CN203373292U - Alcohol washing water progressively-concentrated methanol recovery device - Google Patents
Alcohol washing water progressively-concentrated methanol recovery device Download PDFInfo
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- CN203373292U CN203373292U CN201320407317.8U CN201320407317U CN203373292U CN 203373292 U CN203373292 U CN 203373292U CN 201320407317 U CN201320407317 U CN 201320407317U CN 203373292 U CN203373292 U CN 203373292U
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- methanol
- pure water
- alcohol
- rare pure
- alcohol wash
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Abstract
The utility model belongs to an alcohol washing water progressively-concentrated methanol recovery device. The methanol recovery device comprises a desalinating water tank which is connected with a desalinating water supplying system, wherein the desalinating water tank is connected with a desalinating water inlet in the upper part of a methanol recovery tower through a first alcohol washing pump, the desalinating water inlet is communicated with a first dilute alcohol water outlet, the first dilute alcohol water outlet is connected with a first dilute alcohol water inlet through a dilute alcohol water tank and a second alcohol washing pump, the first dilute alcohol water inlet is communicated with a second dilute alcohol water outlet, the second dilute alcohol water outlet is connected with a second dilute alcohol water inlet, the second dilute alcohol water inlet is communicated with a third dilute alcohol water outlet, the third dilute alcohol water outlet is communicated with a third dilute alcohol water inlet of an intermediate tank, and a purge gas outlet is formed in the top of the intermediate tank and is connected with a first gas inlet in the lower part of the methanol recovery tower through a pipeline. The methanol recovery device has the advantages that the investment is small, the process is simple, the operating cost is low, and the loss of methanol is lowered while the concentration of alcohol washing water is increased.
Description
Technical field
The utility model belongs to the methanol recovery device technical field, is specifically related to a kind of pure wash water step by step concentration methanol recovery device that reduces the methyl alcohol loss when improving the alcohol wash water concentration.
Background technology
The mode of connection alcohol general employing alcohol wash in producing reclaims the gas-phase methanol do not separated, can know that by the vapor liquid equilibrium principle concentration that reduces pure wash water can reduce the methanol content in the rear gas of alcohol, also just can reduce the loss of methyl alcohol, but the concentration reduction of pure wash water can make the pure steam consumption of follow-up workshop section's essence of methanol production increase, unfavorable to the production cost that reduces methyl alcohol, if improve the concentration of pure wash water, the consumption of essence alcohol can decrease, but now after alcohol, the methanol content in gas can increase, loss to methyl alcohol is unfavorable, between the two, this disappears, and that is long, very unfavorable to the production cost that reduces methyl alcohol.
The utility model content
The purpose of this utility model is to overcome defect of the prior art, and a kind of less investment is provided, technique is simple, running cost is low, reduces the pure wash water step by step concentration methanol recovery device of methyl alcohol loss when improving the alcohol wash water concentration.
The purpose of this utility model is achieved in that this methanol recovery device comprises the de-salted water tank be connected with the de-salted water waterworks, the de-salted water tank is connected with the de-salted water import on methanol distillation column top by the first alcohol wash pump, the de-salted water import is connected with first rare pure water out of methanol distillation column bottom by the shower nozzle of methanol distillation column inside, first rare pure water out of methanol distillation column bottom is connected with first rare pure water inlet on middle pressure methyl alcohol alcohol wash tower top with the second alcohol wash pump by rare pure water tank, first rare pure water inlet is connected with second rare pure water out of middle pressure methyl alcohol alcohol wash tower bottom by the shower nozzle in middle pressure methyl alcohol alcohol wash tower, second rare pure water out is connected with second rare pure water inlet on low pressure methanol alcohol wash tower top by pipeline, second rare pure water inlet is connected with the 3rd rare pure water out at low pressure methanol alcohol wash tower middle part by the injector of low pressure methanol alcohol wash tower inside, the 3rd rare pure water out is connected with the 3rd rare pure water inlet of medial launder by pipeline, the top of medial launder is provided with the venting outlet of speeding, the outlet of speeding to exit is connected with the first gas feed of methanol distillation column bottom by pipeline, the first gas feed is connected with low press one-level inlet pipeline by the first pneumatic outlet of Methanol Recovery top of tower, middle pressure methyl alcohol system reaction gas is connected by the second gas feed of middle pressure methyl alcohol alcohol wash tower bottom and three grades of import pipelines of the second pneumatic outlet and high-pressure unit of middle pressure methyl alcohol alcohol wash top of tower, low pressure methanol system response gas is connected with high-pressure unit secondary inlet pipeline by the 3rd gas feed of low pressure methanol alcohol wash tower bottom and the 3rd pneumatic outlet of low pressure methanol alcohol wash top of tower.Be provided with the first valve between described the first alcohol wash pump and de-salted water import.Be provided with the second valve between described the second alcohol wash pump and first rare pure water inlet.Be provided with the 3rd valve between described second rare pure water out and second rare pure water inlet.
