CN110152577A - A kind of device and method removing propylene tar-like substance - Google Patents
A kind of device and method removing propylene tar-like substance Download PDFInfo
- Publication number
- CN110152577A CN110152577A CN201910563916.0A CN201910563916A CN110152577A CN 110152577 A CN110152577 A CN 110152577A CN 201910563916 A CN201910563916 A CN 201910563916A CN 110152577 A CN110152577 A CN 110152577A
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- Prior art keywords
- valve
- propylene
- distributor
- tower
- inlet valve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D301/00—Preparation of oxiranes
- C07D301/02—Synthesis of the oxirane ring
- C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
- C07D303/02—Compounds containing oxirane rings
- C07D303/04—Compounds containing oxirane rings containing only hydrogen and carbon atoms in addition to the ring oxygen atoms
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A kind of device and method removing propylene tar-like substance, is related to a kind of chemical production device.Including reaction tower, distributor is equipped in longitudinal tower body of reaction tower, the distributor is connected by inlet valve with propylene feed pipeline, it is equipped between the inlet valve and distributor into tower valve, into expansion joint is equipped between tower valve and inlet valve, the inlet valve, expansion joint, connect connection into tower valve, distributor, and showering guilding valve is equipped between the inlet valve and expansion joint, pipeline between described showering guilding valve one end and inlet valve and expansion joint penetrates through connection, other end outlet.A kind of chemical agent is injected to Propylene pipes by the expansion joint that is equipped with and showering guilding valve to impregnate, and enters process system after dissolving the tar-like substance of distributor.The chemical agent will not impact production of propylene oxide, and without carrying out parking process.
Description
Technical field
The present invention relates to a kind of a kind of dresses of tar-like substance in chemical production device more particularly to removal Propylene pipes
It sets and method.
Background technique
Propylene oxide or it is other use propylene in the production technology of raw material or product, Propylene pipes, valve, distribution
The positions such as device, spray head can accumulate tar-like substance in long-play.It is dry that tar-like substance in Propylene pipes is difficult processing
Only, even can not also blow down in long-time steam blowing thoroughly, analysis of moveable fire qualification is also abnormally dangerous, because taking offence when welding
High temperature can cause tar-like substance to volatilize, and cause flammable Gas content in pipeline exceeded, therefore propylene class pipeline is get angry should especially
Carefully.In continuous production operation, when the accumulation of propylene tar-like substance is more, propylene distributor, valve or spray head can be blocked, is made
It is interrupted at material, to cause technology accident.
Summary of the invention
Cause propylene feed interruption to prevent from occurring during production run the blocking of the positions tar-like substance such as distributor,
The present invention provides a kind of device for removing propylene tar-like substance, while providing a kind of method for removing propylene tar-like substance.
It is impregnated by injecting chemical agent to Propylene pipes, enters process system after tar-like substance dissolution.The chemical agent is not
Production of propylene oxide can be impacted, and without carrying out parking process.
In order to achieve the above object, the technical solution adopted by the present invention is that:
A kind of device removing propylene tar-like substance, including reaction tower, longitudinal tower body of reaction tower is interior to be equipped with distributor,
The distributor is connected by inlet valve with propylene feed pipeline, is equipped between the inlet valve and distributor into tower
Valve, into expansion joint is equipped between tower valve and inlet valve, the inlet valve, expansion joint, connect connection into tower valve, distributor,
Showering guilding valve, the pipeline between described showering guilding valve one end and inlet valve and expansion joint are equipped between the inlet valve and expansion joint
Perforation connection, other end outlet, the expansion joint with into tower valve pass through flanged joint.
A method of removal propylene tar-like substance, comprising the following steps:
1) when propylene feed flow reduces always, and showering guilding valve is opened after the inlet valve of propylene distributor is closed do not have
When liquid flows out, that is, it can determine whether this group of propylene distributor blocking；
2) when propylene distributor blocks, close the inlet valve of this group of distributor and into tower valve, open showering guilding valve into
Row gas exhaust treatment；
3) showering guilding valve is closed, chemical solvent flow in pipes is connected；
4) showering guilding valve is opened, chemical solvent skirt is injected into expansion joint；
5) it opens into tower valve, stops 4-6 minutes or so, chemical solvent is made to come into full contact with distributor internal resistance plug thing；
6) showering guilding valve is closed, slowly opens inlet valve, observes propylene traffic conditions, if propylene flow does not increase, then table
Bright propylene pressure is insufficient or chemical solvent soaking time is inadequate, can be used and introduces high pressure nitrogen or extension chemical solution from showering guilding valve
Agent soaking time solves.
Wherein, it is opened in step 5) into tower valve, the residence time is 5 minutes.The chemical solvent is propylene oxide.
