CN103357355B - High-temperature reactor and chemical engineering system using the same - Google Patents
High-temperature reactor and chemical engineering system using the same Download PDFInfo
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- CN103357355B CN103357355B CN201310339691.3A CN201310339691A CN103357355B CN 103357355 B CN103357355 B CN 103357355B CN 201310339691 A CN201310339691 A CN 201310339691A CN 103357355 B CN103357355 B CN 103357355B
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- 238000003889 chemical engineering Methods 0.000 title abstract 2
- 238000006243 chemical reaction Methods 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 239000000126 substance Substances 0.000 claims description 10
- 230000003020 moisturizing effect Effects 0.000 claims description 8
- 238000007669 thermal treatment Methods 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 23
- 238000004519 manufacturing process Methods 0.000 abstract description 21
- 230000008569 process Effects 0.000 abstract description 19
- 238000001816 cooling Methods 0.000 abstract description 13
- 239000003054 catalyst Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 103
- 239000000047 product Substances 0.000 description 37
- 239000000498 cooling water Substances 0.000 description 27
- 230000008901 benefit Effects 0.000 description 11
- 238000012545 processing Methods 0.000 description 9
- 230000007423 decrease Effects 0.000 description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 239000003595 mist Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000019771 cognition Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Abstract
The invention discloses a high-temperature reactor and a chemical engineering system using the same. The reactor comprises a housing (1) and an inner cylinder (2), wherein the inner cylinder (2) is disposed inside the housing (1); a gap gas-flow channel (3) is disposed between the outer wall of the inner cylinder (2) and the inner wall of the housing (1); a catalyst bed (5) and heat exchange tubes (6) are disposed in the inner cylinder (2) from top to bottom in sequence; the gas inlet (11) of the housing is communicated with the gas inlet (21) of the inner cylinder through the gap gas-flow channel (3); and the gas outlet (12) of the housing is communicated with the gas outlet (22) of the inner cylinder. According to the reactor and the system, parts used for a strong exothermic reaction and parts used for cooling are integrated in the inner cylinder (2), thereby reducing the size of the high-temperature reactor, reducing materials used for equipment, decreasing system resistance drop, achieving energy conservation and greatly lowering temperature of materials discharged from the high-temperature reactor, thus creating favorable conditions for model selecting, machining and manufacturing of equipment used in subsequent processes.
Description
Technical field
The present invention relates to chemical technology field, particularly relate to a kind of high-temperature reactor and apply the chemical system of this high-temperature reactor.
Background technology
In chemical field, a lot of chemical reaction is the strong exothermal reaction (strong exothermal reaction typically refers to the reaction that enthalpy is greater than 200kJ/mol) needing to carry out in high temperature environments, such as: methanation reaction.Because these strong exothermal reactions have usually, reaction is violent, thermal discharge is large, reaction temperature high, and therefore in prior art, these strong exothermal reactions carry out mostly in the high-temperature reactor with refractory liner.But at least there is following shortcoming in high-temperature reactor of the prior art:
(1) in order to avoid strong exothermal reaction damage high-temperature reactor, the refractory liner of existing high-temperature reactor has sizable thickness usually, and this just makes the overall volume of existing high-temperature reactor very large, is unfavorable for installing, dismantling.
(2) after standing equipment vibrations and/or high temperature variation, easily there is be full of cracks in the refractory liner of existing high-temperature reactor, come off equivalent damage; Once damage appears in refractory liner, strong exothermal reaction directly will damage the shell of high-temperature reactor, and then may cause security incident.
(3) because the temperature of high-temperature reactor when carrying out strong exothermal reaction is too high, therefore production equipment in the following process flow process coordinating high-temperature reactor to use (such as: the outlet conduit of high-temperature reactor, for reclaiming the waste heat boiler etc. of heat) also needs to have great resistance to elevated temperatures, this brings a lot of difficulty just to the type selecting of production equipment in following process flow process and processing and manufacturing, too increases investment and operating cost simultaneously.
Summary of the invention
In order to solve above-mentioned the problems of the prior art, the invention provides a kind of high-temperature reactor and apply the chemical system of this high-temperature reactor, not only reduce the volume of high-temperature reactor, and the temperature of high-temperature reactor institute ejected matter can be made to decline to a great extent, thus create advantage for the type selecting of production equipment in follow-up flow process and processing and manufacturing.
