CN206666415U - Coke-stove gas methanol preparation system - Google Patents
Coke-stove gas methanol preparation system Download PDFInfo
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- CN206666415U CN206666415U CN201720199007.XU CN201720199007U CN206666415U CN 206666415 U CN206666415 U CN 206666415U CN 201720199007 U CN201720199007 U CN 201720199007U CN 206666415 U CN206666415 U CN 206666415U
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- methanol
- coke
- circulating air
- alcohol tower
- cold alcohol
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Abstract
The utility model discloses a kind of coke-stove gas methanol preparation system, including cold alcohol tower, the inner chamber of cold alcohol tower is provided with filter core and multilayer column plate, desalted water is provided with the side wall of cold alcohol tower and enters groove and circulating air air inlet pipe, the bottom of cold alcohol tower is provided with crude carbinol outlet, and top is provided with circulating air escape pipe；Also include methanol loop air compressor, methanol-fueled CLC device, methanol cooler and the methanol separator being sequentially connected, the gas vent of methanol separator is connected with circulating air air inlet pipe, desalted water, which enters on groove, is connected with desalination pump, the crude carbinol outlet of methanol separator and crude carbinol outlet are connected with the entrance of flash tank, and the inlet end of methanol loop air compressor is connected with coke oven gas pipe and circulating air escape pipe.The utility model compared with prior art, can increase methanol output and the rate of recovery.
Description
Technical field
The utility model belongs to chemical technology field, and in particular to a kind of coke-stove gas methanol preparation system.
Background technology
Coke-stove gas methanol technology, original are designed as band methanol separator after synthesis water cooler, liquid methanol reclaimed, together
When separator upper design ultrafiltration apparatus, recovery fails the drop methanol separated, so as to increase the rate of recovery of methanol；And
The circulating air for setting 5% is methanol purge gas, washes alcohol tower by one, again recovery section methanol.Reclaim above defective：1st, first
Alcohol separator can only isolate liquid methanol, it is impossible to reclaim gaseous methanol simultaneously；2nd, the circulation that alcohol tower can only be to 5% or so is washed
Gas carries out washing alcohol, and 95% methanol fails to reclaim in time in remaining circulating air, not only reduces methanol yield, and in circulating air
A large amount of gaseous methanols reenter synthetic catalyst bed, hinder the forward reaction of generation methanol, and add compressor
Energy consumption.Just seem particularly important and necessary so the methanol of all forms in circulating air is all reclaimed.
Utility model content
The purpose of this utility model is to provide a kind of coke-stove gas methanol preparation system, compared with prior art, can increase
Methanol output and the rate of recovery.
The utility model is the technical scheme adopted is that a kind of coke-stove gas methanol preparation system, including cold alcohol tower, described
The inner chamber of cold alcohol tower is provided with filter core and the multilayer column plate below filter core, and desalted water is provided with the side wall of the cold alcohol tower
Into groove and circulating air air inlet pipe, the desalted water enters groove between filter core and column plate, and the circulating air air inlet pipe is located at
The lower section of column plate, the bottom of the cold alcohol tower is provided with crude carbinol outlet, and top is provided with circulating air escape pipe；Also include
Methanol loop air compressor, methanol-fueled CLC device, methanol cooler and the methanol separator being sequentially connected, the methanol separator
Gas vent is connected with circulating air air inlet pipe, and the desalted water, which enters on groove, is connected with desalination pump, the methanol separator
Crude carbinol outlet and crude carbinol outlet be connected with the entrance of flash tank, the inlet end of the methanol loop air compressor
It is connected with coke oven gas pipe and circulating air escape pipe.
Further, the outlet of the flash tank is connected with periodic off-gases pipeline and rectifying inlet duct.
Further, it is provided with liquid level gauge below the cold alcohol tower.
The beneficial effects of the utility model are can to reclaim a large amount of methanol products.Compared with prior art, this practicality is utilized
Novel coke oven gas methanol preparation system can reclaim 0.5 ton of methanol more per hour using 100,000 tons of coke-stove gas methanol.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model coke-stove gas methanol preparation system；
Fig. 2 is the structural representation of the net alcohol tower in the utility model.
Wherein, 1, methanol-fueled CLC device, 2, methanol cooler, 3, methanol separator, 4, flash tank, 5, cold alcohol tower, 6, methanol
Recycle gas compressor, 7, desalination pump；
5-1, filter core, 5-2, column plate, 5-3, desalted water enter groove, 5-4, circulating air air inlet pipe, 5-5, liquid level gauge, 5-6, thick
Methanol outlet pipe, 5-7, circulating air escape pipe.
Embodiment
As depicted in figs. 1 and 2, a kind of coke-stove gas methanol preparation system of the utility model, including cold alcohol tower 5, cold alcohol tower 5
Inner chamber be provided with the filter core 5-1 and multilayer column plate 5-2 below filter core 5-1, be provided with desalted water in the side wall of cold alcohol tower 5
Into groove 5-3 and circulating air air inlet pipe 5-4, desalted water enters groove 5-3 between filter core 5-1 and column plate 5-2, circulating air air inlet
Pipe 5-4 is located at column plate 5-2 lower section, and the bottom of cold alcohol tower 5 is provided with crude carbinol outlet 5-6, and top is provided with circulating air
Escape pipe 5-7.
