CN109053416A - Furfural exhaust gas produces sodium acetate new process - Google Patents
Furfural exhaust gas produces sodium acetate new process Download PDFInfo
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- CN109053416A CN109053416A CN201811008716.0A CN201811008716A CN109053416A CN 109053416 A CN109053416 A CN 109053416A CN 201811008716 A CN201811008716 A CN 201811008716A CN 109053416 A CN109053416 A CN 109053416A
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/41—Preparation of salts of carboxylic acids
- C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
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Abstract
The invention belongs to furfural technical fields, propose furfural exhaust gas and produce sodium acetate new process, after the steps include: to furfural hydrolysis, by after hydrolysis exhaust gas and furfural dregs be discharged into gas-slag separation device together；Furfural dregs are sent to boiler combustion, exhaust gas send to off-gas buffer tank and stores, exhaust gas sucks neutralization reactor, sodium permanganate is added, it is 6 that lye, which is added, and is neutralized to PH, gas passes through alkali liquid washing qualified discharge, liquid is sent to decolorizer, liquid squeezes into filter by pump after being decolourized with decolorising agent, filter out impurity, impurity is sent into boiler combustion, filtering rear decoloring liquid is squeezed into evaporator and is concentrated, the concentrate being concentrated is put into crystallizing tank and is crystallized, centrifuge separation, obtain sodium acetate, packaging, mother liquor after crystallization is sent to mother liquor holding tank, it is squeezed into decolorizer and is reused by pump.The present invention solves in furfural exhaust gas in the prior art the problems such as acetic acid direct emission pollutes environment, unhealthful, waste of resource, and furfural waste gas treatment process is not perfect.
Description
Technical field
The invention belongs to furfural technical field, it is related to a kind of furfural exhaust gas and produces sodium acetate new process.
Background technique
Furfural is a kind of multiduty Organic Chemicals, is mainly used for: synthetic resin, synthetic fibers, synthetic rubber, stone
Oily refining, steel, pharmacy, papermaking, reprocessing furfuryl alcohol etc., it is widely used, it is a kind of basic chemical industry material of no substitute.
Furfural is mainly using corncob as raw material, and heating pressurization makes to contain in corncob under acidic catalyst (sulfuric acid) effect
Pentosan hydrolysis generate pentose, then dehydration of pentoses be made furfural.Furfural is cyclized by dehydration of pentoses, and pentose can be by planting
Pentosan contained in fibres hydrolyzes to obtain, and pentosan is the sugared acid anhydride (C of pentose5H8O4) n, pentose is obtained after hydrolysis, then
Under the action of an acid, the H2O for sloughing 3 molecules forms furfural.While hydrolysis produces furfural, in the lignin in fibrous raw material
Acetyl group, the methoxyl group contained, which is broken, resolves into acetic acid, and acetic acid is 170kg/t furfural.
In current China furfural production, furfural dregs are directly discharged into slag canopy together with exhaust gas, and furfural dregs will transport from slag canopy, cause
The bad sealing of slag canopy, exhaust gas mainly use activated carbon adsorption, but in exhaust gas are mainly vapor, and active carbon replacement is ordinary, warp
It in Ji and is not suitable for, the gas sampling in furfural production is difficult, and exhaust-gas treatment is at high cost, economical improper.In furfural production, vinegar
Exhaust gas discharge when acid is generally as deslagging: first the smell is awful in entire power houses workshop, to operator's health
Have a great impact；Second effective component is discharged in air in exhaust gas, is caused the waste of resource, is reduced the performance of enterprises；Three
Then most of gas and part slag dirt are diffused into the residence that polluted environment, influence near factory serious in atmosphere by gas vent
The physical and mental health of the people and villager, common people's strong reaction.
