CN102962011A - Efficient heat exchange reactor - Google Patents
Efficient heat exchange reactor Download PDFInfo
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- CN102962011A CN102962011A CN2012104734927A CN201210473492A CN102962011A CN 102962011 A CN102962011 A CN 102962011A CN 2012104734927 A CN2012104734927 A CN 2012104734927A CN 201210473492 A CN201210473492 A CN 201210473492A CN 102962011 A CN102962011 A CN 102962011A
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Abstract
The invention discloses an efficient heat exchange reactor comprising a reactor body. The reactor body is a cylinder body provided with an upper end socket and a lower end socket, and the reactor body is provided with a feed port, a discharge port, a heat-conducting medium feed port, a heat-conducting medium discharge port, a gas feed port and a gas discharge port. The efficient heat exchange reactor is characterized in that at least one sleeve pipe is arranged in the reactor body; each sleeve pipe is composed of an inner pipe and an outer pipe nested with each other; both ends of the inner pipe are exposed out of the outer pipe; both ends of the outer pipe are closed and are respectively communicated with the heat-conducting medium feed port and the heat-conducting medium discharge port; the gas feed port is communicated with the inner pipe or an exhaust pipe; when the gas feed port is communicated with the inner pipe, the bottom of the inner pipe is closed; and when the gas feed port is communicated with the exhaust pipe, seriflux on the periphery of each sleeve pipe is surrounded by gas released from the exhaust pipe. The seriflux constantly flows repeatedly in the reactor so that the heat and mass transfer efficiency is strengthened, the heat exchange is good, the efficient heat exchange reactor is suitable for strong exothermic slurry reaction, and reaction heat is removed timely.
Description
Technical field
The present invention relates to a kind of paste state bed reactor, be applicable to strong heat release slurry reactor.
Background technology
Paste state bed reactor is mainly used in the fields such as biochemical industry, sewage disposal, medication chemistry, agricultural byproducts processing, fine chemistry industry, petrochemical industry, Coal Chemical Industry, chemical industry metallurgical.Some slurry attitude beds operate at normal temperatures and pressures, and what have operates under normal temperature high voltage, have in the normal pressure lower operation of heating, the operation under the pressurization of heating that has.
Application number is that 01118470.1 Chinese patent discloses a kind of slurry attitude bed synthetic reaction device.This device is produced methyl alcohol and dimethyl ether for the synthesis of gas.Unstrpped gas enters bed from the reactor bottom gas distributor, and slurries and solid catalyst then strengthen heat, matter transfer function by the device outer circulation.Application number is 200410012366.7 to disclose a kind of efficient reactor with paddle bed, and its main application also is to produce methyl alcohol and dimethyl ether with synthesis gas.
Application number is the gas-liquid-solid three-phase slurry attitude bed industrial reactor that 03151109.0 Chinese patent discloses a kind of continued operation, is used for the synthetic fuel oil of producing of Fischer-Tropsch.Synthesis gas enters bed from reactor bottom through distributor, and bed arranges the multistage heat exchanger and pipettes the heat that course of reaction produces.Application number is that 200620024844.0 Chinese patent discloses a kind of coal liquefaction artificial oil reactor, also is used for the synthetic fuel oil of producing of Fischer-Tropsch.
Application number is that 200720155903 Chinese patent discloses a kind of Novel internal circulation paste state bed reactor, produces the organic matters such as hydro carbons, alcohols, ethers, lipid for the synthesis of gas.This reactor center arranges a up big and down small riser, and gas and slurries therefrom upwards flow.The riser tube wall twines coil pipe, is used for pipetting the reaction release heat.This reactor is used for DCL/Direct coal liquefaction or coal and faces when hydrogen transforms and at first can run into the slurries short circuit problem, and namely the entrance slurries directly flow out from outlet at bottom, and do not enter riser; Secondly when suitability for industrialized production, adopt a so-called riser, because diameter is large, be difficult to guarantee that distribution of gas is even; The 3rd, bubble to flowing, if bed is higher, because the poly-loose effect of bubble can form too many air pocket, causes bed unstable in a riser when air pocket breaks; The 4th, the solid particles sediment problem is not considered in the reactor bottom design, if be used for the Coal liquefaction operation, easily forms the dead angle, causes coking.
