CN113105309A - Alcohol molecular sieve dehydration method - Google Patents
Alcohol molecular sieve dehydration method Download PDFInfo
- Publication number
- CN113105309A CN113105309A CN202110307010.XA CN202110307010A CN113105309A CN 113105309 A CN113105309 A CN 113105309A CN 202110307010 A CN202110307010 A CN 202110307010A CN 113105309 A CN113105309 A CN 113105309A
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- CN
- China
- Prior art keywords
- alcohol
- finished product
- tank
- adsorption tower
- raw material
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 230000018044 dehydration Effects 0.000 title claims abstract description 15
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000002808 molecular sieve Substances 0.000 title claims abstract description 11
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 238000001179 sorption measurement Methods 0.000 claims abstract description 27
- 239000002994 raw material Substances 0.000 claims abstract description 26
- 238000011084 recovery Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 abstract description 7
- 235000019441 ethanol Nutrition 0.000 description 32
- 239000000498 cooling water Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 229960000935 dehydrated alcohol Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229960004756 ethanol Drugs 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses an alcohol molecular sieve dehydration method, which comprises a general-grade 95% alcohol tank, a raw material tank connected with the general-grade 95% alcohol tank, a feed pump connected with the raw material tank, a raw material alcohol preheater connected with the feed pump, an adsorption tower bottom material cooler connected with the raw material alcohol preheater, and a finished product condenser connected with the adsorption tower bottom material cooler, the alcohol dehydration device comprises a finished product alcohol temporary storage tank connected with the finished product condenser, a finished product pump connected with the finished product alcohol temporary storage tank, a finished product cooler group connected with the finished product pump, an evaporator connected with the raw material alcohol preheater, a superheater connected with the evaporator, an adsorption tower connected with the superheater and a recovery tower connected with the adsorption tower, and is characterized in that the dehydration capacity is high, the product quality is high, and the concentration of ethanol after dehydration can reach 99.95%.
Description
Technical Field
The invention relates to the field of alcohol processing, in particular to an alcohol molecular sieve dehydration method.
Background
The production of the absolute ethyl alcohol in the traditional process is mainly realized by adopting a vacuum rectification mode, but the method has the advantages of complex flow, higher equipment requirement, high energy consumption, high production cost and the need of being carried out in a vacuum state, so that the effect of low energy consumption and low cost can be realized by adopting an adsorption dehydration technology, and the existing adsorption dehydration technology adopts crops as an adsorbent to realize adsorption, but the mode has the advantages of lower automation degree and high labor intensity.
Disclosure of Invention
Aiming at the technical problem, the invention provides an alcohol molecular sieve dehydration method,
the method comprises the following steps:
the device comprises a general 95% alcohol tank, a raw material tank connected with the general 95% alcohol tank, a feed pump connected with the raw material tank, a raw material alcohol preheater connected with the feed pump, an adsorption tower bottom material cooler connected with the raw material alcohol preheater, a finished product condenser connected with the adsorption tower bottom material cooler, a finished product alcohol temporary storage tank connected with the finished product condenser, a finished product pump of the finished product alcohol temporary storage tank, a finished product cooler group connected with the finished product pump, an evaporator connected with the raw material alcohol preheater, a superheater connected with the evaporator, an adsorption tower connected with the superheater, and a recovery tower connected with the adsorption tower, the feed pump is connected with an unqualified product emergency tank, the top of the raw material tank is provided with a condenser, the adsorption tower is connected with a recovery tower, and the bottom of the recovery tower is connected with a reboiling tank.
Preferably, the reboiling tank is connected with a light wine heat exchanger.
Preferably, the light wine heat exchanger is connected with a boiler.
Preferably, the finished product cooler group is connected with a cooling tower pipeline, and the cooling tower pipeline is communicated with a cooling tower.
Has the advantages that:
1. the adsorption tower molecular sieve is adopted for dehydration, the dehydration capability is strong, the product quality is high, and the concentration of ethanol after dehydration can reach 99.95%.
2. The energy consumption is lower and is less than 560kJ/L compared with the traditional production mode.
3. The operation is simple, the automation degree is high, and complete electric control can be realized.
4. The cooling water is recovered as heating steam of the whole alcohol processing system, and environmental pollution and three-waste discharge are not caused.
