hydraulic conveyor, consisted of by equipment such as ash pump, high-pressure hydraulic pump, oil motor, oil pump, valve groups, be used for ore deposit oar, coal-fired power plant and lime-ash and carry, exist device numerous and diverse, need the slag stock pump to carry and easy shortcomings such as obstruction.
The boiling bed process technology can be processed weight, the inferior feedstock oil of high metal, high asphalt content, have that Pressure Drop is little, uniformity of temperature profile, can keep the active homogeneous of whole catalyst in reactor service cycle, can on-stream adding fresh catalyst and take out dead catalyst and need not the characteristics such as shut-downs, the residual hydrogenation field more than, the impurity large especially for viscosity.This arts demand catalyst is annotated online, if only implementing the waterpower punching send, it carries the solid holdup of slurries to be effectively controlled: punching is sent when solid holdup is high in the process, easy blocking pipe, wearing and tearing valve and equipment, punching send the process solid holdup to cross when low, and the required liquor charging liquid measure of rushing is large, larger on the impact of reactor fluidized state.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of ebullating bed reactor system of the catalyst of can realizing annotating online.Ebullating bed reactor of the present invention system comprises the online filling tank of a cover catalyst, can by getting the raw materials ready-annotate two stages, adopt the waterpower mode of movement take the reactor outlet distillate as conveying liquid, the online filling of realization catalyst.
Ebullating bed reactor of the present invention system comprises fluidized bed reactor, transferring oil storage tank, catalyst filling tank and pump; Catalyst filling tank top is connected with the fluidized bed reactor outlet gas line by pipeline; Catalyst filling tank bottom is connected with reactor shell by pipeline; The transferring oil storage tank is connected with the liquid reactor outlet by pipeline, and the transferring oil tank bottom is connected with pump by pipeline; Pump is connected with the catalyst filling tank by the multichannel pipeline; Described catalyst filling tank top is connected with hydrogen gas lines, nitrogen pipeline, vavuum pump and atmospheric valve by pipeline.
According to ebullating bed reactor provided by the invention system, described catalyst filling tank comprises that apparatus closing end, cylindrical shell, mozzle, transferring oil distributor, injector, conical flow guiding body and punching send device; Described conical flow guiding body is positioned at the cylindrical shell bottom, with between the cylindrical shell for airtight the connection; Mozzle is fixed on the conical flow guiding body bottom, forms airtight the connection with low head; Injector is positioned at mozzle, its main shaft and mozzle dead in line; Punching send device to be connected with the mozzle bottom.
Described injector comprises two sections trunnion sections, two sections contraction sections, solid particle ingress pipe and mixing chamber cylindrical shells.Described transferring oil distributor is made of endless tube and arm; Endless tube is sleeved on the mozzle outside, its endless tube axis and mozzle dead in line.
According to ebullating bed reactor provided by the invention system, have manhole and gas phase entrance at described upper cover.Edge can also arrange pressure-equalizing pipe at the distance cylindrical shell, and its lower end is airtight the connection with conical flow guiding body; The upper end is goed deep in the upper cover; The upper end can arrange rain cap.
According to ebullating bed reactor provided by the invention system, catalyst filling tank wherein can by getting the raw materials ready-annotate two stages, be finished the online filling of catalyst.The transferring oil distributor is set in the catalyst filling tank, and the transferring oil from the aperture of bottom injects makes solid particle have flowability; The transferring oil that the top aperture injects impacts solid particle layer, makes its avalanche, by injecting above-mentioned two-way transferring oil, realizes slurrying; Conical flow guiding body is set, is convenient to the slip of solid particle and effluxes; Injector and mozzle are set, in injector, inject transferring oil and form and spray, in the injector mixing chamber, produce little negative pressure, the suction solid particle enters the injector mixing chamber, under the injector jet action, the mud of being made by transferring oil, catalyst enters mozzle through contraction section and trunnion section, and the transferring oil that injector injects dilutes mud; Punching is set send device, inject transferring oil, send the device porch to form little negative pressure in punching, realize carrying secretly, rushing and send boiling bed hydrogenation catalyst; The transferring oil distributor send with the triangular ratio of oil mass with oil mass and punching with oil mass, injection and regulates, and can realize the control of slurries solid holdup in the course of conveying; Conical flow guiding body is set, is convenient to the solid particle landing and in the gathering of bottom, uses oil mass thereby reduce to carry; Pressure-equalizing pipe is set, when equipment needs pressure-bearing, eliminates the pressure-bearing of conical flow guiding body, thereby reduce equipment manufacturing cost.
