CN109999526A - A kind of energy-saving methanol rectification technique - Google Patents
A kind of energy-saving methanol rectification technique Download PDFInfo
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- CN109999526A CN109999526A CN201910304110.XA CN201910304110A CN109999526A CN 109999526 A CN109999526 A CN 109999526A CN 201910304110 A CN201910304110 A CN 201910304110A CN 109999526 A CN109999526 A CN 109999526A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/141—Fractional distillation or use of a fractionation or rectification column where at least one distillation column contains at least one dividing wall
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
- B01D3/146—Multiple effect distillation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/26—Fractionating columns in which vapour and liquid flow past each other, or in which the fluid is sprayed into the vapour, or in which a two-phase mixture is passed in one direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/42—Regulation; Control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/42—Regulation; Control
- B01D3/4211—Regulation; Control of columns
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a kind of energy-saving methanol rectification techniques, the technique is the following steps are included: crude carbinol is pumped into the preliminary rectifying processing of progress inside pre-rectifying tower by introducing the effect of pump, after removing light component therein and some substances with methanol azeotropic, the gas that tower top comes out enters the condenser of tower top, the condensate liquid that overhead condenser is isolated enters backflash, then it is pumped into inside compression rectification tower by reflux and carries out rectifying again, the gas entered in compression rectification tower carries out pressurization heating by methanol gas compressor, compressed gas passes through heat source of the heat conducting pipe as atmospheric distillation tower reboiler, compression rectification tower tower reactor comes out liquid and carries out rectifying by the tower top that the effect of infusion pump is pumped into atmospheric distillation tower through liquid-transport pipe-line.The present invention not only reduces the load of main distillation column, has saved steam and cooling water, and reduces the gradient of liquid level on liquid dispersion and high capacity tray, increases the residence time when rectifying of methanol rectification technique.
Description
Technical field
The present invention relates to methanol rectification technology field, specially a kind of energy-saving methanol rectification technique.
Background technique
Methanol is important Elementary Chemical Industry product and Organic Chemicals, it, which is that one kind is colourless, has alcohol smell volatile
Liquid, for manufacturing formaldehyde and pesticide etc., and extractant and the denaturant of alcohol etc. for being used as organic matter, in the manufacture of methanol
It is needed in journey using rectifier unit, by larger for the consumption of steam and cooling water in methanol rectification, and for rectifying
The load of tower is larger, to cannot achieve energy-efficient purpose, also some methanol rectification techniques are easy to happen liquid during fabrication and return
Mixed phenomenon, and the mass transfer effect of stagnant area and recirculating zone is leveraged, increase the gradient of liquid level on high capacity tray, or even have
A little residence times of the methanol rectification technique in rectifying are shorter, thus rectification effect when reducing methanol rectification, while to behaviour
The rectifying of author brings very big puzzlement.
Summary of the invention
The purpose of the present invention is to provide a kind of energy-saving methanol rectification techniques, to solve to propose first in above-mentioned background technique
The load of alcohol rectification process rectifying column is larger, steam and cooling water is not enough saved when use, and be easy to happen liquid dispersion, with
And the problem that residence time when rectifying is shorter.
To achieve the above object, the invention provides the following technical scheme: a kind of energy-saving methanol rectification technique, the technique packet
Include following steps:
Step 1: crude carbinol is pumped into the preliminary rectifying processing of progress inside pre-rectifying tower by introducing the effect of pump, it is removed
In light component and some substances with methanol azeotropic after, the gas that tower top comes out enters the condenser of tower top, and tower reactor comes out liquid
The inside that body enters compression rectification tower carries out rectifying；
Step 2: the condensate liquid that overhead condenser is isolated enters backflash, compression rectification tower is then pumped by reflux
Inside carries out rectifying again, and the gas entered in compression rectification tower carries out pressurization heating by methanol gas compressor, after compression
Gas pass through heat source of the heat conducting pipe as atmospheric distillation tower reboiler；
Step 3: compression rectification tower tower reactor, which comes out liquid, is pumped into atmospheric distillation through liquid-transport pipe-line by the effect of infusion pump
The tower top of tower carries out rectifying, and the waste water generated after the overhead gas rectifying of atmospheric distillation tower flow to the tower reactor of atmospheric distillation tower, leads to
The effect for crossing waste water discharge pump pumps out waste water through side take-off mouth, reduces the alcohol content in waste water.