Drawings
The invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of the overall mechanism of the embodiment of the present invention.
The figures in the drawings represent:
1. the system comprises a general-grade 95% alcohol tank 2, an unqualified product emergency tank 3, an alcohol tower condenser 4, a raw material tank 5, a feed pump 6, a finished product alcohol temporary storage tank 7, an anhydrous alcohol storage tank 8, a finished product pump 9, a finished product cooler group 10, a finished product condenser 11, a raw material alcohol preheater 12, an adsorption tower bottom material cooler 13, an adsorption tower 14, a recovery tower 15, an evaporator 16, a superheater 17, a reboiling tank 18, a light wine heat exchanger 19 and a boiler.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "front", "rear", "left", "right", "upper", "lower", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in figure 1, the invention comprises a general-grade 95% alcohol tank, a raw material tank connected with the general-grade 95% alcohol tank, a feeding pump connected with the raw material tank, a raw material alcohol preheater connected with the feeding pump, an adsorption tower bottom material cooler connected with the raw material alcohol preheater, a finished product condenser connected with the adsorption tower bottom material cooler, a finished product alcohol temporary storage tank connected with the finished product condenser, a finished product pump connected with the finished product alcohol temporary storage tank, a finished product cooler group connected with the finished product pump, an evaporator connected with the raw material alcohol preheater, a superheater connected with the evaporator, an adsorption tower connected with the superheater and a recovery tower connected with the adsorption tower, wherein the feeding pump is connected with an unqualified product emergency tank, the top of the raw material tank is provided with a condenser, and the recovery tower is connected with the adsorption tower, the bottom of the recovery tower is connected with a reboiling tank.
The reboiling tank is connected with a light wine heat exchanger, the light wine heat exchanger is connected with a boiler, the finished product cooler group is connected with a cooling tower pipeline, and the cooling tower pipeline is communicated with a cooling tower.
After the general 95% alcohol enters the raw material tank, a raw material alcohol preheater is carried out under the action of a feed pump to carry out preheating operation, the preheated alcohol enters an evaporator to be vaporized, the pressure in the evaporator reaches 0.28MPa, after the temperature reaches 128 ℃, alcohol vapor is adsorbed and dehydrated through a molecular sieve adsorption tower in an adsorption state from bottom to top, the dehydrated alcohol vapor enters a finished product condenser, condensate flows into a finished product alcohol temporary storage tank, and alcohol liquid output from the finished product alcohol temporary storage tank enters a finished product cooler group and is conveyed to an anhydrous alcohol storage tank through the finished product alcohol temporary storage tank.
In the whole dehydration step, cooling water generated by the condenser and the cooling unit is uniformly recovered to the water cooling tower, and the cooling water recovered in the water cooling tower is uniformly recycled as a steam raw material so as to meet the requirements of rectification and heating in other pipelines.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
Claims (4)
1. An alcohol molecular sieve dehydration method is characterized in that: including 95% alcohol tanks of general level, with the head tank that 95% alcohol tanks of general level are connected, with the charge pump that the head tank is connected, with raw materials alcohol pre-heater that the charge pump is connected, with adsorption tower bed charge cooler that raw materials alcohol pre-heater is connected, with the finished product condenser that adsorption tower bed charge cooler is connected, with finished product alcohol that finished product condenser is connected keep in jar, with finished product alcohol keeps in jar the finished product pump of jar, with finished product cooler group that the finished product pump is connected, with the evaporimeter that raw materials alcohol pre-heater is connected, with the over heater that the evaporimeter is connected, with the adsorption tower that the over heater is connected and with the recovery tower that the adsorption tower is connected, the feed pump is connected with an unqualified product emergency tank, the top of the raw material tank is provided with a condenser, the adsorption tower is connected with a recovery tower, and the bottom of the recovery tower is connected with a reboiling tank.
2. The method of claim 1, wherein the step of dehydrating the alcohol with molecular sieve comprises: the reboiling tank is connected with a light wine heat exchanger.
3. The method of claim 2, wherein the step of dehydrating the alcohol with molecular sieve comprises: the light wine heat exchanger is connected with a boiler.
