CN104083888B - The processing method that a kind of octanol rectification under vacuum is produced - Google Patents
The processing method that a kind of octanol rectification under vacuum is produced Download PDFInfo
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- CN104083888B CN104083888B CN201410315352.6A CN201410315352A CN104083888B CN 104083888 B CN104083888 B CN 104083888B CN 201410315352 A CN201410315352 A CN 201410315352A CN 104083888 B CN104083888 B CN 104083888B
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Abstract
The present invention discloses the processing method that a kind of octanol rectification under vacuum is produced, first water ring vacuum pump is opened, by vacuum breaker variable valve regulation system pressure to operation index, system feeding enters rectifying tower under vacuo, heating through reboiler makes rectifying tower liquid become gas, and gas is after condenser condenses, and phlegma enters return tank, rectifying tower is returned to, qualified rear extraction product through reflux pump. Uncondensed gas enters water ring vacuum pump through conduit, and uncondensed gas is extracted out by water ring vacuum pump, enters surge tank, enters torch recovery system through pipeline of dropping a hint, and the lime set produced at water ring vacuum pump is recovered to return tank again through Ethylene recov pipeline. The useful effect of the present invention is, flow process is simple, convenient operation and control, and compared with tradition steam jet vacuum, waste water is few, alleviates environmental protection pressure, and economic benefit is also more obvious.
Description
Technical field
The present invention relates to a kind of method of octanol rectification under vacuum, particularly relate to a kind of method utilizing water ring vacuum pump to carry out octanol rectification under vacuum.
Technical background
The producing of octanol first carries out condensation with the butyraldehyde-n of oxo process and obtains octenal and carry out hydrogenation again, octenal obtains thick octanol after gas phase hydrogenation, wherein containing moisture, butanols and heavy constituent, rectifying need to be carried out, but, atmospheric distillation temperature height, the heavy constituent of generation affects quality product, only adopts rectification under vacuum. What other devices adopted at present is steam jet vacuum technique, and steam consumption is relatively big, produces a large amount of oily(waste)waters after condensation.
Summary of the invention
For prior art, this patent provides the processing method that a kind of novel octanol rectification under vacuum is produced, and has and reduces the advantages such as energy consumption, rectification effect are good.
For achieving the above object, the present invention adopts following technical proposals:
The device that a kind of octanol rectification under vacuum is produced, comprise water ring vacuum pump, rectifying tower, condenser and return tank, rectifying tower and condenser pass through tubes connection, condenser is connected with water ring vacuum pump with return tank respectively and the conduit of condenser and water ring vacuum pump is provided with throttling valve, water ring vacuum pump is connected with return tank through conduit, water ring vacuum pump is connected with surge tank through conduit, through pipeline of dropping a hint, torch recovery system is connected with reducing internal heat at surge tank top, the conduit at surge tank top and the conduit of condenser-water ring vacuum pump are provided with vacuum breaker variable valve, it is connected with return tank through Ethylene recov pipeline bottom surge tank, return tank is connected through conduit with reflux pump, reflux pump is connected with rectifying tower, rectifying tower is connected with reboiler, rectifying tower tower reactor connects raffinate transferpump.
The processing method that a kind of octanol rectification under vacuum is produced, first water ring vacuum pump is opened, by vacuum breaker variable valve regulation system pressure to operation index, system feeding enters rectifying tower under vacuo, heating through reboiler makes rectifying tower raffinate become gas, and gas is after condenser condenses, and phlegma enters return tank, rectifying tower is returned to, qualified rear extraction product through reflux pump; Uncondensed gas enters water ring vacuum pump through conduit, and uncondensed gas is extracted out by water ring vacuum pump, enters surge tank, enters torch recovery system through pipeline of dropping a hint, and the phlegma produced at water ring vacuum pump receives return tank through Ethylene recov back of pipeline.
