CN203678352U - Safety releasing carbonylation reactor for preparing ethylene glycol from synthesis gas - Google Patents
Safety releasing carbonylation reactor for preparing ethylene glycol from synthesis gas Download PDFInfo
- Publication number
- CN203678352U CN203678352U CN201320872626.2U CN201320872626U CN203678352U CN 203678352 U CN203678352 U CN 203678352U CN 201320872626 U CN201320872626 U CN 201320872626U CN 203678352 U CN203678352 U CN 203678352U
- Authority
- CN
- China
- Prior art keywords
- gas
- safety
- valve
- ethylene glycol
- preparing ethylene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
Landscapes
- Safety Valves (AREA)
Abstract
The utility model provides a safety releasing carbonylation reactor for preparing ethylene glycol from synthesis gas. The safety releasing carbonylation reactor comprises an end socket arranged at the top end of the carbonylation reactor, wherein the end socket is connected with a gas inlet pipe; a gas outlet pipe is arranged on the end socket; a rupture disk device is arranged on the gas outlet pipe; a gas release valve is arranged on the gas inlet pipe; the gas outlet end of the gas release valve is connected with a safety valve; the gas outlet end of the safety valve and the tail end of the gas outlet pipe are connected with a rubber sealing dry type gas cabinet through a main flare gas pipe. The carbonylation reactor adopts the rupture disk device as a safety releasing device and has the advantages of high safety coefficient and convenience in replacement; released gas and fed gas are fed into the main flare gas pipe and are used as raw gas or are directly combusted, so that the atmospheric pollution caused by a fact that the gas is released into air is avoided.
Description
Technical field
The utility model relates to synthesis gas preparing ethylene glycol production technical field, relates in particular to a kind of synthesis gas preparing ethylene glycol oxonation device of safety relief.
Background technology
In synthesis gas preparing ethylene glycol technique, the reaction cycle gas methyl nitrite (CH that the production technology gas of carbonylation operation is esterification step
3oNO, is called for short MN) with the fresh CO out-of-bounds coming, they,, after feed heater is heated to 120 ℃ of left and right, are entered to oxonation device, be that 130 ℃ of left and right, pressure are 0.3MPa and Pd/Al in temperature
2o
3under the effect of catalyst, there is oxonation, the dimethyl oxalate (COOCH of generation
3)
2gas.
Because methyl nitrite is very unstable, very easily decompose, can cause generation temperature runaway situation in oxonation device.If there is peroxide or CH in oxonation device
3when ONO concentration is excessive, thereby cause CH
3oNO decomposes, and MN decomposes generation CH
2o, NO, CO, further dehydrogenation product H
2, CH
2o, NO, CO, gas volume will increase by 30% left and right.Cause in the gaseous phase volume short time in oxonation device and expand, and cause superpressure.At this time just need safety relief facility to enable rapidly, the gas in oxonation device is released out, and avoid causing danger.Existing oxonation device is all at its top, safety valve to be set to be used as the facility that gas safety is released.But because safety valve needs the opening time in opening process, or the situation that causes safety valve to block because the valve body of safety valve is aging etc. not open, this will cause the security incidents such as blast, burning.
Utility model content
The utility model will solve above-mentioned deficiency exactly, and a kind of synthesis gas preparing ethylene glycol oxonation device of safety relief is provided, and has safe, easy to operate feature.
In order to achieve the above object, the utility model provides a kind of synthesis gas preparing ethylene glycol oxonation device of safety relief, comprises the end socket of being located at oxonation device top, on described end socket, is connected with air inlet pipe, described end socket is provided with escape pipe, on described escape pipe, is provided with blasting piece device; Described air inlet pipe is provided with gas bleeder valve, and the outlet side of described gas bleeder valve is connected with safety valve, and the outlet side of described safety valve is all connected with rubber seal dry gas-holder by torch gas house steward with the end of described escape pipe.
Further, in order to make gas in oxonation device release faster, described end socket is provided with two escape pipes.
Further, on described escape pipe, be disposed with two blasting piece devices, between two blasting piece devices, be provided with Pressure gauge.Whether Pressure gauge is convenient to observe first blasting piece device borehole blasting sheet and is broken disappointing.
Further, for the ease of maintenance, described escape pipe is provided with the by-pass valve control of normally open, and the outlet side of by-pass valve control is connected with blasting piece device.
