CN206467168U - Methanol production system with high-temperature and low-temperature double alcohol separation - Google Patents
Methanol production system with high-temperature and low-temperature double alcohol separation Download PDFInfo
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- CN206467168U CN206467168U CN201720034215.4U CN201720034215U CN206467168U CN 206467168 U CN206467168 U CN 206467168U CN 201720034215 U CN201720034215 U CN 201720034215U CN 206467168 U CN206467168 U CN 206467168U
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- methanol
- gas
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- temperature
- heat exchanger
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 321
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 238000000926 separation method Methods 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000001816 cooling Methods 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 abstract description 11
- 239000003054 catalyst Substances 0.000 abstract description 7
- 238000007086 side reaction Methods 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 6
- 239000007795 chemical reaction product Substances 0.000 abstract description 6
- 238000003786 synthesis reaction Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 28
- 239000000126 substance Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- -1 thing Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a methanol production system with high-temperature and low-temperature double alcohol separation, which comprises a methanol synthesis tower with a feed inlet and a discharge outlet, wherein the discharge outlet of the methanol synthesis tower is communicated with a gas/gas heat exchanger, an air cooler, a water cooler, a low-temperature methanol separator and a methanol rectifying tower in turn through pipelines; a recycling pipeline communicated with a feed back port of the low-temperature methanol separator is communicated with a feed inlet of the methanol synthesis tower after passing through the gas/gas heat exchanger, and a circulator is arranged on the recycling pipeline between the low-temperature methanol separator and the gas/gas heat exchanger; a high-temperature methanol separator is arranged on a pipeline between the air/air heat exchanger and the air cooler or a pipeline between the air cooler and the water cooler. The utility model discloses simple structure, the simple installation separates impurity effectually. A high-temperature methanol separator is arranged on a working pipeline in front of the water cooler, so that impurities such as partially liquefied methanol, wax, side reaction products, catalyst ash and the like are separated from the system, and the water cooler is effectively prevented from being blocked by the impurities.
Description
Technical field
The utility model is related to methanol production, more particularly, to a kind of methanol production system with the double alcohol point of high and low temperature.
Background technology
In existing methanol process, either Single methanol production still joins alcohol production, is only in the water cooling of production system
The low-temp methanol separator of one temperature≤40 DEG C is set after device, as shown in figure 1, from methyl alcohol synthetic reactor come out containing methanol
Forming gas, is sequentially passed through by working line and entered after gas gas-heat exchanger, air cooler and water cooler in low-temp methanol separator
Separated, not liquefied gaseous methanol enters together with unreacted forming gas by circulator in low-temp methanol separator
Entered back into after gas gas-heat exchanger heating and synthesizing methanol reaction is carried out in methyl alcohol synthetic reactor, so circulation；At the same time, methanol point
It can be then collected from liquefied methanol in device after methanol rectifying tower.No matter single methanol or connection alcohol dropped through gas gas-heat exchanger
Wen Hou, occurs the harmful substances such as side reaction product, wax, catalyst ash, and from figure 1 it appears that in gas gas-heat exchanger
Between whole level water cooler, without any separation equipment, because the equipment of the workshop section is all cooling system, the side reaction production of methanol
The harmful substances such as thing, wax, catalyst ash start solidification in these cooling systems and pipeline, when these harmful substances are tired for a long time
After product is in the equipment such as water cooler, low-temp methanol separator, air cooler, water cooler, methanol separator etc. will be greatly lowered
Water consumption and power consumption in the operating efficiency of equipment, increase production process, cause the discharge capacity of waste gas, waste water to improve, unfavorable
The stability normally produced in energy-conserving and environment-protective, influence whole system, the productivity effect of enterprise is substantially reduced.For methanol production amount
Larger enterprise, is accomplished by reduction load for every 1 ~ 3 day, turns off water cooler, hot wash or the torrid zone are carried out to system；And for some first
The less enterprise of alcohol production amount, at least half a year are accomplished by stopping production once, and system is cleaned comprehensively.This has all had a strong impact on life
Efficiency is produced, enterprise is produced huge financial expenditure, while there is also very big potential safety hazard, adding the environmental protection pressure of enterprise
Power.