The object of the invention is to be achieved through the following technical solutions:
A kind of high-temperature reactor, comprising: shell 1 and inner core 2; Inner core 2 is located at the inside of shell 1, and is provided with gap flow passage 3 between the inwall of the outer wall of inner core 2 and shell 1;
The inside of inner core 2 is provided with beds 5 and heat exchanger tube 6 from top to bottom; Inner core 2 is provided with the inner core air inlet 21 and inner core gas outlet 22 that are communicated with the inside of inner core 2; The place height of inner core air inlet 21 is higher than the place height of the bottom of beds 5; The place height of inner core gas outlet 22 is lower than the place height of the bottom of heat exchanger tube 6;
The bottom of shell 1 is provided with housing inlet 11 and shell gas outlet 12; Housing inlet 11 is communicated with inner core air inlet 21 by gap flow passage 3; Shell gas outlet 12 is communicated with inner core gas outlet 22;
Unstrpped gas enters the inside of inner core 2 after flowing through housing inlet 11, gap flow passage 3 and inner core air inlet 21 successively, and the gas product under the catalytic action of beds 5 after reaction of formation; Reacted gas product flows through heat exchanger tube 6 and carries out exchange heat, and discharges through behind inner core gas outlet 22 and shell gas outlet 12 successively.
Preferably, the inside of inner core 2 is provided with end socket 4; The interior separation of inner core 2 is inner core upper chamber 23 and inner core lower cavity 24 by this end socket 4, and this end socket 4 is provided with the air communicating pipe 41 inner core upper chamber 23 be communicated with inner core lower cavity 24;
Beds 5 is located in inner core upper chamber 23; Heat exchanger tube 6 is located in inner core lower cavity 24.
Preferably, the sidewall of shell 1 is provided with heat exchanger tube water inlet 61; This heat exchanger tube water inlet 61 successively through shell 1 and inner core 2, and is communicated with the heat exchanger tube 6 be located in inner core lower cavity 24;
The top of shell 1 is provided with heat exchanger tube delivery port 62; Described end socket 4 is water leg structure; The heat exchanger tube 6 be located in inner core lower cavity 24 is communicated with end socket 4, and is communicated with heat exchanger tube delivery port 62 by end socket 4.
Preferably, the inside of shell 1 is provided with support member 13; Inner core 2 is arranged at the inside of shell 1 by support member 13.
Preferably, also comprise: temperature measuring equipment 7; This temperature measuring equipment 7 is extend into the inside of inner core 2 by the top of shell 1, to measure the reaction temperature of this high-temperature reactor.
Preferably, described inner core air inlet 21 comprises multiple air admission hole; These air admission holes are distributed in the top of inner core 2, and/or, on the sidewall of the inner core 2 corresponding with inner core upper chamber 23.
Preferably, described air communicating pipe 41 is provided with multiple passage; On the two ends that these passages are distributed in air communicating pipe 41 and sidewall, and at least one passage is positioned at inner core upper chamber 23, at least one passage is positioned at inner core lower cavity 24;
Place, the top height of this air communicating pipe 41 higher than place, the bottom height of beds 5, and lower than place, the top height of beds 5; The difference in height of 10mm is at least there is between the top of this air communicating pipe 41 and the top of beds 5;
Place, the bottom height of this air communicating pipe 41 is higher than place, the top height of heat exchanger tube 6.
Preferably, also comprise: calandria 8; This calandria 8 is extend into the thermal treatment zone 9 being located at inner core 2 inside by the top of shell 1; This thermal treatment zone 9 is positioned at the top of beds 5;
The top of inner core 2 is located at by described inner core air inlet 21.
Preferably, described air communicating pipe 41 is provided with at least two passages, and at least one passage is positioned at inner core upper chamber 23, at least one passage is positioned at inner core lower cavity 24;
The length that the top of this air communicating pipe 41 extend into beds 5 is at most 300mm;
Place, the bottom height of this air communicating pipe 41 is higher than place, the top height of heat exchanger tube 6.
A kind of chemical system, comprising: the high-temperature reactor A described in technique scheme, drum B and circulating pump C;
Described high-temperature reactor A comprises housing inlet 11, shell gas outlet 12, heat exchanger tube water inlet 61 and heat exchanger tube delivery port 62; Unstripped gas 101 flows into this high-temperature reactor A by housing inlet 11, and reacted gas product 102 is flowed out by this high-temperature reactor A by shell gas outlet 12;
The heat exchanger tube water inlet 61 of this high-temperature reactor A is communicated with the delivery port of drum B with the delivery port of circulating pump C respectively; The heat exchanger tube delivery port 62 of this high-temperature reactor A is communicated with the water inlet of drum B; The water inlet of circulating pump C is communicated with the delivery port of drum B;
Moisturizing water inlet is provided with between the delivery port of heat exchanger tube water inlet 61 and drum B, and/or, be provided with moisturizing water inlet between the water inlet of circulating pump C and the delivery port of drum B.
