CN210302522U

CN210302522U - Oligomer emulsion layer demulsification device for C5 petroleum resin production

Info

Publication number: CN210302522U
Application number: CN201921099529.8U
Authority: CN
Inventors: 张素芳; 程露露; 郭书成; 陈洁; 章勇; 张陈全; 牛凯; 姚婷婷
Original assignee: Anhui Tongxin New Materials Technology Co ltd
Current assignee: Anhui Tongxin New Materials Technology Co ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-04-14
Anticipated expiration: 2029-07-12

Abstract

The utility model discloses a low polymer emulsion layer breakdown of emulsion device for production of C5 petroleum resin belongs to petroleum resin production technical field. The utility model discloses a oligomer emulsion breaking device for production of C5 petroleum resin, including strip tower, oligomer pans, breakdown of emulsion stirred tank and centrifuge, the gas phase pipeline at strip tower top links to each other through the feed inlet of condenser with the condensate tank, and wherein the oligomer discharging pipe of condensate tank bottom links to each other with the feed inlet of oligomer pans, and the oligomer pans pass through the emulsion conveyer pipe and link to each other with breakdown of emulsion stirred tank and centrifuge in proper order. Adopt the technical scheme of the utility model the above problem can effectively be solved, the effective recovery of oil in the oligomer emulsion layer has been realized to the treatment cost is wasted to danger has been reduced.

Description

Oligomer emulsion layer demulsification device for C5 petroleum resin production

Technical Field

The utility model belongs to the technical field of petroleum resin production, more specifically say, relate to an oligomer emulsion breaking device for production of C5 petroleum resin.

Background

The C5 petroleum resin is produced by cationic polymerization process under the catalysis of Lewis acid and with the C5 fraction from ethylene cracking apparatus as material. Because of having good performances of pour point depression and viscosity increase and viscosity coefficient improvement, the modified starch has good compatibility with oil products, grease and synthetic resin, and is better in water resistance and acid resistance when being mixed with other substances; and the adhesive has low melting point and good adhesiveness, and is widely applied to various fields of printing ink, coating, adhesive, asphalt modification, rubber modification and the like.

The production process of C5 petroleum resin is that firstly, the diolefin is polymerized to generate dimer, then the dimer is separated out, and then the dimer is polymerized, neutralized, alkali-washed, flash-evaporated and solvent recovered to obtain the C5 petroleum resin. The removal of light components in the C5 petroleum resin is a key link related to the softening point of the resin, and in the prior art, the polymerization solution after the catalyst is removed by washing is usually subjected to flash evaporation and stripping treatment in sequence, so as to remove the low-boiling-point components such as un-polymerized C5 and reaction solvent in the polymerization solution.

If, chinese patent application No. 201420551381.8 discloses a device of C5 petroleum resin desorption light component, the device includes first flash column tower group, second flash column tower group and third flash column tower group, three flash column tower groups all include the material business turn over pipeline of flash column and flash column, and the flash column material business turn over pipeline of the flash column tower group of three groups connects gradually, the flash column top all is connected with steam condensation collection subassembly, be equipped with a flash heater on the inlet pipe line of the first flash column of first flash column tower group, be equipped with two flash heaters on the inlet pipe line of the second flash column of second flash column tower group, the second flash column is equipped with forced circulation pipeline. The application realizes sectional extraction by continuously introducing the polymerization liquid after water washing into three flash towers, so that the mixed unpolymerized C5 and the solvent in the light components can be effectively removed.

However, the oligomer extracted by the stripping treatment usually contains a certain amount of water, so that an emulsion layer is inevitably generated in the oligomer in the actual production process, the oligomer emulsion layer is alkaline, and is usually directly discharged and collected and treated by hazardous wastes, so that the generation of the hazardous wastes is greatly increased, the production cost is increased, and the waste of resources is caused.

SUMMERY OF THE UTILITY MODEL

1. Problems to be solved

The utility model aims to overcome and easily produce the emulsion layer in the oligomer that the steam strip produced among the prior art, this emulsion layer is directly handled as the danger waste to increase manufacturing cost, and cause the not enough of wasting of resources, provide an oligomer emulsion layer breakdown of emulsion device that is used for C5 petroleum resin to produce. Adopt the technical scheme of the utility model the above problem can effectively be solved, the effective recovery of oil in the oligomer emulsion layer has been realized to the treatment cost is wasted to danger has been reduced.

2. Technical scheme

In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows:

the utility model discloses a oligomer emulsion breaking device for production of C5 petroleum resin, including strip tower, oligomer pans, breakdown of emulsion stirred tank and centrifuge, the gas phase pipeline at strip tower top links to each other through the feed inlet of condenser with the condensate tank, and wherein the oligomer discharging pipe of condensate tank bottom links to each other with the feed inlet of oligomer pans, and the oligomer pans pass through the emulsion conveyer pipe and link to each other with breakdown of emulsion stirred tank and centrifuge in proper order.

