CN200940123Y - Equipment for separating methanol - Google Patents
Equipment for separating methanol Download PDFInfo
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- CN200940123Y CN200940123Y CN 200620079556 CN200620079556U CN200940123Y CN 200940123 Y CN200940123 Y CN 200940123Y CN 200620079556 CN200620079556 CN 200620079556 CN 200620079556 U CN200620079556 U CN 200620079556U CN 200940123 Y CN200940123 Y CN 200940123Y
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- methyl alcohol
- tripping device
- separator
- tower body
- bypass
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Abstract
The utility model relates to a methanol separating device, and the technical scheme is that the utility model comprises a tower body, a gas inlet, a gas outlet, a steam-liquid separator, a methanol absorber and a mechanical separator, wherein the steam-liquid separator is positioned on the upper part of the tower body; the methanol absorber is positioned on the lower part of the tower body; the mechanical separator is positioned on the lower part of the methanol absorber. The utility model solves the problem of methanol harm in general technology, and is an updated large-scale /ultra large-scale methanol separating device which is most efficient and requires least investment.
Description
Technical field
The utility model relates to a kind of methyl alcohol tripping device.
Background technology
The methyl alcohol building-up reactions is the High Temperature High Pressure high energy consumption process of a transformation efficiency very low (domestic catalyst 4-7%, import 10-17%), the alcohol net value is 3-6% (import 9-16%) only, because the synthesizer temperature is up to more than 230 ℃, resultant of reaction methyl alcohol is to be blended in the unconverted unstripped gas that falls with the gaseous molecular form, expect methanol product and make unconverted unstripped gas continue reaction, methanol gas and unstripped gas must be separated effectively, can realize industrial production.Recent decades, traditional methanol separation method was a gas cooling--the be separated technology of (mechanical process or coalescent method) of gas/liquid is carried out, promptly (1) mixed gas to be separated that will leave the methyl alcohol reaction tower cools, gas cooling is cooled to 30-40 ℃ even lower 25 ℃, and purpose is to change the gaseous methanol in the gas mixture into liquid methanol as far as possible; (2) rely on gas and density of liquid poor, realize that in mechanical type methanol separator (utilizing gravity settling/centrifugal rotation/principles such as silk screen foam removal to make) the alternate separation of gas/liquid, isolated liquid are that to send into that storage tank makes with extra care be finished product to liquid methanol; Gas is sent into circulator circulating reaction or send into the processing of follow-up workshop section once more.Because the conventional separators separation efficiency is low, can't separate the following methanol solution body fluid of 5um mist.Several the Chinese patents (patent No. is 98233174.6,98233173.8 and 200420042280.4) of utility model people's application disclose coagulation type synthetic ammonia alcohol, ammonia, the oil separator of several employing coagulation type filter core separation of methanol, its separation accuracy is up to 0.01 μ m, though it has improved the separation accuracy of methyl alcohol greatly, but the methyl alcohol that still contains in the gas after separating less than 0.01 μ m exists, therefore it just makes the severity of methyl alcohol harm obtain alleviation, does not separate the harm that is totally brought but can not thoroughly solve methyl alcohol.Simultaneously because restrictions such as the ultra-fine fiber construction of coalescent filter core and fancy prices, collection and dispersion device can only effectively use under the operating mode of cleaning gas/steady/no solid impurity, and at present maximizations, operating mode complexity, have catalyst powder/pipeline rust assorted/solids such as wax by product exist, in the serialization methanol industry production of gas size pressure surge, collection and dispersion device not only can not use separately and (must use after the series connection mechanical separator, produce double price), and very easily can't realize effective separation because of filter core stop up to damage.Short because of work-ing life generally, price is high, effect is unstable, separate shortcoming such as not thorough can't use in the maximization device.