As seen from the above technical solution provided by the invention, beds 5 and heat exchanger tube 6 have all been arranged on the inside of inner core 2 by the high-temperature reactor that the embodiment of the present invention provides, and do not use flange, pad, the parts such as securing member, can also make the temperature of inner core air inlet 21 and inner core gas outlet 22 all between 100 ~ 300 DEG C, therefore this high-temperature reactor can reduce the volume of high-temperature reactor, and the temperature of high-temperature reactor institute ejected matter can be made to decline to a great extent, thus create advantage for the product type selection of production equipment in following process flow process and processing and manufacturing.Meanwhile, this high-temperature reactor reduces the temperature of the outer wall of inner core 2 by air cooling, and make shell 1 not by high temperature, therefore shell 1 is without the need to using refractory material, has saved cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation one of the high-temperature reactor that Fig. 1 provides for the embodiment of the present invention;
The structural representation two of the high-temperature reactor that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the chemical system of this high-temperature reactor of application that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection scope of the present invention.
First it should be noted that, described in present specification " on ", D score, " top ", the word in the expression such as " end " orientation, be only in order to the clear each parts describing out the embodiment of the present invention between relative position relation, based on a kind of expression form of the embodiment of the present invention when adopting the placement orientation shown in accompanying drawing 1 and accompanying drawing 2, it is not the absolute positional relation of all embodiments of the present invention, therefore this is not construed as limiting the invention, one of ordinary skill in the art will appreciate that, when the placement orientation of the embodiment of the present invention changes, corresponding absolute positional relation also will change, but this still belongs to protection scope of the present invention.Term "and/or" described in present specification refers to that any or all that comprise one or more project of listing be associated may combine.High-temperature reactor provided by the present invention is mainly used in carrying out strong exothermal reaction between gas, such as: the methanation reaction that may be used for temperatures as high 750 DEG C.
Below the high-temperature reactor that the embodiment of the present invention provides is described in detail.
As depicted in figs. 1 and 2, a kind of high-temperature reactor, its concrete structure can comprise: shell 1 and inner core 2; Inner core 2 is located at the inside of shell 1, and is provided with gap flow passage 3 between the inwall of the outer wall of inner core 2 and shell 1;
The inside of inner core 2 is provided with beds 5 and heat exchanger tube 6 from top to bottom; Inner core 2 is provided with the inner core air inlet 21 and inner core gas outlet 22 that are communicated with the inside of inner core 2; The place height of inner core air inlet 21 is higher than the place height of the bottom of beds 5; The place height of inner core gas outlet 22 is lower than the place height of the bottom of heat exchanger tube 6;
The bottom of shell 1 is provided with housing inlet 11 and shell gas outlet 12; Housing inlet 11 is communicated with inner core air inlet 21 by gap flow passage 3; Shell gas outlet 12 is communicated with inner core gas outlet 22.
Particularly, the specific works principle of this high-temperature reactor is as follows:
(1) gas operation logic: (unstrpped gas is a kind of mist to unstrpped gas, wherein at least contain all gas carried out required for same strong exothermal reaction, such as: in methanation reaction, hydrogen and carbon monoxide can be at least comprised in this unstrpped gas, or, in this unstrpped gas, can at least comprise hydrogen and carbon dioxide) and the inside of shell 1 is entered into by housing inlet 11; Because housing inlet 11 is communicated with the bottom of gap flow passage 3, the unstrpped gas therefore entering the inside of shell 1 upwards can only be flowed by gap flow passage 3; When unstrpped gas flows to the inner core air inlet 21 be communicated with the top of gap flow passage 3, unstripped gas knows from experience the inside being flow into inner core 2 by inner core air inlet 21; Because the place height of inner core air inlet 21 is higher than the place height of the bottom of beds 5, therefore after unstrpped gas flows into the inside of inner core 2, can contact with beds 5, and strong exothermal reaction can be there is under the catalytic action of beds 5, thus generate the very high reacted gas product of temperature; Reacted gas product can flow downward gradually in the inside of inner core 2, and flow through the outside of heat exchanger tube 6, because heat exchanger tube 6 inside is the cooling water that temperature is low, therefore when reacted gas product flows through heat exchanger tube 6, reacted gas product can with the cooling water generation exchange heat of heat exchanger tube 6 inside, thus reacted gas product is significantly lowered the temperature; Reacted gas product successively through inner core gas outlet 22 and shell gas outlet 12, and can be discharged to the outside of this high-temperature reactor after cooling, namely completes the whole service process of gas in this high-temperature reactor.