Further, the oligomer intermediate tank is connected to the oligomer storage tank through an oligomer transfer pipe.

Furthermore, a stirrer is arranged in the demulsification stirring kettle, and a feed inlet of the demulsification stirring kettle is also connected with an acid wastewater pipeline.

Furthermore, the demulsification stirring kettle and the centrifuge are connected with the oligomer intermediate tank through an oligomer recovery pipe.

Furthermore, the water outlets of the demulsification stirring kettle and the centrifugal machine are connected with a sewage treatment system through a sewage discharge pipe.

Furthermore, a slag discharge port is arranged at the bottom of the centrifugal machine and is connected with a slag discharge pipe.

Furthermore, the feed inlet of the condenser is also connected with an ammonia water inlet pipe, and a water outlet of the condensate tank is connected with the feed inlet of the condenser through an ammonia water circulating pipe.

3. Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a oligomer emulsion breaking device for production of C5 petroleum resin, including strip tower, oligomer intermediate tank, breakdown of emulsion stirred tank and centrifuge, carry in proper order to breakdown of emulsion stirred tank and centrifuge through the emulsion layer in with strip tower top condensate tank in the oligomer stir breakdown of emulsion and centrifugation processing to can carry out effective separation with water with the oil in the emulsion layer, retrieve the oil in the emulsion layer, avoid the emulsion layer directly to handle the wasting of resources that causes as danger waste, and reduced the useless treatment cost of danger.

(2) The utility model discloses a oligomer emulsion breaking device for production of C5 petroleum resin, be equipped with the agitator in the breakdown of emulsion stirred tank, and this breakdown of emulsion stirred tank's feed inlet still links to each other with sour waste water pipeline, and after the emulsion layer of the ejection of compact of oligomer pans got into the breakdown of emulsion stirred tank with sour waste water with the proportion, through stirring the breakdown of emulsion that realizes the emulsion layer, the layering is the oil reservoir, a small amount of emulsion layer and a large amount of breakdown of emulsion water after stewing, and the emulsion layer after the breakdown of emulsion is carried to centrifuge further centrifugation and is gone out moisture and impurity.

(3) The utility model discloses a low polymer emulsion breaking device for production of C5 petroleum resin, breakdown of emulsion stirred tank and centrifuge all link to each other with the low polymer pans through the low polymer recovery tube, and the waste water that the layering produced in breakdown of emulsion stirred tank and the centrifuge is arranged to sewage treatment system through the blow off pipe and is handled, and the oil of isolating then circulates to the low polymer pans through the low polymer recovery tube to realize the recovery of low polymer in the emulsion layer, and reduced the useless production of danger.

(4) The utility model discloses a oligomer emulsion breaking device for production of C5 petroleum resin, the feed inlet of condenser still links to each other with the aqueous ammonia inlet tube, carries the aqueous ammonia in to the condenser through the aqueous ammonia inlet tube to can prevent to lead to the fact the corruption from chloride ion in the gaseous phase of strip tower top ejection of compact to condenser and condensate tank.

Drawings

FIG. 1 is a schematic structural diagram of an oligomer emulsion layer demulsification device for C5 petroleum resin production according to the present invention;

in the figure:

1. a stripping column; 2. an ammonia water inlet pipe; 3. a condenser; 4. a condensate tank; 5. an ammonia water circulating pipe; 6. a condensate tank discharge pipe; 7. an oligomer tundish; 8. an oligomer delivery pipe; 9. an emulsion layer delivery pipe; 10. an acid wastewater line; 11. a demulsification stirring kettle; 12. a blow-off pipe; 13. a centrifuge; 14. a slag discharge pipe; 15. and an oligomer recovery pipe.

Detailed Description

The present invention will be further described with reference to the following specific embodiments.

Example 1

As shown in fig. 1, the oligomer emulsion breaking device for C5 petroleum resin production of this embodiment includes stripping tower 1, oligomer intermediate tank 7, emulsion breaking stirred tank 11 and centrifuge 13, wherein the gas phase pipeline at the top of stripping tower 1 is connected with the feed inlet of condensate tank 4 through condenser 3, oligomer discharge pipe 6 at the bottom of condensate tank 4 is connected with the feed inlet of oligomer intermediate tank 7, and oligomer intermediate tank 7 is connected with emulsion breaking stirred tank 11 and centrifuge 13 in turn through emulsion layer delivery pipe 9. Specifically, in this embodiment, the oligomer intermediate tank 7 is connected to the oligomer storage tank through an oligomer delivery pipe 8, and is connected to the feed inlet of the emulsion breaking stirred tank 11 through an emulsion layer delivery pipe 9. The gaseous phase ejection of compact at stripping tower 1 top is gone into condensate tank 4 after condenser 3 condenses, and the oligomer in condensate tank 4 passes through oligomer discharging pipe 6 and carries to oligomer intermediate tank 7, through the back that subsides that stews, and wherein oligomer carries to oligomer holding tank through oligomer conveyer pipe 8 and deposits, and the emulsion layer then carries to emulsion breaking stirred tank 11 through emulsion layer conveyer pipe 9.