The pure wash water step by step concentration methanol recovery device of making according to such scheme, by using the venting of speeding in medial launder, make its in methanol distillation column with the de-salted water counter current contact, the gas-phase methanol that de-salted water will be speeded in venting absorbs and becomes rare pure water by the principle of dissolving, enter middle pressure methyl alcohol alcohol wash tower, the alcohol wash water is sent to middle pressure methyl alcohol alcohol wash tower as middle pressure methyl alcohol alcohol scouring water, and then the pure wash water that middle pressure methyl alcohol is produced is sent to the pure scouring water of low pressure methanol as low pressure methanol, improve step by step during the concentration of three alcohol wash towers alcohol wash waters, add discharge and increase gradually; There is less investment, technique is simple, running cost is low, reduces the advantage of methyl alcohol loss when improving the alcohol wash water concentration.
The accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, the utility model is pure wash water step by step concentration methanol recovery device, this methanol recovery device comprises the de-salted water tank 1 be connected with the de-salted water waterworks, de-salted water tank 1 is connected with the de-salted water import 4 on methanol distillation column 3 tops by the first alcohol wash pump 2, de-salted water import 4 is connected with first rare pure water out 5 of methanol distillation column 3 bottoms by the shower nozzle of methanol distillation column 3 inside, first rare pure water out 5 of methanol distillation column 3 bottoms is connected with first rare pure water inlet 9 on middle pressure methyl alcohol alcohol wash tower 8 tops with the second alcohol wash pump 7 by rare pure water tank 6, first rare pure water inlet 9 is connected with second rare pure water out 10 of middle pressure methyl alcohol alcohol wash tower 8 bottoms by the shower nozzle in middle pressure methyl alcohol alcohol wash tower 8, second rare pure water out 10 is connected with second rare pure water inlet 12 on low pressure methanol alcohol wash tower 11 tops by pipeline, second rare pure water inlet 12 is connected with the 3rd rare pure water out 13 at low pressure methanol alcohol wash tower 11 middle parts by the injector of low pressure methanol alcohol wash tower 11 inside, the 3rd rare pure water out 13 is connected with the 3rd rare pure water inlet 15 of medial launder 14 by pipeline, the top of medial launder 14 is provided with the venting outlet 16 of speeding, the outlet 16 of speeding to exit is connected with the first gas feed 17 of methanol distillation column 3 bottoms by pipeline, the first gas feed 17 is connected with low press one-level inlet pipeline 23 by first pneumatic outlet 18 at methanol distillation column 3 tops, middle pressure methyl alcohol system 24 reaction gases are connected by the second gas feed 19 of middle pressure methyl alcohol alcohol wash tower 8 bottoms and three grades of import pipelines 25 of the second pneumatic outlet 20 and high-pressure unit at middle pressure methyl alcohol alcohol wash tower 8 tops, low pressure methanol system 26 reaction gases are connected with high-pressure unit secondary inlet pipeline 27 by the 3rd gas feed 21 of low pressure methanol alcohol wash tower 11 bottoms and the 3rd pneumatic outlet 22 at low pressure methanol alcohol wash tower 11 tops.Be provided with the first valve 28 between described the first alcohol wash pump 2 and de-salted water import 4.Be provided with the second valve 29 between described the second alcohol wash pump 7 and first rare pure water inlet 9.Be provided with the 3rd valve 30 between described second rare pure water out 10 and second rare pure water inlet 12.
