CN203484135U - Efficient tubular shell fixing bed reaction device for preparing glycol with synthesis gas - Google Patents
Efficient tubular shell fixing bed reaction device for preparing glycol with synthesis gas Download PDFInfo
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- CN203484135U CN203484135U CN201320566908.XU CN201320566908U CN203484135U CN 203484135 U CN203484135 U CN 203484135U CN 201320566908 U CN201320566908 U CN 201320566908U CN 203484135 U CN203484135 U CN 203484135U
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Abstract
The utility model relates to a device for preparing glycol with synthesis gas and provides an efficient tubular shell fixing bed reaction device for preparing glycol with synthesis gas. The efficient tubular shell fixing bed reaction device for preparing glycol with synthesis gas comprises a tube shell reactor; the tube shell reactor comprises a closed shell, reaction tubes, an upper pattern plate and a lower pattern plate; the upper pattern plate and the lower pattern plate are respectively fixed at the upper part and the lower part in the shell; two ends of the reaction tubes penetrate through the upper pattern plate and the lower pattern plate; the reaction tubes are fixed on the upper pattern plate and the lower pattern plate; a reaction product outlet is arranged at the bottom of the shell. The efficient tubular shell fixing bed reaction device for preparing glycol with synthesis gas is characterized by also comprising a gas distributor and a water distributor; the gas distributor is arranged in the shell at the upper part of the upper pattern plate and is communicated with a reaction gas inlet in the top of the shell; one end of the water distributor is inserted into the shell above the lower pattern plate. The efficient tubular shell fixing bed reaction device for preparing glycol with synthesis gas is simple in equipment and flow, easy for implementation, small in investment, highly reinforced in the heat conduction process, industrially applied and stable in operation, and the conversion rate of the main reactants is extremely high.
Description
Technical field
The utility model relates to the device of being prepared ethylene glycol by synthesis gas, particularly a kind of high-efficiency pipe shell mould fixed-bed reactor of being prepared ethylene glycol by synthesis gas.
Background technology
Gas in industrial production, solid catalysis exothermal reaction process commonly carry out in fixed bed reactors.Conventional tube-shell type fixed bed reactor, is divided into catalyst and is placed in pipe and is placed in two kinds outside pipe.The opposite side of tube wall is for being used for removing the cooling medium of heat that exothermic reaction in beds produces.And with the difference of cooling medium, being divided into again two large classes, a class is to using unstripped gas or non-unstripped gas gas as cooling medium, removes reaction heat, the successive reaction-heat transfer process simultaneously self heating up; Another kind of is to using aqueous water as cooling medium, removes reaction heat, simultaneously the process of byproduct steam.But the shell pipe type gas-solid of this two classes routine fixes bed bioreactor, be suitable for that conversion per pass is not too high, exothermic heat of reaction amount is not too strong, the wider chemical reaction industrial process of active warm area of catalyst.For the very high strong exothermal reaction of conversion per pass, and the active warm area of catalyst narrower situation again, above-mentioned reactor may exist that localized heat transfer is not good, bed overtemperature even temperature runaway, the accident potential such as damage that reactor, operation disruption, production stop.For example, for with coal, natural gas, shale gas and the special reaction process of producing the dehydrogenation of raw material carbon monoxide gas, nitrites and carbon monoxide carbonyl synthesis of oxalate in ethylene glycol process, these three high conversions of oxalic ester hydrogenation synthesizing of ethylene glycol, heat release by force, narrow warm area containing the plurality of raw materials resources such as industrial waste gas of CO, H2, exactly there is such characteristic and potential hidden danger, and device and the technology of employing this patent just can obtain effectively reply and control.
Utility model content
The purpose of this utility model is to provide a kind of high-efficiency pipe shell mould fixed-bed reactor of being prepared ethylene glycol by synthesis gas, the above-mentioned defect existing to overcome prior art.
The high-efficiency pipe shell mould fixed-bed reactor of being prepared ethylene glycol by synthesis gas of the present utility model, comprises shell-and-tube reactor;
Described shell-and-tube reactor comprises airtight housing, reaction tube, upper face plate and lower face plate;
Described upper face plate and lower face plate are separately fixed at the upper and lower in described housing, and upper face plate and lower face plate are passed respectively in the two ends of described reaction tube, and are fixed on upper face plate and lower face plate;
Reacting product outlet is arranged on the bottom of housing;
It is characterized in that, also comprise gas distributor and water distributor;
Described gas distributor is arranged in the housing on top of upper face plate, and is connected with the reaction gas entrance of case top;
Insert in the housing of lower face plate top one end of described water distributor.
