CN102049221A - Boiling-bed reaction system - Google Patents
Boiling-bed reaction system Download PDFInfo
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- CN102049221A CN102049221A CN2009101881566A CN200910188156A CN102049221A CN 102049221 A CN102049221 A CN 102049221A CN 2009101881566 A CN2009101881566 A CN 2009101881566A CN 200910188156 A CN200910188156 A CN 200910188156A CN 102049221 A CN102049221 A CN 102049221A
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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 online filling technology of a kind of catalyst and device, belong to petrochemical industry, especially for the online loading system of the catalyst of ebullating bed reactor technology.
Background technology
All there is the solid particle transportation problem in 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 table of equipment number is many, shortcomings such as power consumption is big, pump serious wear, the cycle of operation is short, the maintenance amount is big, operating cost height.Use the flow passage part of maximum centrifugal type slurry pumps at present,, not only caused the significant wastage of human and material resources, and influenced the ordinary production of device as being generally 500～1000 hours service lifes such as impeller, sheath axle, spiral case.
Chinese patent CN86209508U has introduced a kind of vertical hydraulic conveyor, 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 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, constitute by equipment such as ash pump, high-pressure hydraulic pump, oil motor, oil pump, valve groups, be used for ore deposit oar, thermal power plant's fire coal and lime-ash and carry, exist device numerous and diverse, need the slag stock pump to carry and easy shortcomings such as obstruction.
The ebullated bed technology can be handled weight, the inferior feedstock oil of high metal, high asphalt content, have pressure fall 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 characteristics such as shut-downs, the residual hydrogenation field more than, the impurity big especially for viscosity.The online filling of this arts demand catalyst, if only implement waterpower towards sending, it carries the solid holdup of slurries to be effectively controlled: dash and send when solid holdup is high in the process, easy blocking pipe, wearing and tearing valve and equipment, dash and to send the process solid holdup to cross when low, the required liquor charging liquid measure of dashing is big, bigger to the influence 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 that can realize online filling catalyst.Ebullating bed reactor of the present invention system comprises the online filling of a cover catalyst jar, can serve as to carry liquid with the reactor outlet distillate, by getting the raw materials ready-annotate two stages, employing waterpower mode of movement, the online filling of realization catalyst.
Ebullating bed reactor of the present invention system comprises fluidized bed reactor, transferring oil storage tank, catalyst filling jar and pump; Catalyst filling tank top is connected with the fluidized bed reactor outlet gas line by pipeline; Catalyst filling pot 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 catalyst filling jar 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 jar comprises equipment end socket, cylindrical shell, mozzle, transferring oil distributor, injector, taper baffle and dashes and send device; Described taper baffle is positioned at the cylindrical shell bottom, with between the cylindrical shell for airtight the connection; Mozzle is fixed on taper baffle bottom, forms airtight the connection with low head; Injector is positioned at mozzle, its main shaft and mozzle dead in line; Dash and 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 inlet at described upper cover.Edge can also be provided with pressure-equalizing pipe at the distance cylindrical shell, and its lower end is airtight the connection with the taper baffle; The upper end is goed deep in the upper cover; The upper end can be provided with rain cap.
According to ebullating bed reactor provided by the invention system, catalyst filling wherein jar can be finished the online filling of catalyst by getting the raw materials ready-annotate two stages.In catalyst filling jar the transferring oil distributor is set, 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; The taper baffle 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; Be provided with to dash and send device, inject transferring oil,, realize carrying secretly, dash and send boiling bed hydrogenation catalyst towards sending the device porch to form little negative pressure; The transferring oil distributor is regulated with oil mass with towards sending with the triangular ratio of oil mass with oil mass, injection, can realize the control of slurries solid holdup in the course of conveying; The taper baffle is set, is convenient to the solid particle landing and, uses oil mass thereby reduce to carry in the gathering of bottom; Pressure-equalizing pipe is set, when equipment needs pressure-bearing, eliminates the pressure-bearing of taper baffle, 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, dashing send oily consumption few, catalyst granules in course of conveying without delivery pump, the wearing and tearing of mechanical rotation have been avoided to catalyst, avoided the abrasion of catalyst simultaneously, be applicable to continuous or online discontinuously filling fresh catalyst in fluidized bed reactor pump.
Description of drawings
Fig. 1 is an ebullating bed reactor system schematic of the present invention.
Fig. 2 is a catalyst filling jar structure schematic diagram of the present invention.