The tradition methanol separation method also can't further reduce because of gas temperature is subjected to energy consumption and heat-eliminating medium restriction, methanol molecules in the gas mixture can not all be condensed into liquid state, and Schwellenwert still has the methanol product of 0.2%--0.6% to mix with the gas phase state of saturation and is clipped in the unstripped gas.Individual processes adopts the washing absorption process to separate gaseous methanol, but because of energy consumption height (assimilated efficiency is low to produce a large amount of lower concentration 10%-25% dilute methanols, cause that the rectifying load strengthens, total energy consumption excessive), produce new water smoke and carry variety of problems such as (absorption liquid can't effectively separate, cause circulation and the work of band liquid, synthetic tower flooding accident) secretly and can't realize industrial applications, the venting purification operating mode of can only speeding before dingus or transformation absorption is used, and can't realize on the product separation of methanol production main line recycle gas.
Above variety of problems result causes on the whole has the methanol product that accounts for circulation gas total amount 0.5%-1.8% can't go out system to circulate repeatedly, consume energy from " taking " because of separation problem approximately, the performance that not only cause product to run off, pure net value is low, influences plant capacity, and reduced the reaction impellent and made the side reaction aggravation, strengthened the unstripped gas norm quota of consumption, harm downstream operating mode when serious causes circulator liquid hammer (single alcohol), copper to wash operational anomaly (connection alcohol), cause the permanent poisoning of catalyzer and inactivation.
The utility model content
The utility model is to solve the above-mentioned technical problem that exists in the background technology, and a kind of methyl alcohol tripping device of thoroughly separation of methanol is provided.
Technical solution of the present utility model is: the utility model is a kind of methyl alcohol tripping device, comprise tower body, inlet mouth and air outlet, its special character is: described tripping device also is provided with vapour liquid separator, methanol absorber and mechanical separator, vapour liquid separator is arranged on tower body top, methanol absorber is arranged on the vapour liquid separator below, and mechanical separator is arranged on the methanol absorber below.
Above-mentioned vapour liquid separator is collection and dispersion device or screen cloth.
Above-mentioned collection and dispersion device comprises dividing plate and filter core, and filter core is arranged on the dividing plate.
Above-mentioned collection and dispersion device comprises upper and lower two dividing plates and upper and lower two groups of filter cores, on organize filter core and be arranged on upper spacer top, a following group filter core is arranged on below the lower clapboard.
The tower body of the cavity that above-mentioned upper and lower two dividing plates constitute is provided with the bypass outlet, and the bypass outlet is communicated with the air outlet by bypass.
The tower body of the cavity that above-mentioned upper and lower two dividing plates constitute is provided with manhole.
Above-mentioned methanol absorber is absorption tray, dry load or atomizing resorber.
The tower body of above-mentioned methanol absorber top is provided with fluid inlet.
Above-mentioned inlet mouth place is provided with gas distributor, and inlet mouth is communicated with mechanical separator by gas distributor.
Above-mentioned absorption tray is the tower tray of compound bubble cap plate, compound vertical sieve tray tower tray or other existing structures.
Above-mentioned mechanical separator is gravity, centrifugal, baffling or fog separator.
Above-mentioned mechanical separator is the liquid knockout that pyramidal structure has mesh.
Above-mentioned liquid knockout below is provided with cyclone separator, and the both sides of the close tower body of cyclone separator are provided with downtake.
Above-mentioned cyclone separator below is provided with cancellated Wax remover.
The below of above-mentioned inlet mouth is provided with cancellated steady liquid device.
The tower body of above-mentioned vapour liquid separator below is provided with the bypass outlet, and described bypass outlet is communicated with the air outlet by bypass.
Tower body between above-mentioned methanol absorber and the mechanical separator is provided with down the bypass outlet, and bypass was communicated with bypass under following bypass outlet was passed through.
The tower body of above-mentioned vapour liquid separator top is provided with manhole.
One side of above-mentioned vapour liquid separator is provided with blows the wax device.
