WO2012153523A1 - Falling liquid film evaporator - Google Patents
Falling liquid film evaporator Download PDFInfo
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- WO2012153523A1 WO2012153523A1 PCT/JP2012/003019 JP2012003019W WO2012153523A1 WO 2012153523 A1 WO2012153523 A1 WO 2012153523A1 JP 2012003019 W JP2012003019 W JP 2012003019W WO 2012153523 A1 WO2012153523 A1 WO 2012153523A1
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- evaporator
- coiled wire
- falling
- liquid
- liquid film
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
- B01D1/222—In rotating vessels; vessels with movable parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
- B01D1/24—Evaporating by bringing a thin layer of the liquid into contact with a heated surface to obtain dry solids
Definitions
- the present invention relates to a falling film evaporator. More specifically, the present invention is a falling film suitable for a micro-size or millimeter-size manufacturing system that has high evaporation efficiency, can easily remove dried solids and scales accumulated in the evaporator, and can be easily assembled. Relates to an evaporator.
- Evaporator is used to remove volatiles, concentrate solutions, or fractionate.
- a falling film type evaporator in which the liquid is formed into a thin film and allowed to evaporate by flowing down the inner peripheral surface of the heating tube or the like, or the container containing the liquid is rotated to remove the liquid from the container.
- a rotary evaporator or the like is known that is attached to an inner wall surface in a thin film and evaporated.
- Patent Document 1 As a falling liquid film type evaporator, for example, one in which a number of grooves extending in the vertical direction are formed on the inner peripheral surface of the heating tube (Patent Document 1), and the lower portion of the inner peripheral surface of the heating tube is made bellows (patent) Document 2), one provided with a ring-shaped projection inside the downcomer provided in the heating pipe (Patent Document 3), and one in which a spiral stepped support is brought into contact with the inner peripheral surface of the cylindrical heating pipe ( Patent Document 4) discloses an apparatus in which a large number of microgrooves are provided on the evaporator surface (Non-Patent Document 1).
- JP 2008-289984 A JP-A-8-89703 JP-A-10-76102 JP-A-6-194073
- an object of the present invention is to provide a falling liquid film suitable for a micro-size or millimeter-size manufacturing system that has good evaporation efficiency, can easily remove dried solids and scales accumulated in the evaporator, and can be easily assembled. It is to provide a type evaporator.
- the present inventor has intensively studied to achieve the above object, and when a wire having a specific shape is arranged in the evaporator of the evaporator, the liquid is evaporated while flowing down the inner surface of the evaporator and the surface of the wire in a film form. It has been found that the evaporation efficiency is increased. Furthermore, it has been found that by moving the wire in the evaporator, dried solids and scales deposited on the inner surface of the evaporator and the surface of the wire can be easily removed. The present invention has been completed based on this finding.
- the present invention includes the following aspects.
- the falling film evaporator of the present invention has good evaporation efficiency, easy to remove dried solids and scales accumulated in the evaporator, easy to assemble, and suitable for micro-size or millimeter-size manufacturing systems. is there. Further, in the conventional falling liquid film evaporator, various devices are required for the liquid supply port so that the liquid spreads over the entire heat transfer surface. On the other hand, in the falling liquid film type evaporator of the present invention, there is an effect that the liquid spreads uniformly over the entire heat transfer surface by the coiled wire material without special measures for the liquid supply port.
- the falling film type evaporator of the present invention shown in FIG. 1 has an evaporator 2, a coiled wire 3, and a heating means 4, and the coiled wire 3 is installed in the evaporator 2.
- the falling liquid film evaporator 1 shown in FIG. 1 includes a condenser 5, a liquid container 6, a pump 7, a concentrate receiving container 8, a volatile content receiving container 9, and a mist separator 10. It is attached.
- the evaporator 2 shown in FIG. 1 consists of a container whose internal space is a columnar shape.
- the evaporator constituting the present invention is not limited to a container having a cylindrical inner space.
- a container having a cylindrical inner space is preferable in that the liquid easily spreads on the inner surface of the evaporator and the liquid can be heated uniformly.
- the inner surface of the evaporator is preferably smooth in that there are few sticking matters and it is easy to remove the sticking matters.