Liquid phase flow process in the utility model principle of work is: the de-salted water tank 1 be connected with the de-salted water waterworks, de-salted water enters the de-salted water import 4 on methanol distillation column 3 tops by the first alcohol wash pump 2, de-salted water sprays by the shower nozzle of methanol distillation column 3 inside, contact with the back flow of gas come on bottom the methyl alcohol absorbed in gas phase, the de-salted water sprayed becomes rare pure water after having absorbed methyl alcohol, and assemble the bottom at methanol distillation column 3, when gathering certain altitude, passes through in rare pure water first rare pure water out 5, rare pure water tank 6 and the second alcohol wash pump 7 enter first rare pure water inlet 9 on middle pressure methyl alcohol alcohol wash tower 8 tops, rare pure water sprays by the shower nozzle of middle pressure methyl alcohol alcohol wash tower 8 inside, contact with the back flow of gas come on bottom the methyl alcohol absorbed in gas phase, after the rare pure water sprayed has absorbed methyl alcohol, methanol concentration in rare pure water improves, and assemble the bottom at middle pressure methyl alcohol alcohol wash tower 8, rare pure water after by pressure difference, methanol concentration being improved when gathering certain altitude is squeezed in second rare pure water inlet 12 on low pressure methanol alcohol wash tower 11 tops, rare pure water after methanol concentration improves sprays downwards by the injector of low pressure methanol alcohol wash tower 11 inside, contact with the back flow of gas come on bottom the methyl alcohol absorbed in gas phase, after the rare pure water sprayed has absorbed methyl alcohol, methanol concentration in rare pure water further improves in the bottom of low pressure methanol alcohol wash tower 11 to be assembled, when gathering certain altitude, by the 3rd rare pure water out 13, enter in medial launder 14, gas phase flow process in principle of work is: the venting outlet 16 of speeding is connected with the first gas feed 17 of methanol distillation column 3 bottoms by pipeline, in methanol distillation column 3 with methanol distillation column 3 tops under the de-salted water counter current contact absorb the methyl alcohol in gas, the first pneumatic outlet 18 that remaining gas continues to rise by methanol distillation column 3 tops enters low press one-level inlet pipeline 23 recycles, middle pressure methyl alcohol system 24 reaction gases enter in middle pressure methyl alcohol alcohol wash tower 8 by the second gas feed 19 of middle pressure methyl alcohol alcohol wash tower 8 bottoms, middle pressure methyl alcohol system reaction gas rises and absorbs the methyl alcohol in this reaction gas with rare pure water counter current contact, and the second pneumatic outlet 20 that remaining gas continues to rise by middle pressure methyl alcohol alcohol wash tower 8 tops enters in three grades of import pipelines 25 of high-pressure unit, low pressure methanol system 26 reaction gases enter in low pressure methanol alcohol wash tower 11 by the 3rd gas feed 21 of low pressure methanol alcohol wash tower 11 bottoms, low pressure methanol system response gas rises and absorbs the methyl alcohol in this reaction gas with rare pure water counter current contact, and the 3rd pneumatic outlet 22 that remaining gas continues to rise by low pressure methanol alcohol wash tower 11 tops enters in high-pressure unit secondary inlet pipeline 27.
