WO2003022389A1 - Dispositif de distillation et procede de distillation mettant en oeuvre ledit dispositif - Google Patents

Dispositif de distillation et procede de distillation mettant en oeuvre ledit dispositif Download PDF

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Publication number
WO2003022389A1
WO2003022389A1 PCT/JP2002/001705 JP0201705W WO03022389A1 WO 2003022389 A1 WO2003022389 A1 WO 2003022389A1 JP 0201705 W JP0201705 W JP 0201705W WO 03022389 A1 WO03022389 A1 WO 03022389A1
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Prior art keywords
distillation
evaporator
liquid
heat exchanger
distillation column
Prior art date
Application number
PCT/JP2002/001705
Other languages
English (en)
Japanese (ja)
Inventor
Hideo Noda
Hiroshi Yamaji
Original Assignee
Kansai Chemical Engineering Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kansai Chemical Engineering Co., Ltd. filed Critical Kansai Chemical Engineering Co., Ltd.
Priority to JP2003526513A priority Critical patent/JP4058410B2/ja
Publication of WO2003022389A1 publication Critical patent/WO2003022389A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
    • B01D3/322—Reboiler specifications
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/42—Regulation; Control
    • B01D3/4205—Reflux ratio control splitter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0033—Other features
    • B01D5/0036—Multiple-effect condensation; Fractional condensation

Definitions

  • the present invention relates to a distillation apparatus and a steaming method using the apparatus. More specifically, the present invention relates to an evaporator having a liquid spraying device, a distillation device having a heat exchanger at a specific position, and a distillation method using the device.
  • the undiluted solution is put into a still pot and heated to evaporate the solution.
  • the steam that reaches the top condenser at the top of the distillation column is condensed by the condenser using cooling water.
  • the distillation is started by refluxing the condensed and liquefied liquid to the distillation column. It is very difficult to recover energy in such a batch distillation. That is, first, starting from heating the undiluted solution, it takes a long time to start the distillation, and a large amount of energy is consumed.
  • the components having the lowest boiling point are taken out from the top of the distillation column in order. Therefore, a mixture of components having a boiling point higher than the lowest boiling point component is called a cut, and is first collected in a separate 1 "1 collection tank, and then distilled twice. In addition, it is usual to carry out distillation, so energy efficiency is low. In addition, the remaining liquid in the evaporator ⁇ As the temperature decreases, the heat transfer area also decreases in proportion to the liquid volume. Therefore, the amount of evaporation decreases accordingly, and it takes time to evaporate.
  • a continuous distillation apparatus for improving the distillation efficiency of a multi-component is described in Japanese Patent Application Laid-Open No. H10-137502.
  • This device is a device in which a reboiler is installed at the bottom of the distillation column to evaporate, and the bottom solution is used as an intermediate kettle liquid receiver while continuously supplying undiluted solution.
  • This device is designed to reduce the number of tanks in that it only has to prepare two intermediate tank liquid receivers.
  • piping and pumps are required for that, and there is a problem that liquid remains in the piping.
  • a heat exchanger is provided between a steam tower and an intermediate kettle liquid receiver, and the intermediate kettle liquid receiver is returned to the steam tower.
  • the liquid is heated by the heat of the liquid flowing to another intermediate pot liquid receiver.
  • the heat exchanger in this unit became necessary due to the introduction of a process to collect the bottom liquid in the intermediate tank liquid receiver. If an intermediate pot liquid receiver is not required, there is no need to provide a heat exchanger. Therefore, equipment that is not required is attached.
  • a pump is required to return the liquid to the distillation column. Also, energy is required to evaporate the supplied undiluted solution, so that the reboiler consumes a large amount of heat. Therefore, a simple distillation apparatus that can efficiently fractionate each component from a stock solution containing multiple components has not been provided yet. Disclosure of the invention
  • the present invention has been made in order to solve the above-mentioned problems, and its main purpose is to perform distillation efficiently in a short time and to efficiently fractionate multiple components with little energy. It is to provide a device.