- the thickness and material of the evaporator can be appropriately selected from the viewpoints of strength, thermal conductivity, corrosion resistance, heat resistance, and the like.
- titanium metal titanium-based alloy, nickel-based alloy (for example, Hastelloy (registered trademark); Inconel (registered trademark)), cobalt-based alloy (for example, Stellite (registered trademark)), stainless steel, etc.
- Hastelloy registered trademark
- Inconel registered trademark
- cobalt-based alloy for example, Stellite (registered trademark)
- stainless steel etc.
- the thing which consists of these alloys is mentioned. Especially, what consists of an alloy is preferable at the point of thermal conductivity.
- a coiled wire 3 shown in FIG. 1 is formed by winding a wire in a coil shape.
- the shape of the coiled wire is not particularly limited as long as it has a coil outer diameter substantially equal to the inner diameter of the evaporator 2.
- a cylindrical coiled wire having a constant coil outer diameter can be used.
- a frustoconical inner space a frustoconical coiled wire can be used.
- a cylindrical coil-shaped wire having a constant coil outer diameter is preferable in that it is easy to remove dried solids and scales accumulated in the evaporator and is easy to assemble.
- the number of turns, the wire diameter, the free length, the winding direction and the like of the coiled wire are not particularly limited, and can be appropriately selected from the viewpoint of liquid separation ability, evaporation ability, and the like.
- the coiled wire may be closely wound or pitch wound. In the case of pitch winding, the pitch is not particularly limited, and may be equal pitch or unequal pitch.
- the material of the coiled wire can be appropriately selected from the viewpoints of strength, thermal conductivity, corrosion resistance, heat resistance, and the like. Examples of the coiled wire material include the materials exemplified in the description of the evaporator.
- the coiled wire 3 is installed in the evaporator 2.
- the coiled wire 3 is installed over the entire range from the top to the bottom of the evaporator 2, but is not limited thereto.
- it can be installed in a range only on the bottom side of the evaporator and can be installed in a range only on the top side.
- the coiled wire is close to the evaporator inner surface at an interval of contact or not.
- a spiral channel-like space is formed between the inner surface of the evaporator and the coiled wire.
- a spiral groove gap is formed inside the coiled wire.
- the coiled wire is preferably movable in the evaporator.
- the inner surface of the evaporator is rubbed by the coiled wire, and dried solids and scales can be peeled off.
- the coiled wire can be taken out from the evaporator.
- the heating means 4 shown in FIG. 1 is a heat medium jacket.
- the heating means constituting the present invention is not limited to the heat medium jacket, and may be an external heating type heating means or an internal heating type heating means.
- Examples of the external heating method include a method of installing a heat medium jacket as shown in FIG. 1 and a method of installing a heating wire on the outer surface of the evaporator.
- As an internal heating method a method of flowing a heating medium through a coiled wire (a tube wound in a coil shape), a method of installing a heating wire in an evaporator, a method of using a coiled wire itself as a heating wire, And a method of installing a heat source.
- an external heating type heating means is preferable, and a heat medium jacket is particularly preferable.
- the heating means of the external heating method may be installed in the entire outer surface range of the evaporator or in a partial range.
- the heating temperature by the heating means is not particularly limited as long as the volatile component evaporates. However, if the heating temperature is too high, dry matter or scale may be generated, and if it is too low, evaporation may be insufficient. Further, the inside of the falling liquid film evaporator can be decompressed and the liquid can be evaporated by low-temperature heating.
- the liquid can be evaporated while flowing down the inner surface of the evaporator 2 and the surface of the coiled wire 3 into a film shape.
- the liquid flows down along a spiral channel-shaped space formed between the inner surface of the evaporator and the coiled wire or a groove-shaped space formed inside the coiled wire, and the entire inner surface of the evaporator Therefore, the heat transfer area increases and high evaporation efficiency can be obtained.
- the liquid can be supplied from the uppermost part of the coiled wire or can be supplied from an intermediate part.
- the liquid to be evaporated is supplied from the liquid container 6 by the pump 7 into the evaporator 2 through the liquid supply port 2-1 on the side surface of the evaporator 2. It is not limited to this.
- the liquid may be supplied from the top of the evaporator 2.