The catalyst filling apparatus that comprises in the ebullating bed reactor of the present invention system is simple in structure, carry steadily, can not blocking pipe, solid holdup is stable and controlled, punching send oily consumption few, catalyst granules in course of conveying without delivery pump, the wearing and tearing of mechanical rotation to catalyst have been avoided, avoid simultaneously the abrasion of catalyst to pump, be applicable to the fresh catalyst of in fluidized bed reactor, annotating online continuously or discontinuously.
Description of drawings
Fig. 1 is ebullating bed reactor system schematic of the present invention.
Fig. 2 is catalyst filling tank structural representation of the present invention.
01-reactor wherein, 02-catalyst filling tank, 03-transferring oil storage tank, the 04-pump, the 05-apparatus closing end, the 06-pressure-equalizing pipe, the 07-cylindrical shell, the 08-injector, the 09-conical flow guiding body, the 010-mozzle, device, 012-transferring oil distributor are sent in the 011-punching.The 1-feed(raw material)inlet, 2-catalyst filler, the outlet of 3-slurries, the 4-punching is sent the oil-in, 5-flux oil entrance, 6-transferring oil entrance, 7-oil gas entrance, the 8-catalyst adds mouth, the 9-vacuum orifice, the 10-nitrogen inlet, 11-hydrogen inlet, 12-drain, the 13-oil drain out, 14-transferring oil entrance, 15-oil gas by-passing valve, the 16-oil gas vent, the 17-pressure balance mouth of pipe, 18-flux oil nozzle.
The specific embodiment
The online filling of the catalyst of ebullating bed reactor of the present invention system is achieved in that take the reactor outlet distillate as conveying liquid, by getting the raw materials ready-annotate two stages, the online filling of realization catalyst.Get the raw materials ready the stage by add catalyst, closed catalyst filling tank, vacuumize, input nitrogen, secondary vacuum pumping, inputting hydrogen, catalyst filling apparatus top be communicated with seven step operations and form with the fluidized bed reactor top; The filling stage send three processes to form by slurrying, dilution and punching.
Below in conjunction with accompanying drawing ebullating bed reactor of the present invention system is described further.
As shown in Figure 1, ebullating bed reactor of the present invention system comprises reactor 01, catalyst filling tank 02, transferring oil storage tank 03 and pump 04; The transferring oil entrance 14 of transferring oil storage tank 03 is connected with liquid reactor products export pipeline by process pipelines, and automatic control of liquid level instrument and control valve are set in the transferring oil storage tank, the opening and closing of control transferring oil entrance.The transferring oil storage tank is connected with pump 04 by process pipelines 13, and described pump is connected with catalyst filling tank 02 with being connected by pipeline 4,5 respectively; Catalyst filling tank top oil gas entrance 7 is connected with reactor gaseous phase outlet pipeline 16 by oil gas by-passing valve 15, catalyst filling tank top vacuum orifice 9 is connected with vavuum pump by pipeline, and catalyst filling tank top also is provided with nitrogen inlet 10, hydrogen inlet 11 and drain 12.
As shown in Figure 2, described catalyst filling tank 02 comprises that apparatus closing end 05, pressure-equalizing pipe 06, cylindrical shell 07, injector 08, conical flow guiding body 09, mozzle 010, transferring oil distributor 012 and punching send device 011.The catalyst filling tank adds mouth 8 except catalyst is set at upper cover, also at diverse location oil gas entrance 7, vacuum orifice 9, nitrogen inlet 10, hydrogen inlet 11 and drain 12 are set, can realize respectively pressure balance, input nitrogen, vacuumize, the functions such as inputting hydrogen and oil gas emptying.
Catalyst filling tank of the present invention, described injector 08 is made of two sections trunnion sections, two sections contraction sections, solid particle ingress pipe and mixing chamber cylindrical shells.Described mozzle 010 is made of conical head, cylindrical shell, connector, adapter and flange; Mozzle is airtight the connection with low head, 09 of conical flow guiding body.Described punching send device 011 to send oil-in 4, contraction section and trunnion to consist of by slurries inlet tube, slurries outlet, punching; Slurries outlet and punching are sent the oil-in to manage isometrical and are same axis; Contraction section, trunnion and punching send the oil-in pipe to be same axis.Described transferring oil distributor 012 is made of endless tube and arm; Endless tube is sleeved on the mozzle outside, and its endless tube axis and mozzle dead in line have some apertures in the upper and lower surface of endless tube.Conical flow guiding body 09 is arranged on the bottom of cylindrical shell 07, is airtight the connection between the large end of its taper and cylindrical shell.Pressure-equalizing pipe 06 is arranged on apart from cylindrical shell edge 100mm～300mm place; Its lower end is airtight the connection with conical flow guiding body; The upper end is goed deep in the upper cover; The upper end arranges rain cap.
