CN103585933B - A kind of corrugated plate dst samming hydrogenation reactor - Google Patents
A kind of corrugated plate dst samming hydrogenation reactor Download PDFInfo
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- CN103585933B CN103585933B CN201310604127.XA CN201310604127A CN103585933B CN 103585933 B CN103585933 B CN 103585933B CN 201310604127 A CN201310604127 A CN 201310604127A CN 103585933 B CN103585933 B CN 103585933B
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Abstract
A kind of corrugated plate dst samming hydrogenation reactor, is characterized in that comprising upper header endless tube (5), beds (6), corrugated plating (7), lower entrances (8), lower collecting box endless tube (9), cylindrical shell (14) and upper outlet (16).This corrugated plate dst samming hydrogenation reactor is broken through the consistent multistage insulation cold shock used in the past and is moved heat structure, adopts corrugated plating heat transfer structure, is more conducive to heat transfer, is conducive to gas-liquid solid phase mixing, reaction uniform high-efficiency is carried out.Change traditional reactor adiabatic temperature rise high (Δ t=50 ~ 200 DEG C), the unmanageable shortcoming of reaction temperature, the temperature of whole bed is regulated by the temperature of cold flow system makes in corrugated plating, pressure and flow, can effectively control within Δ t=50 DEG C, temperature regulates steadily simple, stops the overheating problem of reaction bed completely.
Description
Technical field
The present invention relates to hydrogenation reactor technical field, especially a kind of corrugated plate dst samming hydrogenation reactor.
Background technology
Tradition hydrogenation reactor mainly contains fixed bed, thermopnore, fluid bed three major types, what wherein fixed bed reactors adopted is maximum, as shown in Figure 1, it is actually the adiabatic reactor be made up of multiple beds, its a large amount of reaction heat is introduced Quench by cooling medium (gas or liquid) from interlayer and is cooled, while removing a large amount of reaction heat, each bed temperature is controlled in certain temperature rise (as 50 ~ 100 DEG C) scope.The shortcoming of this kind of reactor is: the temperature rise of (1) beds can not be strict controlled in the suitableeest scope, easily makes catalyst burning affect its life-span, or not at best warm area, affects quality and the output of product; (2) reaction heat is by the direct Quench of cold medium added, and therefore its reaction heat can not fully reclaim.
Also patent is had to propose employing catalyst as shown in Figure 2 at tube side in the recent period, water is in the shell-and-tube water-cooled reactor of shell side, solve above-mentioned hydrogenation reactor Problems existing, but its shortcoming is: (1) apparatus with catalyst inside reaction tube quantity is many, the gas phase of hydrogenation reactor and even in liquid phase is made to enter every root pipe difficult, thus the efficiency of impact reaction; (2) because tube side and uneven shell-side temperature differ (especially under strong exothermic conditions), solve its thermal stress, be provided with expansion joint at shell side, this not only improves equipment manufacturing cost, increases insecurity, nor is beneficial to the maximization of equipment.
Because reaction tube is smooth tube wall, will inevitably there is certain fluid " wall short-circuiting effect ", also namely affect fluid and the abundant catalytic chance of catalyst, this also just must affect the efficiency of catalyst reaction.
Summary of the invention
The object of the present invention is to provide a kind of corrugated plate dst samming hydrogenation reactor, to overcome above-mentioned defect, reach and improve the effect such as catalyst life, raising reaction efficiency.
Technical scheme of the present invention is:
A kind of corrugated plate dst samming hydrogenation reactor, comprise upper header endless tube 5, beds 6, corrugated plating 7, lower entrances 8, lower collecting box endless tube 9, cylindrical shell 14 and upper outlet 16, described beds 6 is arranged in cylindrical shell 14, upper header endless tube 5 and lower collecting box endless tube 9 are arranged on the upper and lower of cylindrical shell 14 respectively, cooling medium interlayer by being made up of some corrugated platings 7 between upper header endless tube 5 and lower collecting box endless tube 9 is communicated with, the cooling medium interlayer that corrugated plating 7 is formed is built with cooling medium, corrugated plating 7 is placed in beds 6, upper header endless tube 5 is connected with upper outlet 16 and lower entrances 8 respectively with lower collecting box endless tube 9.
Described cylindrical shell 14 top is provided with upper entrance 1, is provided with disperser 2 below upper entrance 1, is provided with distribution cap 3 and gas-liquid distribution grid 4 below disperser 2.
The described cooling medium interlayer be made up of some corrugated platings 7 to be communicated with lower collecting box endless tube 9 respectively by some short tubes 15 and upper header endless tube 5 and to gather.
Being provided with set cover 12 in bottom bottom described cylindrical shell 14, is outlet 10 below bottom set cover 12.
Be provided with catalyst self-unloading hole 11 bottom described cylindrical shell 14, cylindrical shell 14 top is provided with manhole 17.
