CN106334580A - 1,4-butanediol device BYD catalyst filtering and recovering device and method - Google Patents
1,4-butanediol device BYD catalyst filtering and recovering device and method Download PDFInfo
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- CN106334580A CN106334580A CN201610762868.4A CN201610762868A CN106334580A CN 106334580 A CN106334580 A CN 106334580A CN 201610762868 A CN201610762868 A CN 201610762868A CN 106334580 A CN106334580 A CN 106334580A
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- byd
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- pump
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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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/12—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides
- B01J31/122—Metal aryl or alkyl compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/36—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by reactions with formation of hydroxy groups, which may occur via intermediates being derivatives of hydroxy, e.g. O-metal
- C07C29/38—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by reactions with formation of hydroxy groups, which may occur via intermediates being derivatives of hydroxy, e.g. O-metal by reaction with aldehydes or ketones
- C07C29/42—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by reactions with formation of hydroxy groups, which may occur via intermediates being derivatives of hydroxy, e.g. O-metal by reaction with aldehydes or ketones with compounds containing triple carbon-to-carbon bonds, e.g. with metal-alkynes
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- 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
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a 1,4-butanediol device BYD catalyst filtering and recovering device. The device comprises at least two catalyst filters, a catalyst collecting tank and a catalyst pump. A BYD collecting tank is connected with the upper portions of the catalyst filters through a coarse BYD pump. The bottom of each catalyst filter is connected with a fine filter through a pipeline. The lower portion of each catalyst filter is connected with the catalyst collecting tank through a pipeline. The catalyst collecting tank is connected with a BYD reactor through a catalyst pump. A clean BYD solution of the outlet of a BYD feed pump is sent into the catalyst filters for backwashing. By additionally arranging the device at the upstream part of a fine filter, the replacement frequency of a cotton filter element of the fine filter is reduced, the labor intensity of an operator is greatly reduced, the loss of the cotton filter element of the fine filter is greatly reduced, production cost is reduced, the environment pollution caused by combustion of the cotton filter element is avoided, the BYD catalyst can be effectively recovered, and the utilization rate of a catalyst is increased.
Description
Technical field
The invention belongs to the production technical field of BDO, particularly to a kind of, acetylene-formaldehyde process is improved using invista
1,4- butanediol device byd(1,4- butynediols) filtration of solid catalyst (acetylene copper) in reactor outlet processing medium,
Retracting device and recovery method.
Background technology
BDO (Isosorbide-5-Nitrae-butanediol, abbreviation bdo) is a kind of important basic organic chemical industry and fine chemistry industry
Raw material, of many uses.Its multiple derivants are all to have the fine chemical product of high additive value, are widely used in national economy
In multiple fields.According to different raw material routes, the production method of established BDO has acetylene-formaldehyde process, butadiene second
Acyloxylation method, dichloro-butenes Hydrolyze method, 1-propenol-3 hydrogen formolation method and maleic anhydride hydrogenation method etc..
At present, in China it is also the alkynes aldehyde adopting most production methods to be with acetylene and formaldehyde as primary raw material in the world
Method.In the BDO device improveing acetylene-formaldehyde process using invista, raw material acetylene and formaldehyde are in the work of catalyst acetylene copper
With under synthesize byd(1,4- butynediols in byd reactor), the byd solution of generation passes through 26 built-in wax candles of reactor
Filter produces to byd collecting tank, and wax candle filter adopts the version of the outside colligation filter bag of stainless steel insert, for
During byd extraction, solid acetylene copper catalyst is retained in reactor.Wax candle filter surfaces are subject to as the filter bag of filter element
To the restriction of the factors such as sewing tech, artificial colligation quality, inevitably there is the situation of solid catalyst partial compromise.For
Prevent catalyst from entering follow-up system, the normal production in impact downstream, existing procedure is provided with use on the pipeline of thick byd pump discharge
Cotton filter core fine filter in filtering catalyst powder.