The ingenious place of the present invention is that the chemicals used, will not be raw to propylene oxide for product propylene or crude product
Production. art impacts, and propylene oxide can be carried out recycling during subsequent rectifying, therefore processing cost is lower.Normal condition
Under, it can be not parking, directly from leaching or other spare mouth injection propylene oxide is led, parking is avoided to lose.Tar-like substance dissolution
Entering distillation system afterwards finally can effectively avoid the accumulation of tar-like substance as process units is discharged in waste liquid.
Detailed description of the invention:
Fig. 1 is schematic structural diagram of the device of the invention:
It is as shown in the figure: 1, reaction tower；2, distributor；3, inlet valve；4, propylene feed pipeline；5, into tower valve；6, expansion joint；
7, showering guilding valve.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
By attached drawing 1 it is found that apparatus of the present invention include reaction tower 1, distributor 2 is equipped in longitudinal tower body of reaction tower 1, it is described
Distributor 2 be connected with propylene feed pipeline 4 by inlet valve 3, equipped with into tower between the inlet valve 3 and distributor 2
Valve 5, into expansion joint 6 is equipped between tower valve 5 and inlet valve 3, the inlet valve 3, expansion joint 6 are passed through into tower valve 5,2 phase of distributor
Lead to and connect, showering guilding valve 7, described 7 one end of showering guilding valve and inlet valve 3 and expansion are equipped between the inlet valve 3 and expansion joint 6
Pipeline between section 6 penetrates through connection, other end outlet.
Six groups of distributors 2 are equipped in 1 tower body of reaction tower of the present invention altogether, every group of distributor 2 is all made of identical mode and third
Alkene feeding pipe 4 is connected.
When distributor 2 blocks, chemical solvent is carried out by the expansion joint 6 being equipped with and is poured into, is realized to 2 internal congestion of distributor
The dissolution of object.The showering guilding valve 7 being equipped with can be detected to whether distributor 2 blocks, while being introduced nitrogen by showering guilding valve 7 and being increased
Pressure carries out auxiliary dissolution to the obturator in distributor 2 and distributor 2 is made to accelerate perforation.
The method of apparatus of the present invention removal propylene tar-like substance is:
1. opening showering guilding valve 7 when propylene feed flow reduces always, and after the inlet valve of propylene distributor 23 is closed
When there is no liquid outflow, that is, it can determine whether that this group of propylene distributor 2 blocks；
2. closing the inlet valve 3 of this group of distributor 2 when propylene distributor 2 blocks and into tower valve 5, opening leading leaching
Processing is exhausted in valve 7；
3. closing showering guilding valve 7, chemical solvent flow in pipes is connected；
4. opening showering guilding valve 7, chemical solvent skirt is injected into expansion joint 6；
5. opening into tower valve 5, stops 4-6 minutes or so, chemical solvent is made to come into full contact with 2 internal resistance plug thing of distributor；
6. closing showering guilding valve 7, inlet valve 3 is slowly opened, observes propylene traffic conditions, if propylene flow does not increase, then
Show that propylene pressure is insufficient or chemical solvent soaking time is inadequate, can be used and introduce high pressure nitrogen or extensionization from showering guilding valve 7
Learn the solution of solvent soaking time.
Six groups of distributors 2 are equipped in 1 tower body of reaction tower of the present invention altogether, the minimizing technology of obturator is identical.The present invention is made
Chemical solvent is product propylene or crude product.
The problem of device and method through the invention, effective solution distributor obstruction, effect is ideal.In addition, system
When parking maintenance, Propylene pipes are got angry processing if necessary, can will be after two end seal blind plates be isolated in pretreatment Propylene pipes, injection
After propylene oxide solution is soaked for a period of time, solution is discharged and is recycled.Then, with steam blowing pipeline, propylene oxide boiling
Point is lower, it is easy to remove clean.
Claims (5)
1. a kind of device for removing propylene tar-like substance, it is characterized in that: including reaction tower (1), longitudinal tower body of reaction tower (1)
Interior to be equipped with distributor (2), the distributor (2) is connected by inlet valve (3) with propylene feed pipeline (4), it is described into
Expect to be equipped between valve (3) and distributor (2) into tower valve (5), is equipped with expansion joint (6) between tower valve (5) and inlet valve (3), institute
The inlet valve (3) stated, expansion joint (6), connect connection, the inlet valve (3) and expansion joint into tower valve (5), distributor (2)
(6) showering guilding valve (7) are equipped between, the pipeline perforation between the showering guilding valve (7) one end and inlet valve (3) and expansion joint (6)
Connection, other end outlet.