It is inner that described corrugated plating 7 is arranged on cylindrical shell 14 by support 13.
The invention has the beneficial effects as follows:
1, corrugated plate dst samming hydrogenation reactor of the present invention is broken through the consistent multistage insulation reaction structure that uses and intersegmental cold shock in the past and is moved heat structure, change traditional reactor adiabatic temperature rise high (Δ t=50 ~ 200 DEG C), the unmanageable shortcoming of reaction temperature, adopt corrugated plate dst samming hydrogenation reactor of the present invention, the temperature of whole bed is regulated by the temperature of cold flow system makes in corrugated plating, pressure and flow, can effectively control within Δ t=50 DEG C, temperature regulates steadily simple, stops the overheating problem of reaction bed completely.
2, corrugated plate dst samming hydrogenation reactor of the present invention adopts corrugated plating as cooling unit (catalyst is loaded between plate), and its advantage is:
(1) corrugated plating is due to the concavo-convex waveform on its surface, add fluid at plate surface and the turbulent perturbation of catalyst body, thus comparatively general closed planar heat transfer improves heat transfer coefficient 15 ~ 30%, also namely enhance 15 ~ 30% move heat energy power.
(2) concavo-convex due to corrugated plating face, fluid is constantly expanded and reduces, the direction of continuous alter, thus decrease " the wall short-circuiting effect " of fluid, add contact and the disturbance of fluid and catalyst, improve the efficiency of reaction and the utilization rate of catalyst, this advantage is particularly favourable for gas-solid-liquid three-phase hydrogenation reaction.
(3) shared by corrugated plating, volume is little, the reactor be made up of it increases by 10 ~ 20% than the loaded catalyst of other tubular reactors, and sheet material price is low than tubing price, therefore, after multiple favorable factor superposition, the cost of corrugated plate dst samming hydrogenation reactor of the present invention is low by 20 ~ 30% than the cost of other same energy yielding reaction devices.
3, adopt reactor head distribution grid 13 and distribution cap 14, effectively controlling gas phase and liquid phase well can be distributed to whole beds equably, makes whole catalyst evenly effectively carry out hydrogenation reaction.
4, the shortcoming that a large amount of waste heat of reactor is in the past difficult to utilize and reclaim broken through by corrugated plate dst samming hydrogenation reactor of the present invention, corrugated plate dst samming hydrogenation reactor of the present invention can reclaim reaction heat and directly pay product medium-pressure or high pressure steam, pay producing steam amount according to reaction heat size, general at 0.5 ~ 5.0 ton of steam/ton product, substantially increase the economic benefit of operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of fixed bed reactors in background technology.
Fig. 2 is the structural representation of shell-and-tube water-cooled reactor in background technology.
Fig. 3 is the structural representation of corrugated plate dst samming hydrogenation reactor of the present invention.
In Fig. 3: set cover, 13 supports, 14 cylindrical shells, 15 short tubes, 16 upper outlet, 17 manholes bottom 1 upper entrance, 2 dispersers, 3 distribution caps, 4 gas-liquid distribution grids, 5 upper header endless tubes, 6 beds, 7 corrugated platings, 8 lower entrances, 9 lower collecting box endless tubes, 10 outlets, 11 catalyst self-unloading holes, 12.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
As Fig. 3, a kind of corrugated plate dst samming hydrogenation reactor, comprise upper header endless tube 5, beds 6, corrugated plating 7, lower entrances 8, lower collecting box endless tube 9, cylindrical shell 14 and upper outlet 16, described beds 6 is arranged in cylindrical shell 14, upper header endless tube 5 and lower collecting box endless tube 9 are arranged on the upper and lower of cylindrical shell 14 respectively, cooling medium interlayer by being made up of some corrugated platings 7 between upper header endless tube 5 and lower collecting box endless tube 9 is communicated with, the cooling medium interlayer that corrugated plating 7 is formed is built with cooling medium, corrugated plating 7 is placed in beds 6, upper header endless tube 5 is connected with upper outlet 16 and lower entrances 8 respectively with lower collecting box endless tube 9.
Cylindrical shell 14 top is provided with upper entrance 1, is provided with disperser 2 below upper entrance 1, is provided with distribution cap 3 and gas-liquid distribution grid 4 below disperser 2.
The cooling medium interlayer be made up of some corrugated platings 7 to be communicated with lower collecting box endless tube 9 respectively by some short tubes 15 and upper header endless tube 5 and to gather.
Being provided with set cover 12 in bottom bottom cylindrical shell 14, is outlet 10 below bottom set cover 12.
Be provided with catalyst self-unloading hole 11 bottom cylindrical shell 14, cylindrical shell 14 top is provided with manhole 17.