The processing unit of exhaust gas, chaff in a kind of furfural production of disclosure of the invention that number of patent application is 2015106924953
There is charging tower, hydrolysis tower, primary distillation tower, neutralization reactor, rectifying column in aldehyde production line；Exhaust gas passes through dust hood A and dust hood B
It absorbs, the exhaust gas of absorption introduces level-one neutralization reactor, the tail that level-one neutralization reactor excludes by air-introduced machine by public air duct
Gas enters back into second level neutralization reactor, and the tower bottom solution of level-one neutralization reactor and second level neutralization reactor is collected into liquid storage together
Tower, washing water reach a certain concentration and drain into the primary distillation tower of preceding working procedure.The device has following defects that in use
(1) exhaust gas is not handled the off-gas liquid solution of outflow, the effective component in exhaust gas after condensation forms solution from tower bottom outflow
Do not make full use of；(2) adsorbing powder dust in exhaust gas is not handled in water；(3) unreasonable, the aqueous solution reflux of concentrate is designed
To primary distillation tower, aqueous solution is in neutrality, and can be had an impact to furfural production.
Summary of the invention
The present invention proposes that a kind of furfural exhaust gas produces sodium acetate new process, solves acetic acid in furfural exhaust gas in the prior art
The problems such as direct emission pollutes environment, unhealthful, waste of resource, and furfural waste gas treatment process is not perfect.
The technical scheme of the present invention is realized as follows:
A kind of furfural exhaust gas produces sodium acetate new process, comprising the following steps:
S1, to furfural hydrolysis after, by after hydrolysis exhaust gas and furfural dregs be discharged into gas-slag separation device together；Furfural dregs are sent
To boiler combustion, exhaust gas send to off-gas buffer tank and stores；
S2, the exhaust gas in step S1 is sucked into neutralization reactor, it is 6 that lye, which is added, and is neutralized to PH, neutralization reactor temperature
Control is at 60 DEG C hereinafter, gas qualified discharge after alkali liquid washing, liquid are sent to decolorizer；
S3, the liquid in step S2 is subjected to decolorization with decolorising agent after liquid by pump squeeze into filter, filter out
Impurity, impurity are sent into boiler combustion；
S4, it step S3 filtered fluid is squeezed into evaporator is concentrated；
S5, it the step S4 concentrate being concentrated is put into crystallizing tank is crystallized, be centrifugated, obtain sodium acetate,
Packaging；
S6, the mother liquor after step S5 crystallization is sent to mother liquor holding tank, is squeezed into decolorizer by pump and carries out repeating step S3
~S6.
As further technical solution, step S2 are as follows: the exhaust gas in step S1 is sucked into neutralization reactor, it is anti-to neutralizing
Answer and sodium permanganate be added in device, be added lye be neutralized to PH be 6, neutralization reactor temperature control at 60 DEG C hereinafter, liquid send to
Decolorizer.
As further technical solution, bleaching agent activated carbon described in step S3.
As further technical solution, the concentrated solution density being concentrated to get described in step S4 is 1.25.
As further technical solution, crystallization time described in step S5 is 24 hours.
A kind of furfural exhaust gas produces sodium acetate new process equipment, including sequentially connected gas-slag separation device, off-gas buffer tank,
Neutralization reactor, decolorizer, filter, evaporator, crystallizing tank, centrifuge, mother liquor holding tank, the off-gas buffer tank and it is described in
It is also connected with blower between reactor, water pump, the filter are connected between the neutralization reactor and the decolorizer
Water pump is connected between the evaporator, the mother liquor holding tank is also connect with the decolorizer, the gas-slag separation device and water
Pot connection is solved, is provided with circulating water cooling device in the neutralization reactor.
The present invention is using principle and has the beneficial effect that
1, using after present invention process technology governance furfural exhaust gas can qualified discharge, solve furfural exhaust gas direct emission
To air and caused by pollution environment, administer difficult technical problem, meet the development trend of environmental protection.
2, sodium acetate, every production can be proposed from exhaust gas by producing sodium acetate new process using a kind of furfural exhaust gas of the present invention
1 ton of furfural can extract 385kg sodium acetate, and 10000 tons of furfural production enterprise can produce 3850 tons of sodium acetate every year per year, can be real
Existing 577.5 ten thousand yuan of the output value, it can be achieved that 192.5 ten thousand yuan of profit, realizes production process gas recycling benefit based on 500 yuan of profit per ton
With and obtain byproduct, increase enterprise income, can make full use of the efficient resource in exhaust gas, turn waste into wealth, to bring
Good economic benefit.
