CN105999752A - Alcohol continuous rectifying still production process - Google Patents
Alcohol continuous rectifying still production process Download PDFInfo
- Publication number
- CN105999752A CN105999752A CN201610546457.1A CN201610546457A CN105999752A CN 105999752 A CN105999752 A CN 105999752A CN 201610546457 A CN201610546457 A CN 201610546457A CN 105999752 A CN105999752 A CN 105999752A
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- CN
- China
- Prior art keywords
- ethanol
- production technology
- continuous
- rectification
- temperature
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Classifications
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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
- B01D3/009—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in combination with chemical reactions
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
Abstract
The invention relates to an alcohol continuous rectifying still production process. The process includes the following steps of firstly, putting in a backing material; secondly, conducting continuous feeding; thirdly, conducting heating and rectifying; fourthly, conducting liquefying and condensing; fifthly, conducting secondary separating; sixthly, conducting continuous draining; seventhly, collecting a finished alcohol product; eighthly, collecting tail gas. The process has the advantages of being comprehensive in function, convenient and rapid to use and low in cost.
Description
Technical field
The invention belongs to chemical production technology technical field, be specifically related to a kind of ethanol continuous rectification still production technology.
Background technology
In ethanol refinery still production technology, ethanol still rectification is that gap feeds intake, and the water in rectifying still is got rid of in gap, the carrying out time making ethanol refinery is long, yielding poorly, alcohol content contained by rectifying still draining is high, is unfavorable for alcohol recycle, can not produce continuously, operation process a kind of to this exploitation is simple, and easy to operate, rectifying still draining is low without cooling, energy consumption, yield is high, and practical and convenient ethanol continuous rectification still production technology is the most necessary.
Summary of the invention
The invention aims to overcome the deficiencies in the prior art, and provide a kind of technique to be simple and convenient to operate, energy consumption is low, yield is high ethanol continuous rectification still production technology.
The object of the present invention is achieved like this: a kind of ethanol continuous rectification still production technology, and this production technology comprises the following steps:
Step 1: throw in bed material；2m raw material is put into bottom rectifying still；
Step 2: continuous feed；Opening inlet control valve, use the centrifugal pump of 316L to be continually fed into raw material by the charging aperture in the middle part of tower, control material flow is 2m/s；
Step 3: add thermal rectification；Controlling heater by controller and raw material is carried out continuous heating, heating and temperature control is at 80 DEG C 95 DEG C；
Step 4: liquefaction condensation；Open alcohol vapor cooling condensation that overhead condenser makes rectification go out to liquid；
Step 5: secondary separation；Carry out reactor heating secondary separation ethanol and water, control temperature of reaction kettle well at 108 DEG C 110 DEG C；
Step 6: continuous drainage；The water of Polycondensation Reactor and Esterification Reactor is discharged continuously by controlling water discharging valve；
Step 7: collect finished product ethanol；The ethanol of liquefaction is collected continuously alcohol container, and by effusion meter statistic flow, control overhead reflux ratio for 1:2 1:4；
Step 8: collect tail gas；Collect the tail gas of alcohol of evacuation port, be recovered in receiver after being cooled down by capillary condensation device；
Raw material in described step 1 is disposably thrown in by charging aperture.
Material flow in described step 2 is controlled by effusion meter and control valve.
Heating-up temperature in described step 3 and the temperature of reaction kettle in step 5 all measure monitoring by temperature sensor in good time.
Water discharging valve in described step 6 is flow valve.
Beneficial effects of the present invention: in one ethanol continuous rectification still production technology of the present invention, utilize reactor heater compound use, secondary separation technique, yield is high, effective, save manpower, the advantages such as alcohol content is stable, tail gas lowered temperature reclamation again utilizes, and in the water of secondary separation, contained alcohol content is low, is greatly improved ethanol and purifies by rate, ethanol high purity 95%, realizing continuous rectification, rectifying still draining is low without cooling, energy consumption, and the present invention has the advantage that technique is simple and convenient to operate, energy consumption is low, yield is high.
Specific embodiment
The present invention is described further below.
Embodiment 1
A kind of ethanol continuous rectification still production technology, this production technology comprises the following steps: step 1: throw in bed material；2m raw material is put into bottom rectifying still；Step 2: continuous feed；Opening inlet control valve, use the centrifugal pump of 316L to be continually fed into raw material by the charging aperture in the middle part of tower, control material flow is 2m/s；Step 3: add thermal rectification；Controlling heater by controller and raw material is carried out continuous heating, heating and temperature control is at 80 DEG C 95 DEG C；Step 4: liquefaction condensation；Open alcohol vapor cooling condensation that overhead condenser makes rectification go out to liquid；Step 5: secondary separation；Carry out reactor heating secondary separation ethanol and water, control temperature of reaction kettle well at 108 DEG C 110 DEG C；Step 6: continuous drainage；The water of Polycondensation Reactor and Esterification Reactor is discharged continuously by controlling water discharging valve；Step 7: collect finished product ethanol；The ethanol of liquefaction is collected continuously alcohol container, and by effusion meter statistic flow, control overhead reflux ratio for 1:2 1:4；Step 8: collect tail gas；Collect the tail gas of alcohol of evacuation port, be recovered in receiver after being cooled down by capillary condensation device.
In one ethanol continuous rectification still production technology of the present invention, utilize reactor heater compound use, secondary separation technique, yield is high, effective, saves manpower, the advantages such as alcohol content is stable, tail gas lowered temperature reclamation again utilizes, and in the water of secondary separation, contained alcohol content is low, is greatly improved ethanol and purifies by rate, ethanol high purity 95%, realizing continuous rectification, rectifying still draining is low without cooling, energy consumption, and the present invention has the advantage that technique is simple and convenient to operate, energy consumption is low, yield is high.