From the point of view of more than domestic ten, set improves the practical operation situation of acetylene-formaldehyde process BDO device using invista, essence
The replacement frequency of fine filtrator filter element very high (filter element specification: long 30 ", diameter 2.5 ", every group is not less than 60；Filter element material:
Stainless steel insert, cotton fiber filter layer).Under normal operating operating mode, one group of filter element need to be changed within 2 to 3 days, particularly urge in byd
Agent prepares the initial stage, and because the precoated shet on wax candle filter cloth is not formed, catalyst leakage amount is bigger, fine filter
Filter element will change in 1 day more than two.For a set of BDO device producing 100000 tons per year, need every year to change
Cotton filter core radical generally all more than 12000.
It can be seen that, frequently change the labor intensity that filter element not only considerably increases operator, also increase consumptive material simultaneously
Loss, be unfavorable for the control of device production cost.And it is infected with catalyst fines and the useless filter element of byd medium cannot reclaim, only
Can carry out burning and destroy, also can generation environment pollute causing the wasting of resources simultaneously.
Content of the invention
It is an object of the invention to: for above-mentioned problem, provide one kind that fine filtering not only can be greatly reduced
The loss of device filter element, reduce production cost, it is to avoid environmental pollution, simultaneously also can efficient recovery byd catalyst, increase catalyst profit
With the 1,4- butanediol device byd catalyst filtration of rate, retracting device and recovery method.
The technical scheme is that and be achieved in that: BDO device byd catalyst filtration, retracting device, bag
Include byd reactor, byd collecting tank, fine filter, thick byd pump, byd storage tank, byd feed pump, catalyst filtration machine, catalysis
Agent collecting tank and catalyst pump, the byd solution generating in described byd reactor passes through the built-in wax candle of byd reactor and filters
Device produces to byd collecting tank, and described byd collecting tank is connected with thick byd pump, and described fine filter is arranged on thick byd pump discharge
Pipeline on, described fine filter is connected with byd storage tank, described byd storage tank be connected with byd feed pump it is characterised in that: institute
State fine filter upstream and be provided with least two byd catalyst filtration machines, described byd collecting tank is by thick byd pump and catalysis
Agent filter top connects, and described catalyst filtration motor spindle is connected with fine filter by pipeline, described catalyst filtration
Machine bottom is connected with catalyst collection groove by pipeline, and described catalyst collection groove is connected with byd reactor by catalyst pump,
The clean byd solution of described byd charging pump discharge returns to and carries out backwash in catalyst filtration machine.
BDO device byd catalyst filtration of the present invention, retracting device, its described catalyst filtration machine is adopted
With the board-like filter disc of metal sintering as filter element, during on-line operation, described filter disc remains static, when offline, described filter
Disk orders about rotation, and the scraper cooperation with the internal setting of catalyst filtration machine by motor, and the filter cake on filter disc is carried out scraping cutting.
BDO device byd catalyst filtration of the present invention, retracting device, its described catalyst filtration machine is
Two, wherein one on-line operation, another offline standby, online catalyst filtration machine is to carrying secretly of being come by thick byd pumping
The byd solution of catalyst fines is filtered, offline after catalyst filtration machine utilize the clean byd that byd feeds pumped back molten
Liquid is backwash liquor, and recoil removes the filter cake on filter disc, forms catalyst dope and returns the recycling of byd reactor.
BDO device byd catalyst filtration, the recovery method of retracting device, it comprises the following steps:
A), raw material acetylene and formaldehyde synthesize byd, the byd solution of generation in the presence of catalyst acetylene copper in byd reactor
Produced to byd collecting tank by the built-in wax candle filter of reactor；
B), the byd solution of entrained catalyst powder is pumped into online catalyst filtration machine by thick byd, and filtering and removing is most absolutely
Filtrate after number solid catalyst enters byd storage tank through fine filter, and rises force feed by the byd feed pump of byd sump bottom
Follow-up byd refining step, wherein, catalyst filtration machine is that one to open one standby, when the pressure reduction rising in online catalyst filtration machine
During to setting value, switch the catalyst filtration machine coming into operation standby；
C), offline catalyst filtration machine starts self-cleaning, backwash procedure, and backwash liquor adopts the clean byd of byd charging pump discharge molten
Liquid, the catalyst dope deviate from by catalyst filtration machine is collected catalyst collection groove and is delivered to byd reactor by catalyst pump
Carry out reclaiming, utilize.