(2) water-cooled principle: the inside of heat exchanger tube 6 is provided with the low cooling water of temperature, when reacted gas product flows through heat exchanger tube 6 outside, cooling water can carry out exchange heat with reacted gas product, thus the temperature (or small part cooling water is vaporized) of cooling water can be raised, and reduce the temperature (i.e. water-cooled) of reacted gas product; In order to keep, to reacted gas product, there is good cooling effect, the low cooling water of new temperature can be filled into the inside of heat exchanger tube 6, and the cooling water after intensification can be discharged from the inside of heat exchanger tube 6; In actual applications, when using high-temperature reactor provided by the present invention to carry out strong exothermal reaction, the discharge of cooling water and Renewal process can carry out in real time, thus can ensure that this heat exchanger tube 6 has good cooling effect to reacted gas product, the temperature of reacted gas product can be made to decline to a great extent, for the type selecting of production equipment in follow-up flow process and processing and manufacturing create advantage.
(3) air cooling principle: the position due to unstrpped gas generation strong exothermal reaction is the beds 5 being positioned at inner core 2 inside, therefore downward from beds 5 inner core 2, the temperature of its inside is all higher than the outside of inner core 2; Again because the outside of inner core 2 is gap flow passages 3, and in gap flow passage 3 flowing be just entered the lower unstrpped gas of the temperature of shell 1 inside, therefore this part unstrpped gas can carry out exchange heat with inner core 2, thus the temperature of this part unstrpped gas is raised, and the temperature of the outer wall of inner core 2 is made to decline (i.e. air cooling); The temperature of this part unstrpped gas is raised, can the catalyst in beds 5 be made when unstrpped gas runs into beds 5 to reach light-off temperature, to ensure normally carrying out of strong exothermal reaction; The temperature of the outer wall of inner core 2 is declined, not only can reduce the heatproof requirement of inner core 2 when selection, and the service life of inner core 2 can be extended, shell 1 can also be made not by high temperature simultaneously, therefore make shell 1 without the need to using refractory material, having saved cost.
Wherein, in this high-temperature reactor, the specific implementation of each parts can comprise:
(2) inside of inner core 2 is provided with end socket 4; The interior separation of inner core 2 is inner core upper chamber 23 and inner core lower cavity 24 by this end socket 4, and beds 5 is located in inner core upper chamber 23, and heat exchanger tube 6 is located in inner core lower cavity 24; This end socket 4 can be played a supporting role to the beds 5 in inner core upper chamber 23; In actual applications, this end socket 4 preferably adopts water leg structure, and namely can flow cooling water (such as: the mode be communicated with heat exchanger tube 6 can be adopted to realize) in the inside of end socket 4, thus end socket 4 can be made to avoid being subject to the temperatures involved of strong exothermal reaction.This end socket 4 can be provided with the air communicating pipe 41 inner core upper chamber 23 be communicated with inner core lower cavity 24, be flow in inner core lower cavity 24 by air communicating pipe 41 to enable reacted gas product in inner core upper chamber 23.
(3) sidewall of shell 1 can be provided with heat exchanger tube water inlet 61; This heat exchanger tube water inlet 61 can pass shell 1 and inner core 2 successively, and is communicated with the heat exchanger tube 6 be located in inner core lower cavity 24; The top of shell 1 can be provided with heat exchanger tube delivery port 62; The heat exchanger tube 6 be located in inner core lower cavity 24 can be communicated with end socket 4, and be communicated with heat exchanger tube delivery port 62 by end socket 4.The cooling water that temperature is low can flow into heat exchanger tube 6 from heat exchanger tube water inlet 61, and the cooling water that temperature raises rear (or after components vaporize) can be discharged by heat exchanger tube delivery port 62; In order to realize the Natural Circulation of cooling water, and driving force of heat transfer is maximized, the cooling water flowing through heat exchanger tube 6 in this high-temperature reactor preferably adopts full reflux type from bottom to top.
(4) inside of shell 1 is provided with support member 13; Inner core 2 is arranged at the inside of shell 1 by support member 13.
(5) this high-temperature reactor can also comprise: temperature measuring equipment 7; This temperature measuring equipment 7 is extend into the inside of inner core 2 by the top of shell 1, to measure the reaction temperature of this high-temperature reactor.
Visible, this high-temperature reactor at least possesses following advantage:
(1) beds 5 and heat exchanger tube 6 have all been arranged on the inside of inner core 2 by this high-temperature reactor, and do not use the parts such as flange, pad, securing member, therefore not only make inner core 2 by high temperature, and reduce the volume of high-temperature reactor; Meanwhile, this high-temperature reactor reduces the temperature of the outer wall of inner core 2 by air cooling, and make shell 1 not by high temperature, therefore shell 1 is without the need to using refractory material, has saved cost.