Carry oil mass, injector conveying oil mass and punching to send device to carry the triangular ratio of oil mass by regulating distributor, can realize the control of solid holdup; Conical flow guiding body is set, is convenient to the solid particle landing and in the gathering of bottom, uses oil mass thereby reduce to carry; Pressure-equalizing pipe is set, when equipment needs pressure-bearing, eliminates the pressure-bearing of conical flow guiding body, thereby reduce equipment manufacturing cost.
Ebullating bed reactor of the present invention system can realize the online filling of catalyst.The online filling of catalyst is generally intermittently operated, comprises the preparation of conveying liquid, catalyst four steps that feed intake, annotate online and stop work.
The preparation of conveying liquid: the part of reactor distillate enters the transferring oil storage tank through process pipelines, and automatic control of liquid level instrument and control valve are set in the transferring oil storage tank, and the opening and closing of control transferring oil entrance realize that the abundance of transferring oil is with stable; After the transferring oil storage tank was full of, process pipelines was closed, and the reactor distillate flows into next step operation through process pipelines.
Adding of catalyst: catalyst adds from the catalyst of upper cover after metering and mouthful is filled in the catalyst filling tank, closes catalyst and adds mouth; The catalyst filling tank is extracted into the certain vacuum degree, gets rid of air in the tank; Close process pipelines 9 after reaching the certain vacuum degree, be communicated with nitrogen pipeline 10, nitrogen injection in the catalyst filling tank is closed nitrogen pipeline after reaching setting pressure; Be communicated with process pipelines 9, the catalyst filling tank is extracted into vacuum, get rid of nitrogen in the tank, close process pipelines 9 after reaching the certain vacuum degree; Be communicated with hydrogen gas lines 11, in the catalyst filling tank, inject hydrogen, close hydrogen gas lines 11 after reaching setting pressure; Open process pipelines 7 reactor and catalyst filling tank are communicated with, two equipment are in isopiestic state.So far, finished the operation that adds of catalyst.
Online filling: start pump 04, open transferring oil entrance 6, inject transferring oil by transferring oil distributor 012 to the catalyst filling tank, the transferring oil that the ring pipe lower surface aperture of transferring oil distributor injects makes catalyst have flowability; The transferring oil that the aperture of endless tube upper surface injects impacts layer of catalyst particles, makes its avalanche, guarantees the continuity of catalyst supply.Open flux oil entrance 5 and inject transferring oil to injector, export 18 places at injector and form high velocity jet, form little negative pressure in the injector mixing chamber, the suction catalyst slurries, under the baffling of mozzle conical head, catalyst slurry flows downward from the annular space between injector and the mozzle, flows into punching and send device; Open punching and send oil-in 4, form jet in device is sent in punching, enter the little negative pressure of interruption-forming at catalyst slurry, the catalyst slurry that the suction mozzle flows out is realized the filling of catalyst slurry.
By injecting transferring oil and flux oil, realize the slurrying of catalyst, send oil to realize carrying by injecting punching.
Finish filling: close process pipelines 7, pump 04 and process pipelines 13 after the catalyst filling is finished, the process pipelines 2 between reactor and catalyst filling apparatus is disconnected, open blow-down pipe 12, oil gas in the tank is delivered to high subsystem; Be communicated with nitrogen pipeline 10, nitrogen injection in the catalyst filling tank purges oil gas in the tank clean.So far, finished the online filling process of catalyst.
The catalyst particle size scope of using in the online loading system of catalyst of the present invention is 0.04mm～3mm.
Claims (12)
1. an ebullating bed reactor system comprises fluidized bed reactor, transferring oil storage tank, catalyst filling tank and pump, and described catalyst filling tank top is connected with the fluidized bed reactor outlet gas line by pipeline; Catalyst filling tank bottom is connected with the fluidized bed reactor cylindrical shell by pipeline; The transferring oil storage tank is connected with the fluidized bed reactor liquid outlet by pipeline, and the transferring oil tank bottom is connected with pump by pipeline; Pump is connected with the catalyst filling tank by pipeline respectively; Described catalyst filling tank top also is connected with hydrogen gas lines, nitrogen pipeline, vavuum pump and atmospheric valve by pipeline.
