CN209397145U - A kind of consersion unit of methanol production formaldehyde - Google Patents
A kind of consersion unit of methanol production formaldehyde Download PDFInfo
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- CN209397145U CN209397145U CN201822251670.7U CN201822251670U CN209397145U CN 209397145 U CN209397145 U CN 209397145U CN 201822251670 U CN201822251670 U CN 201822251670U CN 209397145 U CN209397145 U CN 209397145U
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Abstract
The utility model discloses a kind of consersion units of methanol production formaldehyde, including air processor, methyl alcohol process device and exhaust gas processing device in parallel, the air processor, methyl alcohol process device and exhaust gas processing device are connect with mixer, the mixer connects oxidation reactor, the oxidation reactor connects drum, the methyl alcohol process device is made of sequentially connected crude carbinol slot, methanol purification device, purifying methanol slot, explosion-proof pump, flowmeter, methanol evaporator, is filled with adsorbent Si-Al molecular sieve in the crude carbinol purification device；Purifying methanol groove top portion is provided with gas vent, and the gas vent connects methanol gas accumulator tank, and the methanol gas accumulator tank is connected to mixer；Device design rationally, solves the problems, such as that methanol evaporator is easy fouling and damage, has saved electric energy, reduced overall cost, economic and environment-friendly, finished product formaldehyde purity is high, and methanol content is low.
Description
Technical field
A kind of consersion unit of methanol production formaldehyde of the utility model, belongs to formaldehyde production device technical field.
Background technique
Formaldehyde is simplest aldehyde in aliphatic series, and chemical property is very active, can synthesize multiple compounds.It is weight
One of basic chemical raw materials wanted, are widely used in the fields such as chemical industry, medicine, dyestuff and agricultural and industrially produce formaldehyde mainly adopting
With methanol oxidizing process and natural gas direct oxidation method.
Impurities are more in crude carbinol used in the process of methanol oxidizing process production formaldehyde, not only influence product formaldehyde
Purity needs to pre-process methanol in actual production the problem of also causing the easy fouling of methanol evaporator, damage, so that
Purity in methanol is higher, allows it to the formaldehyde for producing higher degree.
Utility model content
To solve the shortcomings of the prior art, the utility model discloses a kind of consersion unit of methanol production formaldehyde,
The device design rationally, solve the problems, such as methanol evaporator be easy fouling and damage, saved electric energy, reduce integral into
This, economic and environment-friendly, finished product formaldehyde is with high purity, and methanol content is low.
The utility model is achieved through the following technical solutions:
A kind of consersion unit of methanol production formaldehyde, including air processor, methyl alcohol process device and tail gas in parallel
Processing unit, the air processor, methyl alcohol process device and exhaust gas processing device are connect with mixer, the mixer
Oxidation reactor is connected, the oxidation reactor connects drum, and the methyl alcohol process device is by sequentially connected crude carbinol slot, first
Alcohol purification device, purifying methanol slot, explosion-proof pump, flowmeter, methanol evaporator are constituted, and are filled in the crude carbinol purification device
Adsorbent Si-Al molecular sieve；Purifying methanol groove top portion is provided with gas vent, and the gas vent connects methanol gas accumulator tank, institute
State methanol gas accumulator tank connection mixer；
The oxidation reactor includes reaction chamber, and the reaction cavity outer wall is around setting electric heater unit, the electric heating
Insulating layer is set outside device；
The drum is sequentially connected level-one formaldehyde absorbing tower, second level formaldehyde absorbing tower, three-level formaldehyde absorbing tower and rectifying column,
Produced Liquid after the three-level formaldehyde absorbing tower absorbs enters rectifying column rectifying, and the methanol that rectifying column obtains introduces crude carbinol slot；
The three-level formaldehyde absorbing tower tail gas is passed through exhaust gas processing device.
Fire-retardant filter is additionally provided between the mixer and oxidation reactor.
The gas vent is provided with vent valve.
Temperature sensor and barometer are additionally provided in the reaction chamber.
The exhaust gas processing device includes tail gas tank, and the tail gas tank is sequentially connected exhaust fan and heater exhaust gas, institute
State heater exhaust gas connection mixer.
The air processor includes air blower, and the air blower connects air filter, the air filtration
Device pipeline connects air preheater, and the air preheater pipeline connects mixer.