Device of the present utility model, flow process and equipment are simple, and it is ingenious and reasonable to design, and several modification measures in reactor are easily implemented, and invest little.Because diabatic process has obtained highly enriched, react controlled, make similar with coal, natural gas, shale gas and containing the plurality of raw materials resources such as industrial waste gas of CO, H2 produce that the such main reaction thing conversion ratio of the dehydrogenation of ethylene glycol Raw carbon monoxide gas, methyl nitrite carbonyl synthesis of oxalate, oxalic ester hydrogenation synthesizing of ethylene glycol is high, exothermic heat of reaction amount greatly, the catalytic exothermic course of reaction of the active and extremely narrow type of operation warm area of catalyst, be able in industrial enforcement, and can stable operation.
Accompanying drawing explanation
Fig. 1 is for being prepared the high-efficiency pipe shell mould fixed-bed reactor structural representation of ethylene glycol by synthesis gas.
Fig. 2 is structure of reactor schematic diagram.
Fig. 3 is water distributor structural representation.
the specific embodiment
Referring to Fig. 1 and Fig. 2, the high-efficiency pipe shell mould fixed-bed reactor of being prepared ethylene glycol by synthesis gas of the present utility model, comprises shell-and-tube reactor 2;
Described shell-and-tube reactor 2 comprises airtight housing 201, reaction tube 202, upper face plate 203 and lower face plate 204;
Described upper face plate 203 and lower face plate 204 are separately fixed at the upper and lower in described housing 201, and upper face plate 203 and lower face plate 204 are passed respectively in the two ends of described reaction tube 202, and are fixed on upper face plate 203 and lower face plate 204;
Reacting product outlet is arranged on the bottom of housing 201;
It is characterized in that, also comprise gas distributor 6 and water distributor 7;
Described gas distributor 6 is arranged in the housing 201 on top of upper face plate 203, and is connected with the reaction gas entrance 201 at housing 201 tops;
Insert in the housing 201 of lower face plate 204 tops one end of described water distributor 7;
With further reference to Fig. 1, described gas distributor 6 comprises air inlet pipe 601 and is arranged on rectangle or the circular distribution of gas mouth 602 in air inlet pipe 601;
Further, referring to Fig. 3, described water distributor 7 comprises total endless tube 701 and the coupled logical distributor pipe that is provided with distribution aperture 702, described total endless tube 701 is looped around outside the bottom of housing 201, and be positioned at the top of lower face plate 204, described distributor pipe 702 passes housing 201 and extends horizontally in housing 201, and described distribution aperture is arranged on the bottom of distributor pipe 702;
The quantity of preferred distributor pipe 702 is 2～10, along housing, is uniformly distributed;
Further, referring to Fig. 2, described shell-and-tube reactor 2, also comprises the ways 8 that ring-type and plate-like are intersected, and described ways 8 is corrugated plating or flat board, and described ways 8 is arranged in the housing between upper face plate 203 and lower face plate 204;
Further, referring to Fig. 1, the described high-efficiency pipe shell mould fixed-bed reactor of being prepared ethylene glycol by synthesis gas, also comprises feed gas heater 1, drum 3, circulating pump 4 and replenishment pump 5;
The pre-heat outlet 101 of described feed gas heater 1 is connected with the reaction gas entrance 206 of described case top by pipeline; The heat source of described feed gas heater 1, can be steam, also the high-temperature gas of available reactor 2 outlets.
The gas-vapor mix outlet 205 on housing 201 tops is connected with the steam entrance 301 of drum 3 by pipeline, and byproduct steam outlet 303 is arranged on the top of drum 3;
Described replenishment pump 5 is connected with the fluid infusion mouth 304 of drum 3 by pipeline;
The other end of described water distributor 7, total endless tube 701 is connected with the condensation outlet 302 of drum 3 bottoms by circulating pump 4.
