CN207671691U - Prepare the device of carbon monoxide - Google Patents
Prepare the device of carbon monoxide Download PDFInfo
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- CN207671691U CN207671691U CN201721922906.4U CN201721922906U CN207671691U CN 207671691 U CN207671691 U CN 207671691U CN 201721922906 U CN201721922906 U CN 201721922906U CN 207671691 U CN207671691 U CN 207671691U
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- gas
- methanol
- carbon monoxide
- liquid separator
- adsorption tower
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Abstract
The device of carbon monoxide is prepared the utility model discloses a kind of, including the cracking zone and purification section being connected；Cracking zone includes the methanol tank being sequentially communicated, methanol pump, feed preheater, vaporizer, heat exchanger, superheater and converter；Feed preheater is connected to heat exchanger and recycling methanol heater respectively；Recycling methanol heater is connected to gas-liquid separator, condenser and methanol tank respectively；Gas-liquid separator is connected to condenser；Purification section includes the adsorption tower of several connections；Adsorption tower is connect with gas-liquid separator, displacement gas surge tank and compressor；Compressor is connected to gas-liquid separator.The present apparatus is during preparing carbon monoxide, without exhaust gas, discharging of waste liquid, safe and environment-friendly, low consumption.
Description
Technical field
The utility model belongs to carbon monoxide preparing technical field, and in particular to a kind of device preparing carbon monoxide.
Background technology
In order to adapt to the needs of fine chemicals development, a good oxygen is provided for carbonylic synthesis technologies such as acetic acid, aceticanhydrides
Change carbon raw material gas, good carbon monoxide is usually prepared by methanol decomposition, but prior art is using one oxygen of methanol production
During changing carbon, it is big often to there is carbon monoxide wastage, will produce waste liquid, big to environmental hazard, and can not efficiently use
Cracked gas heat, the problem of causing heat to be largely lost, influence preparation efficiency.
Utility model content
For above-mentioned deficiency in the prior art, the utility model provides a kind of device preparing carbon monoxide, Ke Yiyou
Effect solution prior art wastage during preparing carbon monoxide is excessive, the problem of heat utilization ratio deficiency.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of process units of carbon monoxide is provided, including the cracking zone and purification section being connected；
Cracking zone include the methanol tank being sequentially communicated, methanol pump, feed preheater, vaporizer, heat exchanger, superheater with
And converter；Feed preheater is connected to heat exchanger and recycling methanol heater respectively；Recycle methanol heater respectively with gas-liquid
Separator, condenser are connected to methanol tank；Gas-liquid separator is connected to condenser；
Purification section includes the adsorption tower of several connections；Adsorption tower with gas-liquid separator, displacement gas surge tank and compressor
Connection；Compressor is connected to gas-liquid separator.
Preferably, adsorption tower is connected to vacuum pump.
Preferably, adsorption tower is connected to product gas surge tank.
The beneficial effects of the utility model are：
1, gas is entered after displacement gas surge tank after compressor pressurizes by valve inverse put into gas-liquid point in adsorption tower
Yield is improved with the hydrogen and carbon monoxide of recycling the inside from device entrance, reduces methanol unit consumption.
2, after the pressure in adsorption tower drops to normal pressure, Open valve rushes adsorption tower into line replacement with product carbon monoxide
It washes, after the carbon monoxide developed is also by displacement gas surge tank, gas-liquid separator entrance is returned to through compressor pressurization, with
Improve product carbon monoxide purity.
3, material benzenemethanol is cracked into carbon monoxide, hydrogen and a small amount of carbon dioxide, 100~235 DEG C of cracking gas temperature, cracking
Again through heat exchanger and preheater with after material benzenemethanol heat exchange, heat is recycled gas, and is lowered into the cracking in condenser
The temperature of gas reduces the work load of condenser.
4, for the present apparatus during producing carbon monoxide, entire technique does not have exhaust gas, discharging of waste liquid, safe and environment-friendly, low
Consumption.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present apparatus.
Wherein, 1, methanol tank；2, methanol pump；3, feed preheater；4, gas-liquid separator；5, vaporizer；6, converter；
7, heat exchanger；8, condenser；9, displacement gas surge tank；10, vacuum pump；11, compressor；12, product gas surge tank；13, it adsorbs
Tower；14, methanol heater is recycled；15, superheater.
Specific implementation mode
Specific embodiment of the present utility model is described below, in order to facilitate understanding by those skilled in the art
The utility model, it should be apparent that the utility model is not limited to the range of specific implementation mode, to the common skill of the art
For art personnel, if various change the attached claims limit and determine the utility model spirit and scope in,
These variations are it will be apparent that all are created using the utility model of the utility model design in the row of protection.
As shown in Figure 1, this prepares the device of carbon monoxide, including the cracking zone and purification section being connected；Wherein, cracking zone
Including methanol tank 1, methanol pump 2, feed preheater 3, vaporizer 5, heat exchanger 7, superheater 15 and the conversion being sequentially communicated
Device 6；Heat exchanger 7 is connected to feed preheater 3；
As shown in Figure 1, cracking zone further includes recycling methanol heater 14, condenser 8 and the gas-liquid separator being sequentially communicated
4；Recycling methanol heater 14 is connected to gas-liquid separator 4, feed preheater 3 and methanol tank 1 respectively.
As shown in Figure 1, purification section includes several independent and connection adsorption tower 13；It is preferred that the quantity of adsorption tower 13 is 5,
And adsorption tower 13 is connected to gas-liquid separator 4.