Further, for fear of safety valve damage, the unstripped gas in air inlet pipe is tackled to described air inlet pipe and be provided with hand-operated valve, in the time that safety valve is damaged or it is overhauled, to close gas bleeder valve, open hand-operated valve, unstripped gas enters torch gas house steward from hand-operated valve.
In the time that methyl nitrite in oxonation device causes superpressure because temperature runaway decomposes, its decomposition gas enters in escape pipe, by blasting piece device because of the pressurized release pressure that breaks, decomposition gas stores as fuel gas utilization in torch gas house steward enters rubber seal dry gas-holder, avoids being discharged in air and causes atmosphere pollution.Between two blasting piece devices, be provided with Pressure gauge and observe first blasting piece device borehole blasting sheet and whether break disappointing by being arranged at, and judge according to this barometric information in oxonation device, if first blasting piece device breaks, open rapidly the gas bleeder valve in air inlet pipe, cut off feeding gas; As feed gas pressure is greatly got through safety valve and enters in torch gas house steward; In the time that safety valve is damaged or it is overhauled, to close gas bleeder valve, open hand-operated valve, unstripped gas enters torch gas house steward from hand-operated valve.
The beneficial effects of the utility model are embodied in:
1, this oxonation device safety coefficient is high, as long as when methyl nitrite causes superpressure because temperature runaway decomposes, entered in torch gas house steward and released by escape pipe, has avoided the generation of security incident.
2, the utility model adopts blasting piece device as the safety device of releasing, and it has without leakage, the strong feature of relieving capacity, and fast compared with discharge of safety valve speed, has protected safety in oxonation process; The new blasting piece device of timely installation after closed control valve after releasing, has installation simply and replacing facilitates feature.
3, due in the gas of releasing containing the nitrogen of 65-70%, will release gas and feeding gas of this device passes in torch gas house steward as prepared using or directly burns, and avoids being discharged in air and causes atmosphere pollution.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the utility model structural representation;
In figure: 1-oxonation device, 2-end socket, 3-1 air inlet pipe, 3-2 escape pipe, 4-rubber seal dry gas-holder, 5-by-pass valve control, 6-1 the first blasting piece device, 6-2 the second blasting piece device, 7-Pressure gauge, 8-safety valve, 9-1 gas bleeder valve, 9-2 hand-operated valve, 10-torch gas house steward.
The specific embodiment
As shown in Figure 1, a kind of synthesis gas preparing ethylene glycol oxonation device of safety relief, comprise the end socket 2 of being located at oxonation device 1 top, on described end socket 2, be connected with air inlet pipe 3-1 and two escape pipe 3-2, on described escape pipe 3-2, be disposed with by-pass valve control 5, the first blasting piece device 6-1, Pressure gauge 7, the second blasting piece device 6-2; The gas of releasing enters in escape pipe 3-2, enters torch gas house steward 10 successively by by-pass valve control 5, the first blasting piece device 6-1, Pressure gauge 7, the second blasting piece device 6-2, finally enters rubber seal dry gas-holder 4 and stores.Described air inlet pipe 3-1 is provided with gas bleeder valve 9-1 and hand-operated valve 9-2, the outlet side of gas bleeder valve 9-1 is connected with safety valve 8, in the time there is superpressure in oxonation device 1, need block in time feeding gas, make feeding gas enter torch gas house steward 10 by gas bleeder valve 9-1, safety valve 8; Or directly enter torch gas house steward 10 by hand-operated valve 9-2.
And in the time that in oxonation device 1, air pressure is normal, gas bleeder valve 9-1 and by-pass valve control 5 are normally open, for hand-operated valve 9-2 is closed condition, and only in maintenance or change when the first blasting piece device 6-1, the second blasting piece device 6-2, just by-pass valve control 5 is closed; In the time of maintenance safety valve 8, gas bleeder valve 9-1 need to be closed and open hand-operated valve 9-2.
Above embodiment is not limited only to protection domain of the present utility model, all modify based on basic thought of the present utility model or change all belong to protection domain of the present utility model.
Claims (5)
1. a synthesis gas preparing ethylene glycol oxonation device for safety relief, comprises the end socket of being located at oxonation device top, on described end socket, is connected with air inlet pipe, it is characterized in that: described end socket is provided with escape pipe, on described escape pipe, is provided with blasting piece device; Described air inlet pipe is provided with gas bleeder valve, and the outlet side of described gas bleeder valve is connected with safety valve, and the outlet side of described safety valve is all connected with rubber seal dry gas-holder by torch gas house steward with the end of described escape pipe.