Embodiment 2
A kind of ethanol continuous rectification still production technology, this production technology comprises the following steps: step 1: throw in bed material；2m raw material is put into bottom rectifying still；Step 2: continuous feed；Opening inlet control valve, use the centrifugal pump of 316L to be continually fed into raw material by the charging aperture in the middle part of tower, control material flow is 2m/s；Step 3: add thermal rectification；Controlling heater by controller and raw material is carried out continuous heating, heating and temperature control is at 80 DEG C 95 DEG C；Step 4: liquefaction condensation；Open alcohol vapor cooling condensation that overhead condenser makes rectification go out to liquid；Step 5: secondary separation；Carry out reactor heating secondary separation ethanol and water, control temperature of reaction kettle well at 108 DEG C 110 DEG C；Step 6: continuous drainage；The water of Polycondensation Reactor and Esterification Reactor is discharged continuously by controlling water discharging valve；Step 7: collect finished product ethanol；The ethanol of liquefaction is collected continuously alcohol container, and by effusion meter statistic flow, control overhead reflux ratio for 1:2 1:4；Step 8: collect tail gas；Collect the tail gas of alcohol of evacuation port, it is recovered in receiver after being cooled down by capillary condensation device, raw material in described step 1 is disposably thrown in by charging aperture, material flow in described step 2 is controlled by effusion meter and control valve, heating-up temperature in described step 3 and the temperature of reaction kettle in step 5 all measure monitoring by temperature sensor in good time, and the water discharging valve in described step 6 is flow valve.
In one ethanol continuous rectification still production technology of the present invention, utilize reactor heater compound use, secondary separation technique, yield is high, effective, saves manpower, the advantages such as alcohol content is stable, tail gas lowered temperature reclamation again utilizes, and in the water of secondary separation, contained alcohol content is low, is greatly improved ethanol and purifies by rate, ethanol high purity 95%, realizing continuous rectification, rectifying still draining is low without cooling, energy consumption, and the present invention has the advantage that technique is simple and convenient to operate, energy consumption is low, yield is high.
Claims (5)
1. an ethanol continuous rectification still production technology, this production technology comprises the following steps:
Step 1: throw in bed material；2m raw material is put into bottom rectifying still；
Step 2: continuous feed；Opening inlet control valve, use the centrifugal pump of 316L to be continually fed into raw material by the charging aperture in the middle part of tower, control material flow is 2m/s；
Step 3: add thermal rectification；Controlling heater by controller and raw material is carried out continuous heating, heating and temperature control is at 80 DEG C 95 DEG C；
Step 4: liquefaction condensation；Open alcohol vapor cooling condensation that overhead condenser makes rectification go out to liquid；
Step 5: secondary separation；Carry out reactor heating secondary separation ethanol and water, control temperature of reaction kettle well at 108 DEG C 110 DEG C；
Step 6: continuous drainage；The water of Polycondensation Reactor and Esterification Reactor is discharged continuously by controlling water discharging valve；
Step 7: collect finished product ethanol；The ethanol of liquefaction is collected continuously alcohol container, and by effusion meter statistic flow, control overhead reflux ratio for 1:2 1:4；
Step 8: collect tail gas；Collect the tail gas of alcohol of evacuation port, be recovered in receiver after being cooled down by capillary condensation device.
2. a kind of ethanol continuous rectification still production technology as claimed in claim 1, it is characterised in that: the raw material in described step 1 is disposably thrown in by charging aperture.
3. a kind of ethanol continuous rectification still production technology as claimed in claim 1, it is characterised in that: the material flow in described step 2 is controlled by effusion meter and control valve.
4. a kind of ethanol continuous rectification still production technology as claimed in claim 1, it is characterised in that: the heating-up temperature in described step 3 and the temperature of reaction kettle in step 5 all measure monitoring by temperature sensor in good time.
5. a kind of ethanol continuous rectification still production technology as claimed in claim 1, it is characterised in that: the water discharging valve in described step 6 is flow valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610546457.1A CN105999752A (en) | 2016-07-13 | 2016-07-13 | Alcohol continuous rectifying still production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610546457.1A CN105999752A (en) | 2016-07-13 | 2016-07-13 | Alcohol continuous rectifying still production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105999752A true CN105999752A (en) | 2016-10-12 |
Family
ID=57109346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610546457.1A Pending CN105999752A (en) | 2016-07-13 | 2016-07-13 | Alcohol continuous rectifying still production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105999752A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2116443B (en) * | 1982-03-11 | 1985-03-13 | Buckau Walther Ag | Method of and apparatus for producing ethanol |
| CN201316543Y (en) * | 2008-11-28 | 2009-09-30 | 刘全喜 | Alcohol continuous-rectification device |
| CN202020931U (en) * | 2011-02-25 | 2011-11-02 | 东瑞（南通）医药科技有限公司 | Constant-pressure alcohol recycling device |
| CN105498263A (en) * | 2015-12-04 | 2016-04-20 | 陕西宝塔山新材料有限公司 | Continuous alcohol recovery system and recovery method |
-
2016
- 2016-07-13 CN CN201610546457.1A patent/CN105999752A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2116443B (en) * | 1982-03-11 | 1985-03-13 | Buckau Walther Ag | Method of and apparatus for producing ethanol |
| CN201316543Y (en) * | 2008-11-28 | 2009-09-30 | 刘全喜 | Alcohol continuous-rectification device |
| CN202020931U (en) * | 2011-02-25 | 2011-11-02 | 东瑞（南通）医药科技有限公司 | Constant-pressure alcohol recycling device |
| CN105498263A (en) * | 2015-12-04 | 2016-04-20 | 陕西宝塔山新材料有限公司 | Continuous alcohol recovery system and recovery method |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20161012 |