As shown in Figure 1, displacement gas surge tank 9 and compressor 11 have been sequentially communicated after adsorption tower 13, and compressor 11 and gas
Liquid/gas separator 4 is connected to, and to recycle the hydrogen and carbon monoxide of 13 the inside of adsorption tower, is improved yield, is reduced methanol unit consumption.
As shown in Figure 1, by the methanol from methanol tank 1 after methanol pump 2 is pressurized to certain pressure, through feed preheater
3, after vaporizer 5, heat exchanger 7, methanol reaches reaction temperature by liquid phase after heating, vaporization and overheat, into converter 6, turns
Change and methanol decomposition special-purpose catalyst is housed in device 6, after inverted device 6, material benzenemethanol is cracked into carbon monoxide, hydrogen and a small amount of two
Carbonoxide, cracking gas temperature are 230 DEG C, and through heat exchanger 7 and feed preheater 3 with after material benzenemethanol heat exchange, heat is recycled,
After recovered again plus alcohol heater 14 cools down, gas is cooled to 10 DEG C or so using chilled brine by condenser 8, is not turned
Most of methanol of change is condensed, and after the separation of gas-liquid separator 4, liquid phase recycles the heated rear return methanol tank of methanol
1, gas enters after being come out from 4 top of gas-liquid separator in adsorption tower 13, carries out Pressure Swing Adsorption workshop section.
Wherein, the quantity of adsorption tower 13 is selected according to practical tolerance and operating pressure, preferably 5, conversion gas is by adsorbing
13 bottom of tower enters adsorption tower 13, and the adsorbent in adsorption tower 13 falls remaining component absorption in addition to hydrogen, and top comes out
Pure hydrogen exports after entering product gas surge tank 12 as product hydrogen.
After 13 adsorption saturation of adsorption tower, interior gas is pressed through valve and adjacent adsorption tower 13, by several times
After equal pressure drop (number of equalizer tank is determined according to adsorption tower quantity), press terminal pressure generally in 0.2~0.3MPa, adsorption tower
Gas enters 4 entrance of gas-liquid separator after bottom of tower inverse put enters displacement gas surge tank 9 after the pressurization of compressor 11 in 13, to return
The hydrogen and carbon monoxide for receiving the inside avoid arranging outside toxic gas, environmental protection, while improving yield, reduce methanol unit consumption；And
After pressure in adsorption tower 13 drops to normal pressure, Open valve carries out slow rinse with product carbon monoxide to adsorption tower 13, rinses
After carbon monoxide out is also by displacement gas surge tank 9,4 entrance of gas-liquid separator is returned to through the pressurization of compressor 11, to carry
High product carbon monoxide purity.
Also, adsorption tower 13, after flushing, the foreign gases such as hydrogen are removed totally substantially between adsorbent, are then turned on vacuum pump
10 pairs of adsorption towers 13 vacuumize, and inhale CO gas in meeting agent at this time and all desorb as product gas carbon monoxide, obtain
Reach 97.6% to yield, the carbon monoxide that purity is 98.7%.Moreover, the present apparatus is during producing carbon monoxide, it is whole
A technique does not have exhaust gas, discharging of waste liquid, safe and environment-friendly, low consumption.
Specific implementation mode is described in detail, but should not be construed as the restriction to the protection domain of this patent.
In range described by claims, various modifications and deformation that those skilled in the art can make without creative work
Still belong to the protection domain of this patent.
Claims (3)
1. a kind of device preparing carbon monoxide, which is characterized in that including the cracking zone and purification section being connected；
The cracking zone includes the methanol tank (1) being sequentially communicated, methanol pump (2), feed preheater (3), vaporizer (5), changes
Hot device (7), superheater (15) and converter (6)；The feed preheater (3) adds with heat exchanger (7) and recycling methanol respectively
Hot device (14) connection；The recycling methanol heater (14) respectively with gas-liquid separator (4), condenser (8) and methanol tank (1)
Connection；The gas-liquid separator (4) is connected to condenser (8)；
The purification section includes the adsorption tower (13) of several connections；The adsorption tower (13) with gas-liquid separator (4), displacement gas
Surge tank (9) and compressor (11) connection；The compressor (11) is connected to gas-liquid separator (4).
2. the device according to claim 1 for preparing carbon monoxide, which is characterized in that the adsorption tower (13) is and vacuum
Pump (10) connection.
3. the device according to claim 1 for preparing carbon monoxide, which is characterized in that the adsorption tower (13) is and product
Gas surge tank (12) is connected to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721922906.4U CN207671691U (en) | 2017-12-29 | 2017-12-29 | Prepare the device of carbon monoxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721922906.4U CN207671691U (en) | 2017-12-29 | 2017-12-29 | Prepare the device of carbon monoxide |
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| Publication Number | Publication Date |
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| CN207671691U true CN207671691U (en) | 2018-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721922906.4U Active CN207671691U (en) | 2017-12-29 | 2017-12-29 | Prepare the device of carbon monoxide |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107973298A (en) * | 2017-12-29 | 2018-05-01 | 成都科特瑞兴科技有限公司 | Prepare the device and its technique of carbon monoxide |
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2017
- 2017-12-29 CN CN201721922906.4U patent/CN207671691U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107973298A (en) * | 2017-12-29 | 2018-05-01 | 成都科特瑞兴科技有限公司 | Prepare the device and its technique of carbon monoxide |
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