Preferably, the crude carbinol must when the effect of pump is pumped into inside pre-rectifying tower and carries out preliminary rectifying processing by introducing
Water must be added as extractant from pre-rectifying tower tower top under the cooperation of check valve and water injection pipe.
Preferably, the crude carbinol through introducing the effect of pump be pumped into inside pre-rectifying tower according to the opening and closing of delay mechanism come
The residence time of rectifying is determined, to increase rectification effect.
Preferably, the gas after the rectifying into compression rectification tower mixes gas-liquid uniformly by the effect of high capacity tray
It closes, and the special calotte of high capacity tray surface setting, makes the liquid ejected along fluid flow, while the side plate of calotte
The aperture being provided with plays the role of leading spray, can effectively reduce gradient of liquid level, liquid is avoided to stop back-mixing.
Preferably, the operating pressure of the methanol gas compressor is (150)~(560) KPa, and operation temperature is (337)
~(433) K, and the operating pressure of atmospheric distillation tower (8) is (100)~(180) KPa, and operation temperature is (337)~(363)
K。
Preferably, the in-house structure of delay, which is disposed with, is detained plate, baffle, deep gouge and takes blame for others, by heavy
Promotion of taking blame for others inside slot is detained plate and is moved up and down, and promotes to be detained formation opening and closing conjunction state between plate and baffle.
Preferably, the waste water generated after the atmospheric distillation tower rectifying determines alcohol content according to the detection of concentration detector
Concentration.
Compared with prior art, the beneficial effects of the present invention are: the energy-saving methanol rectification technique not only reduces main essence
The load for evaporating tower has saved steam and cooling water, and reduces the gradient of liquid level on liquid dispersion and high capacity tray, increases
Residence time when methanol rectification technique rectifying；
1, by using three tower scheme of pre-rectifying tower, pressurizing tower rectifying and atmospheric distillation tower, main distillation column is reduced
Load, and atmospheric tower passes through heat conducting pipe and not only saves steam using the steam condensation heat for column overhead of pressurizeing as heating source, but also saves
Cooling water；
2, by the way that special calotte, calotte is arranged on the inside of compression rectification tower setting high capacity tray, high capacity tray surface
Side plate be provided with aperture, alleviate the mass transfer effect of stagnant area and recirculating zone, increase mass-transfer efficiency, to reduce liquid
Gradient of liquid level on back-mixing and high capacity tray；
3, by being detained plate, baffle, deep gouge in the inside setting for being detained mechanism and taking blame for others, pass through taking blame for others inside deep gouge
It pushes that be detained plate mobile, promotes to be detained and form opening and closing conjunction state between plate and baffle, when increasing methanol rectification technique rectifying
Residence time, to improve the rectification effect of methanol rectification technique.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention；
Fig. 2 is broken section structural schematic diagram of the invention；
Fig. 3 is delay mechanism enlarged structure schematic diagram of the invention.