The utility model separates on the basis of pure technology in tradition, absorb methyl alcohol small droplets and the gaseous state methanol molecules that contains in the mixed gas fully less than 5 μ m with the absorption liquid in the methanol absorber (as water), and with vapour liquid separator the absorption liquid of carrying secretly in the mixed gas is separated, therefore the utlity model has following advantage:
(1) the full recovery of methyl alcohol reaction product separates;
(2) the utility model with vapour liquid separator remove in the mixed gas with absorption liquid, make that the gas mixture after handling through the utility model does not have the mist end to carry secretly, eliminate circulator/pressure-swing absorption apparatus band liquid work danger.
(3) cleaning action of methanol absorber has been removed the unsaturated acid carried secretly in the circulation gas, wax, solid impurity etc. in the utility model, methyl alcohol reaction impellent and transformation efficiency have effectively been strengthened, and prolong catalyst life and reactive behavior, improve the reactor product quality then.
(4) employing of methanol absorber has changed in the traditional separation method and must maximum possible reduce the difficulty that the mixed gas temperature causes high energy consumption/big high installation cost of cooling apparatus in the utility model, thorough separation, energy efficient and the facility investment that traditional technology realizes methyl alcohol several times or under tens of degree gas temperature condition can be higher than.
(5) the bypass outlet that is provided with from bottom to top makes methyl alcohol tripping device one install four-function, replaced the equipment configuration on mechanical type separator+1 coalescing separator+1 absorption tower, 1 big water cooler+1～～2 in the traditional separation method, also the Equipment Foundations of three costlinesses are changed be kept to Equipment Foundations, that the big bypass of pipeline changes equipment into is little of bypass, save space and great amount of investment, to the outstanding tool industrial value of maximization device.
Therefore above-mentioned all associate features have thoroughly solved the problem that methyl alcohol harm produces in the background technology, become the most effective large-scale/ultra-large type methyl alcohol tripping device of reducing investment outlay most of latest model.
Description of drawings
Fig. 1 is the structural representation of device embodiment one of the present utility model;
Fig. 2 is the structural representation of device embodiment two of the present utility model.
Embodiment
Referring to Fig. 1, tripping device of the present utility model comprises tower body 2, inlet mouth 10, air outlet 1, vapour liquid separator 17, methanol absorber 6 and mechanical separator 7, vapour liquid separator 17 is arranged on tower body 2 tops, methanol absorber 6 is arranged on vapour liquid separator 17 belows, mechanical separator 7 is arranged on methanol absorber 6 belows, this vapour liquid separator 17 is good to adopt collection and dispersion device, this collection and dispersion device comprises dividing plate 4 and filter core 18, filter core 18 is arranged on the dividing plate 4, methanol absorber 6 is good to adopt tray absorption columns dish 13, the tower body 2 of methanol absorber 6 tops is provided with fluid inlet 5, mechanical separator 7 is good with the liquid knockout that adopts pyramidal structure to have mesh, inlet mouth 10 places are provided with gas distributor, between gas distributor setting and mechanical separator and the methanol absorber 6, two portions are communicated with, gas distributor can be with the favourable distribution of the mixed gas that enters from inlet mouth 10, the liquid knockout below also can be provided with cyclone separator 8, be provided with downtake 12 around the close tower body 2 of cyclone separator 8, cyclone separator 8 belows are provided with cancellated Wax remover 11, the below of inlet mouth 10 is provided with the steady liquid device 9 of netted or cross structure, also be provided with bypass outlet 15 on the tower body 2 of vapour liquid separator 17 belows, bypass outlet 15 is communicated with air outlet 1 by bypass 19, also be provided with pipeline switching valve 16 in the bypass 19, when obstruction or fault appear in vapour liquid separator 17, can be under not out-of-work state at the methyl alcohol tripping device, by bypass 19 mixed gas is drawn from bypass 19 and to enter air outlet 1, also can have down bypass outlet 21 between mechanical separator 7 tops and methanol absorber 6 belows on the tower body 2, following bypass outlet 21 is passed through down, and bypass 20 is communicated with bypass 19, also be provided with the pipeline switching valve in the bypass 20 down, in device start-stop car or methanol absorber 6, during vapour liquid separator 17 break-ofves, can be under not out-of-work state at the methyl alcohol tripping device, by following bypass outlet 21 mixed gas is drawn from bypass 20 down and to enter air outlet 1, following bypass outlet 21 also can directly be communicated with air outlet 1 by bypass 20 down.The tower body 2 of vapour liquid separator 17 tops is provided with manhole 3, can enter vapour liquid separator 17 tops by manhole 3 overhauls, vapour liquid separator 17 1 sides are provided with blows wax device 14, and a small amount of wax of adhering on vapour liquid separator 17 and tower body internals can be dissolved cleaning by blowing wax device 14.