Application number is that 200710037008.5 Chinese patent patent discloses a kind of slurry reactor device and application thereof with interior circulation and external heat-exchanging.So-called interior circulation refer to that reactor bottom exists gas in circulation, this reactor is mainly used in synthesis gas and produces liquid fuel.
For strong exothermal reaction, in time remove reactor extremely important.Pipette heat with heat exchanger merely and can solve the strong heat release problem of part slurry attitude bed.And the slurries flow rate is lower in some paste state bed reactor, only depends on the heat exchanger effect unsatisfactory.
Summary of the invention
The purpose of this invention is to provide a kind of heat transfer effect better, the heat exchange reactor that can in time reaction heat be removed.
In order to achieve the above object, the invention provides a kind of High Efficiency Thermal exchange reactor, comprise reactor body, reactor body is the cylinder that is provided with upper cover and low head, reactor body is provided with charging aperture, discharging opening, heat-conducting medium charging aperture, heat-conducting medium discharging opening, gas feed mouth and gas discharging opening, it is characterized in that, is provided with at least one sleeve pipe in the reactor body, every sleeve pipe is comprised of mutually nested inner tube and outer tube, and expose from the two ends of outer tube at the two ends of inner tube; The closed at both ends of outer tube and being communicated with heat-conducting medium charging aperture, heat-conducting medium discharging opening respectively; The gas feed mouth is communicated with inner tube or blast pipe; When the gas feed mouth is communicated with inner tube, the bottom lock of inner tube; When the gas feed mouth was communicated with blast pipe, the gas that discharges from blast pipe surrounded the slurries around the every sleeve pipe.
Preferably, the internal diameter of described inner tube is 0.01～1.0 meter, and the distance between inner tube and the described outer tube is 0.01～0.3 meter.
Further, the internal diameter of described inner tube is 0.01～0.2 meter, and the distance between inner tube and the described outer tube is 0.01～0.1 meter.
Further, the internal diameter of described inner tube is 0.1～0.5 meter, and the distance between inner tube and the described outer tube is 0.05～0.2 meter.
Preferably, the height of described sleeve pipe is 1/2～4/5 of height for reactor.
Preferably, the top of described inner tube is lower than 0.5～5.0 meter of the interior liquid level of reactor.
Further, the top of described inner tube is lower than 0.6～3.0 meter of the interior liquid level of reactor.
Generally between 0.05～10 meter, small-sized or medium-sized examination experimental size device internal diameter is less for the reactor body internal diameter.Generally between 0.5 meter～50 meters, concrete height is required to determine by course of reaction height for reactor.Low head can be part spheroidal or ellipse, also can be conical.Upper cover is part ball or ellipse.The juncture of upper cover and cylindrical shell is detachable, is convenient to sleeve pipe and installs and maintenance.
Sleeve pipe is distributed in the reactor, is fixed by inner member, and sleeve pipe quantity is detachable form between 1～200.Every sleeve pipe is welded by two different tubing of diameter, the fluid-mixing of the flat body of sleeve pipe tube side and slurries, circulation in forming in reactor; The shell side heat-conducting medium of flowing through can in time be removed reaction heat.The heat-conducting medium pipeline is connected in parallel between the sleeve pipe shell side, but upper entering and lower leaving, but also bottom in and top out, visual response fuel factor and deciding.The escape pipe that sleeve bottom arranges adopts gas distributor, and internal diameter hour can arrange gas spray pipe or nozzle.The sleeve bottom edge can carry out Height Adjustment according to the geometry of reactor lower part end socket, to avoid reactor bottom slurries flow " dead band ".
Liquid-phase outlet can be at reactor lower part, also can be at liquid level place, reactor top.The demand of definite Main Basis reaction system of its position can be located at reactor bottom with liquid-phase outlet such as Fischer-Tropsch synthesis, and oily coal faces hydrogen and refines altogether reaction and liquid-phase outlet can be located at reactor top.Gaseous phase outlet is located at reactor head.