2. the synthesis gas preparing ethylene glycol oxonation device of a kind of safety relief according to claim 1, is characterized in that: described end socket is provided with two escape pipes.
3. the synthesis gas preparing ethylene glycol oxonation device of a kind of safety relief according to claim 1 and 2, is characterized in that: on described escape pipe, be disposed with two blasting piece devices, between two blasting piece devices, be provided with Pressure gauge.
4. the synthesis gas preparing ethylene glycol oxonation device of a kind of safety relief according to claim 3, is characterized in that: described escape pipe is provided with the by-pass valve control of normally open, and the outlet side of by-pass valve control is connected with blasting piece device.
5. the synthesis gas preparing ethylene glycol oxonation device of a kind of safety relief according to claim 1, is characterized in that: described air inlet pipe is provided with hand-operated valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320872626.2U CN203678352U (en) | 2013-12-27 | 2013-12-27 | Safety releasing carbonylation reactor for preparing ethylene glycol from synthesis gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320872626.2U CN203678352U (en) | 2013-12-27 | 2013-12-27 | Safety releasing carbonylation reactor for preparing ethylene glycol from synthesis gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203678352U true CN203678352U (en) | 2014-07-02 |
Family
ID=51000315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320872626.2U Expired - Fee Related CN203678352U (en) | 2013-12-27 | 2013-12-27 | Safety releasing carbonylation reactor for preparing ethylene glycol from synthesis gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203678352U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105646218A (en) * | 2015-12-27 | 2016-06-08 | 安徽淮化股份有限公司 | High-temperature interlock esterification carbonylation unit for synthesis gas to glycol |
| WO2020061885A1 (en) * | 2018-09-27 | 2020-04-02 | 鹏辰新材料科技股份有限公司 | Production system for naphthalenesulfonic acid |
-
2013
- 2013-12-27 CN CN201320872626.2U patent/CN203678352U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105646218A (en) * | 2015-12-27 | 2016-06-08 | 安徽淮化股份有限公司 | High-temperature interlock esterification carbonylation unit for synthesis gas to glycol |
| WO2020061885A1 (en) * | 2018-09-27 | 2020-04-02 | 鹏辰新材料科技股份有限公司 | Production system for naphthalenesulfonic acid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205231142U (en) | Fire -retardant device of battery energy storage system | |
| CN203678352U (en) | Safety releasing carbonylation reactor for preparing ethylene glycol from synthesis gas | |
| CN203683424U (en) | Carbonylation reaction device for preventing temperature runaway in process of preparing ethylene glycol from synthesis gas | |
| CN203329236U (en) | Gas fire-extinguishing system container valve | |
| CN201551758U (en) | Explosion-proof system of flammable and explosive lotion cleaning machine | |
| CN204897791U (en) | Device of protection carbonylation catalyst in synthetic gas system ethylene glycol technology | |
| CN203346345U (en) | Coaling system utilizing byproduct carbon dioxide gas to perform pressure charging and relief on coal locks | |
| CN101793392A (en) | Method for power generation by using mash gas mixed-combustion boiler | |
| CN202208706U (en) | Safety automatic interlocking protecting device of batch-type gas making furnace of static bed | |
| CN203478838U (en) | Device for quickly starting air separation unit | |
| CN203545951U (en) | Burner cooling water system | |
| CN204897781U (en) | Methanol synthesis recovery unit that exits that speeds | |
| CN203830005U (en) | Nitrogen supply system | |
| CN201727990U (en) | Sodium hydride filter pressing hydraulic device | |
| CN203469954U (en) | Device for adding re-stabilization inhibitor into acrylic acid | |
| CN215102940U (en) | Regeneration system for esterification of ethylene glycol and methyl nitrite prepared from coal | |
| CN202520294U (en) | High-temperature and high-pressure thermal recovery steam injection pipeline decompression device for oil field | |
| CN204358439U (en) | A kind of fuel gas recycle device | |
| CN203836574U (en) | Nitrogen supply system of coke oven gas device | |
| CN203639154U (en) | Gas emptying system for hydrogenising tower and oxidizing tower of slurry reactor hydrogen peroxide device | |
| CN203010205U (en) | Air supply system used for benzene hydrogenation unit | |
| CN203625034U (en) | Three-in-one bidirectional multi-film anti-explosion synthesis furnace | |
| CN202131256U (en) | Cracked exhaust utilizing device in diketene production | |
| CN214637384U (en) | Nitrogen protection centrifugal device for azodiisobutyronitrile production | |
| CN204208231U (en) | Explosion suppressor structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20171227 |