3, in the present invention, sodium permanganate is added in neutralization reactor, acetone, acetaldehyde are by sodium permanganate in acid condition
Oxidation generates acetic acid, and acetic acid and lye neutralization reaction generate sodium acetate, not only increases the yield of sodium acetate, while effective right
Acetone, acetaldehyde in exhaust gas are recycled, and are greatly reduced the content of the pernicious gases such as acetone, the acetaldehyde in exhaust gas, are filled
Divide using the efficient resource in exhaust gas, turns waste into wealth.
4, the plant investment that a kind of furfural exhaust gas of the invention produces sodium acetate is few, and easy to operate, operating cost is low, improves
The working environment of plant personnel, is conducive to keep the safety in production, and has good practicability to existing furfural mill, suitable popularization makes
With.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is process flow chart of the invention；
In figure: 1- hydrolyzer, 2- gas-slag separation device, 3- off-gas buffer tank, 4- neutralization reactor, 5- decolorizer, 6- filtering
Machine, 7- evaporator, 8- crystallizing tank, 9- centrifuge, 10- mother liquor holding tank, 11- blower, 12- water pump.
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.
As shown in Figure 1, a kind of furfural exhaust gas proposed by the present invention produces the device of sodium acetate, including sequentially connected gas slag
Separator, off-gas buffer tank, neutralization reactor, decolorizer, filter, evaporator, crystallizing tank, centrifuge, mother liquor holding tank, exhaust gas
Be also connected with blower between surge tank and neutralization reactor, be connected with water pump between neutralization reactor and decolorizer, filter with
Water pump is connected between evaporator, mother liquor holding tank is also connect with decolorizer, and gas-slag separation device is connect with hydrolyzer, neutralization reactor
Inside it is provided with circulating water cooling device.
Above-mentioned furfural exhaust gas produces the new process of sodium acetate, comprising the following steps:
S1, to furfural hydrolysis after, by after hydrolysis exhaust gas and furfural dregs be discharged into gas-slag separation device together；Furfural dregs are sent
To boiler combustion, exhaust gas send to off-gas buffer tank and stores；
S2, the exhaust gas in step S1 is sucked into neutralization reactor, sodium permanganate is added into neutralization reactor, lye is added
Being neutralized to PH is 6, and gas is up to standard after alkali liquid washing, the processing of low temperature plasma waste gas treatment device, is vented by 25m high
Cylinder discharge, liquid are sent to decolorizer；
S3, the liquid in step S2 is decolourized with decolorising agent after liquid by pump squeeze into filter, filter out impurity,
Impurity is sent into boiler combustion, and decolorising agent is active carbon；
S4, step S3 filtering rear decoloring liquid is squeezed into evaporator and is concentrated, being concentrated to density is 1.25；
S5, it the step S4 concentrate being concentrated is put into crystallizing tank crystallizing, crystallization is centrifuged after 24 hours,
Sodium acetate is obtained, is packed；
S6, the mother liquor after step S5 crystallization is sent to mother liquor holding tank, is squeezed into decolorizer by pump and carries out repeating step S3
~S6.
Ambient Air Quality Situation detection
Detection time: continuous detection 7 days
Detect the frequency: sulfuric acid mist, methanol, acetone, acetaldehyde, furfural, 1 hour average concentration of non-methane total hydrocarbons detect 4 daily
It is secondary, when detection time is respectively Beijing time 02:00,8:00,14:00 and 20:00,1 hour average concentration each sampling time
No less than 45min.
Detection method: being detected by detection method specified in " ambient air quality " (GB3095-2012), is had
Body is shown in Table 1.