- a preheater may be installed in front of the evaporator 2 to heat the supplied liquid to a desired temperature.
- the method for discharging the volatile matter is not particularly limited, but in the system shown in FIG. 2, the volatile matter is discharged from the top of the evaporator 2.
- the mist is returned to the evaporator 2 in the mist separator 10 installed at the top of the evaporator 2.
- Volatile components are liquefied in the condenser 5 installed at the top and collected in the volatile component receiving container 9.
- the condenser include a double-pipe type, a multi-pipe type, a coil type, a plate type, a plate fin type, a spiral type, and a jacket type.
- the liquid not evaporated from the lower portion of the evaporator 2 is discharged and collected in the concentrate receiving container 8.
- the top of the evaporator 2 is sealed. Volatiles and liquid that has not been evaporated are discharged from the bottom of the evaporator 2 to the concentrate receiving container 8. The liquid that has not been evaporated accumulates in the bottom of the container 8. Volatile components are extracted from the upper part of the concentrate receiving container 8 as it is and liquefied in the condenser 5. The liquefied volatile matter is collected at the bottom of the volatile matter receiving container 9 and collected.
- Example 1 An evaporator made of a stainless steel circular tube (20A, SUS304 Sch80) having a height of 270 mm was prepared. An exhaust port was installed on the top of the evaporator, a liquid supply port was installed on the side of 260 mm in height, and a drain port was installed on the bottom of the evaporator. A mist separator 10 was installed at the exhaust port. A cylindrical heat medium jacket (40A, SUS304TP Sch20S, 230 mm) was installed on the outer surface of the evaporator over a range from the bottom of the evaporator to 230 mm in height.
- a coiled wire (number of windings: 66, wire diameter: 2 mm, free length: 233 mm, winding direction: S winding, pitch: 3.5 mm, material: SUS304) is inserted into the evaporator, and the height from the bottom of the evaporator A falling liquid film evaporator was assembled by installing over a range up to 233 mm. Steam at a temperature of 130 ° C. was passed through the heating medium jacket of the falling film evaporator. Water was supplied from the liquid supply port at flow rates of 29 ml / min, 38 ml / min, and 48 ml / min, respectively. Evaporation operation was performed with the pressure in the evaporator at atmospheric pressure.
- Example 1 A falling liquid film evaporator was assembled in the same manner as in Example 1 except that the coiled wire was not inserted into the evaporator. Steam at a temperature of 130 ° C. was passed through the heating medium jacket of the falling film evaporator. Water was supplied from the liquid supply port at flow rates of 10 ml / min, 29 ml / min, 36 ml / min, and 48 ml / min, respectively. Evaporation operation was performed with the pressure in the evaporator at atmospheric pressure. The overall heat transfer coefficient at each flow rate was calculated. The results are shown in FIG. When the flow of water was observed with a glass model device of the same size and structure as the falling film evaporator, the water was flowing down a part of the inner surface of the evaporator in a thin streak-like flow. .
- the falling liquid film evaporator of the present invention in which the coiled wire is arranged has an overall heat transfer coefficient about 5 times higher than that of the falling liquid film evaporator in which the coiled wire is not arranged, and the evaporation efficiency. I understand that is good.
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The present invention is a falling liquid film evaporator having an evaporator formed from a vessel having a cylindrically shaped internal space, a cylindrically shaped coiled wire material having a coil outside diameter substantially the same as the inside diameter of the evaporator, and a heating means such as a heating medium jacket. The coiled wire member is disposed in a movable state within the evaporator, and a liquid can be evaporated while flowing downward in a film form on the inside surface of the evaporator and the surface of the coiled wire material. The falling liquid film evaporator, which is suitable for use in micro-size and millimeter-size manufacturing systems, has excellent evaporation efficiency, with easy removal of dried material and scale deposited inside the evaporator vessel and simple assembly.
Description
本発明は、流下液膜式蒸発器に関する。より詳細に、本発明は、蒸発効率が良く、蒸発器内に堆積する乾固物やスケールの除去が容易で、かつ組み立てが簡便な、マイクロサイズ又はミリサイズの製造システムに好適な流下液膜式蒸発器に関する。
The present invention relates to a falling film evaporator. More specifically, the present invention is a falling film suitable for a micro-size or millimeter-size manufacturing system that has high evaporation efficiency, can easily remove dried solids and scales accumulated in the evaporator, and can be easily assembled. Relates to an evaporator.