(2) beds 5 and heat exchanger tube 6 have all been arranged on the inside of inner core 2 by this high-temperature reactor, thus make the temperature of inner core air inlet 21 and inner core gas outlet 22 all between 100 ~ 300 DEG C, therefore this high-temperature reactor can make the temperature of high-temperature reactor institute ejected matter decline to a great extent, thus creates advantage for the type selecting of production equipment in follow-up flow process and processing and manufacturing.
(3) this high-temperature reactor is by the cooling water that flows in the heat exchanger tube 6 that pipe pipe is connected, achieves naturally cooling reacted gas product, makes the temperature difference of reacted gas product before and after exchange heat can reach 500 DEG C; This heat exchanger tube 6 have employed the connected mode that pipe pipe is connected, thus heat exchanger tube is expanded naturally, eliminates thermal stress.
Visible, the parts being used for strong exothermal reaction and the parts that are used for cooling all have been integrated into the inside of inner core 2 by the embodiment of the present invention, not only reduce the volume of high-temperature reactor, and the temperature of high-temperature reactor institute ejected matter can be made to decline to a great extent, thus create advantage for the type selecting of production equipment in follow-up flow process and processing and manufacturing.
For making goal of the invention of the present invention, technical scheme and beneficial effect clearly, below by example, and in conjunction with respective drawings, the embodiment of the present invention is described in further detail.
Embodiment one
As shown in Figure 2, a kind of high-temperature reactor, compared with technique scheme, this embodiment one more specifically have employed following technical scheme:
(1) the inner core air inlet 21 described in comprises multiple air admission hole; These air admission holes are distributed in the top of inner core 2, and/or, on the sidewall of the inner core 2 corresponding with inner core upper chamber 23; In actual applications, the top of inner core 2 and the sidewall of the inner core 2 corresponding with inner core upper chamber 23 are preferably equipped with air admission hole, thus enable unstrpped gas from axially entering into the inside of inner core 2 with radial multiple positions, and all can contact with beds 5.
(2) air communicating pipe 41 described in is provided with multiple passage; On the two ends that these passages are distributed in air communicating pipe 41 and sidewall, and at least one passage is positioned at inner core upper chamber 23, at least one passage is positioned at inner core lower cavity 24; In actual applications, this air communicating pipe 41 is preferably one, and is located at the centre of end socket 4, and the two ends of air communicating pipe 41 and sidewall all distribute multiple passage, thus enable reacted gas product enter into air communicating pipe 41 equably.
Place, the top height of this air communicating pipe 41 higher than place, the bottom height of beds 5, and lower than place, the top height of beds 5; The difference in height of 10mm is at least there is between the top of this air communicating pipe 41 and the top of beds 5, this can not only be avoided unstripped gas unreacted just directly to enter in air communicating pipe 41, and reacted gas product can be made to enter into air communicating pipe 41 equably, thus reduce the resistance drop of this high-temperature reactor, being easy to maximize uses.Place, the bottom height of this air communicating pipe 41 can lower than place, the top height of heat exchanger tube 6, but preferably higher than place, the top height of heat exchanger tube 6, in actual applications, the length that the bottom of this air communicating pipe 41 extend into inner core lower cavity 24 is preferably as far as possible short, thus can ensure that reacted gas product fully can carry out exchange heat with heat exchanger tube 6.
Particularly, carry out methanation reaction according to the high-temperature reactor in the present embodiment, then its concrete flow process is as follows:
By 150 ~ 200 DEG C, the unstrpped gas of 1 ~ 10MPa (this unstrpped gas is the mist at least comprising hydrogen and carbon dioxide, or, at least comprise the mist of hydrogen and carbon monoxide) is input to the inside of shell 1 from housing inlet 11; This unstrpped gas is upwards flowed by gap flow passage 3, and by carrying out exchange heat with the outer wall of inner core 2, thus this unstrpped gas is heated up 10 ~ 50 DEG C; When unstrpped gas flows to when being located at the air admission hole at inner core 2 sidewall or inner core 2 top, unstripped gas know from experience by air admission hole from axially and radial multiple positions enter into the inside of inner core 2; The unstripped gas cognition entering the inside of inner core 2 contacts with beds 5, and under the catalytic action of beds 5, strong exothermal reaction occurs, the gas product (namely for methane) after reaction of formation, and the reaction temperature of this strong exothermal reaction can up to 750 DEG C; Reacted gas product enters into air communicating pipe 41 equably, and enters into inner core lower cavity 24 by air communicating pipe 41; The reacted gas product entering inner core lower cavity 24 can flow through the outside of heat exchanger tube 6, and carries out exchange heat with heat exchanger tube 6; After carrying out exchange heat with heat exchanger tube 6, greenhouse cooling to 180 ~ 300 DEG C of reacted gas product, then successively through inner core gas outlet 22 and shell gas outlet 12, and be discharged to the outside of this high-temperature reactor, namely complete the running of whole methanation reaction.
