CN106495987A - A kind of detached technological process of mixed alcohol of industry - Google Patents
A kind of detached technological process of mixed alcohol of industry Download PDFInfo
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- CN106495987A CN106495987A CN201610509846.7A CN201610509846A CN106495987A CN 106495987 A CN106495987 A CN 106495987A CN 201610509846 A CN201610509846 A CN 201610509846A CN 106495987 A CN106495987 A CN 106495987A
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- mixed alcohol
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- 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
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- 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
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- Organic Chemistry (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
A kind of disclosure of the invention detached technological process of mixed alcohol of industry, comprises the following steps, S1：Industry in the mixed alcohol storage tank of industry is mixed after alcohol removes raw material impurity through raw material filter and carries out one-level preheating；S2：Carry out two grades of preheatings；S3：Alcohol-water separation is carried out, water sends into Waste Water Treatment, remove the mixed alcohol of the industry after water and send into stripper process；S4：Purify postindustrial mixed alcohol and send into mixed alcohol recovery tower, carry out single methanol and separate with organic residue；S5：The single methanol that isolates sequentially enters methanol rectifying tower and Ethanol rectification column isolates methanol and ethanol, and is stored in corresponding storage tank, and remaining organic residue is recycled in fuel tank, that is, complete the detached technological process of the whole mixed alcohol of industry.The technological process that the present invention is provided is simple, invests and low production cost, can separate single methanol from the mixed alcohol of industry, and the selectivity of rectification is good, and separation efficiency is high, and industrial mixed alcohol added value of product is high, energy-conserving and environment-protective.
Description
Technical field
A kind of the present invention relates to chemical field, more particularly to the detached technological process of mixed alcohol of industry.
Background technology
With the fast development of domestic coal chemical industry, many Coal Chemical Industry new products are continued to bring out, while also generating perhaps
Many side-products, these side-product limited amounts, cost of disposal are high, and the pressure brought to enterprise is big, and enterprise can only be with cheap valency
Lattice are sold, and cause economic loss.
Coal mainly using dry coal powder pressure gasifying technology and F- T synthesis technology, is made powder by oil manufacture
Afterwards, starch in Fischer-Tropsch with oxygen multifuel combustion, generation crude synthesis gas, the decontaminating syngas after low temperature methanol cleaning in gasification furnace
In state bed reactor, react generation heavy wax with Fe-series catalyst, after wax filtration, qualified paraffin leads to the heavy wax
After crossing hydrogenation exquisiteness and hydrocracking reaction, oil product, such as diesel oil, Petroleum, liquefied gas etc. is produced, one of its side-product is exactly mixed
Alcohol.
Mixed alcohol has light alcohol, weight alcohol and light alcohol, weight alcohol mediation to mix dividing for alcohol.It is characterized in：1. mix alcohol low heat value to reach as high as
More than 6000Kcal/kg, flash-point are higher than room temperature, not sulfur-bearing, without ash and mechanical admixture, are that rare highly effective fuel oil is substituted
Product；2. alcohol octane number height is mixed, and the capability of antidetonance is good；3. mix rich in the single alcohol such as methanol, ethanol in alcohol, if separated, can be with
Obtain the industrial chemicals of the aspects such as single methanol and extract drugs or the catalyst synthesis of high added value.
At present, due to industrial chain linking deficiency, isolation of purified Technology falls behind domestic substantial amounts of Coal Chemical Industry side-product, nothing
The method improving product value of itself, can only lean on cheap price to sell, as the relatively low compound of added value in, do not play which
Substantial effect, causes the significant wastage of resource.
First, from for application, the main power consumption industry of China is field of traffic, has concentrated about 40% left side here
Right oil product consumption.And other current alternative energy such as biomass energy, wind and solar energy etc. do not possess and replace on a large scale
For the potentiality that field of traffic oil product is consumed.For from the angle of current technology Maturity and commercial viability, coal liquifaction
Just possess good automobile oil with methanol substituting, especially alcohol-ether fuel, production technology is relatively easy, and production cost is relatively low,
Have been provided with the basis of extensive industrialization.In chemical field, developing rapidly for chemical products industry even more need various single methanols
Chemical raw material, for chemistry, medicine, weaving, industry etc., this provides the wide market space for mixed alcohol separation.
Secondly, from for current conditions, the coal reserves of China extremely enriches, in the middle of the explored reserves in the world, I
The coal reserves of state accounts for about 15%, and petroleum reserves just accounts for 2.7% or so, and this has been resulted in the disposable energy of China
The fact that based on coal.And abundant coal reserves provides enough former materials without suspected of the coalification such as coal liquifaction, methanol chemical product
Material source.However, the Coal Chemical Industry side-product for producing in succession also will be more and more, the country is badly in need of relevant art to support and digest
Side-product is disposed, it is to avoid due to the cheap wasting of resources for bringing of Coal Chemical Industry by-product value.