  • the present invention relates to a continuous [»1 minute steaming apparatus] equipped with an evaporator having a liquid spraying apparatus, a distillation column, a heat exchanger, a condenser and a fraction receiver, wherein the heat exchanger comprises:
  • the heat exchanger is provided between the distillation column and the condenser, and is configured to exchange heat with a stock solution supplied to the distillation column. Liquefied in an exchanger and / or the condenser, a part of the liquefied liquid is collected in the fraction receiver, and the remaining liquid is configured to return to the distillation column, and the distillation is performed.
  • a semi-continuous batch distillation device hereinafter, device configured to return the bottom liquid of the column to the evaporator.
  • the present invention also provides an undiluted solution that is passed through a heat exchanger to collect heat while supplying M to a distillation column in a narrow range, and the bottom liquid of the distillation column is quickly sent to an evaporator having a liquid spraying device.
  • Providing a steaming method (hereinafter referred to as a first method) including a step of continuously supplying and evaporating components from the evaporator to pass through a distillation column, a heat exchanger, and a capacitor in that order to perform fractional distillation. I do.
  • the present invention relates to a distillation method in which the bottom liquid is further distilled to "1 minute".
  • the present invention provides a method for continuously supplying an undiluted solution to a distillation column while recovering heat by passing through a heat exchanger, and continuously supplying a bottom liquid of the distillation column to an evaporating vessel having a liquid spraying device.
  • the evaporating pot is supplied with a power to perform evaporation while controlling the amount of evaporation from the evaporating pot to a constant amount, or the evaporation is performed so that the amount of liquid in the evaporating pot becomes constant.
  • the present invention further relates to a semi-continuous batch distillation apparatus having an evaporator having a liquid spraying device, a heat exchanger, a core and a fraction receiver, wherein the heat exchanger comprises the evaporator and the evaporator.
  • a vapor exchange unit that is provided between the evaporator and the condenser and heat-exchanges with the undiluted liquid supplied to the evaporator; vapor from the evaporator is liquefied by the heat exchanger and / or the condenser and a fraction receiver
  • a semi-continuous batch distillation apparatus hereinafter, referred to as a second apparatus
  • a semi-continuous batch distillation apparatus hereinafter, referred to as a second apparatus
  • the present invention provides a method for continuously feeding a stock solution through a heat exchanger to an evaporating tank having a liquid spraying device, and evaporating components from the evaporating tank to the heat exchanger and the condenser.
  • the present invention provides a distillation method including a step of performing fractional distillation by passing through sequentially (hereinafter, the third method).
  • FIG. 1 is a diagram showing an example of the distillation apparatus of the present invention.
  • FIG. 1 shows the distillation apparatus (first apparatus) of the present invention.
  • it is a combination of an evaporator 2 having a liquid spraying device 1, a distillation column 3, a heat exchanger 4, a condenser 5, and a fraction receiver 6, 7.
  • the heat exchanger 4 is disposed between the distillation column 3 and the condenser 5, is configured to pass the undiluted solution 9 through the heat exchanger 4 and heat it, and to supply the heated liquid 9 to the distillation column 3. I have.
  • the evaporator 2 having the liquid spraying device 1 used in the first device of the present invention is an evaporator that keeps the inner surface of the evaporator 2, particularly a portion corresponding to the heat transfer area, always wet.
  • a method of spraying liquid into the kettle with a pump and circulating it may be used. The method of lifting and spraying the liquid with centrifugal force is
  • Revised ffl paper (Rule 91) When it is lost and when spraying the boiling liquid, it is particularly effective and is preferred.
  • the method of spraying liquid using this centrifugal force is a method invented by the inventor of the present invention. For details, see Japanese Patent No. 32533212 (corresponding to this publication Gazette No. 10333164).
  • the evaporating pot 2 used in the present invention is configured so that the portion corresponding to the heat transfer area is always kept wet, the entire heat transfer area is used effectively, and the heating efficiency and, consequently, the heating efficiency Extremely high evaporation efficiency. Therefore, according to the conventional ["1 minute method", even if the undiluted solution is stored to a certain amount and heated, it takes time for the phase to evaporate. In the present invention, this time is greatly reduced. In addition, since the heating surface is always wet, the device of the present invention is less likely to dry and adhere to non-volatile components, and is easy to clean.
  • the first device of the present invention is particularly effective when distilling a stock solution containing multiple components to fractionate each component.