It should be noted that, because the high-temperature reactor in the embodiment of the present invention does not comprise heater, the catalyst therefore placed in beds 5 needs to adopt prior art to carry out pre-reduction treatment in advance.
Visible, the embodiment of the present invention not only reduces the volume of high-temperature reactor, and the temperature of high-temperature reactor institute ejected matter can be made to decline to a great extent, thus creates advantage for the type selecting of production equipment in follow-up flow process and processing and manufacturing.
Embodiment two
As shown in Figure 1, a kind of high-temperature reactor, compared with embodiment one, this embodiment two more specifically have employed technical schemes different as follows:
(1) top of inner core 2 is located at by inner core air inlet 21; In actual applications, the top of this inner core 2 is exactly preferably a large inner core air inlet 21 on the whole, thus calandria can be set on this high-temperature reactor, and make calandria extend in inner core air inlet 21, enter the temperature of the gas of beds 5 to promote, thus create advantage for the intensification of beds 5 and reduction.
(2) air communicating pipe 41 described in is provided with at least two passages, and at least one passage is positioned at inner core upper chamber 23, at least one passage is positioned at inner core lower cavity 24; In actual applications, this air communicating pipe 41 is preferably four, and is distributed on end socket 4, and every root air communicating pipe 41 preferably only has two passages, and be located at the two ends of air communicating pipe 41 respectively, this can make reacted gas product enter into air communicating pipe 41 equably.
The length that the top of this air communicating pipe 41 extend into beds 5 is at most 300mm; In actual applications, this air communicating pipe 41 is in the length of inner core upper chamber 23 should be as far as possible short, and this makes unstrpped gas need just can enter into air communicating pipe 41 through whole beds 5, thus enables the reaction of unstrpped gas more abundant.Place, the bottom height of this air communicating pipe 41 can lower than place, the top height of heat exchanger tube 6, but preferably higher than place, the top height of heat exchanger tube 6, in actual applications, the length that the bottom of this air communicating pipe 41 extend into inner core lower cavity 24 is preferably as far as possible short, thus can ensure that reacted gas product fully can carry out exchange heat with heat exchanger tube 6.
(3) this high-temperature reactor can also comprise: calandria 8; This calandria 8 is extend into the thermal treatment zone 9 being located at inner core 2 inside by the top of shell 1; This thermal treatment zone 9 is positioned at the top of beds 5; In actual applications, if the topside perspective of inner core 2 is a large inner core air inlet 21, so calandria 8 preferably extend into inner core air inlet less than 21, to heat the unstrpped gas entering inner core 2, and then the temperature promoted when unstrpped gas enters beds 5, thus create advantage for the intensification of beds 5 and reduction.
Particularly, carry out methanation reaction according to the high-temperature reactor in the present embodiment, then its concrete flow process is as follows:
By 150 ~ 200 DEG C, the unstrpped gas of 1 ~ 10MPa (this unstrpped gas is the mist at least comprising hydrogen and carbon dioxide, or, at least comprise the mist of hydrogen and carbon monoxide) is input to the inside of shell 1 from housing inlet 11; This unstrpped gas is upwards flowed by gap flow passage 3, and by carrying out exchange heat with the outer wall of inner core 2, thus this unstrpped gas is heated up 10 ~ 50 DEG C; When unstrpped gas flows to when being located at the inner core air inlet 21 at inner core 2 top, unstripped gas knows from experience the inside being entered into inner core 2 by inner core air inlet 21 from radial direction; The unstripped gas cognition entering the inside of inner core 2 contacts with beds 5, and under the catalytic action of beds 5, strong exothermal reaction occurs, and generates gas product (namely for methane); The temperature of the reacted gas product just generated can up to 750 DEG C; The reacted gas product of this high temperature enters into air communicating pipe 41 from radial direction, and enters into inner core lower cavity 24 by air communicating pipe 41; The reacted gas product entering inner core lower cavity 24 can flow through the outside of heat exchanger tube 6, and carries out exchange heat with heat exchanger tube 6; After carrying out exchange heat with heat exchanger tube 6, greenhouse cooling to 180 ~ 300 DEG C of reacted gas product, then successively through inner core gas outlet 22 and shell gas outlet 12, and be discharged to the outside of this high-temperature reactor, namely complete the running of whole methanation reaction.
It should be noted that, because the high-temperature reactor in the embodiment of the present invention can heat, therefore the catalyst placed in beds 5 can without pre-reduction treatment, also pre-reduction treatment can be through, meanwhile, the gas temperature entering beds 5 reaches 600 DEG C by the heating of calandria 8.