The utility model has the advantages that compared with prior art
Pass through three-level formaldehyde absorbing tower using the utility model device product formaldehyde, alcohol content reduces in finished product formaldehyde, mentions
High product quality, the Produced Liquid after the absorption of three-level formaldehyde absorbing tower are sent into rectifying column finishing, the refined methanol processed
Recycling, can reduce methanol consumption.
First carries out purification before methanol evaporation, reduces wherein impurity content, solve methanol evaporator be easy fouling and
The problem of damage, has saved electric energy, reduces overall cost, economic and environment-friendly, manufactured finished product formaldehyde purity is high, methanol content
It is low.
Detailed description of the invention
The utility model is described further with reference to the accompanying drawing.
FIG. 1 is a schematic structural view of the utility model.
Specific embodiment
The utility model is described in further detail combined with specific embodiments below, but the protection of the utility model
Range is not limited to these examples, it is all be included in without departing substantially from the change of the utility model design or equivalent substitute it is practical
Within novel protection scope.
Embodiment 1
A kind of consersion unit of methanol production formaldehyde, including air processor, methyl alcohol process device and tail gas in parallel
Processing unit, the air processor, methyl alcohol process device and exhaust gas processing device are connect with mixer 1, the mixing
Device connects oxidation reactor 2, and the oxidation reactor connects drum 3；
The methyl alcohol process device is by sequentially connected crude carbinol slot 4, methanol purification device 5, purifying methanol slot 6, explosion-proof
Pump 7, flowmeter 8, methanol evaporator 9 are constituted, and are filled with adsorbent Si-Al molecular sieve in the methanol purification device 5；It is described net
Change and be provided with gas vent 10 at the top of methanol slot 6, the gas vent 10 connects methanol gas accumulator tank 11, the methanol gas accumulator tank 11
It is connected to mixer 1；
The oxidation reactor 2 includes reaction chamber 21, and 21 outer wall of reaction chamber is described around setting electric heater unit 22
Insulating layer 23 is set outside electric heater unit 22；
The outlet of drum 3 is sequentially connected level-one formaldehyde absorbing tower 31, second level formaldehyde absorbing tower 32, three-level formaldehyde absorbing tower
33 and rectifying column 34, the Produced Liquid after the three-level formaldehyde absorbing tower 33 absorbs enters 34 rectifying of rectifying column, and rectifying column 34 obtains
Methanol introduce crude carbinol slot 4；The tail gas of the three-level formaldehyde absorbing tower 33 is passed through exhaust gas processing device.
Fire-retardant filter 12 is additionally provided between the mixer 1 and oxidation reactor 2.
The gas vent 10 is provided with vent valve 13.
Temperature sensor 24 and barometer 25 are additionally provided in the reaction chamber 21.
The exhaust gas processing device includes tail gas tank 35, and the tail gas of the three-level formaldehyde absorbing tower 33 is passed through tail gas tank 35,
The tail gas tank 35 is sequentially connected exhaust fan 36 and heater exhaust gas 37, and the heater exhaust gas 37 connects mixer 1.
The air processor includes air blower 14, and the air blower 14 connects air filter 15, the sky
15 pipeline of air filter connects air preheater 16, and 16 pipeline of air preheater connects mixer 1.
The course of work of the utility model is as follows:
The methanol and the recycling of three-level formaldehyde absorption tower top that refined methanol, rectifying column recycling by methanol evaporator heating come come
Exhaust gas and air respectively enter and uniformly mixed in mixer 1, obtain gaseous mixture；Uniformly mixed gaseous mixture enters oxidation
Reactor carries out the oxidation reaction of methanol in oxidation reactor, obtains reaction gas；
Reaction gas sequentially enters level-one formaldehyde absorbing tower, second level formaldehyde absorbing tower and three-level formaldehyde absorbing tower and is absorbed,
The desalted water that formaldehyde in reaction gas is sprayed by tower top absorbs, and arranges without absorbed exhaust gas from three-level formaldehyde absorption column overhead
Out, and enter tail gas tank, return in mixer and recycled using exhaust fan and heater exhaust gas；From three-level formaldehyde
The Produced Liquid of absorbing tower bottom outflow squeezes into rectifying column and carries out rectifying, and obtaining rectifying product is the higher methanol of purity, by the first
Alcohol introduces crude carbinol slot, participates in oxidation reaction again.