  • the evaporator 2 having the liquid dispersing device 1 the amount of the liquid containing the last component is very small, and even in such a case, heating can be performed with a heat transfer area of -1-minute. Therefore, as in the case where the evaporator 2 is filled with the liquid, it is possible to supply the distillation column 3 at a substantially maximum speed and a constant amount of vapor. Therefore, the distillation column 3 can be operated with almost the highest efficiency.
  • heat transfer member such as a coil or a plate inside the evaporator 2
  • the heat transfer area can be further increased and the evaporation efficiency can be increased.
  • a heat transfer body may be provided inside the liquid.
  • heat transfer body is
  • a reflector When placed in a reflector, a reflector can be provided, and the liquid lifted by centrifugal force can be applied to the reflector and dropped onto the heat transfer body, so that the surface of the heat transfer body can always be wetted. . Furthermore, the heat transfer area may be increased by inclining the evaporator I body. Further, while monitoring the amount of evaporation, the temperature (heating condition) of the heat transfer body may be adjusted so that evaporation a is constant. By increasing the heat transfer area and adjusting it so that a certain amount of evaporation is obtained, the steam efficiency is further improved. This effect can be obtained because the evaporator has a liquid spraying device, particularly a device for spraying liquid using centrifugal force. (First method)
  • first apparatus A case where the stock solution 9 containing multiple components is distilled using this distillation apparatus (first apparatus) (first method) will be described.
  • first apparatus heat is not supplied to heat exchanger 4 because there is no steam from distillation column 3.
  • stock solution 9 remains cold.
  • the undiluted solution 9 enters the evaporating tank 2 having the liquid spraying device 1 and accumulates to some extent.
  • the evaporating device 2 having the liquid spraying device ⁇ is activated, the temperature of the liquid (undiluted solution 9) in the evaporating tank 2 immediately rises. And start boiling.
  • the generated steam goes up the distillation column 3 and reaches the heat exchanger 4 and / or the condenser 5.
  • the steam is condensed to reflux 8 and distillation is started.
  • the supply of the stock solution 9 to the distillation column 3 is performed at a calculated rate that matches the physical properties.
  • the lowest boiling component (lowest boiling component) passes through the top of the distillation column 3 and is cooled by the condenser 5 directly from the heat exchanger 4 or through the heat exchanger 4. A part is recirculated, and the rest is collected in fraction receiver 6.
  • the bottom liquid of the distillation column 3 from which the lowest boiling components have been distilled off contains the remaining components. ing.
  • the bottom liquid moves to the evaporator 2 having the liquid spraying device 1. Since the bottom liquid is sprayed on the inner wall of the evaporator 2 by the liquid spray device 1, it is evaporated at a substantially constant rate.
  • the distillation column 3 has a maximum efficiency at a certain evaporation rate, and the efficiency falls if it is outside of the maximum value.
  • the heat transfer area is constant irrespective of the amount of liquid in the evaporator, that is, the evaporation rate can be almost always constant. Therefore, the device of the present invention can always be operated at near-maximum efficiency.
  • the supply of the stock solution 9 is performed until the evaporator 2 becomes full, during which time distillation of the lowest boiling component can be performed.
  • the heat exchanger 4 for heat recovery has no effect.
  • it contributes to significant energy saving. are doing.
  • the second method is a method of accumulating and collecting in a reboiler, that is, evaporator 2, in order from high-boiling components. It is. In particular, it is an excellent method for recovering small amounts of high boiling components from stock solution 9.
  • the second method of the present invention will be described based on FIG. First, a certain amount of the stock solution 9 is put into the evaporator 2.
  • the evaporating pot 2 is heated and the liquid spraying device 1 is operated, the entire heat transfer area of the evaporating pot 2 can be used, so that the liquid immediately rises in temperature and starts to boil.
  • the amount of evaporation is maximum irrespective of the liquid level, and the distillation column 3 is immediately stabilized.
  • the stock solution 9 having passed through the heat exchanger 4 is supplied to the evaporator 2 at a constant speed. At this time, the supply of heat is controlled so that the amount of evaporation is constant.
  • the amount of evaporation is increased by raising the heating temperature.