The useful effect of the present invention is, flow process is simple, convenient operation and control, compared with tradition steam jet vacuum, waste water is few, alleviates environmental protection pressure, economic benefit is also more obvious, and the existing steam jet vacuum steam 2T that need to consume per hour, after condensation, major part becomes oily(waste)water, need to process further;The method of the present invention, electricity consumption 110KW per hour, by every kilowatt-hour 0.5 yuan, cost is at 55 yuan, existing steam jet vacuum method, the cost of every ton of steam is by 160 yuan, and cost is 320 yuan, like this, utilize the method for the present invention, cost-saving 265 yuan of operation per hour, every year by 330 days, can save 265*24*330=2098000 unit.
Accompanying drawing explanation
Fig. 1 is the device schematic diagram of the present invention.
Wherein, 1. vacuum breaker variable valve, 2. Ethylene recov pipeline, 3. drop a hint pipeline, 4. water ring vacuum pump, 5. surge tank, 6. reboiler, 7. rectifying tower, 8. condenser, 9. return tank, 10. reflux pump, 11. raffinate transferpumps.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment 1:
The device that a kind of octanol rectification under vacuum is produced, as shown in Figure 1, comprise water ring vacuum pump 4, rectifying tower 7, condenser 8 and return tank 9, rectifying tower 7 and condenser 8 pass through tubes connection, condenser 8 is connected with water ring vacuum pump 4 with return tank 9 respectively and the conduit of condenser 8 and water ring vacuum pump 4 is provided with throttling valve, water ring vacuum pump 4 is connected with return tank 9 through conduit, water ring vacuum pump 4 is connected with surge tank 5 through conduit, through pipeline 3 of dropping a hint, torch recovery system is connected with reducing internal heat at surge tank 5 top, the conduit at surge tank 5 top and the conduit of condenser 8-water ring vacuum pump 4 are provided with vacuum breaker variable valve 1, it is connected with return tank 9 through Ethylene recov pipeline 2 bottom surge tank 5, return tank 9 is connected through conduit with reflux pump 10, reflux pump 10 is connected with rectifying tower 7, rectifying tower 7 is connected with reboiler 6, rectifying tower 7 tower reactor connects raffinate transferpump 11.
The processing method that a kind of octanol rectification under vacuum is produced, first water ring vacuum pump 4 is opened, by vacuum breaker variable valve 1 regulation system pressure to operation index, system feeding enters rectifying tower 7 under vacuo, heating through reboiler 6 makes rectifying tower 7 raffinate become gas, and gas is after condenser 8 condensation, and phlegma enters return tank 9, rectifying tower 7 is returned to, qualified rear extraction product through reflux pump 10; Uncondensed gas enters water ring vacuum pump 4 through conduit, and uncondensed gas is extracted out by water ring vacuum pump 4, enters surge tank 5, and through dropping a hint, pipeline 3 enters torch recovery system, and the phlegma produced at water ring vacuum pump 4 is recovered to return tank 9 through Ethylene recov pipeline 2.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of the technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (1)
1. the processing method of an octanol rectification under vacuum, it is characterized in that, first water ring vacuum pump is opened, by vacuum breaker variable valve regulation system pressure to operation index, system feeding enters rectifying tower under vacuo, and the heating through reboiler makes rectifying tower liquid become gas, gas is after condenser condenses, phlegma enters return tank, returns to rectifying tower by reflux pump, qualified rear extraction product; Uncondensed gas enters water ring vacuum pump through conduit, is extracted out by water ring vacuum pump, enters surge tank, enters torch recovery system through pipeline of dropping a hint, and the lime set produced at water ring vacuum pump is recovered to return tank again through Ethylene recov pipeline;
The device that described processing method uses, comprise water ring vacuum pump, rectifying tower, condenser and return tank, rectifying tower and condenser pass through tubes connection, condenser is connected with water ring vacuum pump with return tank respectively and the conduit of condenser and water ring vacuum pump is provided with throttling valve, water ring vacuum pump is connected with return tank through conduit, water ring vacuum pump is connected with surge tank through conduit, through pipeline of dropping a hint, torch recovery system is connected with reducing internal heat at surge tank top, the conduit at surge tank top and the conduit of condenser-water ring vacuum pump are provided with vacuum breaker variable valve, it is connected with return tank through Ethylene recov pipeline bottom surge tank, return tank is connected through conduit with reflux pump, reflux pump is connected with rectifying tower, rectifying tower is connected with reboiler, rectifying tower tower reactor connects raffinate transferpump.