In figure: 1, pre-rectifying tower；101, condenser；102, backflash；2, pump is introduced；3, reflux pump；4, check valve；5, it infuses
Water pipe；6, compression rectification tower；601, heat conducting pipe；7, liquid-transport pipe-line；8, atmospheric distillation tower；9, infusion pump；10, concentration detector；
11, side take-off mouth；12, waste water discharge pump；13, methanol gas compressor；14, it is detained mechanism；1401, it is detained plate；1402, it keeps off
Plate；1403, deep gouge；1404, it takes blame for others；15, high capacity tray；16, calotte；17, aperture.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-3, a kind of embodiment provided by the invention: a kind of energy-saving methanol rectification technique, the technique include
Following steps: crude carbinol is pumped into inside pre-rectifying tower 1 by the effect of introducing pump 2 and carries out preliminary rectifying processing, in the process
Determine residence time of rectifying according to the opening and closing for being detained mechanism 14, to increase rectification effect, be detained 14 internal structure of mechanism according to
Secondary be provided with is detained plate 1401, baffle 1402, deep gouge 1403 and takes blame for others 1404,1404 is pushed away by taking blame for others inside deep gouge 1403
The dynamic plate 1401 that is detained moves up and down, and promotes to be detained formation opening and closing conjunction state between plate 1401 and baffle 1402, when increasing rectifying
Residence time, after removing light component therein and some substances with methanol azeotropic, the gas that tower top comes out enters tower top
Condenser 101, tower reactor come out the inside progress rectifying that liquid enters compression rectification tower 6, the condensation that overhead condenser 101 is isolated
Liquid enters backflash 102, is then sent into inside compression rectification tower 6 by reflux pump 3 and carries out rectifying again, passes through pre- essence in crude carbinol
The inside for evaporating tower 1 must add under the cooperation of water injection pipe 5 from 1 tower top of pre-rectifying tower in check valve 4 when preliminary rectifying processing
Enter water as extractant, for extracting work, passes through the work of high capacity tray 15 after rectifying into the gas of compression rectification tower 6 later
With mixing gas-liquid uniformly, and the special calotte 16 of 15 surface of high capacity tray setting, make the liquid ejected along liquid stream stream
It is dynamic, while the aperture 17 that the side plate of calotte 16 is provided with, play the role of leading spray, gradient of liquid level can be effectively reduced, liquid is avoided to stop
Air-teturning mixed phenomenon, gas are added under certain 15 number of plies of high capacity tray by adjusting reflux ratio control in compression rectification 6 rectifying of tower
The content of ethyl alcohol in refined methanol in the atmospheric distillation tower 8 of rectifying column 6 is pressed to reach the requirement of national standard high-class product, meanwhile, by adjusting
The produced quantity of two column overheads, heat needed for making the high-grade condensation heat of compression rectification tower 6 can satisfy 8 reboiler of atmospheric distillation tower
Amount, so the reflux ratio of the tower and produced quantity control the content of ethyl alcohol in atmospheric distillation tower 8, by adjusting this reflux ratio and adopting
Output can achieve the purpose that two towers are respectively produced the refined methanol product of different quality；
According to Fig.2, in compression rectification 6 rectifying of tower, it is big that high capacity tray 15 is suitable for big tower diameter or liquid-vapour ratio
Operating condition, 16 rule of calotte on 15 surface of high capacity tray is in rectanglar arrangement, provides smoothly channel for liquid, avoids liquid layer excessively high,
The liquid of liquid injection to calotte 16 has directionality simultaneously, reduces gradient of liquid level on liquid dispersion and plate, increases mass transfer effect
Rate confirms in 15 liquid phase of high capacity tray exist by the measurement to common valve plate liquid phase particle residence time destribution
Apparent channel eases up slow flow area forming stagnant area at the tower wall, the exclusive design feature of high capacity tray 15 itself and
Stereo-spray mass transfer feature, liquid, by gas lift to cover, are flowed in cover with cover outer circulation, gas-liquid by 16 bottom gap of calotte
It is uniformly mixed, special 16 structure of calotte of high capacity tray 15, the liquid ejected can be made along fluid flow, reduce the liquid on column plate
Face gradient improves mass-transfer efficiency, and the special construction of calotte 16 is that one side plate is provided with aperture 17, plays the role of leading spray, can be effective
Reduction gradient of liquid level, avoid liquid from stopping back-mixing, improve distribution of the liquid on column plate, while by calculating adjustable calotte 16
Bottom gap changes the lifting capacity of calotte 16, so as to improve the gas-liquid distribution on high capacity tray 15, the conjunction of this high capacity tray 15
Block design is managed, bring mass transfer dead zone due to liquid stream short circuit for avoiding 15 lap-joint of adjacent two pieces of high capacity trays from generating, due to
This efficiency with higher of high capacity tray 15, the reflux ratio of practical operation are less than the reflux ratio of design, a large amount of so as to save
Steam；
The gas entered in compression rectification tower 6 carries out pressurization heating, methanol gas compression by methanol gas compressor 13
The operating pressure of machine 13 is (150)~(560) KPa, and operation temperature is (337)~(433) K, and compressed gas passes through thermally conductive
Heat source of the pipe 601 as 8 reboiler of atmospheric distillation tower, this mode sufficiently optimize heat-exchange network, introduce " thermal coupling " energy saving skill
Art is the heating of 8 tower reactor reboiler of atmospheric distillation tower using the high fever of 6 tower top methanol of compression rectification tower under high pressure, matching adds
The produced quantity and reflux ratio for pressing rectifying column 6 and atmospheric distillation tower 8, are preferably minimized the use of steam and recirculated water, realize energy conservation
With the optimization of investment, 6 tower reactor of compression rectification tower comes out liquid and is pumped into normal pressure through liquid-transport pipe-line 7 by the effect of infusion pump 9
The tower top of rectifying column 8 carries out rectifying, and the operating pressure of atmospheric distillation tower 8 is (100)~(180) KPa, and operation temperature is (337)
~(363) K, the waste water generated after the overhead gas rectifying of atmospheric distillation tower 8 flow to the tower reactor of atmospheric distillation tower 8, pass through waste water
The effect of discharge pump 12 pumps out waste water through side take-off mouth 11, needs during waste water discharge according to concentration detector 10
It detects to determine that alcohol content concentration reduces the alcohol content in waste water, usual atmospheric distillation tower 8 can not only produce qualified refined methanol
Product, while guaranteeing that tower bottom waste water alcohol-containing is low as far as possible, this process must be by adjusting reflux ratio (controlling by compression rectification tower 6)
Refined methanol quality is controlled, in the side take-off mouth 11 that the tower lower part is set, for adjusting side line fusel oil produced quantity, so that control is useless
Methanol content in water.