The utility model device is operation like this:
Unstripped gas is sent into feed gas heater to be preheated to after reaction temperature, from the pre-heat outlet 101 of preheater, flow out, by gas distributor 6, enter the tube side of reactor, loaded in the reaction tube 202 of catalyst: inert material=1:5～1:0 being divided into some layers, every layer, flow from top to bottom, there is in check strong exothermal reaction in limit, limit is passed to reaction heat outside reaction tube 202, in reactor shell side in forcing flow at high speed and because the strengthening turbulence of ripple eddy flow guiding deflection plate realizes the gas-vapor mix of the desalted water of efficient heat transfer.Desalted water is introduced by pipeline from the bottom of drum by circulating pump, after boosting, this pump enters the bottom of reactor shell side by pipeline, after water distributor distributes, in the violent turbulence uphill process of flow at high speed, absorb a large amount of reaction heat, part vaporization, becomes steam water interface, from the top of reactor shell side, draw, by pipeline, enter drum.In drum, realize the byproduct steam after vapour, water separation, from drum top, by pipeline, draw, remaining water, again by circulating pump Returning reactor, forms forced circulation loop.The desalted water consuming, is introduced and is supplemented by pipeline from external system by desalted water replenishment pump.
Methyl nitrite carbonylation synthesizes dimethyl oxalate reactor.Reactor diameter 4.4m, height overall 12m.Catalyst is spherical, Φ 4mm; Bulk density 0.95 ± 0.05kg/L, loaded catalyst 28m
3reaction tube Φ 38 * 2.0mm, anterior 1/3 highly interval catalyst: inert material=1:1 loads in mixture, the highly interval catalyst in rear portion 2/3: inert material=1:0 filling, arranges the parts such as annulus, disc ripple eddy flow guiding deflection plate, upper gas distributor and bottom water distribution arm in reactor.
With coal, natural gas, shale gas with containing the unstripped gas of the preparations such as industrial waste gas of CO, H2, reaction-ure inlet forms (%) and is
Mn 10 CO 20 NO 3 CH
3OH 8 N
2 59
Reactor operating procedure condition is: 120 ℃ of reactor inlet temperatures, 120-145 ℃ of reaction zone temperatures, reaction pressure 0.35 ± 0.05MPa, air speed 3000 ± 1000h
-1.
Under these conditions, catalyst activity data are: Mn conversion ratio >=78%, DMO selectively >=98%.
Reactor outlet material forms (%):
Mn 2.2 CO 12.6 NO 11.3 CH
3OH 8.4 N
2 61.4 DMO 4.1
With this understanding, the output of oxalate DMO is 18.36T/h, simultaneously the steam 11.86T/h of 120 ℃ of by-product temperature, the about 0.1Mpa of pressure.
Claims (7)
1. by synthesis gas, prepared the high-efficiency pipe shell mould fixed-bed reactor of ethylene glycol, comprise shell-and-tube reactor (2), described shell-and-tube reactor (2) comprises airtight housing (201), reaction tube (202), upper face plate (203) and lower face plate (204);
Described upper face plate (203) and lower face plate (204) are separately fixed at the upper and lower in described housing (201), the two ends of described reaction tube (202) are respectively through upper face plate (203) and lower face plate (204), and be fixed on upper face plate (203) and lower face plate (204), reacting product outlet is arranged on the bottom of housing (201), it is characterized in that, also comprise gas distributor (6) and water distributor (7);
Described gas distributor (6) is arranged in the housing (201) on top of upper face plate (203), and is connected with the reaction gas entrance (201) at housing (201) top;
Insert in the housing (201) of lower face plate (204) top one end of described water distributor (7).
2. the high-efficiency pipe shell mould fixed-bed reactor of being prepared ethylene glycol by synthesis gas according to claim 1, it is characterized in that, described gas distributor (6) comprises air inlet pipe (601) and is arranged on rectangle or the circular distribution of gas mouth (602) in air inlet pipe (601).
3. the high-efficiency pipe shell mould fixed-bed reactor of being prepared ethylene glycol by synthesis gas according to claim 1, it is characterized in that, described water distributor (7) comprises total endless tube (701) and the coupled logical distributor pipe that is provided with distribution aperture (702), described total endless tube (701) is looped around outside the bottom of housing (201), and be positioned at the top of lower face plate (204), described distributor pipe (702) passes housing (201) and extends horizontally in housing (201), and described distribution aperture is arranged on the bottom of distributor pipe (702).
