CN106622038A - Load plug-in of superfine fiber membrane electrostatic adsorption catalyst and use method of load plug-in - Google Patents
Load plug-in of superfine fiber membrane electrostatic adsorption catalyst and use method of load plug-in Download PDFInfo
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- CN106622038A CN106622038A CN201611119181.5A CN201611119181A CN106622038A CN 106622038 A CN106622038 A CN 106622038A CN 201611119181 A CN201611119181 A CN 201611119181A CN 106622038 A CN106622038 A CN 106622038A
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- superfine fibre
- fibre film
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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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/008—Details of the reactor or of the particulate material; Processes to increase or to retard the rate of reaction
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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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00734—Controlling static charge
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Abstract
The invention discloses a load plug-in of a superfine fiber electrostatic adsorption catalyst and a use method of the load plug-in. The load plug-in mainly comprises a mercuric chloride catalyzing particle, an electro-adsorption superfine fiber membrane layer, a catalyst load layer and a static isolating layer, the catalyst load layer covers the surface of the mercuric chloride catalyzing particle, the static isolating layer covers the surface of the catalyst load layer, the electro-adsorption superfine fiber membrane layer is wrapped on the outermost layer, and electro-adsorption superfine fiber membrane electric terminals are arranged at the two ends of a tube plate flange. In the use process, the plug-ins are sequentially arranged in a heat exchanger, the two ends of the tube plate flange are powered on with a direct current power supply, the electro-adsorption superfine fiber membrane electric terminals are arranged at the two ends of the tube plate flange, so that an electric conduction fiber membrane contains even electric charges, finally the mixed gases are introduced into the heat exchanger filled with the mercuric chloride catalyst plug-in, and the gases react with the catalyst when passing through catalyst plug-in. According to the load plug-in of the superfine fiber electrostatic adsorption catalyst and the use method of the load plug-in, the use efficiency of the catalyst is improved, the reaction speed is increased, and the mercury contamination and treatment are also reduced.
Description
Technical field
The present invention relates to the load plug-in unit and its using method of superfine fibre film Electrostatic Absorption catalyst, belong to superfine fibre
Industrial application.
Background technology
In current Chemical Manufacture, the preparation of many products can all be applied to catalyst, and the cost of catalyst is relatively
Height, and then cause the production cost of product to increase.Catalyst granules can crush during the course of the reaction the particle for becoming ultra-fine, especially
Easily follow gaseous reaction product to escape to be lost in, on the one hand cause catalyst efficiency low, while causing a variety of environmental problems.Urgently
Require in chemical production technology, to reduce catalyst loss during the course of the reaction, improve reaction efficiency, reduce catalyst and use
Amount.
By taking the use of mercuric chleride catalyst in chemical industry for making chlorine and alkali as an example, the total hydrargyrum usage amount of current China is probably on 1200 tons of left sides
The right side, accounts for the 50% of world's total amount, is the manufacturing country of maximum hydrargyrum and country of consumption in the world；And generated by polyvinyl chloride by calcium carbide production is for I
State maximum use hydrargyrum industry, carbide account for more than 80% of production capacity in China PVC, occupy leading position；Hydrargyrum is a kind of rare heavy
Metal, poisonous, the domestic annual hydrargyrum for consuming all causes very big ground contamination and impact to environment and people.
The improvement one for preparing polrvinyl chloride to carbide now is to find new catalyst without mercury such as gold, this catalysis
The efficiency of agent is very low, and gold belongs to precious metal, increased preparation cost；Two is to adopt new technology, and new technology is changed greatly, into
This cost is high, and execution is difficult, and feasibility is not high；Three is to prepare polrvinyl chloride using low-mercury catalyst, during preparation
The hydrargyrum that will escape out by certain technique is removed.A kind of low cost, the low hydrargyrum for easily performing and the life of mercury-free polrvinyl chloride are there is no at present
Production. art or device.