  • the amount of evaporation is increased, and the amount of liquid in the evaporator 2 is kept constant.
  • the supply of the undiluted solution 9 to the distillation tower 3 It is preferable to perform the process from the middle to the top of the distillation tower 3 (the distillation shelf of the distillation tower or the top of the packing). Depending on the substance to be distilled, the most preferable is to supply the stock solution 9 from the top of the distillation column 3. Note that the return flow 8 may or may not be performed.
  • the heat can be directly recovered even if the raw material 9 is supplied from the top of the distillation column 3 without using the heat exchanger 4, which is advantageous in some cases.
  • the supply of the raw material 9 is terminated, and the concentration of the highest boiling component (highest boiling component) contained in the distillate received in the fraction receiver 6 If is less than the specified value, the first distillation is completed. If the concentration of the highest boiling component is higher than the specified value, it is necessary to perform distillation again.
  • the distillate from (6) is passed through the heat exchanger (4), supplied again to the evaporator (2), and collected in the fraction receiver (7) so that the highest boiling point component in the fraction receiver (7) becomes lower than the specified value. Distillation is carried out. By this operation, the highest boiling point component is recovered in the evaporator 2.
  • the distillate in the fraction receiver 6 is a low-boiling component
  • the one recovered in the evaporator 2 is a high-boiling component.
  • the valve of the pipe between the bottom liquid of the distillation tower 3 and the evaporator 2 is closed to prevent the bottom liquid from entering the evaporator 2.
  • the heating of the evaporator 2 is stopped, and the highest boiling point component is extracted from the evaporator 2.
  • the valve is opened, and the bottom liquid is introduced into the evaporator 2.
  • heating of the evaporator 2 (reboiler) is started, and the evaporator 2 is washed, and then, the washed liquid is removed.
  • the liquid in the fraction receiver 7 is supplied to the distillation column 3 through the heat exchanger 4, and the same operation is repeated, whereby the second high-boiling component is recovered in the evaporator 2.
  • this distillation operation By sequentially repeating this distillation operation, various components having different boiling points in the stock solution 9 are separated and recovered.
  • the advantage of the two methods is that the low-boiling substance of the stock solution 9 is not heated for a long time.
  • the entire amount of the raw material is put into the evaporator 2 (reboiler) and distilled, so that the raw material (particularly, low-boiling components) is exposed to the boiling temperature for a long time.
  • the low-boiling components are heated only while passing through the distillation column 3, they are most suitable for distillation of heat-sensitive substances.
  • a second apparatus is a semi-continuous batch distillation apparatus including an evaporator having a liquid spraying device, a heat exchanger, a capacitor and a fraction receiver, wherein steam from the evaporator is used as the heat source.
  • the heat exchanger is provided between the evaporator and the condenser, and the undiluted solution passes through the heat exchanger. Then, it is configured to be supplied to the evaporator. It differs from the first device in that the distillation column 3 is not provided. That is, in the first apparatus, the function of the distillation column is stopped.
  • Each element constituting the second device has the same function as the first invention.
  • the distillation method (third method) using the second apparatus of the present invention will be described with reference to FIG. However, there is no distillation column 3 and the steam from the evaporator 2 is directly supplied to the heat exchanger 4 and there is no reflux 8.
  • a certain amount of the stock solution 9 is put into the evaporator 2.
  • the evaporating pot 2 is heated and the liquid spraying device 1 is operated, the temperature of the liquid (stock solution 9) in the evaporating pot 2 immediately rises and starts boiling. Since the steam from the evaporator 2 is supplied to the heat exchanger 4, the supply stock solution 9 can recover heat when passing through the heat exchanger 4.
  • evaporation can be started at the same time that the stock solution 9 is put into the evaporator 2, so that the operation time is reduced.
  • the liquid is stored in the evaporator 2 and then heated, it takes time to store the liquid.
  • heating can be performed while supplying undiluted solution 9, so undiluted solution 9 is evaporated Less time is needed to store in kettle 2.
  • This apparatus is particularly effective when distilling and recovering low-boiling components from a stock solution 9 which does not require a distillation column or reflux and contains a substance having a large difference in boiling point between high-boiling components and low-boiling components.