Claims (4)
1. a pure wash water step by step concentration methanol recovery device, it is characterized in that: this methanol recovery device comprises the de-salted water tank (1) be connected with the de-salted water waterworks, de-salted water tank (1) is connected with the de-salted water import (4) on methanol distillation column (3) top by the first alcohol wash pump (2), by methanol distillation column (3), inner shower nozzle is connected with first rare pure water out (5) of methanol distillation column (3) bottom in de-salted water import (4), first rare pure water out (5) of methanol distillation column (3) bottom is connected with first rare pure water inlet (9) on middle pressure methyl alcohol alcohol wash tower (8) top with the second alcohol wash pump (7) by rare pure water tank (6), first rare pure water inlet (9) is connected with second rare pure water out (10) of middle pressure methyl alcohol alcohol wash tower (8) bottom by the shower nozzle in middle pressure methyl alcohol alcohol wash tower (8), second rare pure water out (10) is connected with second rare pure water inlet (12) on low pressure methanol alcohol wash tower (11) top by pipeline, second rare pure water inlet (12) injector inner by low pressure methanol alcohol wash tower (11) is connected with the 3rd rare pure water out (13) at low pressure methanol alcohol wash tower (11) middle part, the 3rd rare pure water out (13) is connected with the 3rd rare pure water inlet (15) of medial launder (14) by pipeline, the napex of medial launder (14) is provided with the venting outlet (16) of speeding, the outlet (16) of speeding to exit is connected with first gas feed (17) of methanol distillation column (3) bottom by pipeline, the first gas feed (17) is connected with low press one-level inlet pipeline (23) by first pneumatic outlet (18) at methanol distillation column (3) top, middle pressure methyl alcohol system (24) reaction gas is connected with three grades of import pipelines of high-pressure unit (25) by second gas feed (19) of middle pressure methyl alcohol alcohol wash tower (8) bottom and second pneumatic outlet (20) at middle pressure methyl alcohol alcohol wash tower (8) top, low pressure methanol system (26) reaction gas is connected with high-pressure unit secondary inlet pipeline (27) by the 3rd gas feed (21) of low pressure methanol alcohol wash tower (11) bottom and the 3rd pneumatic outlet (22) at low pressure methanol alcohol wash tower (11) top.
2. pure wash water step by step concentration methanol recovery device according to claim 1, is characterized in that: between described the first alcohol wash pump (2) and de-salted water import (4), be provided with the first valve (28).
3. pure wash water step by step concentration methanol recovery device according to claim 1, is characterized in that: between described the second alcohol wash pump (7) and first rare pure water inlet (9), be provided with the second valve (29).
4. pure wash water step by step concentration methanol recovery device according to claim 1, is characterized in that: between described second rare pure water out (10) and second rare pure water inlet (12), be provided with the 3rd valve (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320407317.8U CN203373292U (en) | 2013-07-10 | 2013-07-10 | Alcohol washing water progressively-concentrated methanol recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320407317.8U CN203373292U (en) | 2013-07-10 | 2013-07-10 | Alcohol washing water progressively-concentrated methanol recovery device |
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| Publication Number | Publication Date |
|---|---|
| CN203373292U true CN203373292U (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320407317.8U Expired - Lifetime CN203373292U (en) | 2013-07-10 | 2013-07-10 | Alcohol washing water progressively-concentrated methanol recovery device |
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| CN (1) | CN203373292U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105237348A (en) * | 2015-09-21 | 2016-01-13 | 七台河宝泰隆煤化工股份有限公司 | Method for methanol removal and hydrogen recovery of exhausted gas |
| CN111346480A (en) * | 2020-03-20 | 2020-06-30 | 陕西陕焦化工有限公司 | Treatment device and treatment method for methanol waste gas |
-
2013
- 2013-07-10 CN CN201320407317.8U patent/CN203373292U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105237348A (en) * | 2015-09-21 | 2016-01-13 | 七台河宝泰隆煤化工股份有限公司 | Method for methanol removal and hydrogen recovery of exhausted gas |
| CN111346480A (en) * | 2020-03-20 | 2020-06-30 | 陕西陕焦化工有限公司 | Treatment device and treatment method for methanol waste gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 453731 Xinxiang Economic Development Zone, Henan Province (Xiaoji Town) Patentee after: Henan Xinlianxin Chemical Industry Group Co.,Ltd. Address before: 453731 Henan Xinxiang Economic Development Zone Xiaoji Town Henan Xinlianxin Chemical Fertilizer Co., Ltd. Patentee before: HENAN XINLIANXIN FERTILIZER Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |
|
| CX01 | Expiry of patent term |