Working principle: it is carried out in use, being pumped into inside pre-rectifying tower 1 by crude carbinol by the effect of introducing pump 2 first
Preliminary rectifying processing is detained plate 1401 by 1404 promotions of taking blame for others inside deep gouge 1403 into the gas inside pre-rectifying tower 1
It moves up and down, promotes to be detained formation opening and closing conjunction state between plate 1401 and baffle 1402, to increase residence time when rectifying, from
And increase rectification effect, to remove light component therein and some and methanol azeotropic substance, tower reactor comes out liquid entrance later
The inside of compression rectification tower 6 carries out rectifying, and the gas that tower top comes out enters the condenser 101 of tower top, and overhead condenser 101 separates
Condensate liquid out enters backflash 102, then rectifying again is carried out by the inside that reflux pump 3 is pumped into compression rectification tower 6, in thick first
Alcohol is carried out by the inside of pre-rectifying tower 1 must be under the cooperation of check valve 4 and water injection pipe 5 from pre- rectifying when preliminary rectifying is processed
Water is added as extractant in 1 tower top of tower, for extracting work, passes through after rectifying into the gas of compression rectification tower 6 later efficient
The effect of column plate 15 mixes gas-liquid uniformly, and 15 surface of high capacity tray is provided with special calotte 16, makes the liquid ejected
Body is along fluid flow, while the side plate of calotte 16 offers aperture 17, plays the role of leading spray, can effectively reduce liquid level ladder
Degree, avoids liquid from stopping back-mixing, which is suitable for big tower diameter or the big operating condition of liquid-vapour ratio, the cap on 15 surface of high capacity tray
16 rule of cover is in rectanglar arrangement, provides smoothly channel for liquid, avoids liquid layer excessively high, while liquid injection is to the liquid of calotte 16
Body has directionality, reduces gradient of liquid level on liquid dispersion and plate, increases mass-transfer efficiency, and in 15 liquid phase of high capacity tray
There are apparent channels, the gentle slow flow area in stagnant area are being formed at tower wall, the exclusive structure of high capacity tray 15 itself is special
Point and stereo-spray mass transfer feature so that liquid by the gas lift of 16 bottom gap of calotte in covering, in cover with cover outer circulation
Flowing, gas-liquid mixed is uniform, special 16 structure of calotte of high capacity tray 15, and the liquid ejected can be made along fluid flow, reduced
Gradient of liquid level on column plate improves mass-transfer efficiency, and the special construction of calotte 16 is that one side plate is provided with aperture 17, plays and leads spray work
With can effectively reduce gradient of liquid level, liquid is avoided to stop back-mixing, improve distribution of the liquid on column plate, while adjustable by calculating
The bottom gap of whole calotte 16 changes the lifting capacity of calotte 16, and so as to improve the gas-liquid distribution on high capacity tray 15, this is efficiently
The reasonable block design of column plate 15, bring mass transfer due to liquid stream short circuit for avoiding 15 lap-joint of adjacent two pieces of high capacity trays from generating
Dead zone, due to this efficiency with higher of high capacity tray 15, the reflux ratio of practical operation is less than the reflux ratio of design, realizes big
The saving of steam is measured, the gas entered in compression rectification tower 6 carries out pressurization heating, methanol gas by methanol gas compressor 13
The operating pressure of compressor 13 is (150)~(560) KPa, and operation temperature is (337)~(433) K, and compressed gas passes through
Heat source of the heat conducting pipe 601 as 8 reboiler of atmospheric distillation tower, this mode sufficiently optimize heat-exchange network, introduce " thermal coupling " section
Energy technology is the heating of 8 tower reactor reboiler of atmospheric distillation tower using the high fever of 6 tower top methanol of compression rectification tower under high pressure,
Produced quantity and reflux ratio with pressurization rectifying column 6 and atmospheric distillation tower 8, are preferably minimized the use of steam and recirculated water, realize
