CN203425721U - Membrane-process butanone-toluene solvent recycling system - Google Patents
Membrane-process butanone-toluene solvent recycling system Download PDFInfo
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- CN203425721U CN203425721U CN201320139429.XU CN201320139429U CN203425721U CN 203425721 U CN203425721 U CN 203425721U CN 201320139429 U CN201320139429 U CN 201320139429U CN 203425721 U CN203425721 U CN 203425721U
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Abstract
The utility model discloses a membrane-process butanone-toluene solvent recycling system. The membrane-process butanone-toluene solvent recycling system consists of a liquid storage tank system, a booster pump pressure-boosting system and a membrane separator separating system, wherein the liquid storage tank system consists of a right chamber liquid level meter, a right chamber, a partition plate, a concentrated liquid inlet valve, a filtrate charging master valve, a left chamber, a left chamber liquid level meter, a filtrate outlet valve and a concentrated liquid outlet valve; the booster pump pressure-boosting system consists of a check valve, a booster pump inlet valve, a booster pump, a booster pump outlet pressure meter, a filtrate flow rate meter and a booster pump outlet valve; the separator separating system consists of a solvent flow rate meter, a permeate outlet valve, a membrane separator, a concentrated liquid outlet valve, a differential pressure transmitter and a filtrate inlet valve. Filtrate passes through the liquid storage tank system, the booster pump pressure-boosting system and the membrane separator separating system, so that a solvent is separated from wax oil.
Description
Technical field
The application relates to the efficient low energy environmentally friendly solvent of a kind of refinery ketone-benzol dewaxing device recovery system, is specifically designed to Large Scale Petrochemical Enterprises, the recycling of ketone-benzol dewaxing device wax oil and the separated and solvent of solvent.
Background technology
It is object that refinery ketone-benzol dewaxing device be take light oil and heavy oil, in raw material, oil and paraffin mix, and need add the dilution of butanone-toluene Mixed Solvent, after cooling, wax is crystallization therefrom, then unit after filtration, is separated into filtrate and wax liquid, enters respectively solvent recovering system, solvent recovery unit is to utilize the boiling-point difference of oily wax and solvent, by multiple-effect evaporation and air lift, make solvent separated with oily wax, after solvent recovery, for device, recycle.Conventional technique all adopts the evaporation technology of five tower triple effects, wherein need the Static Equipments such as tower, air cooler, heat exchanger, container, pump, heating furnace to reach tens of, technological process is numerous and diverse, equipment is more, operational administrative difficulty is large, power source consumes huge, and operator's labour intensity is large, and recondition expense is high.For above-mentioned situation, we have designed advanced embrane method butanone-toluene solvant recovery system, adopt advanced membrane separation technique, directly by the wax in filtrate, oil and separated from solvent, simplified technological process, facilitate operational administrative, reduced its running cost, operating cost, cost of equipment maintenance, improved the quality of output products, reduced labour intensity, reduce energy resource consumption, improved production efficiency, reached the object of energy efficiency.
Utility model content
Solvent recovering system for the existing backwardness of oil plant is the boiling-point difference that utilizes oily wax and solvent, by multiple-effect evaporation and air lift, make the evaporation technology of the solvent five tower triple effects separated with oily wax, the utility model provides a kind of efficient embrane method butanone-toluene solvant recovery system.The utility model is by the following technical solutions: embrane method butanone-toluene solvant recovery system is comprised of liquid storage tank system, force (forcing) pump boosting system and membrane separator piece-rate system three parts.Specifically have: solvent flux meter; See through liquid outlet valve; Membrane separator; Concentrated solution outlet valve; Right chamber liquid level gauge; Right chamber; Dividing plate; Concentrate enters pot valve; Filtrate charging main valve; Left chamber; Left chamber's liquid level gauge; Filtrate (liquid valve; Concentrate dump valve; Check valve; Force (forcing) pump inlet valve; Force (forcing) pump; Force (forcing) pump delivery gauge; Differential pressure transmitter; Flow of filtrate meter; Filtrate inlet valve; Force (forcing) pump outlet valve forms.
Liquid storage tank system is by right chamber liquid level gauge (5); Right chamber (6); Dividing plate (7); Concentrate enters pot valve (8); Filtrate charging main valve (9); Left chamber (10); Left chamber's liquid level gauge (11); Filtrate (liquid valve (12); Concentrate dump valve (13) forms.