  • the stock solution 9 having passed through the heat exchanger 4 is continuously supplied to the evaporator 2. While the stock solution 9 is being supplied, the distillate is received in the fraction receiver 6 and distillation is continued. Even if the supply of the stock solution 9 is completed, the distillation is continued as long as the concentration of the low-boiling components in the fraction receiver 6 is within the specified value.
  • This operation is excellent in that distillation can be performed while recovering heat as compared with the conventional case in which the raw material 9 is entirely put into the evaporator 2 and then evaporated. Further, since the stock solution 9 can be supplied while removing the low-boiling components, the stock solution 9 in an amount corresponding to the amount of the low-boiling components can be further supplied to the evaporator 2. Therefore, it is superior to the above conventional case in that the processing amount of the stock solution 9 can be increased.
  • the heat transfer surface can be maximally used with a small amount of liquid. Therefore, unlike the conventional batch distillation apparatus, it is not necessary to put the whole amount of the stock solution 9 to be distilled into the evaporator 2 in advance. Further, by exchanging heat between the vapor and the stock solution 9, heat can be recovered to the stock solution 9 to be supplied. For example, if the undiluted solution 9 is 25 ° C and 1000 L water, the undiluted solution 9 is evaporated as before by raising the temperature of the undiluted solution supplied by the generated steam to 90 ° C. Compared to the method of starting heating after putting in kettle 2 (batch type), it is possible to recover about 7425 KCa1 of heat. Assuming that all the water evaporates, the required energy is 5390000 Kca1, so the recovered energy is more than 13%.
  • Example 1 and Comparative Example 1 Example 1 and Comparative Example 1
  • Example 1 As Comparative Example 1, an evaporator with the same volume and heat transfer area as in Example 1 but without the liquid spraying device 1 was used. 100 L of the stock solution is put into the evaporator and heated in the same manner as in Example 1. Since the heat transfer area is the same as when a liquid sprayer is used and when the liquid is full, it takes 100 minutes for 100 L of the stock solution to reach 100 ° C. .
  • the apparatus of the present invention when comparing the time until the start of evaporation (heating time), the apparatus of the present invention is earlier by 99 minutes.
  • Comparative Example 1 as the liquid level decreases and the heat transfer area decreases, the evaporation rate decreases, and the distillation time becomes longer than that of the apparatus of the present invention.
  • the device of the present invention since the device of the present invention has the liquid spraying means 1, it is possible to always use the entire heat transfer area regardless of the amount of the liquid. Therefore, the distillation time is shorter than in Comparative Example 1.
  • using the distillation apparatus of the present invention reduces the distillation time by at least 99 minutes + ⁇ compared to the conventional batch method.
  • Example 2 and Comparative Example 2 When 100 L of the stock solution was treated and the A component was distilled off, both Example 2 and Comparative Example 2 weighed 45 wt. Capacity is reduced. Since this remaining liquid contains the B component and the C component, the B component is distilled next.
  • the distillation rate of the component B is theoretically the same between the method of the present invention and the method of the comparative example.
  • the evaporation rate is reduced because the heat transfer area corresponding to the amount is not used because 45% by weight of the A component evaporates. Therefore, a further distillation time is required.
  • the A 000 L stock solution can be continuously processed to separate the A, B and C components. That is, by using the method of the present invention, 900 L of undiluted solution can be further processed while minimizing the time for heating and the energy for raising the temperature (that is, performing heat recovery). In contrast, the method of Comparative Example 2 requires a heating time and energy for heating.
  • distillation in batch distillation, it was necessary to start heating by putting a stock solution into an evaporator, but when using an evaporator with the liquid spraying device of the present invention, distillation can be performed continuously and at a high evaporation rate.
  • the size of the evaporator may be smaller than the volume of the stock solution.
  • the stock solution can be supplied until the liquid (bottom liquid) from which the low-boiling components have been removed becomes full in the evaporator. In other words, it can process twice as much liquid as before, and the equipment has twice the capacity.
  • the conventional external circulation heating method can also distill low boiling components, but only while the liquid can circulate. Furthermore, this conventional method requires a considerable amount of liquid from the beginning, and in the latter half when the amount of liquid decreases, external circulation cannot be performed, and the distillation column cannot be operated.