01-reactor wherein, 02-catalyst filling jar, 03-transferring oil storage tank, the 04-pump, 05-equipment end socket, the 06-pressure-equalizing pipe, the 07-cylindrical shell, the 08-injector, 09-taper baffle, 010-mozzle, 011-dash and send device, 012-transferring oil distributor.The 1-feed(raw material)inlet, 2-catalyst filler, the outlet of 3-slurries, 4-dashes and send the oil-in, 5-flux oil inlet, 6-transferring oil inlet, 7-oil gas inlet, 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 inlet, 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
It serves as to carry liquid that the online filling of catalyst of ebullating bed reactor of the present invention system is achieved in that with the reactor outlet distillate, by getting the raw materials ready two stages of filling, realizes the online filling of catalyst.The stage of getting the raw materials ready is by adding catalyst, closed catalyst filling jar, vacuumizing, import nitrogen, secondary vacuum pumping, input hydrogen, catalyst filling apparatus top and be communicated with seven with the fluidized bed reactor top and go on foot operations and form; The filling stage is by slurrying, dilution and dash and send three processes to form.
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 jar 02, transferring oil storage tank 03 and pump 04; The transferring oil of transferring oil storage tank 03 inlet 14 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, controls the opening and closing that transferring oil enters the mouth.The transferring oil storage tank is connected with pump 04 by process pipelines 13, and described pump is connected with catalyst filling jar 02 with 6 by pipeline 4,5 respectively; Catalyst filling tank top oil gas inlet 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 jar 02 comprises equipment end socket 05, pressure-equalizing pipe 06, cylindrical shell 07, injector 08, taper baffle 09, mozzle 010, transferring oil distributor 012 and dashes and send device 011.Catalyst filling jar adds mouth 8 except that catalyst is set at upper cover, oil gas inlet 7, vacuum orifice 9, nitrogen inlet 10, hydrogen inlet 11 and drain 12 also are set on diverse location, can realize pressure balance, input nitrogen respectively, vacuumize, import functions such as hydrogen and oil gas emptying.
Catalyst filling jar 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 taper baffle.Described dash send device 011 by slurries inlet tube, slurries outlet, dash and send oil-in 4, contraction section and trunnion to constitute; The slurries outlet send the oil-in pipe isometrical and be same axis with dashing; Contraction section, trunnion and dash and 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.Taper baffle 09 is arranged on the bottom of cylindrical shell 07, is airtight the connection between the big 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 the taper baffle; The upper end is goed deep in the upper cover; The upper end is provided with rain cap.
By regulating distributor conveying oil mass, injector conveying oil mass and dashing and send device to carry the triangular ratio of oil mass, can realize the control of solid holdup; The taper baffle is set, is convenient to the solid particle landing and, uses oil mass thereby reduce to carry in the gathering of bottom; Pressure-equalizing pipe is set, when equipment needs pressure-bearing, eliminates the pressure-bearing of taper baffle, 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 that preparation, the catalyst of carrying liquid feed intake, online filling and four steps of stopping work.
Carry the preparation of 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, the opening and closing of control transferring oil inlet, and the abundance that realizes 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 mouth from the catalyst of upper cover after metering and is filled in the catalyst filling jar, closes catalyst and adds mouth; Catalyst filling jar is extracted into the certain vacuum degree, gets rid of a jar interior air; Close process pipelines 9 after reaching the certain vacuum degree, be communicated with nitrogen pipeline 10, nitrogen injection in catalyst filling jar is closed nitrogen pipeline after reaching setting pressure; Be communicated with process pipelines 9, catalyst filling jar is extracted into vacuum, a nitrogen in getting rid of jar is closed process pipelines 9 after reaching the certain vacuum degree; Be communicated with hydrogen gas lines 11, injection hydrogen in catalyst filling jar is closed hydrogen gas lines 11 after reaching setting pressure; Open process pipelines 7 with reactor and catalyst filling jar connection, two equipment are in isopiestic state.So far, finished the operation that adds of catalyst.
Online filling: start pump 04, open transferring oil inlet 6, to catalyst filling jar injection transferring oil, the transferring oil that the ring pipe lower surface aperture of transferring oil distributor injects makes catalyst have flowability by transferring oil distributor 012; 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 inlet 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, suck catalyst slurry, under the baffling of mozzle conical head, catalyst slurry flows downward from the annular space between injector and the mozzle, flows into to dash to send device; Open to dash and send oil-in 4, forming jet in the device towards sending, go into 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 to dash.