1 gas detection method of table
Gas detection the result is as follows:
Table 2 is gas generated before handling: kg/h
| Pollution sources | Sulfuric acid mist | Methanol | Acetic acid | Acetone | Acetaldehyde | Furfural | Non-methane total hydrocarbons |
| Hydrolysis kettle empties exhaust gas | 0.03 | 0.003 | 1.3 | 0.002 | 0.00016 | 0.006 | 0.01 |
| Hydrolysis kettle deslagging exhaust gas | 0.26 | 0.16 | 180 | 0.075 | 0.008 | 0.36 | 0.45 |
| It is total | 0.29 | 0.163 | 181.3 | 0.077 | 0.00816 | 0.366 | 0.46 |
Discharge amount after the processing of table 3: kg/h
| Pollution sources | Sulfuric acid mist | Methanol | Acetic acid | Acetone | Acetaldehyde | Furfural | Non-methane total hydrocarbons |
| Hydrolysis kettle empties exhaust gas | 0.0006 | 0.00015 | 0.00001 | 0.0001 | 0.000001 | 0.0003 | 0.0003 |
| Hydrolysis kettle deslagging exhaust gas | 0.0005 | 0.0003 | 0.0003 | 0.0002 | 0.000005 | 0.0006 | 0.0008 |
| It is total | 0.0011 | 0.00045 | 0.00031 | 0.0003 | 0.000006 | 0.0009 | 0.0011 |
It can be seen that by the data comparison of table 2, table 3 and produced at the new process of sodium acetate by furfural exhaust gas of the present invention
Each harmful gas component concentration significantly reduces in exhaust gas after reason: sulfuric acid mist total amount reduces 99.6%, and methanol total amount reduces
99.7%, acetic acid total amount reduces 99.9998%, and acetone total amount reduces 99.6%, and acetaldehyde total amount reduces 99.9%, furfural
Total amount reduces 99.6, and non-methane total hydrocarbons total amount reduces 99.8%, has reached discharge standard.Acetone total amount that treated is reduced
99.6%, acetaldehyde total amount reduces 99.9%, illustrates in acid condition, and acetone, acetaldehyde are aoxidized by sodium permanganate generates vinegar
Acid in acetic acid and lye and generation sodium acetate, not only increases the yield of sodium acetate, at the same effectively in exhaust gas acetone,
Acetaldehyde is recycled, and is greatly reduced the content of the pernicious gases such as acetone, the acetaldehyde in exhaust gas, is made full use of in exhaust gas
Efficient resource is turned waste into wealth；Treated, and acetic acid total amount reduces 99.9998%, and the acetic acid in exhaust gas is illustrated sufficiently to neutralize
Output sodium acetate brings byproduct while administering exhaust emission, to produce very big economic benefit.
Sodium acetate finished product weighs: the sodium acetate total amount that detection 1 ton of furfural of every production is extracted from exhaust gas detects 5 times altogether；
The sodium acetate total amount that the 1 ton of furfural of every production of table 4 is extracted from exhaust gas
| Project | 1st time | 2nd time | 3rd time | The 4th | The 5th | Average value |
| Sodium acetate | 383.9kg | 386.3kg | 384.6kg | 384.7kg | 385.5kg | 385.0kg |
By 5 detection datas in table 4 it is found that sodium acetate new process is produced using a kind of furfural exhaust gas of the present invention can
It is proposed that sodium acetate, 1 ton of furfural of every production about can extract sodium acetate 385kg from exhaust gas from exhaust gas, per year 10000 tons of chaff
Aldehyde manufacturing enterprise can produce 3850 tons of sodium acetate every year, it can be achieved that 577.5 ten thousand yuan of the output value based on 500 yuan of profit per ton, it can be achieved that benefit
Moisten 192.5 ten thousand yuan, realize the Gas recovery of production process and obtain byproduct, increases enterprise's income, it can be abundant
Using the efficient resource in exhaust gas, turn waste into wealth, to bring good economic benefit.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of furfural exhaust gas produces sodium acetate new process, which comprises the following steps:
S1, to furfural hydrolysis after, by after hydrolysis exhaust gas and furfural dregs be discharged into gas-slag separation device together；Furfural dregs are sent to pot
Furnace burning, exhaust gas send to off-gas buffer tank and store；
S2, the exhaust gas in step S1 is sucked into neutralization reactor, it is 6 that lye, which is added, and is neutralized to PH, the control of neutralization reactor temperature
At 60 DEG C hereinafter, liquid is sent to decolorizer；
S3, the liquid in step S2 is subjected to decolorization with decolorising agent after liquid by pump squeeze into filter, filter out impurity,
Impurity is sent into boiler combustion；
S4, it step S3 filtered fluid is squeezed into evaporator is concentrated；
S5, the step S4 concentrate being concentrated is put into crystallizing tank, temperature be 50-55 DEG C, vacuum degree be -0.01~-
It is crystallized under conditions of 0.02MPa, is centrifuged after the completion of crystallization, obtains sodium acetate, packed；
S6, the mother liquor after step S5 crystallization is sent to mother liquor holding tank, is squeezed into decolorizer by pump and carries out repeating step S3~S6.