Visible, the embodiment of the present invention not only reduces the volume of high-temperature reactor, and the temperature of high-temperature reactor institute ejected matter can be made to decline to a great extent, thus creates advantage for the type selecting of production equipment in follow-up flow process and processing and manufacturing.
Except technique scheme, the embodiment of the present invention additionally provides a kind of chemical system, and as shown in Figure 3, its concrete structure can comprise: the high-temperature reactor A described in technique scheme, drum B and circulating pump C;
Described high-temperature reactor A comprises housing inlet 11, shell gas outlet 12, heat exchanger tube water inlet 61 and heat exchanger tube delivery port 62; Unstripped gas 101 flows into this high-temperature reactor A by housing inlet 11, and reacted gas product 102 is flowed out by this high-temperature reactor A by shell gas outlet 12;
The heat exchanger tube water inlet 61 of this high-temperature reactor A is communicated with the delivery port of drum B with the delivery port of circulating pump C respectively; The heat exchanger tube delivery port 62 of this high-temperature reactor A is communicated with the water inlet of drum B; The water inlet of circulating pump C is communicated with the delivery port of drum B;
Moisturizing water inlet is provided with between the delivery port of heat exchanger tube water inlet 61 and drum B, and/or, be provided with moisturizing water inlet between the water inlet of circulating pump C and the delivery port of drum B.
Particularly, cooling water flows into this high-temperature reactor A by heat exchanger tube water inlet 61, after carrying out exchange heat with reacted gas product 102, and the cooling water of formation temperature higher (or part is vaporized); In order to ensure that cooling water has good cooling effect to reacted gas product 102, cooling water needs to flow in drum B via the water inlet of heat exchanger tube delivery port 62 and drum B successively; In drum B, the cooling water that part has been vaporized forms steam 103(and can be used as byproduct), discharge from the venthole of drum B, the cooling water of not vaporizing flows out from the delivery port of drum B; The cooling water flowed out from the delivery port of drum B directly flow back into heat exchanger tube water inlet 61, or gets back to heat exchanger tube water inlet 61 by circulating pump C pressurized stream.In order to the not enough problem of cooling water that the steam making up discharge brings, supplement cooling water 104 and can be fed directly to heat exchanger tube water inlet 61 by moisturizing water inlet, or, supplement cooling water 104 can flow into circulating pump C inlet port by moisturizing water inlet, then flow into heat exchanger tube water inlet 61 by circulating pump C.
Visible, what this chemical system that the embodiment of the present invention provides achieved this high-temperature reactor A moves thermal process, cooling water can adopt circulating pump C pressurized circulation in start-up, can circulating pump C out of service in the normal production phase, make cooling water completely by Natural Circulation, this can effective economize energy, and the temperature of the reacted gas product that high-temperature reactor can be made to discharge declines to a great extent, thus creates advantage for the type selecting of production equipment in follow-up flow process and processing and manufacturing.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (10)
1. a high-temperature reactor, is characterized in that, comprising: shell (1) and inner core (2);
Inner core (2) is located at the inside of shell (1), and is provided with gap flow passage (3) between the inwall of the outer wall of inner core (2) and shell (1);
The inside of inner core (2) is provided with beds (5) and heat exchanger tube (6) from top to bottom; Inner core (2) is provided with the inner core air inlet (21) and inner core gas outlet (22) that are communicated with the inside of inner core (2); The place height of inner core air inlet (21) is higher than the place height of the bottom of beds (5); The place height of inner core gas outlet (22) is lower than the place height of the bottom of heat exchanger tube (6);
The bottom of shell (1) is provided with housing inlet (11) and shell gas outlet (12); Housing inlet (11) is communicated with inner core air inlet (21) by gap flow passage (3); Shell gas outlet (12) is communicated with inner core gas outlet (22);
Unstrpped gas enters the inside of inner core (2) after flowing through housing inlet (11), gap flow passage (3) and inner core air inlet (21) successively, and the gas product under the catalytic action of beds (5) after reaction of formation; Reacted gas product flows through heat exchanger tube (6) and carries out exchange heat, and discharges afterwards through inner core gas outlet (22) and shell gas outlet (12) successively.
2. high-temperature reactor according to claim 1, is characterized in that, the inside of inner core (2) is provided with end socket (4); The interior separation of inner core (2) is inner core upper chamber (23) and inner core lower cavity (24) by this end socket (4), and this end socket (4) is provided with the air communicating pipe (41) inner core upper chamber (23) be communicated with inner core lower cavity (24);
Beds (5) is located in inner core upper chamber (23); Heat exchanger tube (6) is located in inner core lower cavity (24).