The optimization of energy conservation and investment, 6 tower reactor of compression rectification tower come out liquid and are pumped by the effect of infusion pump 9 through liquid-transport pipe-line 7
The tower top of atmospheric distillation tower 8 carries out rectifying, and the operating pressure of atmospheric distillation tower 8 is (100)~(180) KPa, and operation temperature is
(337)~(363) K, the waste water generated after the overhead gas rectifying of atmospheric distillation tower 8 flow to the tower reactor of atmospheric distillation tower 8, pass through
The effect of waste water discharge pump 12 pumps out waste water through side take-off mouth 11, needs during waste water discharge according to concentration detector
10 detection determines alcohol content concentration, reduces the alcohol content in waste water, last atmospheric distillation tower 8 can not only produce qualified essence
Methanol product, while guaranteeing that tower bottom waste water alcohol-containing is low as far as possible, this process (must pass through compression rectification tower 6 by adjusting reflux ratio
Control) control refined methanol quality, in the side take-off mouth 11 that the tower lower part is set, for adjusting side line fusel oil produced quantity, thus
Control methanol content in waste water.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (7)
1. a kind of energy-saving methanol rectification technique, which is characterized in that the technique the following steps are included:
Step 1: crude carbinol is pumped into the preliminary rectifying processing of progress inside pre-rectifying tower (1), removing by introducing the effect of pump (2)
After light component therein and some substances with methanol azeotropic, the gas that tower top comes out enters the condenser (101) of tower top, tower reactor
The inside that liquid enters compression rectification tower (6) out carries out rectifying；
Step 2: the condensate liquid that overhead condenser (101) is isolated enters backflash (102), then it is sent into and is added by reflux pump (3)
Press and carry out rectifying again inside rectifying column (6), the gas entered in compression rectification tower (6) by methanol gas compressor (13) into
Row pressurization heating, compressed gas pass through the heat source of heat conducting pipe (601) as atmospheric distillation tower (8) reboiler；
It is pumped into often by the effect of infusion pump (9) through liquid-transport pipe-line (7) Step 3: compression rectification tower (6) tower reactor comes out liquid
The tower top of rectifying column (8) is pressed to carry out rectifying, the waste water generated after the overhead gas rectifying of atmospheric distillation tower (8) flow to atmospheric distillation
The tower reactor of tower (8) pumps out waste water through side take-off mouth (11) by the effect of waste water discharge pump (12), reduces the alcohol-containing in waste water
Amount.
2. a kind of energy-saving methanol rectification technique according to claim 1, it is characterised in that: the crude carbinol is by introducing
The effect of pump (2) is pumped into inside pre-rectifying tower (1) when carrying out preliminary rectifying processing must be in check valve (4) and water injection pipe (5)
Water is added as extractant from pre-rectifying tower (1) tower top under cooperation.
3. a kind of energy-saving methanol rectification technique according to claim 1, it is characterised in that: the crude carbinol is by introducing
The effect of pump (2) is pumped into pre-rectifying tower (1) the internal residence time that rectifying is determined according to the opening and closing for being detained mechanism (14), to increase
Add rectification effect.
4. a kind of energy-saving methanol rectification technique according to claim 1, it is characterised in that: the introducing pumps (2) rectifying
The gas into compression rectification tower (6) mixes gas-liquid uniformly by the effect of high capacity tray (15) afterwards, and high capacity tray
(15) the special calotte (16) of surface setting, makes the liquid ejected along fluid flow, while the side plate of calotte (16) is opened
Some apertures (17), play the role of leading spray, can effectively reduce gradient of liquid level, liquid is avoided to stop back-mixing.