BDO device byd catalyst filtration of the present invention, the recovery method of retracting device, it is in described step
Rapid b) in, during catalyst filtration machine on-line operation, filter disc remains static, and process stream passes through the filtrate of filter disc entrance hollow
Filter is discharged, the most of solid catalyst powder in material is retained in filter disc outer surface gradually shape after collecting chamber
Become filter cake, the pressure drop of filter increases with the increase of filter cake thickness, when pressure drop reaches setting value, switch the redundant filter that comes into operation
Machine.
BDO device byd catalyst filtration of the present invention, the recovery method of retracting device, it is in described step
Rapid c) in, when offline, by the rotation of filter disc, the filter cake of its surface attachment is by setting inside filter for catalyst filtration machine
Scraper cuts to minimum residual filter cake thickness, carries out backwash afterwards, and downstream cleaning with pressure byd solution delivers to filter by pipeline
Filtrate collection chamber, recoil removes the filter cake of residual on filter disc, and the catalyst dope that self-cleaning, backwash produces returns byd reactor
Recycled, after catalyst dope emptying in catalyst filtration machine, this catalyst filtration machine enters resting state.
The present invention, by being additionally arranged a set of byd catalyst filtration, recovery system in fine filter upstream, decreases fine
The replacement frequency of filter cotton filter core, greatly reduces the labor intensity of operator, and drastically reduce the area fine filtering
The loss of device cotton filter core, reduces production cost, alleviates and burns the environmental pollution that cotton filter core causes, simultaneously can also be to byd
Catalyst carries out efficient recovery, increases the utilization rate of catalyst.
By technical scheme, a set of scale is that 100,000 tons of BDO device is expected to reduce for 1 year
10000 about filter cotton filter core loss, based on 260 yuan of single cotton filter core, consumptive material expense RMB 2,600,000 can be saved
Unit；Recycle byd synthetic catalyst more than 10 ton, 1,500,000 yuan of equivalent RMB simultaneously.
Brief description
Fig. 1 is the process flow diagram of the present invention.
In figure labelling: 1 is byd reactor, 2 is byd collecting tank, and 3 is fine filter, and 4 is thick byd pump, and 5 is byd storage
Groove, 6 is byd feed pump, and 7 is catalyst filtration machine, and 8 is catalyst collection groove, and 9 is catalyst pump, and 10 is filter disc.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.
As shown in figure 1, BDO device byd catalyst filtration, retracting device, described BDO device byd
Catalyst filtration, retracting device include byd reactor 1, byd collecting tank 2, fine filter 3, thick byd pump 4, byd storage tank 5,
Byd feed pump 6, catalyst filtration machine 7, catalyst collection groove 8 and catalyst pump 9, the byd generating in described byd reactor 1
Solution is produced to byd collecting tank 2 by the built-in wax candle filter of byd reactor 1, and described byd collecting tank 2 is with thick byd pump 4 even
Connect, described fine filter 3 is arranged on the pipeline of thick byd pump 4 outlet, and described fine filter 3 is connected with byd storage tank 5, institute
State byd storage tank 5 to be connected with byd feed pump 6, described fine filter 3 upstream is provided with least two byd catalyst filtration machines 7,
Described byd collecting tank 2 is connected with catalyst filtration machine 7 top by thick byd pump 4, and pipe is passed through in described catalyst filtration machine 7 bottom
Road is connected with fine filter 3, and described catalyst filtration machine 7 bottom is connected with catalyst collection groove 8 by pipeline, described catalysis
Agent collecting tank 8 is connected with byd reactor 1 by catalyst pump 9, and the clean byd solution of described byd feed pump 6 outlet returns to
Carry out backwash in catalyst filtration machine 7.
Wherein, described catalyst filtration machine 7 adopts the board-like filter disc of metal sintering 10 is self-cleaning filter element, filtering accuracy
5 μm, during on-line operation, described filter disc 10 remains static, and when offline, described filter disc 10 orders about rotation by motor, and with
The scraper cooperation of the internal setting of catalyst filtration machine 7, carries out scraping cutting to the filter cake on filter disc 10.