3. high-temperature reactor according to claim 2, is characterized in that, the sidewall of shell (1) is provided with heat exchanger tube water inlet (61); This heat exchanger tube water inlet (61) successively through shell (1) and inner core (2), and is communicated with the heat exchanger tube (6) be located in inner core lower cavity (24);
The top of shell (1) is provided with heat exchanger tube delivery port (62); Described end socket (4) is water leg structure; The heat exchanger tube (6) be located in inner core lower cavity (24) is communicated with end socket (4), and is communicated with heat exchanger tube delivery port (62) by end socket (4).
4. high-temperature reactor according to claim 3, is characterized in that, the inside of shell (1) is provided with support member (13); Inner core (2) is arranged at the inside of shell (1) by support member (13).
5. high-temperature reactor according to claim 3, is characterized in that, also comprises: temperature measuring equipment (7); This temperature measuring equipment (7) extend into the inside of inner core (2) by the top of shell (1), to measure the reaction temperature of this high-temperature reactor.
6. high-temperature reactor according to any one of claim 1 to 5, is characterized in that, described inner core air inlet (21) comprises multiple air admission hole; These air admission holes are distributed in the top of inner core (2), and/or, on the sidewall of the inner core (2) corresponding with inner core upper chamber (23).
7. high-temperature reactor according to claim 6, is characterized in that, described air communicating pipe (41) is provided with multiple passage; On the two ends that these passages are distributed in air communicating pipe (41) and sidewall, and at least one passage is positioned at inner core upper chamber (23), at least one passage is positioned at inner core lower cavity (24);
Place, the top height of this air communicating pipe (41) higher than place, the bottom height of beds (5), and lower than place, the top height of beds (5); The difference in height of 10mm is at least there is between the top of this air communicating pipe (41) and the top of beds (5);
Place, the bottom height of this air communicating pipe (41) is higher than place, the top height of heat exchanger tube (6).
8. high-temperature reactor according to any one of claim 1 to 5, is characterized in that, also comprises: calandria (8); This calandria (8) is extend into by the top of shell (1) and is located at the inner thermal treatment zone (9) of inner core (2); This thermal treatment zone (9) is positioned at the top of beds (5);
The top of inner core (2) is located at by described inner core air inlet (21).
9. high-temperature reactor according to claim 8, it is characterized in that, described air communicating pipe (41) is provided with at least two passages, and at least one passage is positioned at inner core upper chamber (23), at least one passage is positioned at inner core lower cavity (24);
The length that the top of this air communicating pipe (41) extend into beds (5) is at most 300mm;
Place, the bottom height of this air communicating pipe (41) is higher than place, the top height of heat exchanger tube (6).
10. a chemical system, is characterized in that, comprising: the high-temperature reactor (A) according to any one of the claims 1 to 9, drum (B) and circulating pump (C);
Described high-temperature reactor (A) comprises housing inlet (11), shell gas outlet (12), heat exchanger tube water inlet (61) and heat exchanger tube delivery port (62); Unstripped gas (101) flows into this high-temperature reactor (A) by housing inlet (11), and reacted gas product (102) is flowed out by this high-temperature reactor (A) by shell gas outlet (12);
The heat exchanger tube water inlet (61) of this high-temperature reactor (A) is communicated with the delivery port of drum (B) with the delivery port of circulating pump (C) respectively; The heat exchanger tube delivery port (62) of this high-temperature reactor (A) is communicated with the water inlet of drum (B); The water inlet of circulating pump (C) is communicated with the delivery port of drum (B);
Moisturizing water inlet is provided with between the delivery port of heat exchanger tube water inlet (61) and drum (B), and/or, be provided with moisturizing water inlet between the water inlet of circulating pump (C) and the delivery port of drum (B).
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| CN101773808A (en) * | 2007-10-19 | 2010-07-14 | 杭州林达化工技术工程有限公司 | Combined reaction device |
| CN102160981A (en) * | 2010-02-24 | 2011-08-24 | 杭州林达化工技术工程有限公司 | Catalytic reaction equipment |
| CN203379866U (en) * | 2013-08-06 | 2014-01-08 | 北京华福工程有限公司 | High-temperature reactor and chemical engineering system using high-temperature reactor |
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| CN101773808A (en) * | 2007-10-19 | 2010-07-14 | 杭州林达化工技术工程有限公司 | Combined reaction device |
| CN102160981A (en) * | 2010-02-24 | 2011-08-24 | 杭州林达化工技术工程有限公司 | Catalytic reaction equipment |
| CN203379866U (en) * | 2013-08-06 | 2014-01-08 | 北京华福工程有限公司 | High-temperature reactor and chemical engineering system using high-temperature reactor |
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