Finish filling: close process pipelines 7, pump 04 and process pipelines 13 after the catalyst filling is finished, the process pipelines between reactor and catalyst filling apparatus 2 is disconnected, open blow-down pipe 12, oil gas in the jar is delivered to high subsystem; Be communicated with nitrogen pipeline 10, nitrogen injection in catalyst filling jar purges oil gas in the jar 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 reactor, transferring oil storage tank, catalyst filling jar and pump, and described catalyst filling tank top is connected with the fluidized bed reactor outlet gas line by pipeline; Catalyst filling apparatus bottom is connected with reactor 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 apparatus 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 the described ebullating bed reactor of claim 1 system, it is characterized in that described catalyst filling jar comprises equipment end socket, cylindrical shell, mozzle, transferring oil distributor, injector, taper baffle and dashes and send device; Described taper baffle is positioned at the cylindrical shell bottom, with between the cylindrical shell for airtight the connection; Mozzle is fixed on taper baffle bottom, forms airtight the connection with low head; Injector is arranged in the mozzle, its main shaft and mozzle dead in line; Dash and send device to be connected with the mozzle bottom.
3. according to the described ebullating bed reactor of 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 the described ebullating bed reactor of claim 2 system, it is characterized in that have manhole and gas phase inlet at described upper cover, edge is provided with pressure-equalizing pipe at the distance cylindrical shell, its lower end is airtight the connection with the taper baffle; The upper end is goed deep in the upper cover, and the upper end is provided with rain cap.
5. according to the described ebullating bed reactor of 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 the taper baffle with the space and its upper side space of low head; Mozzle is fixed on taper baffle bottom; Dash and send device to be connected with the mozzle bottom.
6. according to the described ebullating bed reactor of 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 the described ebullating bed reactor of claim 2 system, it is characterized in that described mozzle is made of conical head, cylindrical shell, connector, adapter and flange.
8. according to the described ebullating bed reactor of claim 2 system, it is characterized in that, be airtight the connection between described mozzle and low head, taper baffle.
9. according to the described ebullating bed reactor of claim 2 system, it is characterized in that described dash send device by slurries inlet tube, slurries outlet, constitute towards flow pipe, contraction section and trunnion; Slurry pipe outlet send the water inlet pipe isometrical and be same axis with dashing; Contraction section, trunnion and dash that to send the water inlet pipe be same axis.
10. according to the described ebullating bed reactor of 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., it is characterized in that described taper baffle is arranged on the equipment barrel bottom according to the described ebullating bed reactor of claim 2 system, be airtight the connection between the big end of its taper and equipment barrel.
12., it is characterized in that described pressure-equalizing pipe is arranged on apart from equipment barrel edge 100mm～300mm place according to the described ebullating bed reactor of claim 2 system; Its lower end is airtight the connection with the taper water conservancy diversion; The upper end is goed deep in the equipment upper cover; The upper end is provided with rain cap.
Priority Applications (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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| 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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| CN102049221A true CN102049221A (en) | 2011-05-11 |
| CN102049221B CN102049221B (en) | 2013-01-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962067A (en) * | 2013-01-31 | 2014-08-06 | 中国科学院上海高等研究院 | Method for carrying out slurry bed reaction |
| CN109999730A (en) * | 2019-04-26 | 2019-07-12 | 河南百优福生物能源有限公司 | A kind of online charging method of catalyst and device of biomass pyrolysis liquid fluidized bed reactor |
| CN109999731A (en) * | 2019-04-26 | 2019-07-12 | 河南百优福生物能源有限公司 | The online charging method of the catalyst of biomass pyrolysis liquid fluidized bed reactor and device |
-
2009
- 2009-10-27 CN CN 200910188156 patent/CN102049221B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962067A (en) * | 2013-01-31 | 2014-08-06 | 中国科学院上海高等研究院 | Method for carrying out slurry bed reaction |
| 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 |
| CN109999730A (en) * | 2019-04-26 | 2019-07-12 | 河南百优福生物能源有限公司 | A kind of online charging method of catalyst and device of biomass pyrolysis liquid fluidized bed reactor |
| CN109999731A (en) * | 2019-04-26 | 2019-07-12 | 河南百优福生物能源有限公司 | The online charging method of the catalyst of biomass pyrolysis liquid fluidized bed reactor and device |
| 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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| Publication number | Publication date |
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| CN102049221B (en) | 2013-01-23 |
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