A kind of coke-stove gas methanol preparation system of the utility model also include be sequentially connected methanol loop air compressor 6,
Methanol-fueled CLC device 1, methanol cooler 2 and methanol separator 3, gas vent and the circulating air air inlet pipe 5-4 phases of methanol separator 3
Connection, desalted water, which enters on groove 5-3, is connected with desalination pump 7, the crude carbinol outlet of methanol separator 3 and crude carbinol outlet 5-
6 entrance with flash tank 4 is connected, and the inlet end of methanol loop air compressor 6 is connected with coke oven gas pipe and circulating air
Escape pipe 5-7.
The outlet of flash tank 4 is connected with periodic off-gases pipeline and rectifying inlet duct.
The lower section of cold alcohol tower 5 is provided with liquid level gauge 5-5.
The utility model carries out the process of methanol preparation：Coke-stove gas after desulfurization conversion enters through coke oven gas pipe
After entering the pressurization of methanol loop air compressor 6, deliver to methanol-fueled CLC device 1 and participate in the gaseous crude carbinol of methanol synthesis reaction generation, first
The mixed gas comprising crude carbinol cools down into methanol cooler 2 in alcohol synthesizer 1, enters back into methanol separator 3, methanol point
Delivered to from liquid methanol caused by device 3 in flash tank 4, the mixed gas in methanol separator 3 enters through circulating air air inlet pipe 5-4
In cold alcohol tower 5, mixed gas carries out solution absorption gaseous methanol with top-down desalted water on column plate 5-2 in cold alcohol tower
Afterwards, form liquid crude carbinol and drop to bottom of towe downwards, through crude carbinol outlet 5-6, deliver to flash tank 4, meanwhile, in cold alcohol tower
Gas without absorption reenters methanol-fueled CLC device 1 into methanol loop air compressor 6 through circulating air escape pipe 5-7 and participates in first
Alcohol synthesis reaction.
Traditional methanol-fueled CLC recovery process is：Coke-stove gas passes through desulfurization, conversion, is pressurizeed through methanol loop air compressor
Afterwards, it is sent into methyl alcohol synthetic reactor and participates in methanol synthesis reaction, generates gaseous methanol.Reaction equation is CO+H2=CH3OH,CO2+H2
=CH3OH+H2O, above reaction is reversible reaction, passes through gaseous state first caused by catalyst for methanol bed in each circulating air
Alcohol first passes through a water cooler, makes the methanol condensed of the overwhelming majority into liquid, and gaseous methanol is still existed in circulating air and passed through
Recycle gas compressor is again introduced into beds, so as to hinder the positive of methanol synthesis reaction to carry out, reduces methanol yield
And yield.
The utility model uses 100,000 tons compared with prior art, using the utility model coke-stove gas methanol preparation system
Coke-stove gas methanol can reclaim 0.5 ton of methanol more per hour.
Claims (3)
1. a kind of coke-stove gas methanol preparation system, it is characterised in that including cold alcohol tower (5), the inner chamber of the cold alcohol tower (5) is set
Filter core (5-1) and the multilayer column plate (5-2) below filter core (5-1) are equipped with, is provided with the side wall of the cold alcohol tower (5) de-
Salt solution enters groove (5-3) and circulating air air inlet pipe (5-4), and the desalted water is located at filter core (5-1) and column plate into groove (5-3)
Between (5-2), the circulating air air inlet pipe (5-4) is located at the lower section of column plate (5-2), and the bottom of the cold alcohol tower (5) is provided with
Crude carbinol outlet (5-6), and top is provided with circulating air escape pipe (5-7)；
Also include methanol loop air compressor (6), methanol-fueled CLC device (1), methanol cooler (2) and the separating methanol being sequentially connected
Device (3), the gas vent of the methanol separator (3) are connected with circulating air air inlet pipe (5-4), and the desalted water enters groove
Be connected with desalination pump (7) on (5-3), the crude carbinol outlet of the methanol separator (3) and crude carbinol outlet (5-6) with
The entrance of flash tank (4) is connected, and the inlet end of the methanol loop air compressor (6) is connected with coke oven gas pipe and circulation
Gas escape pipe (5-7).
2. according to coke-stove gas methanol preparation system described in claim 1, it is characterised in that the outlet of the flash tank (4) connects
It is connected to periodic off-gases pipeline and rectifying inlet duct.
3. according to the coke-stove gas methanol preparation system of claim 1 or 2, it is characterised in that the lower section of the cold alcohol tower (5)
It is provided with liquid level gauge (5-5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720199007.XU CN206666415U (en) | 2017-03-03 | 2017-03-03 | Coke-stove gas methanol preparation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720199007.XU CN206666415U (en) | 2017-03-03 | 2017-03-03 | Coke-stove gas methanol preparation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206666415U true CN206666415U (en) | 2017-11-24 |
Family
ID=60378637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720199007.XU Active CN206666415U (en) | 2017-03-03 | 2017-03-03 | Coke-stove gas methanol preparation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206666415U (en) |
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2017
- 2017-03-03 CN CN201720199007.XU patent/CN206666415U/en active Active
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