5. a kind of energy-saving methanol rectification technique according to claim 1, it is characterised in that: the methanol gas compressor
(13) operating pressure is (150)~(560) KPa, and operation temperature is (337)~(433) K, and the behaviour of atmospheric distillation tower (8)
Making pressure is (100)~(180) KPa, and operation temperature is (337)~(363) K.
6. a kind of energy-saving methanol rectification technique according to claim 3, it is characterised in that: in the delay mechanism (14)
Portion's structure, which is disposed with, is detained plate (1401), baffle (1402), deep gouge (1403) and takes blame for others (1404), passes through deep gouge
(1403) internal take blame for others (1404) push and are detained plate (1401) and move up and down, promote to be detained plate (1401) and baffle (1402) it
Between formed opening and closing conjunction state.
7. a kind of energy-saving methanol rectification technique according to claim 1, it is characterised in that: the atmospheric distillation tower (8)
The waste water generated after rectifying determines alcohol content concentration according to the detection of concentration detector (10).
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110935187A (en) * | 2019-12-18 | 2020-03-31 | 重庆万盛煤化有限责任公司 | Can save paraffin removal ware of methyl alcohol rectification steam consumption |
| CN111001177A (en) * | 2019-12-17 | 2020-04-14 | 安徽昊源化工集团有限公司 | Device for preventing polymerization of gas phase dead zone of reboiler in styrene rectification process |
| CN111265902A (en) * | 2020-03-09 | 2020-06-12 | 内蒙古兰格生物科技有限公司 | Continuous rectification device |
| CN112980495A (en) * | 2021-05-21 | 2021-06-18 | 山东胜星新能源有限公司 | Distillation device for light aromatic hydrocarbons |
| CN113730938A (en) * | 2021-09-19 | 2021-12-03 | 扬州扬海深能源科技有限公司 | Continuous rectification and purification system for liquefiable gas |
| CN116785744A (en) * | 2023-06-25 | 2023-09-22 | 新疆广汇新能源有限公司 | High-efficiency crude methanol rectifying device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5385646A (en) * | 1993-09-03 | 1995-01-31 | Farmland Industries, Inc. | Method of treating chemical process effluent |
| CN1861553A (en) * | 2006-06-13 | 2006-11-15 | 天津大学 | Rectifying tech. and equipment of high purity methanol |
| CN1931807A (en) * | 2006-09-29 | 2007-03-21 | 浙江大学 | Rectifying and refining process of synthetic coarse methanol |
| CN106315545A (en) * | 2015-07-03 | 2017-01-11 | 安徽华尔泰化工股份有限公司 | Processing technique of liquid carbon dioxide by decarbonizing and resolving synthetic ammonia |
| CN106699565A (en) * | 2017-03-23 | 2017-05-24 | 山东石大胜华化工集团股份有限公司 | Device and method for energy saving and consumption reduction of dimethyl carbonate device |
-
2019
- 2019-04-16 CN CN201910304110.XA patent/CN109999526A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5385646A (en) * | 1993-09-03 | 1995-01-31 | Farmland Industries, Inc. | Method of treating chemical process effluent |
| CN1861553A (en) * | 2006-06-13 | 2006-11-15 | 天津大学 | Rectifying tech. and equipment of high purity methanol |
| CN1931807A (en) * | 2006-09-29 | 2007-03-21 | 浙江大学 | Rectifying and refining process of synthetic coarse methanol |
| CN106315545A (en) * | 2015-07-03 | 2017-01-11 | 安徽华尔泰化工股份有限公司 | Processing technique of liquid carbon dioxide by decarbonizing and resolving synthetic ammonia |
| CN106699565A (en) * | 2017-03-23 | 2017-05-24 | 山东石大胜华化工集团股份有限公司 | Device and method for energy saving and consumption reduction of dimethyl carbonate device |
Non-Patent Citations (2)
| Title |
|---|
| 张洪流等: "《化工单元操作设备设计》", 31 December 2011 * |
| 李忠铭: "《现代工业化学 第2版》", 31 August 2018 * |
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Application publication date: 20190712 |