Pass through three-level formaldehyde absorbing tower using the utility model device product formaldehyde, alcohol content reduces in finished product formaldehyde, mentions
High product quality, the Produced Liquid after the absorption of three-level formaldehyde absorbing tower are sent into rectifying column finishing, the refined methanol processed
Recycling, can reduce methanol consumption.
First carries out purification before methanol evaporation, reduces wherein impurity content, solve methanol evaporator be easy fouling and
The problem of damage, has saved electric energy, reduces overall cost, economic and environment-friendly, manufactured finished product formaldehyde purity is high, methanol content
It is low.
The utility model is not limited by embodiment illustrated herein, and is to fit to and principles disclosed herein and new
The consistent widest range of newness feature.
Claims (6)
1. a kind of consersion unit of methanol production formaldehyde, at air processor in parallel, methyl alcohol process device and tail gas
Device is managed, the air processor, methyl alcohol process device and exhaust gas processing device are connect with mixer (1), the mixing
Device connects oxidation reactor (2), and the oxidation reactor (2) connects drum (3), which is characterized in that the methyl alcohol process device
By sequentially connected crude carbinol slot (4), methanol purification device (5), purifying methanol slot (6), explosion-proof pump (7), flowmeter (8), first
Alcohol evaporator (9) is constituted, and is filled with adsorbent Si-Al molecular sieve in the methanol purification device (5)；The purifying methanol slot (6)
Top is provided with gas vent (10), and the gas vent (10) connects methanol gas accumulator tank (11), the methanol gas accumulator tank (11)
It is connected to mixer (1)；
The oxidation reactor (2) includes reaction chamber (21), and reaction chamber (21) outer wall surround setting electric heater unit (22),
Insulating layer (23) are set outside the electric heater unit (22)；
Drum (3) outlet is sequentially connected level-one formaldehyde absorbing tower (31), second level formaldehyde absorbing tower (32), three-level formaldehyde absorption
Tower (33) and rectifying column (34), the Produced Liquid after the three-level formaldehyde absorbing tower (33) absorbs enter rectifying column (34) rectifying, essence
It evaporates the methanol that tower (34) obtains and introduces crude carbinol slot (4)；The tail gas of the three-level formaldehyde absorbing tower (33) is passed through vent gas treatment dress
It sets.
2. a kind of consersion unit of methanol production formaldehyde according to claim 1, which is characterized in that the mixer (1)
Fire-retardant filter (12) are additionally provided between oxidation reactor (2).
3. a kind of consersion unit of methanol production formaldehyde according to claim 1, which is characterized in that the gas vent (10)
It is provided with vent valve (13).
4. a kind of consersion unit of methanol production formaldehyde according to claim 1, which is characterized in that the reaction chamber (21)
Inside it is additionally provided with temperature sensor (24) and barometer (25).
5. a kind of consersion unit of methanol production formaldehyde according to claim 1, which is characterized in that the vent gas treatment dress
Set including tail gas tank (35), the tail gas of the three-level formaldehyde absorbing tower (33) is passed through tail gas tank (35), the tail gas tank (35) according to
Secondary connection exhaust fan (36) and heater exhaust gas (37), the heater exhaust gas (37) connect mixer (1).
6. a kind of consersion unit of methanol production formaldehyde according to claim 1, which is characterized in that the air-treatment dress
It sets including air blower (14), the air blower (14) connects air filter (15), air filter (15) pipeline
It connects air preheater (16), air preheater (16) pipeline connects mixer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822251670.7U CN209397145U (en) | 2018-12-29 | 2018-12-29 | A kind of consersion unit of methanol production formaldehyde |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822251670.7U CN209397145U (en) | 2018-12-29 | 2018-12-29 | A kind of consersion unit of methanol production formaldehyde |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209397145U true CN209397145U (en) | 2019-09-17 |
Family
ID=67897198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822251670.7U Active CN209397145U (en) | 2018-12-29 | 2018-12-29 | A kind of consersion unit of methanol production formaldehyde |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209397145U (en) |
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2018
- 2018-12-29 CN CN201822251670.7U patent/CN209397145U/en active Active
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