The content of the invention
The purpose of this utility model is to provide a kind of methanol production system with the double alcohol point of high and low temperature, the production system
System can effectively prevent accumulation of the harmful substance such as side reaction product, wax, catalyst ash in system.
To achieve the above object, the utility model can take following technical proposals：
Methanol production system described in the utility model with the double alcohol point of high and low temperature, including with the first into and out of material mouth
Alcohol synthetic tower, the discharging opening of the methyl alcohol synthetic reactor by working line successively with gas gas-heat exchanger, air cooler, water cooler, low
Warm methanol separator, methanol rectifying tower are connected；The recovery pipe being connected with the low-temp methanol separator feedback outlet is passed through
It is connected after the gas gas-heat exchanger with the methyl alcohol synthetic reactor charging aperture, is exchanged heat in the low-temp methanol separator and gas gas
Circulator is provided with the recovery pipe between device；Instrumentation tubes between the gas gas-heat exchanger and the air cooler
High temperature methanol separator is provided with working line on road or between the air cooler and the water cooler.
The water cooler is made up of one-level water cooler and two-stage water-cooling device, and the high temperature methanol separator is arranged on described one
On working line between level water cooler and the two-stage water-cooling device.
The utility model has the advantage of simple in construction, simple installation, separation impurity effect is good.By before water cooler
Working line on set a high temperature methanol separator（High temperature methanol separator is regardless of manufacturer, is wanted as long as can play
The centrifugation asked）, make at high temperature under high pressure the impurity such as methanol, wax, side reaction product, the catalyst ash of partial liquefaction from
Separated in system, effectively prevent impurity from blocking water cooler, it is ensured that the operating efficiency of water cooler and low-temp methanol separator, greatly
The big water consumption and power consumption reduced in production process, reduces the discharge capacity of waste gas, waste water, energy-conserving and environment-protective are improved whole
The stability of individual methanol production system, improves the productivity effect of enterprise.
Brief description of the drawings
Fig. 1 is the structural representation of existing methanol production system.
Fig. 2 is the structural representation of the utility model embodiment 1.
Fig. 3 is the structural representation of the utility model embodiment 2.
Fig. 4 is the structural representation of the utility model embodiment 3.
Embodiment
More detailed explanation is done to the utility model with reference to specific embodiment.
Embodiment 1：
As shown in Fig. 2 the methanol production system of the present utility model with the double alcohol point of high and low temperature, including with charging and discharging
Mouthful methyl alcohol synthetic reactor, the discharging opening of methyl alcohol synthetic reactor by working line successively with gas gas-heat exchanger, high temperature methanol separator
（>=65 DEG C of high temperature alcohol point）, air cooler, water cooler, low-temp methanol separator, methanol rectifying tower be connected, separated with low-temp methanol
The recovery pipe that device feedback outlet is connected is connected after gas gas-heat exchanger with methyl alcohol synthetic reactor charging aperture, in low-temp methanol
Circulator is provided with recovery pipe between separator and gas gas-heat exchanger.That is, the former gas gas-heat exchanger of cut-out and wind
Service pipe between cooler, makes the outlet of gas gas-heat exchanger be connected with the import of high temperature methanol separator, high temperature methanol separation
The outlet of device is connected with the import of air cooler.
During work, synthetic tower has synthesized the synthesis gas of methanol（200 DEG C or so, include methanol about 5% ~ 10%）, by gas gas
After heat exchanger, temperature is down to 110 DEG C, then immediately proceeds in high temperature methanol separator, at high temperature under high pressure by liquefied first
The impurity such as alcohol, wax, side reaction product, catalyst ash are separated from system, are not into follow-up equipment, make subsequently to set
It is standby to be in efficient operation state all the time, heat exchange, the separative efficiency of whole system are not influenceed, it is ensured that methanol production system is steady in a long-term
Operation.
Embodiment 2：
Some production technologies can cause after liquid methanol appears in air cooler, now of the present utility model with high and low
The methanol production system of warm double alcohol point then as shown in figure 3, including with the methyl alcohol synthetic reactor into and out of material mouth, methyl alcohol synthetic reactor
Discharging opening by working line successively with gas gas-heat exchanger, air cooler, high temperature methanol separator（>=65 DEG C of high temperature alcohol point）, water
Cooler, low-temp methanol separator, methanol rectifying tower are connected, the recovery pipe warp being connected with low-temp methanol separator feedback outlet
Cross after gas gas-heat exchanger and to be connected with methyl alcohol synthetic reactor charging aperture, returning between low-temp methanol separator and gas gas-heat exchanger
Closed tube is provided with circulator on road.