Carbide prepares the technological process of PVC；HCl → HCl surge tanks → HCl precoolers+acetylene sand seal → blender
→ graphite cooler → porous filter → preheater → converter → acid separator → cooler → washing combined column → caustic wash tower
Cooler → mono- press → machine aftercooler → complete condenser → water separator → low tower charging spout before → steam-water separator → machine →
Low boiling tower → high boiling tower → finished product cooler → monomer storage tank.During carbide prepares PVC, mercuric chleride catalyst is placed in work
Property charcoal in make mercury catalyst catalyst granules, be placed in the heat exchanger tube in converter, hydrogen chloride and acetylene are catalyzed in mercury catalyst
Reaction is carried out in the presence of agent granule and heating generate vinyl chloride.The consumption of mercury element is divided into three parts in this process：First
Part is that water content in reacting gas is too high to cause mercuric chloride to meet water to form mercury ion；Part II is mercuric chleride catalyst
Grain is broken to cause hydrargyrum to be lost in dust granules；Part III is that reacting gas is insufficient contact with catalyst in course of reaction to be caused
The reaction later stage need to improve reaction temperature and promote reaction, and improving temperature can cause mercuric chloride to distil, and cause hydrargyrum to be consumed.
Produce in enterprise now the subject matter for facing be mercuric chleride catalyst loss is serious and subsequent products in
The complexity of removal of mercury technique, the production cost that these problems result in PVC is high.
Therefore, the present invention proposes a kind of load blocks and method of superfine fibre film Electrostatic Absorption catalyst, and conductance is ultra-fine
Fibrous membrane (micron order and nanoscale) has specific surface area big, and porosity is high, the features such as absorption property is strong, in situation about being powered
Under, conductance superfine fibre film has very strong absorption property to particle, and conductance superfine fibre film is uniformly wrapped in into catalyst
Particle surface is simultaneously powered, and can now reduce the loss of catalyst, reduces production cost etc..It is by mercuric chleride catalyst granule
Example, can effectively reduce the wear rate of mercuric chloride, and reaction temperature is maintained into stable, reduce the complexity of technique, reduce
The production cost of PVC, improves the production efficiency of PVC and reduces environmental pollution.
The content of the invention
The present invention relates to superfine fibre film Electrostatic Absorption mercuric chleride catalyst plug-in unit, applies and prepares PVC conversions in carbide
In heat exchanger tube in device.By in mercuric chleride catalyst particle surface uniform fold high temperature resistant superfine fibre film and the ultra-fine fibre of conductance
Dimension film, and conductance superfine fibre film is powered, make compound superfine fibre film that there is uniform CHARGE DISTRIBUTION, powered ultra-fine fibre
Mercury ion and ultra-fine mercuric chloride beaded catalyst that dimension film can be produced effectively during adsorption reaction, reduce mercuric chloride
The loss of catalyst, while superfine fibre can increase the contact area of mercuric chleride catalyst and reacting gas, it is to avoid reaction temperature
The unstable mercuric chloride distillation phenomenon for causing of degree.The present invention can be effectively reduced the consumption of mercuric chleride catalyst, and after improving
Continuous mercuric chleride catalyst handling process, the production efficiency that improve PVC, the consumption for reducing mercuric chleride catalyst and to environment
Pollution, the protection to environment has extraordinary effect.
In reactor, tube sheet flange fixes heat exchanger tube to superfine fibre film Electrostatic Absorption mercuric chleride catalyst plug-in application,
Multigroup catalyst insert is loaded in heat exchanger tube, and each catalyst insert is connected using serial interface.Superfine fibre film
Electrostatic Absorption mercuric chleride catalyst plug-in unit mainly includes mercuric chloride catalysed particulate, electro-adsorption superfine fibre film layer, catalyst load
Layer and electrostatic isolation layer, mercuric chloride catalysed particulate surface covers one layer of catalyst-carrying layer, and catalyst-carrying layer surface covers one
Layer electrostatic isolation layer, outermost layer wraps up one layer of electro-adsorption superfine fibre film, and electro-adsorption superfine fibre film electrical terminals are placed on pipe
The two ends of plate flange.
Superfine fibre film Electrostatic Absorption mercuric chleride catalyst plug-in unit proposed by the present invention, wherein electro-adsorption superfine fibre film
Layer, refers to the superfine fibre film with electric conductivity, by being powered to this layer of fibrous membrane so as to possess absorption mercury ion and ultra-fine
Mercuric chloride particle effect, effectively by mercury ion and ultra-fine mercuric chloride granular absorption on its surface.
Superfine fibre film Electrostatic Absorption mercuric chleride catalyst plug-in unit proposed by the present invention, wherein catalyst-carrying layer, are one
Layer has resistant to elevated temperatures superfine fibre film, and the layer superfine fibre film has high specific surface area, catalyst granules is spaced
Open, reacting gas is increased with catalyst contact area, the layer film makes reaction environment remain stable, effectively prevents temperature liter
Mercuric chloride that is high and causing distils.