2. it is according to claim 1 removal propylene tar-like substance device, it is characterized in that: the expansion joint (6) with
Pass through flanged joint into tower valve (5).
3. a kind of method for removing propylene tar-like substance, it is characterized in that the following steps are included:
1) when propylene feed flow reduces always, and will the inlet valve of propylene distributor (2) (3) close after open showering guilding valve
(7) without liquid outflow when, that is, it can determine whether this group of propylene distributor (2) blocking；
2) when propylene distributor (2) blocks, inlet valve (3) He Jinta valve (5) of this group of distributor (2) is closed, is opened
Processing is exhausted in showering guilding valve (7)；
3) showering guilding valve (7) are closed, connects chemical solvent flow in pipes；
4) showering guilding valve (7) are opened, chemical solvent skirt is injected into expansion joint (6)；
5) it opens into tower valve (5), stops 4-6 minutes or so, chemical solvent is made to come into full contact with distributor (2) internal resistance plug thing；
6) showering guilding valve 7 is closed, slowly opens inlet valve (3), observes propylene traffic conditions, if propylene flow does not increase, then table
Bright propylene pressure is insufficient or chemical solvent soaking time is inadequate, can be used and introduces high pressure nitrogen or extensionization at showering guilding valve (7)
Learn the solution of solvent soaking time.
4. the method for removal propylene tar-like substance according to claim 3, it is characterized in that: being opened in step 5) into tower valve
(5), the residence time is 5 minutes.
5. the method for removal propylene tar-like substance according to claim 3, it is characterized in that: the chemical solvent is ring
Ethylene Oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910563916.0A CN110152577B (en) | 2019-06-26 | 2019-06-26 | Device and method for removing propylene tar matters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910563916.0A CN110152577B (en) | 2019-06-26 | 2019-06-26 | Device and method for removing propylene tar matters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110152577A true CN110152577A (en) | 2019-08-23 |
| CN110152577B CN110152577B (en) | 2023-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910563916.0A Active CN110152577B (en) | 2019-06-26 | 2019-06-26 | Device and method for removing propylene tar matters |
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| Country | Link |
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| CN (1) | CN110152577B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1940071A1 (en) * | 1969-08-06 | 1971-02-18 | Theodor Schuchardt Gmbh & Co D | Reaction tower for continuous chemical - processes |
| CN203144359U (en) * | 2013-01-14 | 2013-08-21 | 山西潞安矿业(集团)有限责任公司 | Gas cooling system of Lurgi gas furnace |
| CN203598807U (en) * | 2013-11-28 | 2014-05-21 | 山东蓝星东大化工有限责任公司 | Device for producing epoxypropane by chlorohydrination |
| CN203750507U (en) * | 2014-02-18 | 2014-08-06 | 开封龙宇化工有限公司 | Anti-blocking blowing device of gaseous phase feeding pipeline |
| CN104437267A (en) * | 2013-09-24 | 2015-03-25 | 中国石油化工股份有限公司 | Device for preparing olefin with oxygen compounds and application of device for preparing olefin with oxygen compounds |
| CN206356331U (en) * | 2016-11-03 | 2017-07-28 | 新疆广汇新能源有限公司 | Preventing clogging up device in raw gas cooling procedure |
| CN210584881U (en) * | 2019-06-26 | 2020-05-22 | 天津大沽化工股份有限公司 | Device for removing propylene tar substances |
-
2019
- 2019-06-26 CN CN201910563916.0A patent/CN110152577B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1940071A1 (en) * | 1969-08-06 | 1971-02-18 | Theodor Schuchardt Gmbh & Co D | Reaction tower for continuous chemical - processes |
| CN203144359U (en) * | 2013-01-14 | 2013-08-21 | 山西潞安矿业(集团)有限责任公司 | Gas cooling system of Lurgi gas furnace |
| CN104437267A (en) * | 2013-09-24 | 2015-03-25 | 中国石油化工股份有限公司 | Device for preparing olefin with oxygen compounds and application of device for preparing olefin with oxygen compounds |
| CN203598807U (en) * | 2013-11-28 | 2014-05-21 | 山东蓝星东大化工有限责任公司 | Device for producing epoxypropane by chlorohydrination |
| CN203750507U (en) * | 2014-02-18 | 2014-08-06 | 开封龙宇化工有限公司 | Anti-blocking blowing device of gaseous phase feeding pipeline |
| CN206356331U (en) * | 2016-11-03 | 2017-07-28 | 新疆广汇新能源有限公司 | Preventing clogging up device in raw gas cooling procedure |
| CN210584881U (en) * | 2019-06-26 | 2020-05-22 | 天津大沽化工股份有限公司 | Device for removing propylene tar substances |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110152577B (en) | 2023-08-29 |
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