For from national policy, the department such as Committee of Development and Reform proposes scale when planning that this emerging industry develops in recent years
The requirement of change, emphasizes to jump on the bandwagon, and this leading type enterprise just for coming into provides loosely good development space.
For from the angle of technical support industry development, coalification chemical product has possessed commercial operation condition ripe enough at present.
But in the production preparation process of coalification chemical product, in the side-product of institute's output in addition to it there is moisture, also contain various single methanols,
Aldehyde, ketone, carboxylic acid etc., it is difficult to separate, it is not in very high downstream product, very that can only be sold for added value with cheap price
Discharged with garbage to the very low mixed alcohol of some contents, very big problem is brought to environmental conservation.
Content of the invention
The invention aims to shortcoming present in prior art is solved, and a kind of industrial mixed alcohol for proposing is detached
Technological process.
A kind of detached technological process of mixed alcohol of industry, comprises the following steps：
S1：Mixed for industry alcohol is stored in the mixed alcohol storage tank of industry, the mixed alcohol of industry is removed in the mixed alcohol of industry through raw material filter
Raw material impurity, the mixed alcohol of industry after filtering enters first-class heat exchanger carries out one-level preheating；
S2：Secondary heat exchanger is sent into through the mixed alcohol of the industry after one-level preheating carries out two grades of preheatings；
S3：Alcohol-water separation tower is sent into through the mixed alcohol of the industry after two grades of preheatings, and isolates the moisture in the mixed alcohol of industry, separate
The moisture for going out sends into Waste Water Treatment after cooling, removes at the concentrated rear feeding stripper of the mixed alcohol of the industry after moisture
Reason, is harmful to or gas with foreign flavor enters tower top point flow container, sends into boiler combustion after process, and the heavy medium in the mixed alcohol of industry is entered
In bottom of towe reboiling tower added with conduction oil, heated heavy medium is sent back in stripper；
S4：Purify postindustrial mixed alcohol and send into mixed alcohol recovery tower, single methanol is carried out with organic residue through the effect of catalyst
Separate, and heavy medium is delivered in the bottom of towe reboiling tower added with conduction oil, heated send heavy medium back to mixed alcohol recovery tower
In, it is back to standby in return tank of top of the tower again after the cooling of tower top air cooler through mixing the single methanol isolated of alcohol recovery tower, isolates
Organic residue through first-class heat exchanger cooling after be recycled in fuel tank；
S5：The single methanol isolated enters methanol rectifying tower, and the temperature for control methanol rectifying tower is 63～67 DEG C, by methanol from
In single methanol, rectification goes out, and is stored in methanol tank, isolates the single methanol after methanol and sends into ethanol through methanol rectifying tower floss hole
Rectifying column, the temperature for controlling Ethanol rectification column is 76～83 DEG C, and by ethanol, from single methanol, rectification goes out, and is stored in ethanol storage tank
In, remaining organic residue is recycled in fuel tank, that is, complete the detached technological process of the whole mixed alcohol of industry.
Preferably, the one-level preheating temperature is 60～80 DEG C.
Preferably, the organic residue that the origin of heat in the first-class heat exchanger is discharged in mixed alcohol recovery tower.
Preferably, the temperature of two grades of preheatings is 100～120 DEG C.
Preferably, the heat of the secondary heat exchanger comes from alcohol-water separation tower.
Preferably, the Waste Water Treatment is waste water circulation pond, and waste water circulation pond is directly connected to original production system
Industrial water.
Preferably, it is provided with the stripper, methanol rectifying tower and Ethanol rectification column without focus isothermal fixed bed reaction
Device.
Preferably, kettle liquid pump is installed in the stripper.
The technological process that the present invention is provided is simple, and cost of investment is low, physico using the mixed alkoxide component feature of industry and single methanol
Learn property to separate single methanol from the mixed alcohol of industry, applying makes stripper and rectifying column temperature control be situated between without focus isothermal fixed bed reactors
Matter is uniformly distributed, and temperature is impartial, without the need for high-temperature feeding, improves selectivity and the separation efficiency of rectification, makes the single methanol that isolates pure
Degree is high, and the organic residue in the single methanol and fuel tank isolated can improve the mixed alcohol value-added content of product of industry with for sale,
The harmful or gas with foreign flavor produced in separation process is processed, and the heat of mixed alcohol recovery tower and organic residue is entered
Row is recycled, and can reduce production cost, energy saving, the effect of environmental protection.
Description of the drawings
Fig. 1 is a kind of flow chart of the detached technological process of mixed alcohol of industry proposed by the present invention.
Specific embodiment
The present invention is further explained with reference to specific embodiment.