2. a kind of furfural exhaust gas according to claim 1 produces sodium acetate new process, which is characterized in that step S2 are as follows: will
Exhaust gas in step S1 sucks neutralization reactor, and sodium permanganate is added into neutralization reactor, and it is 6 that lye, which is added, and is neutralized to PH,
The control of neutralization reactor temperature is at 60 DEG C hereinafter, liquid is sent to decolorizer.
3. a kind of furfural exhaust gas according to claim 1 produces sodium acetate new process, which is characterized in that described in step S3
Decolorising agent is active carbon.
4. a kind of furfural exhaust gas according to claim 1 produces sodium acetate new process, which is characterized in that described in step S4
The concentrated solution density being concentrated to get is 1.25.
5. a kind of furfural exhaust gas according to claim 1 produces sodium acetate new process, which is characterized in that described in step S5
Crystallization time is 24 hours.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111423322A (en) * | 2020-05-12 | 2020-07-17 | 无锡阳山生化有限责任公司 | Sodium acetate preparation method and energy-saving preparation system thereof |
| CN114349629A (en) * | 2021-02-05 | 2022-04-15 | 广西森洲生物技术有限公司 | System and process for recycling sodium acetate in grease by-product |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1474158A1 (en) * | 1986-10-21 | 1989-04-23 | Институт химии древесины АН ЛатвССР | Method of producing calcium acetate |
| CN103043843A (en) * | 2012-12-28 | 2013-04-17 | 山东金缘生物科技有限公司 | Device and method for extracting sodium acetate from tower bottom wastewater of primary tower in furfural production |
| CN106365984A (en) * | 2016-11-08 | 2017-02-01 | 山西省高平化工有限公司 | Method and system for recovering sodium acetate from tail gas of furfural residue boiler |
| CN106800506A (en) * | 2016-12-30 | 2017-06-06 | 杭州垚信生物科技有限公司 | A kind of preparation method of anhydrous sodium acetate |
| CN107602373A (en) * | 2017-09-13 | 2018-01-19 | 山西恒德益生物科技有限公司 | A kind of method that sodium acetate is extracted from furfural production waste water |
-
2018
- 2018-08-30 CN CN201811008716.0A patent/CN109053416A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1474158A1 (en) * | 1986-10-21 | 1989-04-23 | Институт химии древесины АН ЛатвССР | Method of producing calcium acetate |
| CN103043843A (en) * | 2012-12-28 | 2013-04-17 | 山东金缘生物科技有限公司 | Device and method for extracting sodium acetate from tower bottom wastewater of primary tower in furfural production |
| CN106365984A (en) * | 2016-11-08 | 2017-02-01 | 山西省高平化工有限公司 | Method and system for recovering sodium acetate from tail gas of furfural residue boiler |
| CN106800506A (en) * | 2016-12-30 | 2017-06-06 | 杭州垚信生物科技有限公司 | A kind of preparation method of anhydrous sodium acetate |
| CN107602373A (en) * | 2017-09-13 | 2018-01-19 | 山西恒德益生物科技有限公司 | A kind of method that sodium acetate is extracted from furfural production waste water |
Non-Patent Citations (4)
| Title |
|---|
| 唐有根等: "《农副化工产品生产技术》", 31 July 1998, 中南工业大学出版社 * |
| 边照阳等: "《QuEChERS技术及应用》", 30 November 2017, 中国轻工业出版社 * |
| 郝月等: "《普通化学》", 31 March 2014, 吉林大学出版社 * |
| 陈冠荣等: "《化工百科全书（第2卷）》", 31 December 1991, 化学工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111423322A (en) * | 2020-05-12 | 2020-07-17 | 无锡阳山生化有限责任公司 | Sodium acetate preparation method and energy-saving preparation system thereof |
| CN114349629A (en) * | 2021-02-05 | 2022-04-15 | 广西森洲生物技术有限公司 | System and process for recycling sodium acetate in grease by-product |
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Application publication date: 20181221 |