Advantage of the present invention is: slurries constantly circulate in reactor, have strengthened heat, matter transmission efficiency, and heat transfer effect is good, is applicable to strong heat release slurry reactor, in time removes reaction heat.
Description of drawings
Fig. 1 is the structural representation of the heat exchange reactor that is connected with inner tube of gas feed mouth;
Fig. 2 is the structural representation of the heat exchange reactor that is connected with blast pipe of gas feed mouth.
Among the figure:
1, reactor body; 2, charging aperture; 3, discharging opening;
4, heat-conducting medium charging aperture; 5, heat-conducting medium discharging opening; 6, gas feed mouth;
7, gas discharging opening; 8, inner tube; 9, outer tube;
10, blast pipe; 11, upper cover; 12, low head;
13, gas, liquid interface.
The specific embodiment
For the present invention is become apparent, hereby with preferred embodiment, and cooperate accompanying drawing to be described in detail below.
Embodiment 1
As shown in Figure 1, be the structural representation of High Efficiency Thermal exchange reactor provided by the invention, comprise reactor body 1, reactor body 1 is for being provided with the cylinder of upper cover 11 and low head 12.The top of reactor body 1 is provided with charging aperture 2, gas discharging opening 7, and the bottom is provided with discharging opening 3, heat-conducting medium charging aperture 4, gas feed mouth 6, and top, side is provided with heat-conducting medium discharging opening 5.Be provided with 4 sleeve pipes in the reactor body 1, every sleeve pipe is comprised of mutually nested inner tube 8 and outer tube 9, and expose from the two ends of outer tube 9 at the two ends of inner tube 8.The closed at both ends of outer tube 9, the bottom is communicated with heat-conducting medium charging aperture 4, and the top is communicated with heat-conducting medium discharging opening 5.The bottom sealing of inner tube 8, this end is communicated with gas feed mouth 6.
When being used for Fischer-Tropsch synthesis, reactor operating pressure 2.9MPa, 250 ℃ of operating temperatures, slurries enter in the reactor body 1 from charging aperture 2, are evenly distributed on from top to bottom in reactor body 1 and the inner tube 8; With CO and H
2Be that main synthesis gas enters reactor body 1 from gas feed mouth 6, enter in the inner tube 8 by the bottom of gas service pipes from inner tube 8, and move upward.Slurries (containing a certain amount of catalyst) in inner tube 8 are interior to mobile (shown in the 8 interior arrows of inner tube among Fig. 1) in inner tube 8 after mixing, the empty bed of inner tube 8 interior gas phases speed is between 0.05～0.4m/s, and the heat-conducting medium that the heat that reaction discharges is entered from heat-conducting medium charging aperture 4 between outer tube 9 and the inner tube 8 absorbs.Circulation (shown in the 1 interior arrow of reactor body among Fig. 1) in slurries in the reactor body 1 flow downward and participate in, gas then continues to move upward, in gas, 13 places, liquid interface and liquid phase separation, gas can recycle with live gas through processing from gas discharging opening 7 outflow reactor main bodys 1.In the reactor body 1, the outer slurries of sleeve pipe flow downward, and the slurries 9 in the inner tube 8 upwards flow, and circulation in forming makes the flow rate of slurries larger, has also strengthened heat transfer effect.
The heat-conducting medium temperature is between 150～230 ℃, enter reactor body 1 from heat-conducting medium charging aperture 4, flow out from the heat-conducting medium discharging opening 5 on the top of inner tube 8, the heat of absorption recycles through after the heat exchange namely from heat-conducting medium discharging opening 5 outflow reactor main bodys 1 again.Heat-conducting medium adopts hydrocarbon ils, also can adopt the silicone oil of stable in properties.