On the working line that high temperature methanol separator is connected to air cooler rear portion, the synthesis gas that will can be come out from air cooler
Present in the impurity such as liquid methanol separate, it is ensured that follow-up equipment is in efficient operation state all the time.
Embodiment 3：
Also some production technologies employ two-stage water-cooling, after at this moment liquid methanol just appears in one-level water cooler,
Methanol production system now of the present utility model with the double alcohol point of high and low temperature is as shown in figure 4, including with into and out of material mouth
Methyl alcohol synthetic reactor, the discharging opening of methyl alcohol synthetic reactor by working line successively with gas gas-heat exchanger, air cooler, one-level water cooler,
High temperature methanol separator（>=65 DEG C of high temperature alcohol point）, two-stage water-cooling device, low-temp methanol separator, methanol rectifying tower be connected, with
The recovery pipe that low-temp methanol separator feedback outlet is connected is connected after gas gas-heat exchanger with methyl alcohol synthetic reactor charging aperture
It is logical, it is provided with circulator in the recovery pipe between low-temp methanol separator and gas gas-heat exchanger.
High temperature methanol separator is arranged between two-stage water cooler, can be to being deposited in the synthesis gas that is come out from one-level water cooler
The impurity such as liquid methanol separated, it is ensured that the follow-up equipment such as two-stage water-cooling device is in efficient operation state all the time.
Three of the above embodiment can incite somebody to action partly liquefied by high temperature methanol separator under HTHP effect
The impurity such as methanol, wax, side reaction product, catalyst ash are separated from system so that impurity and harmful substance can not enter
In final water cooler, water cooler wax deposition, blocking are prevented, it is ensured that the heat transfer efficiency of water cooler, it is ensured that final water cooler and low
Warm methanol separator is constantly in moderately good work condition state.Experiment is proved, using methanol production system of the present utility model,
Cooling water inflow more than 8% can be saved, methanol rectification steam saving more than 15%, discharge amount of exhaust gas reduces more than 20%, stops production or subtract
The cycle of load cleaning system jams is reduced to 2 ~ 3 years once by annual more than 3 times.
Methanol production system of the present utility model is in the large-scale methanol production enterprise in Shanxi, the large-scale methanol production enterprise in Xinjiang
Continuously run in industry more than 2 years, performance is stable, work well, with higher application value.
Claims (2)
1. a kind of methanol production system with the double alcohol point of high and low temperature, including with the methyl alcohol synthetic reactor into and out of material mouth, it is described
The discharging opening of methyl alcohol synthetic reactor by working line successively with gas gas-heat exchanger, air cooler, water cooler, low-temp methanol separator,
Methanol rectifying tower is connected；The recovery pipe being connected with the low-temp methanol separator feedback outlet exchanges heat by the gas gas
It is connected after device with the methyl alcohol synthetic reactor charging aperture, described between the low-temp methanol separator and gas gas-heat exchanger
Circulator is provided with recovery pipe；It is characterized in that：Working line between the gas gas-heat exchanger and the air cooler
High temperature methanol separator is provided with the upper or working line between the air cooler and the water cooler.
2. the methanol production system according to claim 1 with the double alcohol point of high and low temperature, it is characterised in that：The water cooling
Device is made up of one-level water cooler and two-stage water-cooling device, and the high temperature methanol separator is arranged on the one-level water cooler and described two
On working line between level water cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720034215.4U CN206467168U (en) | 2017-01-12 | 2017-01-12 | Methanol production system with high-temperature and low-temperature double alcohol separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720034215.4U CN206467168U (en) | 2017-01-12 | 2017-01-12 | Methanol production system with high-temperature and low-temperature double alcohol separation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206467168U true CN206467168U (en) | 2017-09-05 |
Family
ID=59705801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720034215.4U Active CN206467168U (en) | 2017-01-12 | 2017-01-12 | Methanol production system with high-temperature and low-temperature double alcohol separation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206467168U (en) |
-
2017
- 2017-01-12 CN CN201720034215.4U patent/CN206467168U/en active Active
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