Referring to Fig. 2, when vapour liquid separator 17 of the present utility model adopts collection and dispersion device, this collection and dispersion device also can comprise upper and lower two dividing plates 24,27 and upper and lower two groups of filter cores 26,25, the described group filter core 26 of going up is arranged on upper spacer 24 tops, the described filter core of group down is provided with 25 below lower clapboard 27, and two groups of filter cores can further guarantee the effect of New Year's Eve absorption liquid.The cavity that upper and lower two dividing plates 24,27 constitute has formed gas distributing chamber, bypass outlet 15 can be arranged in the gas distributing chamber, also can be arranged on lower clapboard 27 belows, also can be provided with manhole 23 in the following gas distributing chamber, can directly enter in the gas distributing chamber by manhole 23 workmans and overhaul.
During device work of the present utility model, water is from fluid inlet 5 absorption tray 13 of flowing through, the mixed gas that will come out from the methyl alcohol reaction tower feeds from inlet mouth 10 then, in the mixed gas uphill process, the methyl alcohol of big drop separates with mixed gas by self gravitation and falls, remove wax in the mixed gas through Wax remover 11 in the remaining mixed gas uphill process, separate methyl alcohol droplet again by cyclone separator 8 greater than 10 μ m, the liquid knockout that has mesh through pyramidal structure separates the methyl alcohol droplet of diameter greater than 5 μ m, by the water on the absorption tray 13 methyl alcohol droplet and the gaseous state methanol molecules of diameter less than 5 μ m absorbed fully then, so far, contained methyl alcohol by complete isolating mixed gas enter again dewater in the collection and dispersion device after, 1 discharges from the air outlet, and absorbed the water of methyl alcohol, and separated greater than 10 μ m the methyl alcohol droplet and all fall into bottom cavity surplus the steady liquid device 9 after alcohol discharging port 22 is discharged greater than the methyl alcohol droplet of 5 μ m by downtake 12 or along tower body 2.
Claims (19)
1, a kind of methyl alcohol tripping device, comprise tower body, inlet mouth and air outlet, it is characterized in that: described tripping device also is provided with vapour liquid separator, methanol absorber and mechanical separator, described vapour liquid separator is arranged on tower body top, described methanol absorber is arranged on the vapour liquid separator below, and described mechanical separator is arranged on the methanol absorber below.
2, methyl alcohol tripping device according to claim 1 is characterized in that: described vapour liquid separator is collection and dispersion device or screen cloth.
3, methyl alcohol tripping device according to claim 2, it is characterized in that: described collection and dispersion device comprises dividing plate and filter core, described filter core is arranged on the dividing plate.
4, methyl alcohol tripping device according to claim 2 is characterized in that: described collection and dispersion device comprises upper and lower two dividing plates and upper and lower two groups of filter cores, and the described group filter core of going up is arranged on the upper spacer top, and described group filter core down is arranged on the lower clapboard below.