Embodiment 2
As shown in Figure 2, be another kind of High Efficiency Thermal exchange reactor provided by the invention, difference from Example 1 is, the bottom of inner tube 8 is the open end, a blast pipe vertical with sleeve pipe 10 is set reactor body 1 is interior, have a plurality of duck eyes on the blast pipe 10, duck eye is evenly distributed on around the every sleeve pipe.
After gas enters blast pipe 10 from gas feed mouth 6, be released in around the sleeve pipe, (shown in the arrow around Fig. 2 middle sleeve) reacted in the encirclement of slurries around the sleeve pipe, and gas wrapping slurries in reactor body 1, upwards flows around every sleeve pipe; Slurries enter reactor body 1 from charging aperture 2, flow to inner tube 8 bottoms from the top of inner tube 8 and discharge (shown in the 8 interior arrows of inner tube Fig. 2), form circulation with the gas-liquid mixture that upwards flows.From the distribution of gas angle, when sleeve pipe quantity was more, the distribution of gas of embodiment 1 was better than embodiment 2.
Embodiment 3
On Pilot Unit, the diameter of reactor body 1 is 0.07 meter, highly is 2.0 meters.Reactor body 1 is interior to arrange a sleeve pipe, and the internal diameter of inner tube 8 is 0.03 meter, and the spacing between inner tube 8 and the outer tube 9 is 0.012 meter, and inner tube 8 highly is 1.6 meters.The connected mode of gas feed mouth 6 such as embodiment 1.After the reactor normal operating, 250 ℃ of temperature, operating pressure 2.9MPa, catalyst are Fe-series catalyst, the gas agent is than being 7.5Nm
3/ b/kg, gas is 0.25m/s in inner tube 8 air speeds.Reaction result is: the CO conversion ratio is 92%, H
2Conversion ratio is 85%, CO
2Selectively be 21%, CH
4Selectively be 2.5%.Take silicone oil as heat-conducting medium, it is stable that 220 ℃ of inlet temperatures can be kept the reactor operating temperature.
Embodiment 4
The High Efficiency Thermal exchange reactor that adopts embodiment 1 to provide.The gas agent is than being 7.3Nm
3/ h/kg, gas is 0.21m/s in inner tube 8 air speeds.Reaction result is: the CO conversion ratio is 94%, H
2Conversion ratio is 86%, CO
2Selectively be 20%, CH
4Selectively be 2.2%.Take silicone oil as heat-conducting medium, it is stable that 230 ℃ of inlet temperatures can be kept the reactor operating temperature.
Embodiment 5
The High Efficiency Thermal exchange reactor that adopts embodiment 1 to provide.The gas agent is than being 7.5Nm
3/ h/kg, gas is 0.21m/s in inner tube 8 air speeds.Reaction result is: the CO conversion ratio is 91%, H
2Conversion ratio is 84%, CO
2Selectively be 23%, CH
4Selectively be 2.3%.Take silicone oil as heat-conducting medium, it is stable that 232 ℃ of inlet temperatures can be kept the reactor operating temperature.
Claims (7)
1. High Efficiency Thermal exchange reactor, comprise reactor body (1), reactor body (1) is for being provided with the cylinder of upper cover (11) and low head (12), reactor body (1) is provided with charging aperture (2), discharging opening (3), heat-conducting medium charging aperture (4), heat-conducting medium discharging opening (5), gas feed mouth (6) and gas discharging opening (7), it is characterized in that, reactor body is provided with at least one sleeve pipe in (1), every sleeve pipe is comprised of mutually nested inner tube (8) and outer tube (9), and expose from the two ends of outer tube (9) at the two ends of inner tube (8); The closed at both ends of outer tube (9) and being communicated with heat-conducting medium charging aperture (4), heat-conducting medium discharging opening (5) respectively; Gas feed mouth (6) is communicated with inner tube (8) or blast pipe (10); When gas feed mouth (6) and inner tube (8) when being communicated with, the bottom lock of inner tube (8); When gas feed mouth (6) and blast pipe (10) when being communicated with, the slurries encirclement of the gas that from blast pipe (10), discharges around will every sleeve pipe.