Force (forcing) pump boosting system is by check valve (14); Force (forcing) pump inlet valve (15); Force (forcing) pump (16); Force (forcing) pump delivery gauge (17); Flow of filtrate meter (19); Force (forcing) pump outlet valve (21) forms.
Membrane separator piece-rate system is by solvent flux meter (1); See through liquid outlet valve (2); Membrane separator (3); Concentrated solution outlet valve (4); Differential pressure transmitter (18); Filtrate inlet valve (20) forms.
Fluid reservoir middle part is provided with dividing plate (7), whole tank body is divided into left chamber (10)) and right chamber (6), left chamber stores filtrate, right chamber stores wax oil concentrate, tank body left and right sides is respectively equipped with right chamber liquid level gauge (5) and left chamber's liquid level gauge (11), controls respectively the height of liquid level of the interior wax oil concentrate of tank and filtrate.
In membrane separator (3), be provided with the separated filter core of film, adopt the interior filter type mode of operation of tubular type nanofiltration membrane component.
The whole process of system operation is under pressure-driven (pressure reduction) effect, utilize wax oil different from the speed of the polymeric membrane of butanone-toluene, this film preferentially sees through the hydrocarbon molecules such as butanone-toluene, the low-pressure side that enters film obtains solvent and sees through liquid, return to recovery of circulatory system recycling, high-pressure side obtains the wax oil concentrate of enrichment, and along with concentrate is discharged, enter wax oil accumulating recovery system, thereby reach butanone-toluene effective separated object from wax oil solvent liquid.
Embrane method butanone-toluene solvant recovery system is compared with the evaporation technology of traditional five tower triple effects, has without phase transformation, and equipment is simple, processing ease, the advantage such as energy consumption is low, and the rate of recovery is high, pollution-free.
Accompanying drawing explanation
Fig. 1 embrane method butanone-toluene solvant recovery system figure
Shown in figure: 1. solvent flux meter; 2. see through liquid outlet valve; 3. membrane separator; 4. concentrated solution outlet valve; 5. right chamber liquid level gauge; 6. right chamber; 7. dividing plate; 8. concentrate enters pot valve; 9. filtrate charging main valve; 10. left chamber; 11. left chamber's liquid level gauges; 12. filtrate (liquid valves; 13. concentrate dump valves; 14. check valves; 15. force (forcing) pump inlet valves; 16. force (forcing) pumps; 17. force (forcing) pump delivery gauges; 18. differential pressure transmitters; 19. flow of filtrate meters; 20. filtrate inlet valves; 21. force (forcing) pump outlet valves;
The specific embodiment
Below in conjunction with 1 pair of the utility model of accompanying drawing, be described further, as shown in Figure 1, the wax oil filtrate of containing butanone-toluene of coming from production system, by filtrate charging main valve (9), entering left chamber (10) stores, open filtrate (liquid valve (12) and force (forcing) pump inlet valve (15), start force (forcing) pump (16), filtrate after pressure-raising is by check valve (14), force (forcing) pump outlet valve (21), flowmeter (19) and filtrate inlet valve (20), band pressing filtering liquid enters in membrane separator (3), in membrane separator (3), be provided with the separated filter core of film, adopt the interior filter type mode of operation of tubular type nanofiltration membrane component, efficient, low energy, the core of embrane method butanone-toluene solvant recovery system of environmental protection.The filtrate that enters membrane separator (3) will have certain pressure, force (forcing) pump (16) and force (forcing) pump outlet valve (21) are set between left chamber (10) and membrane separator (3), and the pressure that promotes and adjust filtrate reaches the setting value of membrane separator.The liquid that sees through after film separation returns to recovery of circulatory system recycling from seeing through liquid outlet valve (2) and solvent flux meter (1), isolated concentrate enters pot valve (8) from concentrated solution outlet valve (4) and concentrate and enters right chamber (6), when concentrate liquid level reaches setting height value, open concentrate dump valve (13), make wax oil concentrate enter wax oil accumulating recovery system.
Membrane separator (3) entrance and exit is provided with differential pressure transmitter (18), the inside and outside pressure reduction of monitoring membrane separator (3) filter core, prevent that membrane separator (3) from moving under damage or stopping state, pressure reduction surpasses setting value or during lower than setting value, all will membrane separator (3) be placed under repair or be changed.