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| CN201410315352.6A CN104083888B (en) | 2014-07-03 | 2014-07-03 | The processing method that a kind of octanol rectification under vacuum is produced |
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| CN201410315352.6A CN104083888B (en) | 2014-07-03 | 2014-07-03 | The processing method that a kind of octanol rectification under vacuum is produced |
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| CN104083888B true CN104083888B (en) | 2016-06-08 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104722248A (en) * | 2015-03-31 | 2015-06-24 | 南京化工职业技术学院 | Device and process for producing dioctyl terephthalate by virtue of reactive distillation of waste polyester |
| CN106699502A (en) * | 2016-12-20 | 2017-05-24 | 广西壮族自治区林业科学研究院 | Turpentine rectification tower vacuum system |
| CN108303385B (en) * | 2017-10-21 | 2021-12-24 | 聊城鲁西多元醇新材料科技有限公司 | Method for determining rhodium content in diphosphine ligand rhodium catalyst |
| CN110102072A (en) * | 2019-05-07 | 2019-08-09 | 浙江亚光科技股份有限公司 | Hypergravity rectifying couples the device and control method of decompression separation methanol-water with reacting |
| CN110559677A (en) * | 2019-09-25 | 2019-12-13 | 南通百川新材料有限公司 | Efficient trimethylolpropane synthetic solvent rectification tail gas recovery device |
| CN117470621B (en) * | 2023-10-31 | 2024-06-04 | 连云港石化有限公司 | Detection device and detection process for organic matters in water |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3969196A (en) * | 1963-04-16 | 1976-07-13 | Studiengesellschaft Kohle M.B.H. | Process for the separation of mixtures of substances |
| CN102167659A (en) * | 2011-03-25 | 2011-08-31 | 南通星辰合成材料有限公司 | Method for realizing vacuum rectification and vacuum evaporation of bisphenol A by liquid ring vacuum pump |
| CN203494194U (en) * | 2013-09-21 | 2014-03-26 | 山东建筑大学 | Octanol rectification device |
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2014
- 2014-07-03 CN CN201410315352.6A patent/CN104083888B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3969196A (en) * | 1963-04-16 | 1976-07-13 | Studiengesellschaft Kohle M.B.H. | Process for the separation of mixtures of substances |
| CN102167659A (en) * | 2011-03-25 | 2011-08-31 | 南通星辰合成材料有限公司 | Method for realizing vacuum rectification and vacuum evaporation of bisphenol A by liquid ring vacuum pump |
| CN203494194U (en) * | 2013-09-21 | 2014-03-26 | 山东建筑大学 | Octanol rectification device |
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Inventor after: Yang Benhua Inventor after: Zhao Chuanxi Inventor after: Hu Dachun Inventor after: Liu Libin Inventor after: Feng Guijun Inventor before: Zhao Chuanxi Inventor before: Liu Libin Inventor before: Feng Guijun |
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Address after: 252000 residence of Luxi group in Liaocheng chemical industry park, Shandong Province Patentee after: Liaocheng Luxi polyol New Material Technology Co.,Ltd. Address before: 252000 Guguantun Town Resident, Liaocheng Economic Development Zone, Shandong Province Patentee before: LIAOCHENG MEIWU NEW MATERIAL SCIENCE & TECHNOLOGY Co.,Ltd. |
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