2. a kind of High Efficiency Thermal exchange reactor according to claim 1 is characterized in that, the internal diameter of described inner tube (8) is 0.01～1.0 meter, and the distance between inner tube (8) and the described outer tube (9) is 0.01～0.3 meter.
3. a kind of High Efficiency Thermal exchange reactor according to claim 2 is characterized in that, the internal diameter of described inner tube (8) is 0.01～0.2 meter, and the distance between inner tube (8) and the described outer tube (9) is 0.01～0.1 meter.
4. a kind of High Efficiency Thermal exchange reactor according to claim 2 is characterized in that, the internal diameter of described inner tube (8) is 0.1～0.5 meter, and the distance between inner tube (8) and the described outer tube (9) is 0.05～0.2 meter.
5. a kind of High Efficiency Thermal exchange reactor according to claim 1 is characterized in that, the height of described sleeve pipe is 1/2～4/5 of height for reactor.
6. a kind of High Efficiency Thermal exchange reactor according to claim 1 is characterized in that, the top of described inner tube (8) is lower than 0.5～5.0 meter of the interior liquid level of reactor.
7. a kind of High Efficiency Thermal exchange reactor according to claim 6 is characterized in that, the top of described inner tube (8) is lower than 0.6～3.0 meter of the interior liquid level of reactor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210473492.7A CN102962011B (en) | 2012-11-20 | 2012-11-20 | A kind of High Efficiency Thermal exchange reactor |
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| CN201210473492.7A CN102962011B (en) | 2012-11-20 | 2012-11-20 | A kind of High Efficiency Thermal exchange reactor |
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Citations (7)
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|---|---|---|---|---|
| WO2002096835A2 (en) * | 2001-05-25 | 2002-12-05 | Bp Exploration Operating Company Limited | Fischer-tropsch synthesis process |
| CA2508505A1 (en) * | 2004-05-29 | 2005-11-29 | Haldor Topsoe A/S | Heat exchange process and reactor |
| WO2006097906A1 (en) * | 2005-03-17 | 2006-09-21 | Sasol Technology (Proprietary) Limited | Production of liquid and, optionally, gaseous products from gaseous reactants |
| CN201052457Y (en) * | 2007-07-03 | 2008-04-30 | 中国石油大学(北京) | Novel inner circulation slurry-bed reactor |
| CA2680688A1 (en) * | 2007-09-29 | 2009-04-09 | Synfuels China | A gas-liquid-solid three-phase suspension bed reactor for fischer-tropsch synthesis and its applications |
| CN102416307A (en) * | 2010-09-27 | 2012-04-18 | 中国石油化工股份有限公司 | Internal recycling slurry bed reactor and application thereof |
| CN202921278U (en) * | 2012-11-20 | 2013-05-08 | 迈瑞尔实验设备（上海）有限公司 | Efficient heat exchange reactor |
-
2012
- 2012-11-20 CN CN201210473492.7A patent/CN102962011B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002096835A2 (en) * | 2001-05-25 | 2002-12-05 | Bp Exploration Operating Company Limited | Fischer-tropsch synthesis process |
| CA2508505A1 (en) * | 2004-05-29 | 2005-11-29 | Haldor Topsoe A/S | Heat exchange process and reactor |
| WO2006097906A1 (en) * | 2005-03-17 | 2006-09-21 | Sasol Technology (Proprietary) Limited | Production of liquid and, optionally, gaseous products from gaseous reactants |
| CN201052457Y (en) * | 2007-07-03 | 2008-04-30 | 中国石油大学(北京) | Novel inner circulation slurry-bed reactor |
| CA2680688A1 (en) * | 2007-09-29 | 2009-04-09 | Synfuels China | A gas-liquid-solid three-phase suspension bed reactor for fischer-tropsch synthesis and its applications |
| CN102416307A (en) * | 2010-09-27 | 2012-04-18 | 中国石油化工股份有限公司 | Internal recycling slurry bed reactor and application thereof |
| CN202921278U (en) * | 2012-11-20 | 2013-05-08 | 迈瑞尔实验设备（上海）有限公司 | Efficient heat exchange reactor |
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