It is inner that corrugated plating 7 is arranged on cylindrical shell 14 by support 13.
Operation principle of the present invention and the course of work as follows:
As shown in Figure 3, corrugated plate dst samming hydrogenation reactor of the present invention, primarily of the cylindrical shell 14 of catalyst being housed and cooling medium (as water etc.) corrugated plating 7 being housed, and the parts such as gas-liquid distribution grid 4, distribution cap 3 are formed.Be connected with cooling agent (as water) in corrugated plating, be connected by short tube 15 with upper header endless tube 5 with lower collecting box endless tube 9, formed and move hot cooling system, this system is by support 13 load-bearing.Hydrogenation reaction material is entered by upper entrance 1, disperse through disperser 2, distribution grid 4 again through being arranged on cylindrical shell 14 and the distribution cap 3 be fixed thereon, be distributed in equably by fluid foods on whole beds 6 and carry out hydrogenation reaction from top to bottom, then reaction mass goes out reactor by bottom set cover 12 through outlet 10.Cooling fluid is then entered by lower entrances 8, removes drum from bottom to top through corrugated plating by upper outlet 16.On reactor top, end socket place is also provided with manhole 17, and bottom is provided with catalyst self-unloading hole 11.
The corrugated plate dst samming hydrogenation reactor scope of application of the present invention is in table 1.
Table 1: the corrugated plate dst samming hydrogenation reactor scope of application
| Reaction temperature | 100～550℃ |
| Pressure | 0.1Mpa～12.0Mpa； |
| Disposal ability | 0.5 ten thousand tons/year ~ 1,000,000 tons/year |
| Material | Hydrogen+gas gas-phase objects, ratio is any |
| Hydrogen+liquid phase thing, ratio is any |
Adopt the application example of corrugated plate dst samming hydrogenation reactor of the present invention as follows:
[application example 1]
2.5MPa, the 50% oxalate methanol solution of 180 DEG C and 3.0MPa, 250 DEG C of hydrogen (mol ratio of hydrogen and oxalate is 50) by the gas-liquid distributor of corrugated plate dst samming hydrogenation reactor, distribute cap, gas-liquid homogeneous media is made to carry out catalytic hydrogenation reaction by the tube side of reactor, obtain ethylene glycol (EG) product, catalytic hydrogenation reaction heat is taken away by the steam of this reactor shell side simultaneously.Uniform-temperature reactor tube side reaction temperature 180 ~ 250 DEG C, reaction pressure 2.0MPa; The saturated boiler water pressure of shell side 1.6 ~ 2.5MPa, temperature 205 ~ 225 DEG C, reactor mean temperature difference 25 DEG C, byproduct steam amount 4.5t/tEG, and oxalate conversion ratio more than 97.5%, ethylene glycol yield reaches more than 95%, thus shows that corrugated plate dst samming hydrogenation reactor distribution performance of the present invention is good, heat-transfer capability is strong.
[application example 2]
2.5MPa, the 50% oxalate methanol solution of 180 DEG C and 3.0MPa, 225 DEG C of hydrogen (mol ratio of hydrogen and oxalate is 100) by the gas-liquid distributor of samming hydrogenation reactor, distribute cap, gas-liquid homogeneous media is made to carry out catalytic hydrogenation reaction by the tube side of reactor, obtain ethylene glycol (EG) product, catalytic hydrogenation reaction heat is taken away by the steam of this reactor shell side simultaneously.Uniform-temperature reactor tube side reaction temperature 180 ~ 240 DEG C, reaction pressure 2.0MPa; The saturated boiler water pressure of shell side 1.6 ~ 2.5MPa, temperature 205 ~ 225 DEG C, reactor mean temperature difference 20 DEG C, byproduct steam amount 4.0t/tEG, and oxalate conversion ratio more than 98.5%, ethylene glycol yield reaches more than 96%, thus shows that corrugated plate dst samming hydrogenation reactor distribution performance of the present invention is good, heat-transfer capability is strong.
[application example 3]
4.5MPa, the 60% oxalate methanol solution of 160 DEG C and 5.0MPa, 250 DEG C of hydrogen (mol ratio of hydrogen and oxalate is 50) by the gas-liquid distributor of samming hydrogenation reactor, distribute cap, gas-liquid homogeneous media is made to carry out catalytic hydrogenation reaction by the tube side of reactor, obtain ethylene glycol (EG) product, catalytic hydrogenation reaction heat is taken away by the steam of this reactor shell side simultaneously.Uniform-temperature reactor tube side reaction temperature 180 ~ 240 DEG C, reaction pressure 4.0MPa; The saturated boiler water pressure of shell side 1.6 ~ 2.0MPa, temperature 205 ~ 215 DEG C, reactor mean temperature difference 25 DEG C, byproduct steam amount 4.2t/tEG, and oxalate conversion ratio more than 98.0%, ethylene glycol yield reaches more than 95%, thus shows that corrugated plate dst samming hydrogenation reactor distribution performance of the present invention is good, heat-transfer capability is strong.