  • the distillation apparatus of the present invention is provided with a liquid spraying apparatus, even if the amount of liquid is small, the liquid is pumped up by centrifugal force and sprayed on the inner wall of the evaporator to form a vaporizer. All heat transfer areas are available. Therefore, even if the amount becomes small, the amount of steam is constant, and the distillation column can be operated at the highest efficiency.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

La présente invention concerne un dispositif de distillation qui est plus économe en énergie et plus efficace que les dispositifs de distillation de l'état de la technique. Ce dispositif de distillation comprend un alambic d'évaporation, qui présente un dispositif de pulvérisation de liquide, une colonne de distillation, un échangeur thermique, un condenseur et un récepteur de fraction. Le dispositif de distillation est un dispositif de distillation discontinue. L'échangeur thermique est placé entre la colonne de distillation et le condenseur et est conçu pour échanger de la chaleur avec le liquide brut qui alimente la colonne de distillation. La vapeur provenant de la chaudière de distillation passe à travers la colonne de distillation et est liquéfiée par l'échangeur thermique et/ou par le condenseur. Une partie du liquide résultant est récupérée par le récepteur de fraction et le reste du liquide est renvoyé à la colonne de distillation. Le fond de cette colonne de distillation retourne à l'alambic d'évaporation.
PCT/JP2002/001705 2001-09-10 2002-02-25 Dispositif de distillation et procede de distillation mettant en oeuvre ledit dispositif WO2003022389A1 (fr)

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Application Number Priority Date Filing Date Title
JP2003526513A JP4058410B2 (ja) 2001-09-10 2002-02-25 蒸留装置および該装置を用いる蒸留方法

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JP2001274085 2001-09-10
JP2001-274085 2001-09-10

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102564187A (zh) * 2011-07-06 2012-07-11 中国海洋石油总公司 冷凝管和蒸馏装置以及降低釜液轻组分含量的蒸馏方法
CN103191573A (zh) * 2013-03-26 2013-07-10 安徽圣诺贝化学科技有限公司 一种精馏装置
JP2020515409A (ja) * 2017-04-03 2020-05-28 エコディスト, インク.Ecodyst, Inc. 大規模独立型チラー、オールインワンロータリ蒸発器及びそれに関連する方法
CN112357883A (zh) * 2020-09-29 2021-02-12 中国科学院上海应用物理研究所 一种超轻水的制备装置及其制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06269603A (ja) * 1993-03-19 1994-09-27 Tsukada Fuainesu:Kk 真空蒸留装置
JPH10137502A (ja) * 1996-11-11 1998-05-26 英正 ▲鶴▼田 多成分混合物の分別蒸留方法
JP2000271404A (ja) * 1999-03-25 2000-10-03 Kansai Kagaku Kikai Seisaku Kk 蒸留塔塔底加熱装置および加熱方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06269603A (ja) * 1993-03-19 1994-09-27 Tsukada Fuainesu:Kk 真空蒸留装置
JPH10137502A (ja) * 1996-11-11 1998-05-26 英正 ▲鶴▼田 多成分混合物の分別蒸留方法
JP2000271404A (ja) * 1999-03-25 2000-10-03 Kansai Kagaku Kikai Seisaku Kk 蒸留塔塔底加熱装置および加熱方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102564187A (zh) * 2011-07-06 2012-07-11 中国海洋石油总公司 冷凝管和蒸馏装置以及降低釜液轻组分含量的蒸馏方法
CN103191573A (zh) * 2013-03-26 2013-07-10 安徽圣诺贝化学科技有限公司 一种精馏装置
JP2020515409A (ja) * 2017-04-03 2020-05-28 エコディスト, インク.Ecodyst, Inc. 大規模独立型チラー、オールインワンロータリ蒸発器及びそれに関連する方法
JP7208970B2 (ja) 2017-04-03 2023-01-19 エコディスト，インク． 大規模独立型チラー、オールインワンロータリ蒸発器及びそれに関連する方法
CN112357883A (zh) * 2020-09-29 2021-02-12 中国科学院上海应用物理研究所 一种超轻水的制备装置及其制备方法

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