4. The method of claim 1, wherein the step of dehydrating the alcohol with molecular sieve comprises: the finished product cooler group is connected with a cooling tower pipeline which is communicated with a cooling tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110307010.XA CN113105309A (en) | 2021-03-23 | 2021-03-23 | Alcohol molecular sieve dehydration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110307010.XA CN113105309A (en) | 2021-03-23 | 2021-03-23 | Alcohol molecular sieve dehydration method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113105309A true CN113105309A (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110307010.XA Pending CN113105309A (en) | 2021-03-23 | 2021-03-23 | Alcohol molecular sieve dehydration method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113105309A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1686986A (en) * | 2005-04-13 | 2005-10-26 | 天津大学 | Method for producting absolute ethyl alcohol |
| CN101088975A (en) * | 2006-06-14 | 2007-12-19 | 广东中科天元再生资源工程有限公司 | Fuel alcohol dewatering apparatus and process |
| CN102040471A (en) * | 2010-11-16 | 2011-05-04 | 广东中科天元新能源科技有限公司 | Distillation dehydration device and process for co-producing ethanol fuels and custom grade edible alcohols |
| CN104289008A (en) * | 2014-08-11 | 2015-01-21 | 肥城金塔机械科技有限公司 | Preparation apparatus for anhydrous alcohol |
| CN105001054A (en) * | 2015-07-03 | 2015-10-28 | 肥城金威机械有限公司 | Vapor phase feeding process for production of anhydrous alcohol with concentration of 99.9% |
| CN205360639U (en) * | 2015-12-28 | 2016-07-06 | 山东鲁华海洋生物科技有限公司 | One set of alcohol distillation purification device |
| CN107903149A (en) * | 2017-11-03 | 2018-04-13 | 广东中科天元新能源科技有限公司 | A kind of coproduction absolute ethyl alcohol, the devices and methods therefor of electronic grade anhydrous ethanol |
| CN109776266A (en) * | 2019-02-28 | 2019-05-21 | 肥城金塔酒精化工设备有限公司 | A kind of energy-saving equipment and its power-economizing method producing absolute alcohol |
| CN111437619A (en) * | 2020-04-21 | 2020-07-24 | 广东高科生物工程有限公司 | Multi-tower differential pressure energy-saving anhydrous alcohol distillation system and anhydrous alcohol energy-saving production method |
-
2021
- 2021-03-23 CN CN202110307010.XA patent/CN113105309A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1686986A (en) * | 2005-04-13 | 2005-10-26 | 天津大学 | Method for producting absolute ethyl alcohol |
| CN101088975A (en) * | 2006-06-14 | 2007-12-19 | 广东中科天元再生资源工程有限公司 | Fuel alcohol dewatering apparatus and process |
| CN102040471A (en) * | 2010-11-16 | 2011-05-04 | 广东中科天元新能源科技有限公司 | Distillation dehydration device and process for co-producing ethanol fuels and custom grade edible alcohols |
| CN104289008A (en) * | 2014-08-11 | 2015-01-21 | 肥城金塔机械科技有限公司 | Preparation apparatus for anhydrous alcohol |
| CN105001054A (en) * | 2015-07-03 | 2015-10-28 | 肥城金威机械有限公司 | Vapor phase feeding process for production of anhydrous alcohol with concentration of 99.9% |
| CN205360639U (en) * | 2015-12-28 | 2016-07-06 | 山东鲁华海洋生物科技有限公司 | One set of alcohol distillation purification device |
| CN107903149A (en) * | 2017-11-03 | 2018-04-13 | 广东中科天元新能源科技有限公司 | A kind of coproduction absolute ethyl alcohol, the devices and methods therefor of electronic grade anhydrous ethanol |
| CN109776266A (en) * | 2019-02-28 | 2019-05-21 | 肥城金塔酒精化工设备有限公司 | A kind of energy-saving equipment and its power-economizing method producing absolute alcohol |
| CN111437619A (en) * | 2020-04-21 | 2020-07-24 | 广东高科生物工程有限公司 | Multi-tower differential pressure energy-saving anhydrous alcohol distillation system and anhydrous alcohol energy-saving production method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20210713 |