Superfine fibre film Electrostatic Absorption mercuric chleride catalyst plug-in unit proposed by the present invention, by folding high temperature resistant superfine fibre
Loaded film wraps up mercuric chleride catalyst granule uniform close, reacts the ultra-fine grain for generating by fibrous membrane adsorbed close.
Superfine fibre film Electrostatic Absorption mercuric chleride catalyst plug-in unit proposed by the present invention, wherein electrostatic isolation layer, containing exhausted
Edge layer and screen layer two-layer, insulating barrier avoids electric current and reaches load layer from electro-adsorption superfine fibre film layer, and screen layer is shielded
The exchange of particles of electro-adsorption layer and load layer.
The using method of superfine fibre film Electrostatic Absorption mercuric chleride catalyst plug-in unit proposed by the present invention：First by mercuric chloride
Catalyst granules is uniformly wrapped with above-mentioned film, prepares well plug, and mercuric chloride catalysed particulate surface covers one layer of catalyst load
Layer, catalyst-carrying layer surface covers one layer of electrostatic isolation layer, and outermost layer wraps up one layer of electro-adsorption superfine fibre film；Then will insert
Part is arranged in order and is placed in heat exchanger, and connects DC source at the two ends of tube sheet flange, and electro-adsorption superfine fibre film connects electricity
Terminal is placed on the two ends of tube sheet flange and makes to contain uniform electric charge in conductance fibrous membrane；Finally mixed gas are passed into into filling
In the heat exchanger of mercuric chleride catalyst plug-in unit, gas is reacted when through catalyst insert with catalyst.The present invention is referred to
Catalyst insert and using method be equally applicable to the generic catalyst of mercuric chloride.
The advantage of the present invention：
1. the present invention proposes superfine fibre film Electrostatic Absorption mercuric chleride catalyst plug-in unit and its using method, and mercuric chloride is urged
Catalyst particles are wrapped up with conductance superfine fibre film, and the superfine fibre film of energization contains equally distributed electric charge, can effectively inhale
Attached superfine catalyst granule and mercury ion etc., improve the service efficiency of catalyst.
2. superfine fibre film Electrostatic Absorption mercuric chleride catalyst plug-in unit of the present invention, with higher specific surface area, increased
Reaction rate, the impact for avoiding superfine fibre film from reducing air pressure by the way that gas transfer rate is improved.
3. the using method of superfine fibre film Electrostatic Absorption mercuric chleride catalyst plug-in unit proposed by the present invention, catalyst is inserted
In the heat exchanger tube that part is placed in converter, this plug-in unit can effectively reduce the consumption of catalyst, reduce the pollution and process of hydrargyrum,
The technique that carbide prepares PVC is improved, is removed removal of mercury link in subsequent technique, so as to reduce production cost and energy consumption.
Description of the drawings
Fig. 1 is the using method schematic diagram of superfine fibre film Electrostatic Absorption mercuric chleride catalyst plug-in unit of the present invention.
Fig. 2 is superfine fibre film Electrostatic Absorption mercuric chleride catalyst plug-in unit side view of the present invention.
Fig. 3 is superfine fibre film Electrostatic Absorption mercuric chleride catalyst plug-in unit partial sectional view of the present invention.
In figure：1- heat exchanger tubes, 2- mercuric chleride catalysts, 3- catalyst-carrying layers, 4- electrostatic isolation layers, 5- electro-adsorption is ultra-fine
Fiber film layer, 6- serial interfaces, 7- electrical terminals, 8- tube sheet flanges.
Specific embodiment
The present invention proposes a kind of superfine fibre film Electrostatic Absorption catalyst insert and its using method, specifically with mercuric chloride
As a example by catalyst, as shown in figure 1, it mainly includes heat exchanger tube 1, mercuric chleride catalyst 2, catalyst-carrying layer 3, electrostatic isolation layer
4th, electro-adsorption superfine fibre film layer 5, serial interface 6, electrical terminals 7, tube sheet flange 8.Mercuric chleride catalyst 2 is loaded by catalyst
The uniform parcel of layer 3, one layer of electrostatic isolation layer 4 of surface uniform fold of catalyst-carrying layer 3, electro-adsorption superfine fibre film layer 5 is equal
Even parcel electrostatic isolation layer 4, as shown in Fig. 2 serial interface 6 is at the two ends of catalyst insert, heat exchanger tube 6 is placed in tube sheet flange
In 8, electrical terminals 7 are housed on tube sheet flange 8.Catalyst insert is integrally positioned in heat exchanger tube 1, each layer physical relationship is as schemed
Shown in 3, the catalyst insert for wrapping is sequentially placed in heat exchanger tube 1,20 catalyst inserts is placed in every heat exchanger tube 6,
Then 24V DC sources are connected at the two ends of tube sheet flange 8, heat exchanger is assembled to be positioned in PVC production technologies is operated.