In the present embodiment, described catalyst filtration machine 7 is two, wherein one on-line operation, another offline standby,
Online catalyst filtration machine 7 filters to the byd solution of the entrained catalyst powder sent by thick byd pump 4, offline after
Catalyst filtration machine 7 is backwash liquor using the clean byd solution that byd feed pump 6 is sent back to, and recoil removes the filter cake on filter disc 10,
Form catalyst dope and return byd reactor 1 and recycle.
A kind of BDO device byd catalyst filtration, the recovery method of retracting device, comprise the following steps:
A), raw material acetylene and formaldehyde synthesize byd, the byd solution of generation in the presence of catalyst acetylene copper in byd reactor
Produced to byd collecting tank by the built-in wax candle filter of reactor.
B), the byd solution of entrained catalyst powder is pumped into online catalyst filtration machine by thick byd, and filtering and removing is exhausted
Filtrate after most solid catalyst enters byd storage tank through fine filter, and the byd feed pump liter by byd sump bottom
Force feed follow-up byd refining step, wherein, one standby, pressure reduction in online catalyst filtration machine opened by catalyst filtration machine for one
When being increased to 3bar, switch the catalyst filtration machine coming into operation standby.
C), offline catalyst filtration machine starts self-cleaning, backwash procedure, and backwash liquor adopts byd to feed the cleaning of pump discharge
Byd solution, the catalyst dope deviate from by catalyst filtration machine collects catalyst collection groove and to deliver to byd by catalyst pump anti-
Device is answered to carry out reclaiming, utilize.
Wherein, during the on-line operation of catalyst filtration machine, filter disc remains static, and process stream enters hollow by filter disc
Filtrate collection chamber after discharge filter, the most of solid catalyst powder in material is retained in filter disc outer surface simultaneously
Gradually form filter cake, the pressure drop of filter increases with the increase of filter cake thickness, when pressure drop reaches setting value, switching comes into operation standby
Use filter., when offline, by the rotation of filter disc, the filter cake of its surface attachment is by the internal setting of filter for catalyst filtration machine
Scraper cut to minimum residual filter cake thickness, carry out backwash afterwards, downstream cleaning with pressure byd solution delivers to filtration by pipeline
The filtrate collection chamber of machine, recoil removes the filter cake of residual on filter disc, and the catalyst dope that self-cleaning, backwash produces returns byd reaction
Device is recycled, and after catalyst dope emptying in catalyst filtration machine, this catalyst filtration machine enters resting state.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (6)
1.1,4- butanediol device byd catalyst filtration, retracting device, including byd reactor (1), byd collecting tank (2), fine
Filter (3), thick byd pump (4), byd storage tank (5), byd feed pump (6), catalyst filtration machine (7), catalyst collection groove (8)
And catalyst pump (9), the byd solution generating in described byd reactor (1) is by the built-in wax candle filtration of byd reactor (1)
Device produces to byd collecting tank (2), and described byd collecting tank (2) is connected with thick byd pump (4), and described fine filter (3) is arranged on
On the pipeline that thick byd pump (4) exports, described fine filter (3) is connected with byd storage tank (5), described byd storage tank (5) and byd
Feed pump (6) connect it is characterised in that: described fine filter (3) upstream is provided with least two byd catalyst filtration machines
(7), described byd collecting tank (2) is connected with catalyst filtration machine (7) top by thick byd pump (4), described catalyst filtration machine
(7) bottom is connected with fine filter (3) by pipeline, and described catalyst filtration machine (7) bottom is passed through pipeline and received with catalyst
Collection groove (8) connects, and described catalyst collection groove (8) is connected with byd reactor (1) by catalyst pump (9), described byd charging
The clean byd solution that pump (6) exports returns in catalyst filtration machine (7) and carries out backwash.
2. BDO device byd catalyst filtration according to claim 1, retracting device it is characterised in that: described
It is filter element that catalyst filtration machine (7) adopts the board-like filter disc of metal sintering (10), and during on-line operation, described filter disc (10) is in
Resting state, when offline, described filter disc (10) orders about rotation by motor, and with catalyst filtration machine (7) inside the scraping of setting
Knife coordinates, and the filter cake on filter disc (10) is carried out scraping cutting.