A kind of detached technological process of mixed alcohol of industry, comprises the following steps：
S1：Mixed for industry alcohol is stored in the mixed alcohol storage tank of industry, the mixed alcohol of industry is removed in the mixed alcohol of industry through raw material filter
Raw material impurity, the mixed alcohol of industry after filtering enter first-class heat exchanger and carry out one-level preheating, and preheating temperature is 60～80 DEG C；
S2：Secondary heat exchanger is sent into through the mixed alcohol of the industry after one-level preheating carries out two grades of preheatings, and the temperature of two grades of preheatings
For 100～120 DEG C；
S3：Alcohol-water separation tower is sent into through the mixed alcohol of the industry after two grades of preheatings, and isolates the moisture in the mixed alcohol of industry, separate
The moisture for going out sends into the waste water circulation pond in Waste Water Treatment after cooling, and by process after waste water be used for original production system
Production in, transfer heat to the second heat exchanger while alcohol-water separation for two grades of preheatings of industrial mixed alcohol, removing water
Industry after point mixes the concentrated rear stripper of sending into of alcohol and is processed, and is harmful to or gas with foreign flavor enters tower top and divides flow container, through process
Boiler combustion is sent into afterwards, and the heavy medium in the mixed alcohol of industry is entered in the bottom of towe reboiling tower added with conduction oil, heated by heavy
Medium is sent back in stripper；
S4：Purify postindustrial mixed alcohol and send into mixed alcohol recovery tower, single methanol is carried out with organic residue through the effect of catalyst
Separate, and heavy medium is delivered in the bottom of towe reboiling tower added with conduction oil, heated send heavy medium back to mixed alcohol recovery tower
In, it is back to standby in return tank of top of the tower after the cooling of tower top air cooler through mixing the single methanol isolated of alcohol recovery tower, isolates
Heat is used for heat in organic residue the one-level preheating of the mixed alcohol of industry, the organic residue after cooling through first-class heat exchanger
It is recycled in fuel tank；
S5：The single methanol isolated enters methanol rectifying tower, and the temperature for control methanol rectifying tower is 63～67 DEG C, by methanol from
In single methanol, rectification goes out, and is stored in methanol tank, isolates the single methanol after methanol and sends into ethanol through methanol rectifying tower floss hole
Rectifying column, the temperature for controlling Ethanol rectification column is 76～83 DEG C, and by ethanol, from single methanol, rectification goes out, and is stored in ethanol storage tank
In, remaining organic residue is recycled in fuel tank, that is, complete the detached technological process of the whole mixed alcohol of industry.
In the present invention, it is provided with the stripper, methanol rectifying tower and Ethanol rectification column anti-without focus isothermal fixed bed
Answer device.
In the present invention, kettle liquid pump is installed in the stripper.
The technological process that the present invention is provided is simple, and cost of investment is low, physico using the mixed alkoxide component feature of industry and single methanol
Learn property to separate single methanol from the mixed alcohol of industry, applying makes stripper and rectifying column temperature control be situated between without focus isothermal fixed bed reactors
Matter is uniformly distributed, and temperature is impartial, without the need for high-temperature feeding, improves selectivity and the separation efficiency of rectification, makes the single methanol that isolates pure
Degree is high, and the organic residue in the single methanol and fuel tank isolated can improve the mixed alcohol value-added content of product of industry with for sale,
The harmful or gas with foreign flavor produced in separation process is processed, and the heat of mixed alcohol recovery tower and organic residue is entered
Row is recycled, and can reduce production cost, energy saving, the effect of environmental protection.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept equivalent or change in addition, should all be included within the scope of the present invention.
Claims (8)
1. the detached technological process of a kind of mixed alcohol of industry, it is characterised in that comprise the following steps：
S1：Mixed for industry alcohol is stored in the mixed alcohol storage tank of industry, the mixed alcohol of industry removes the raw material in the mixed alcohol of industry through raw material filter
Impurity, the mixed alcohol of industry after filtering enters first-class heat exchanger carries out one-level preheating；
S2：Secondary heat exchanger is sent into through the mixed alcohol of the industry after one-level preheating carries out two grades of preheatings；
S3：Alcohol-water separation tower is sent into through the mixed alcohol of the industry after two grades of preheatings, and isolates the moisture in the mixed alcohol of industry, isolate
Moisture sends into Waste Water Treatment after cooling, removes the concentrated rear stripper of sending into of the mixed alcohol of the industry after moisture and is processed,
Harmful or gas with foreign flavor enters tower top and divides flow container, sends into boiler combustion after process, and the heavy medium in the mixed alcohol of industry is entered and added
Have in the bottom of towe reboiling tower of conduction oil, heated heavy medium is sent back in stripper；
S4：Purify postindustrial mixed alcohol and send into mixed alcohol recovery tower, single methanol is separated with organic residue through the effect of catalyst,
And heavy medium is delivered in the bottom of towe reboiling tower added with conduction oil, heated heavy medium is sent back in mixed alcohol recovery tower, pass through
The single methanol that mixed alcohol recovery tower is isolated is back to standby in return tank of top of the tower again after the cooling of tower top air cooler, and that isolated is organic
Residue is recycled in fuel tank after first-class heat exchanger cooling；
S5：The single methanol that isolates enters methanol rectifying tower, and the temperature for controlling methanol rectifying tower is 63～67 DEG C, by methanol from single methanol
Middle rectification goes out, and is stored in methanol tank, isolates the single methanol after methanol and sends into ethanol rectification through methanol rectifying tower floss hole
Tower, the temperature for controlling Ethanol rectification column is 76～83 DEG C, and by ethanol, from single methanol, rectification goes out, and is stored in ethanol storage tank, remains
Remaining organic residue is recycled in fuel tank, that is, complete the detached technological process of the whole mixed alcohol of industry.