Embodiment 1：
Such as Fig. 1, mercuric chleride catalyst is positioned in the middle of double-deck politef (PTFE) superfine fibre loaded film 3,
One layer of electrostatic isolation layer 4 of outer envelope (sealing coat includes insulating barrier and screen layer) of loaded film, the outside quilt of electrostatic isolation layer 4
Electro-adsorption superfine fibre film layer 5 is encapsulated, and integrally makes cylindrical shape, is formed gap with the internal diameter of heat exchanger tube 1 and is coordinated, every heat exchanger tube
20 catalyst inserts (such as Fig. 1) of interior placement, the length of heat exchanger tube is 3 meters, and tube sheet flange 8 is connected into 24V unidirectional currents.
In PVC production processes, catalyst insert is placed in the reaction unit of the mixed gas process of hydrogen chloride and ethylene, and to conductance
Superfine fibre film is powered, and through the test of month, the number of dropouts for finally drawing mercuric chloride was 0.04%, the dress before comparing
Put, mercuric chloride is lost in 1%, and this catalyst insert keeps effect clearly to catalyst.
Embodiment 2:
Such as Fig. 1, mercuric chleride catalyst granule politef (PTFFE) the superfine fibre load being placed in activated carbon
Film 3 is wrapped up, in one layer of electrostatic isolation layer 4 of outer envelope (sealing coat includes insulating barrier and screen layer) of loaded film, electrostatic isolation
The outside of layer 4 is encapsulated by electro-adsorption superfine fibre film layer 5, integrally makes cylindrical shape, is formed gap with the internal diameter of heat exchanger tube 1 and is matched somebody with somebody
Close, 20 catalyst inserts are placed in every heat exchanger tube, the length of heat exchanger tube is 3 meters, and tube sheet flange 8 is connected into 24V direct currents
Electricity.In PVC production processes, catalyst insert is placed in the reaction unit of the mixed gas process of hydrogen chloride and ethylene, and
Conductance superfine fibre film is powered, through the test of month, the number of dropouts for finally drawing mercuric chloride was 0.02%, before comparing
Device, mercuric chloride be lost in 1%, this catalyst insert to catalyst keep effect clearly.
Claims (7)
1. the load plug-in unit of superfine fibre film Electrostatic Absorption catalyst, it is characterised in that：Mainly include mercuric chloride catalysed particulate, electricity
Absorption superfine fibre film layer, catalyst-carrying layer and electrostatic isolation layer, mercuric chloride catalysed particulate surface covers one layer of catalyst and bears
Carrier layer, catalyst-carrying layer surface covers one layer of electrostatic isolation layer, and outermost layer wraps up one layer of electro-adsorption superfine fibre film.
2. the load plug-in unit of superfine fibre film Electrostatic Absorption catalyst according to claim 1, it is characterised in that：Electro-adsorption
Superfine fibre film layer is the superfine fibre film with electric conductivity.
3. the load plug-in unit of superfine fibre film Electrostatic Absorption catalyst according to claim 1, it is characterised in that：Catalyst
Load layer is one layer and has resistant to elevated temperatures superfine fibre film, and the layer superfine fibre film is spaced apart from each other catalyst granules.
4. the load plug-in unit of superfine fibre film Electrostatic Absorption catalyst according to claim 1, it is characterised in that：By folding
Folded high temperature resistant superfine fibre loaded film wraps up mercuric chleride catalyst granule uniform close, reacts the ultra-fine grain for generating by fiber
Film adsorbed close.
5. the load plug-in unit of superfine fibre film Electrostatic Absorption catalyst according to claim 1, it is characterised in that：Electrostatic every
Absciss layer contains insulating barrier and screen layer two-layer, and insulating barrier avoids electric current and reaches load layer, screen from electro-adsorption superfine fibre film layer
Cover the exchange of particles that layer shields electro-adsorption layer and load layer.