3. BDO device byd catalyst filtration according to claim 1 and 2, retracting device it is characterised in that:
Described catalyst filtration machine (7) is two, wherein one on-line operation, another offline standby, online catalyst filtration machine
(7) the byd solution of the entrained catalyst powder sent by thick byd pump (4) is filtered, offline after catalyst filtration machine
(7) the clean byd solution sent back to using byd feed pump (6) is backwash liquor, and recoil removes the filter cake on filter disc (10), and formation is urged
Agent dope simultaneously returns byd reactor (1) recycling.
4. BDO device byd catalyst filtration, retracting device recovery method it is characterised in that: include following walking
Rapid:
A), raw material acetylene and formaldehyde synthesize byd, the byd solution of generation in the presence of catalyst acetylene copper in byd reactor
Produced to byd collecting tank by the built-in wax candle filter of reactor；
B), the byd solution of entrained catalyst powder is pumped into online catalyst filtration machine by thick byd, and filtering and removing is most absolutely
Filtrate after number solid catalyst enters byd storage tank through fine filter, and rises force feed by the byd feed pump of byd sump bottom
Follow-up byd refining step, wherein, catalyst filtration machine is that one to open one standby, when the pressure reduction rising in online catalyst filtration machine
During to setting value, switch the catalyst filtration machine coming into operation standby；
C), offline catalyst filtration machine starts self-cleaning, backwash procedure, and backwash liquor adopts the clean byd of byd charging pump discharge molten
Liquid, the catalyst dope deviate from by catalyst filtration machine is collected catalyst collection groove and is delivered to byd reactor by catalyst pump
Carry out reclaiming, utilize.
5. BDO device byd catalyst filtration according to claim 4, the recovery method of retracting device, it is special
Levy and be: in described step b), during catalyst filtration machine on-line operation, filter disc remains static, process stream passes through filter disc
Filter is discharged, the most of solid catalyst powder in material is retained in filter disc after entering the filtrate collection chamber of hollow
Outer surface simultaneously gradually forms filter cake, and the pressure drop of filter increases with the increase of filter cake thickness, when pressure drop reaches setting value, cuts
Change the redundant filter machine that comes into operation.
6. BDO device byd catalyst filtration according to claim 4, the recovery method of retracting device, it is special
Levy and be: in described step c), catalyst filtration machine when offline, by the rotation of filter disc, the filter cake quilt of its surface attachment
Inside filter, the scraper of setting cuts to minimum residual filter cake thickness, carries out backwash afterwards, downstream cleaning with pressure byd solution
Deliver to the filtrate collection chamber of filter by pipeline, recoil removes the filter cake of residual on filter disc, the catalyst that self-cleaning, backwash produces is dense
Liquid returns byd reactor and is recycled, and after catalyst dope emptying in catalyst filtration machine, this catalyst filtration machine enters
Enter resting state.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610762868.4A CN106334580A (en) | 2016-08-30 | 2016-08-30 | 1,4-butanediol device BYD catalyst filtering and recovering device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610762868.4A CN106334580A (en) | 2016-08-30 | 2016-08-30 | 1,4-butanediol device BYD catalyst filtering and recovering device and method |
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| CN106334580A true CN106334580A (en) | 2017-01-18 |
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| CN201610762868.4A Pending CN106334580A (en) | 2016-08-30 | 2016-08-30 | 1,4-butanediol device BYD catalyst filtering and recovering device and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111589836A (en) * | 2019-09-16 | 2020-08-28 | 徐光耀 | Method for treating waste containing acetylides |
| CN113908615A (en) * | 2021-11-03 | 2022-01-11 | 西部宝德科技股份有限公司 | 1, 4-butynediol filtration and recovery and catalyst recovery device and method thereof |
| CN113926389A (en) * | 2021-11-08 | 2022-01-14 | 浙江省天正设计工程有限公司 | Integrated closed recycling device and process for flammable solid catalyst |
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| CN111589836A (en) * | 2019-09-16 | 2020-08-28 | 徐光耀 | Method for treating waste containing acetylides |
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| CN113926389A (en) * | 2021-11-08 | 2022-01-14 | 浙江省天正设计工程有限公司 | Integrated closed recycling device and process for flammable solid catalyst |
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