2. a kind of detached technological process of mixed alcohol of industry according to claim 1, it is characterised in that the one-level preheating temperature
Spend for 60～80 DEG C.
3. a kind of detached technological process of mixed alcohol of industry according to claim 1, it is characterised in that the first-class heat exchanger
In the organic residue discharged in mixed alcohol recovery tower of origin of heat.
4. the detached technological process of a kind of mixed alcohol of industry according to claim 1, it is characterised in that two grades of preheatings
Temperature is 100～120 DEG C.
5. a kind of detached technological process of mixed alcohol of industry according to claim 1, it is characterised in that the secondary heat exchanger
Heat come from alcohol-water separation tower.
6. a kind of detached technological process of mixed alcohol of industry according to claim 1, it is characterised in that the wastewater treatment system
Unite as waste water circulation pond, and waste water circulation pond is directly connected to the industrial water of original production system.
7. the detached technological process of a kind of mixed alcohol of industry according to claim 1, it is characterised in that the stripper, first
It is provided with alcohol rectifying column and Ethanol rectification column without focus isothermal fixed bed reactors.
8. the detached technological process of a kind of mixed alcohol of industry according to claim 1, it is characterised in that pacify in the stripper
Kettle liquid pump is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610509846.7A CN106495987A (en) | 2016-07-03 | 2016-07-03 | A kind of detached technological process of mixed alcohol of industry |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610509846.7A CN106495987A (en) | 2016-07-03 | 2016-07-03 | A kind of detached technological process of mixed alcohol of industry |
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| CN106495987A true CN106495987A (en) | 2017-03-15 |
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| CN201610509846.7A Pending CN106495987A (en) | 2016-07-03 | 2016-07-03 | A kind of detached technological process of mixed alcohol of industry |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112679313A (en) * | 2020-12-25 | 2021-04-20 | 国家能源集团宁夏煤业有限责任公司 | Mixed alcohol separation system and mixed alcohol separation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1696082A (en) * | 2005-04-01 | 2005-11-16 | 上海兖矿能源科技研发有限公司 | Method for treating water reacted from Fischer-Tropsch synthesis |
| CN103467257A (en) * | 2013-08-22 | 2013-12-25 | 中科合成油技术有限公司 | Dehydration recycling method for non-acid oxygen-bearing organic matter in Fischer-Tropsch synthetic water |
| CN104692572A (en) * | 2014-12-11 | 2015-06-10 | 内蒙古伊泰煤制油有限责任公司 | Separation and purification treatment system and method for indirect liquefied coal-based Fischer Tropsch synthetic water |
| CN105669377A (en) * | 2016-01-22 | 2016-06-15 | 北京凯文特科技有限公司 | Technique for separating mixed alcohol |
-
2016
- 2016-07-03 CN CN201610509846.7A patent/CN106495987A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1696082A (en) * | 2005-04-01 | 2005-11-16 | 上海兖矿能源科技研发有限公司 | Method for treating water reacted from Fischer-Tropsch synthesis |
| CN103467257A (en) * | 2013-08-22 | 2013-12-25 | 中科合成油技术有限公司 | Dehydration recycling method for non-acid oxygen-bearing organic matter in Fischer-Tropsch synthetic water |
| CN104692572A (en) * | 2014-12-11 | 2015-06-10 | 内蒙古伊泰煤制油有限责任公司 | Separation and purification treatment system and method for indirect liquefied coal-based Fischer Tropsch synthetic water |
| CN105669377A (en) * | 2016-01-22 | 2016-06-15 | 北京凯文特科技有限公司 | Technique for separating mixed alcohol |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112679313A (en) * | 2020-12-25 | 2021-04-20 | 国家能源集团宁夏煤业有限责任公司 | Mixed alcohol separation system and mixed alcohol separation method |
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Application publication date: 20170315 |