6. the superfine fibre film Electrostatic Absorption catalyst described in claim 1 load plug-in unit using method, it is characterised in that：
First by mercuric chleride catalyst granule thin film, uniformly parcel prepares well plug, and mercuric chloride catalysed particulate surface covers one layer of catalysis
Agent load layer, catalyst-carrying layer surface covers one layer of electrostatic isolation layer, and outermost layer wraps up one layer of electro-adsorption superfine fibre film；So
The load plug-in unit of superfine fibre film Electrostatic Absorption catalyst is arranged in order afterwards is placed in heat exchanger, and the two of tube sheet flange
The logical DC source of termination, the electro-adsorption superfine fibre film of the load plug-in unit of superfine fibre film Electrostatic Absorption catalyst be placed on pipe
The two ends electrical terminals connection of plate flange, makes to contain uniform electric charge in conductance fibrous membrane；Finally mixed gas are passed into and are filled out
In filling the heat exchanger of load plug-in unit of superfine fibre film Electrostatic Absorption catalyst, gas is being urged through superfine fibre film Electrostatic Absorption
During the load plug-in unit of agent, reacted with catalyst.
7. superfine fibre film Electrostatic Absorption catalyst according to claim 6 load plug-in unit using method, its feature
It is that the material of superfine fibre loaded film is double-deck politef, the load plug-in unit of superfine fibre film Electrostatic Absorption catalyst
Entirety makes cylindrical shape, forms gap with the internal diameter of heat exchanger tube and coordinates.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611119181.5A CN106622038B (en) | 2016-12-08 | 2016-12-08 | Supported insert of superfine fiber membrane electrostatic adsorption catalyst and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611119181.5A CN106622038B (en) | 2016-12-08 | 2016-12-08 | Supported insert of superfine fiber membrane electrostatic adsorption catalyst and application method thereof |
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| CN106622038A true CN106622038A (en) | 2017-05-10 |
| CN106622038B CN106622038B (en) | 2023-06-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109694042A (en) * | 2017-10-20 | 2019-04-30 | 中国石化工程建设有限公司 | A kind of reforming hydrogen-preparation reactor and its method of reburner and reformation hydrogen production reaction |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB573670A (en) * | 1943-09-29 | 1945-11-30 | Du Pont | Production of vinyl chloride |
| EP0700716A1 (en) * | 1994-09-12 | 1996-03-13 | Mitsubishi Chemical Corporation | Method for producing poly(vinyl chloride) |
| CN102145303A (en) * | 2011-02-01 | 2011-08-10 | 浙江大学 | Environmental-friendly mercuric chloride metal catalyst and preparation method thereof |
| CN104383859A (en) * | 2014-11-24 | 2015-03-04 | 苏州市锦翔压力容器制造有限公司 | Spiral plate type vinyl chloride synthetic converter |
| CN105433468A (en) * | 2015-11-12 | 2016-03-30 | 扬州大学 | Mask based on electrostatic adsorption and photocatalyst |
| CN206240451U (en) * | 2016-12-08 | 2017-06-13 | 北京化工大学 | The load plug-in unit of superfine fibre film Electrostatic Absorption catalyst |
-
2016
- 2016-12-08 CN CN201611119181.5A patent/CN106622038B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB573670A (en) * | 1943-09-29 | 1945-11-30 | Du Pont | Production of vinyl chloride |
| EP0700716A1 (en) * | 1994-09-12 | 1996-03-13 | Mitsubishi Chemical Corporation | Method for producing poly(vinyl chloride) |
| CN102145303A (en) * | 2011-02-01 | 2011-08-10 | 浙江大学 | Environmental-friendly mercuric chloride metal catalyst and preparation method thereof |
| CN104383859A (en) * | 2014-11-24 | 2015-03-04 | 苏州市锦翔压力容器制造有限公司 | Spiral plate type vinyl chloride synthetic converter |
| CN105433468A (en) * | 2015-11-12 | 2016-03-30 | 扬州大学 | Mask based on electrostatic adsorption and photocatalyst |
| CN206240451U (en) * | 2016-12-08 | 2017-06-13 | 北京化工大学 | The load plug-in unit of superfine fibre film Electrostatic Absorption catalyst |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109694042A (en) * | 2017-10-20 | 2019-04-30 | 中国石化工程建设有限公司 | A kind of reforming hydrogen-preparation reactor and its method of reburner and reformation hydrogen production reaction |
| CN109694042B (en) * | 2017-10-20 | 2021-03-05 | 中国石化工程建设有限公司 | Reforming hydrogen production reactor, reforming furnace thereof and reforming hydrogen production reaction method |
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| CN106622038B (en) | 2023-06-27 |
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