[application example 4]
4.5MPa, the 60% oxalate methanol solution of 160 DEG C and 5.0MPa, 225 DEG C of hydrogen (mol ratio of hydrogen and oxalate is 100) by the gas-liquid distributor of samming hydrogenation reactor, distribute cap, gas-liquid homogeneous media is made to carry out catalytic hydrogenation reaction by the tube side of reactor, obtain ethylene glycol (EG) product, catalytic hydrogenation reaction heat is taken away by the steam of this reactor shell side simultaneously.Uniform-temperature reactor tube side reaction temperature 180 ~ 240 DEG C, reaction pressure 4.0MPa; The saturated boiler water pressure of shell side 1.6 ~ 2.0MPa, temperature 205 ~ 215 DEG C, reactor mean temperature difference 20 DEG C, byproduct steam amount 4.0t/tEG, and oxalate conversion ratio more than 98.5%, ethylene glycol yield reaches more than 95.5%, thus shows that corrugated plate dst samming hydrogenation reactor distribution performance of the present invention is good, heat-transfer capability is strong.
Embodiment recited above is only be described the preferred embodiment of the present invention; not the spirit and scope of the present invention are limited; do not departing under design concept prerequisite of the present invention; the various modification that in this area, common engineers and technicians make technical scheme of the present invention and improvement; all should fall into protection scope of the present invention, the technology contents of request protection of the present invention is all recorded in detail in the claims.
Claims (1)
1. a corrugated plate dst samming hydrogenation reactor, it is characterized in that comprising upper header endless tube (5), beds (6), corrugated plating (7), lower entrances (8), lower collecting box endless tube (9), cylindrical shell (14) and upper outlet (16), described beds (6) is arranged in cylindrical shell (14), upper header endless tube (5) and lower collecting box endless tube (9) are arranged on the upper and lower of cylindrical shell (14) respectively, cooling medium interlayer by being made up of some corrugated platings (7) between upper header endless tube (5) and lower collecting box endless tube (9) is communicated with, corrugated plating (7) is placed in beds (6), upper header endless tube (5) is connected with upper outlet (16) and lower entrances (8) respectively with lower collecting box endless tube (9), described cylindrical shell (14) top is provided with upper entrance (1), and upper entrance (1) below is provided with disperser (2), and disperser (2) below is provided with distribution cap (3) and gas-liquid distribution grid (4), the described cooling medium interlayer be made up of some corrugated platings (7) to be communicated with lower collecting box endless tube (9) respectively by some short tubes (15) and upper header endless tube (5) and to gather, described cylindrical shell (14) bottom is provided with bottom set cover (12), and below, bottom set cover (12) is outlet (10), described cylindrical shell (14) bottom is provided with catalyst self-unloading hole (11), and cylindrical shell (14) top is provided with manhole (17), it is inner that described corrugated plating (7) is arranged on cylindrical shell (14) by support (13).
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| CN201310604127.XA CN103585933B (en) | 2013-11-25 | 2013-11-25 | A kind of corrugated plate dst samming hydrogenation reactor |
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| CN103585933B true CN103585933B (en) | 2016-03-09 |
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| CN104841339A (en) * | 2015-04-16 | 2015-08-19 | 中国五环工程有限公司 | Novel hydrogenation reactor for synthesis gas-to-ethylene glycol process |
| CN105032305B (en) * | 2015-08-27 | 2017-10-20 | 德艾柯工程技术（上海）有限公司 | A kind of new radial direction plate-type reactor |
| DE102015122129A1 (en) * | 2015-12-17 | 2017-06-22 | L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Reactor for carrying out exo- or endothermic reactions |
| CN114307908B (en) * | 2022-01-19 | 2023-03-28 | 华中科技大学 | Method for synthesizing C8+ aviation fuel oil by catalytic hydrogenation of carbon dioxide |
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| CN101993349B (en) * | 2009-08-31 | 2013-01-23 | 中国石油化工股份有限公司 | Method for producing glycol by using oxalic ester |
| CN203648501U (en) * | 2013-11-25 | 2014-06-18 | 南京国昌化工科技有限公司 | Corrugated plate type uniform-temperature hydrogenation reactor |
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Address after: 211500 No. 186, Shidai Avenue, Liuhe Economic Development Zone, Nanjing City, Jiangsu Province Patentee after: Nanjing Goodchina Chemical Technologies Co., Ltd. Address before: 210044, No. 355, Ning six road, Liuhe Industrial Development Zone, Nanjing District, Jiangsu, Nanjing Patentee before: Nanjing Goodchina Chemical Technologies Co., Ltd. |
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