4. the high-efficiency pipe shell mould fixed-bed reactor of being prepared ethylene glycol by synthesis gas according to claim 2, it is characterized in that, described water distributor (7) comprises total endless tube (701) and the coupled logical distributor pipe that is provided with distribution aperture (702), described total endless tube (701) is looped around outside the bottom of housing (201), and be positioned at the top of lower face plate (204), described distributor pipe (702) passes housing (201) and extends horizontally in housing (201), and described distribution aperture is arranged on the bottom of distributor pipe (702).
5. the high-efficiency pipe shell mould fixed-bed reactor of being prepared ethylene glycol by synthesis gas according to claim 3, is characterized in that, the quantity of distributor pipe (702) is 2～10, along housing, is uniformly distributed.
6. the high-efficiency pipe shell mould fixed-bed reactor of being prepared ethylene glycol by synthesis gas according to claim 1, it is characterized in that, described shell-and-tube reactor (2), also comprise the ways (8) that ring-type and plate-like are intersected, described ways (8) is corrugated plating or flat board, and described ways (8) is arranged in the housing between upper face plate (203) and lower face plate (204).
7. according to preparing the high-efficiency pipe shell mould fixed-bed reactor of ethylene glycol by synthesis gas described in claim 1～6 any one, it is characterized in that, also comprise feed gas heater (1), drum (3), circulating pump (4) and replenishment pump (5);
The pre-heat outlet (101) of described feed gas heater (1) is connected with the reaction gas entrance (206) of described case top by pipeline;
The gas-vapor mix outlet (205) on housing (201) top is connected with the steam entrance (301) of drum (3) by pipeline, and byproduct steam outlet (303) is arranged on the top of drum (3);
Described replenishment pump (5) is connected with the fluid infusion mouth (304) of drum (3) by pipeline;
The other end of described water distributor (7) is connected with the condensation outlet (302) of drum (3) bottom by circulating pump (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320566908.XU CN203484135U (en) | 2013-09-12 | 2013-09-12 | Efficient tubular shell fixing bed reaction device for preparing glycol with synthesis gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320566908.XU CN203484135U (en) | 2013-09-12 | 2013-09-12 | Efficient tubular shell fixing bed reaction device for preparing glycol with synthesis gas |
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| CN203484135U true CN203484135U (en) | 2014-03-19 |
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| CN201320566908.XU Expired - Fee Related CN203484135U (en) | 2013-09-12 | 2013-09-12 | Efficient tubular shell fixing bed reaction device for preparing glycol with synthesis gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979513A (en) * | 2016-01-15 | 2017-07-25 | 中国石化工程建设有限公司 | A kind of device and method for comprehensively utilizing reactor drum institute producing steam |
| CN108211778A (en) * | 2016-12-22 | 2018-06-29 | 中国石油天然气集团公司 | A kind of catalytic oxidation system and method for VOCs waste gas pollution control and treatments |
| CN109046183A (en) * | 2018-07-27 | 2018-12-21 | 北京嘉岳能源科技开发有限公司 | A kind of F- T synthesis fixed bed reactors thermal control system |
-
2013
- 2013-09-12 CN CN201320566908.XU patent/CN203484135U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979513A (en) * | 2016-01-15 | 2017-07-25 | 中国石化工程建设有限公司 | A kind of device and method for comprehensively utilizing reactor drum institute producing steam |
| CN108211778A (en) * | 2016-12-22 | 2018-06-29 | 中国石油天然气集团公司 | A kind of catalytic oxidation system and method for VOCs waste gas pollution control and treatments |
| CN108211778B (en) * | 2016-12-22 | 2020-10-09 | 中国石油天然气集团公司 | Catalytic oxidation system and method for VOCs waste gas treatment |
| CN109046183A (en) * | 2018-07-27 | 2018-12-21 | 北京嘉岳能源科技开发有限公司 | A kind of F- T synthesis fixed bed reactors thermal control system |
| CN109046183B (en) * | 2018-07-27 | 2021-11-23 | 北京嘉岳能源科技开发有限公司 | Fischer-Tropsch synthesis fixed bed reactor thermal control system |
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Granted publication date: 20140319 Termination date: 20190912 |
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| CF01 | Termination of patent right due to non-payment of annual fee |