Be equipped with the agitator in the breakdown of emulsion stirred tank 11, and breakdown of emulsion stirred tank 11's feed inlet still links to each other with sour waste water pipeline 10, sour waste water and emulsion layer in same proportion carry to breakdown of emulsion stirred tank 11, under the intensive mixing effect of agitator, the emulsion layer takes place the breakdown of emulsion and is the oil reservoir through the layering after the settlement of stewing, a small amount of emulsion layer and a large amount of water of breakdown of emulsion play, the emulsion layer after the breakdown of emulsion layering is carried to centrifuge 13 through emulsion layer conveyer pipe 9, further isolate moisture and impurity under centrifuge 13's effect. Wherein, the sewage that divides layer in demulsification stirred tank 11 and centrifuge 13 all carries to sewage treatment system through blow off pipe 12 and handles, and the oil that divides layer all circulates to oligomer pans 7 through oligomer recovery tube 15, and the sediment of centrifuge 13 bottom is then carried to sludge system through row cinder notch and row cinder pipe 14 and is handled. This embodiment is through carrying out breakdown of emulsion and centrifugal treatment in proper order with the emulsion layer in the oligomer to retrieve the oil in the emulsion layer, thereby be favorable to reducing the wasting of resources on the one hand, on the other hand significantly reduced the useless production of danger, reduced manufacturing cost.

Example 2

The oligomer emulsion breaking device for C5 petroleum resin production of this embodiment, its structure is basically the same as embodiment 1, and further, the feed inlet of condenser 3 still links to each other with aqueous ammonia inlet tube 2, and the outlet of condensate tank 4 links to each other with sewage treatment system through the exhaust pipe on the one hand, and on the other hand links to each other with the feed inlet of condenser 3 through aqueous ammonia circulating pipe 5. The resin liquid that gets into the stripper inevitably can have the clean chloride ion of desorption, and these remaining chloride ions are together by the ejection of compact of stripper top gas phase pipeline to can produce the corruption to tower top condenser equipment and pipeline, carry the aqueous ammonia in to condenser 3 through the aqueous ammonia inlet tube in this embodiment, thereby can prevent that chloride ion from causing the corruption to condenser 3 and lime set jar 4.

Claims

1. An oligomer emulsion breaking device for C5 petroleum resin production comprises a stripping tower (1), wherein a gas phase pipeline at the top of the stripping tower (1) is connected with a feed inlet of a condensate tank (4) through a condenser (3), and is characterized in that: the device is characterized by further comprising an oligomer intermediate tank (7), a demulsification stirring kettle (11) and a centrifuge (13), wherein an oligomer discharge pipe (6) at the bottom of the condensate tank (4) is connected with a feed inlet of the oligomer intermediate tank (7), and the oligomer intermediate tank (7) is sequentially connected with the demulsification stirring kettle (11) and the centrifuge (13) through an emulsion layer conveying pipe (9).

2. The oligomer emulsion breaking device for C5 petroleum resin production according to claim 1, wherein: the oligomer intermediate tank (7) is connected with an oligomer storage tank through an oligomer conveying pipe (8).

3. The oligomer emulsion breaking device for C5 petroleum resin production according to claim 1, wherein: the demulsification stirring kettle (11) is internally provided with a stirrer, and a feed inlet of the demulsification stirring kettle (11) is also connected with the acid wastewater pipeline (10).

4. The oligomer emulsion breaking device for C5 petroleum resin production according to any one of claims 1-3, wherein: the demulsification stirring kettle (11) and the centrifuge (13) are both connected with the oligomer intermediate tank (7) through an oligomer recovery pipe (15).

5. The oligomer emulsion breaking device for C5 petroleum resin production according to any one of claims 1-3, wherein: and the water outlets of the demulsification stirring kettle (11) and the centrifuge (13) are connected with a sewage treatment system through a sewage discharge pipe (12).

6. The oligomer emulsion breaking device for C5 petroleum resin production according to claim 5, wherein: the bottom of the centrifugal machine (13) is provided with a slag discharge port, and the slag discharge port is connected with a slag discharge pipe (14).

7. The oligomer emulsion breaking device for C5 petroleum resin production according to any one of claims 1-3, wherein: the feed inlet of condenser (3) still links to each other with aqueous ammonia inlet tube (2), and the outlet of condensate tank (4) links to each other with the feed inlet of condenser (3) through aqueous ammonia circulating pipe (5).