2. according to ebullating bed reactor claimed in claim 1 system, it is characterized in that, described catalyst filling tank comprises that apparatus closing end, cylindrical shell, mozzle, transferring oil distributor, injector, conical flow guiding body and punching send device; Described conical flow guiding body is positioned at the cylindrical shell bottom, with between the cylindrical shell for airtight the connection; Mozzle is fixed on the conical flow guiding body bottom, forms airtight the connection with low head; Injector is arranged in the mozzle, its main shaft and mozzle dead in line; Punching send device to be connected with the mozzle bottom.
3. according to ebullating bed reactor claimed in claim 2 system, it is characterized in that, described transferring oil distributor comprises endless tube and arm; Endless tube is sleeved on the mozzle outside, its endless tube axis and mozzle dead in line.
4. according to ebullating bed reactor claimed in claim 2 system, it is characterized in that, described apparatus closing end comprises upper cover, has manhole and gas phase entrance at described upper cover, edge arranges pressure-equalizing pipe at the distance cylindrical shell, and its lower end is airtight the connection with conical flow guiding body; The upper end is goed deep in the upper cover, and the upper end arranges rain cap.
5. according to ebullating bed reactor claimed in claim 2 system, it is characterized in that, described injector is arranged in the mozzle; The transferring oil distributor is around the mozzle setting; Pressure-equalizing pipe is communicated with conical flow guiding body with space and its upper side space of low head; Mozzle is fixed on the conical flow guiding body bottom; Punching send device to be connected with the mozzle bottom.
6. according to ebullating bed reactor claimed in claim 2 system, it is characterized in that, described injector is made of trunnion section a, contraction section a, solid particle ingress pipe, mixing chamber cylindrical shell, contraction section b and trunnion section b.
7. according to ebullating bed reactor claimed in claim 2 system, it is characterized in that, described mozzle is made of conical head, cylindrical shell, connector, adapter and flange.
8. according to ebullating bed reactor claimed in claim 2 system, it is characterized in that, be airtight the connection between described mozzle and low head, conical flow guiding body.
9. according to ebullating bed reactor claimed in claim 2 system, it is characterized in that, described punching send device to send oil-in pipe, contraction section and trunnion to consist of by slurries inlet tube, slurries outlet, punching; Slurries outlet and punching are sent the oil-in to manage isometrical and are same axis; Contraction section, trunnion and punching send the oil-in pipe to be same axis.
10. according to ebullating bed reactor claimed in claim 2 system, it is characterized in that, described transferring oil distributor is made of endless tube and arm; Endless tube is sleeved on the mozzle outside, its endless tube axis and mozzle dead in line.
11. according to ebullating bed reactor claimed in claim 2 system, it is characterized in that, described conical flow guiding body is arranged on the equipment barrel bottom, is airtight the connection between the large end of its taper and equipment barrel.
12. according to ebullating bed reactor claimed in claim 4 system, it is characterized in that, described pressure-equalizing pipe is arranged on apart from cylindrical shell edge 100mm～300mm place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910188156 CN102049221B (en) | 2009-10-27 | 2009-10-27 | Boiling-bed reaction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910188156 CN102049221B (en) | 2009-10-27 | 2009-10-27 | Boiling-bed reaction system |
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| Publication Number | Publication Date |
|---|---|
| CN102049221A CN102049221A (en) | 2011-05-11 |
| CN102049221B true CN102049221B (en) | 2013-01-23 |
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| CN 200910188156 Active CN102049221B (en) | 2009-10-27 | 2009-10-27 | Boiling-bed reaction system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103962067B (en) * | 2013-01-31 | 2017-02-08 | 中国科学院上海高等研究院 | Method for carrying out slurry bed reaction |
| CN109999730B (en) * | 2019-04-26 | 2022-02-25 | 河南百优福生物能源有限公司 | Online catalyst filling method and device for biomass pyrolysis liquid fluidized bed reactor |
| CN109999731B (en) * | 2019-04-26 | 2022-04-12 | 河南百优福生物能源有限公司 | Online catalyst filling method and device for biomass pyrolysis liquid fluidized bed reactor |
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