5, methyl alcohol tripping device according to claim 4 is characterized in that: the tower body of the cavity that described upper and lower two dividing plates constitute is provided with the bypass outlet, and described bypass outlet is communicated with the air outlet by bypass.
6, methyl alcohol tripping device according to claim 5 is characterized in that: the tower body of the cavity that described upper and lower two dividing plates constitute is provided with manhole.
7, according to claim 1 or 2 or 3 or 4 described methyl alcohol tripping devices, it is characterized in that: described methanol absorber is absorption tray, dry load or atomizing resorber.
8, methyl alcohol tripping device according to claim 7 is characterized in that: the tower body of described methanol absorber top is provided with fluid inlet.
9, methyl alcohol tripping device according to claim 7 is characterized in that: described inlet mouth place is provided with gas distributor, and described inlet mouth is communicated with mechanical separator by gas distributor.
10, methyl alcohol tripping device according to claim 7 is characterized in that: described absorption tray is compound bubble cap plate or compound vertical sieve tray tower tray.
11, methyl alcohol tripping device according to claim 7 is characterized in that: described mechanical separator is gravity, centrifugal, baffling or fog separator.
12, methyl alcohol tripping device according to claim 11 is characterized in that: described mechanical separator is the liquid knockout that pyramidal structure has mesh.
13, methyl alcohol tripping device according to claim 12 is characterized in that: described liquid knockout below is provided with cyclone separator, is provided with downtake around the close tower body of described cyclone separator.
14, methyl alcohol tripping device according to claim 13 is characterized in that: described cyclone separator below is provided with cancellated Wax remover.
15, the methyl alcohol tripping device of stating according to claim 14 is characterized in that: the below of described inlet mouth is provided with cancellated steady liquid device.
16, methyl alcohol tripping device according to claim 7 is characterized in that: the tower body of described vapour liquid separator below is provided with the bypass outlet, and described bypass outlet is communicated with the air outlet by bypass.
17, methyl alcohol tripping device according to claim 16 is characterized in that: the tower body between described methanol absorber and the mechanical separator is provided with down the bypass outlet, and bypass was communicated with bypass under the described outlet of bypass was down passed through.
18, methyl alcohol tripping device according to claim 17 is characterized in that: the tower body of described vapour liquid separator top is provided with manhole.
19, methyl alcohol tripping device according to claim 7 is characterized in that: a side of described vapour liquid separator is provided with blows the wax device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620079556 CN200940123Y (en) | 2006-08-09 | 2006-08-09 | Equipment for separating methanol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620079556 CN200940123Y (en) | 2006-08-09 | 2006-08-09 | Equipment for separating methanol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200940123Y true CN200940123Y (en) | 2007-08-29 |
Family
ID=38746304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620079556 Expired - Fee Related CN200940123Y (en) | 2006-08-09 | 2006-08-09 | Equipment for separating methanol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200940123Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121637B (en) * | 2006-08-09 | 2011-06-01 | 李彩琴 | Methanol separation method and device |
| CN103182234A (en) * | 2013-03-21 | 2013-07-03 | 安徽淮化股份有限公司 | Gas-liquid separating device of low-temperature methanol washing absorption tower |
| CN108329192A (en) * | 2018-01-13 | 2018-07-27 | 安徽金禾实业股份有限公司 | In a kind of methanol production in gas recovery crude carbinol method and device |
-
2006
- 2006-08-09 CN CN 200620079556 patent/CN200940123Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121637B (en) * | 2006-08-09 | 2011-06-01 | 李彩琴 | Methanol separation method and device |
| CN103182234A (en) * | 2013-03-21 | 2013-07-03 | 安徽淮化股份有限公司 | Gas-liquid separating device of low-temperature methanol washing absorption tower |
| CN108329192A (en) * | 2018-01-13 | 2018-07-27 | 安徽金禾实业股份有限公司 | In a kind of methanol production in gas recovery crude carbinol method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070829 Termination date: 20140809 |
|
| EXPY | Termination of patent right or utility model |