According to the pattern of membrane module, number and arrangement mode, operating procedure condition, membrane separator can be designed to single group tandem or organize parallel structure more, between each group, by valve, realize serial or parallel connection conversion operations, adjust the purity and the rate of recovery that reclaim solvent.
The above is preferred embodiment of the present utility model, certainly can not limit with this interest field of the utility model.It should be pointed out that the professional and technical personnel for the art, the technical solution of the utility model is modified or is equal to replacement, do not depart from protection domain of the present utility model.
Claims (3)
1. embrane method butanone-toluene solvant recovery system is comprised of liquid storage tank system, force (forcing) pump boosting system and membrane separator piece-rate system three parts, specifically has: solvent flux meter; See through liquid outlet valve; Membrane separator; Concentrated solution outlet valve; Right chamber liquid level gauge; Right chamber; Dividing plate; Concentrate enters pot valve; Filtrate charging main valve; Left chamber; Left chamber's liquid level gauge; Filtrate (liquid valve; Concentrate dump valve; Check valve; Force (forcing) pump inlet valve; Force (forcing) pump; Force (forcing) pump delivery gauge; Differential pressure transmitter; Flow of filtrate meter; Filtrate inlet valve; Force (forcing) pump outlet valve forms, it is characterized in that: liquid storage tank system is by right chamber liquid level gauge (5); Right chamber (6); Dividing plate (7); Concentrate enters pot valve (8); Filtrate charging main valve (9); Left chamber (10); Left chamber's liquid level gauge (11); Filtrate (liquid valve (12); Concentrate dump valve (13) forms; Force (forcing) pump boosting system is by check valve (14); Force (forcing) pump inlet valve (15); Force (forcing) pump (16); Force (forcing) pump delivery gauge (17); Flow of filtrate meter (19); Force (forcing) pump outlet valve (21) forms; Membrane separator piece-rate system is by solvent flux meter (1); See through liquid outlet valve (2); Membrane separator (3); Concentrated solution outlet valve (4); Differential pressure transmitter (18); Filtrate inlet valve (20) forms; In membrane separator (3), be provided with the separated filter core of film, adopt the interior filter type mode of operation of tubular type nanofiltration membrane component; Fluid reservoir middle part is provided with dividing plate (7), whole tank body is divided into left chamber (10)) and right chamber (6), left chamber stores filtrate, right chamber stores wax oil concentrate, tank body left and right sides is respectively equipped with right chamber liquid level gauge (5) and left chamber's liquid level gauge (11), controls respectively the height of liquid level of the interior wax oil concentrate of tank and filtrate.
2. embrane method butanone-toluene solvant recovery system according to claim 1, is characterized in that: membrane separator (3) entrance and exit is provided with differential pressure transmitter (18), the inside and outside pressure reduction of monitoring membrane separator (3) filter core.
3. embrane method butanone-toluene solvant recovery system according to claim 1, it is characterized in that: according to the pattern of membrane module, number and arrangement mode, operating procedure condition, membrane separator can be designed to single group tandem or organize parallel structure more, between each group, by valve, realize serial or parallel connection conversion operations, adjust the purity and the rate of recovery that reclaim solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320139429.XU CN203425721U (en) | 2013-03-26 | 2013-03-26 | Membrane-process butanone-toluene solvent recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320139429.XU CN203425721U (en) | 2013-03-26 | 2013-03-26 | Membrane-process butanone-toluene solvent recycling system |
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| Publication Number | Publication Date |
|---|---|
| CN203425721U true CN203425721U (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320139429.XU Expired - Lifetime CN203425721U (en) | 2013-03-26 | 2013-03-26 | Membrane-process butanone-toluene solvent recycling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115491226A (en) * | 2021-06-17 | 2022-12-20 | 中国石油化工股份有限公司 | Method for recovering dewaxing solvent in heavy lubricant base oil filtrate |
-
2013
- 2013-03-26 CN CN201320139429.XU patent/CN203425721U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115491226A (en) * | 2021-06-17 | 2022-12-20 | 中国石油化工股份有限公司 | Method for recovering dewaxing solvent in heavy lubricant base oil filtrate |
| CN115491226B (en) * | 2021-06-17 | 2024-03-26 | 中国石油化工股份有限公司 | Method for recovering dewaxing solvent in heavy lubricating oil base oil filtrate |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |
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| CX01 | Expiry of patent term |