揮発分の除去、溶液等の濃縮、又は分留のために、蒸発器が用いられる。該蒸発器としては、液を薄い膜状にして加熱管等の内周面を流下させて蒸発させるようにした流下液膜式蒸発器や、液を入れた容器を回転させて液を容器の内壁面に薄く膜状に付着させて蒸発させるようにしたロータリーエバポレーター等が知られている。
Evaporator is used to remove volatiles, concentrate solutions, or fractionate. As the evaporator, a falling film type evaporator in which the liquid is formed into a thin film and allowed to evaporate by flowing down the inner peripheral surface of the heating tube or the like, or the container containing the liquid is rotated to remove the liquid from the container. 2. Description of the Related Art A rotary evaporator or the like is known that is attached to an inner wall surface in a thin film and evaporated.
流下液膜式蒸発器として、例えば、加熱管の内周面に上下方向に延びる多数の溝を形成したもの（特許文献１）、加熱管の内周面の下部を蛇腹状にしたもの（特許文献２）、加熱管に設けられた下降管の内側にリング状の突起を設けたもの（特許文献３）、らせん形階段状支持体を筒状加熱管の内周面に接触させたもの（特許文献４）、蒸発器表面に多数のマイクログルーブを設けたもの（非特許文献１）が開示されている。
As a falling liquid film type evaporator, for example, one in which a number of grooves extending in the vertical direction are formed on the inner peripheral surface of the heating tube (Patent Document 1), and the lower portion of the inner peripheral surface of the heating tube is made bellows (patent) Document 2), one provided with a ring-shaped projection inside the downcomer provided in the heating pipe (Patent Document 3), and one in which a spiral stepped support is brought into contact with the inner peripheral surface of the cylindrical heating pipe ( Patent Document 4) discloses an apparatus in which a large number of microgrooves are provided on the evaporator surface (Non-Patent Document 1).
これらの蒸発器は、蒸発器内面に凹凸が多数あり形状が複雑である。そのためこれらの蒸発器内に堆積する乾固物やスケールの除去に手間がかかる場合がある。また、マイクロサイズやミリサイズの反応装置に接続するような小型の蒸発器として利用しようとしても少ない流量では液が伝熱面全体に広がりにくく蒸発効率が低い。
したがって、本発明の課題は、蒸発効率が良く、蒸発器内に堆積する乾固物やスケールの除去が容易で、かつ組み立てが簡便な、マイクロサイズ又はミリサイズの製造システムに好適な流下液膜式蒸発器を提供することにある。 These evaporators are complicated in shape with many irregularities on the inner surface of the evaporator. Therefore, it may take time to remove the dry matter and scale accumulated in these evaporators. Even if it is intended to be used as a small evaporator connected to a micro-size or millimeter-size reactor, the liquid is difficult to spread over the entire heat transfer surface at a low flow rate, and the evaporation efficiency is low.
Therefore, an object of the present invention is to provide a falling liquid film suitable for a micro-size or millimeter-size manufacturing system that has good evaporation efficiency, can easily remove dried solids and scales accumulated in the evaporator, and can be easily assembled. It is to provide a type evaporator.
したがって、本発明の課題は、蒸発効率が良く、蒸発器内に堆積する乾固物やスケールの除去が容易で、かつ組み立てが簡便な、マイクロサイズ又はミリサイズの製造システムに好適な流下液膜式蒸発器を提供することにある。 These evaporators are complicated in shape with many irregularities on the inner surface of the evaporator. Therefore, it may take time to remove the dry matter and scale accumulated in these evaporators. Even if it is intended to be used as a small evaporator connected to a micro-size or millimeter-size reactor, the liquid is difficult to spread over the entire heat transfer surface at a low flow rate, and the evaporation efficiency is low.
Therefore, an object of the present invention is to provide a falling liquid film suitable for a micro-size or millimeter-size manufacturing system that has good evaporation efficiency, can easily remove dried solids and scales accumulated in the evaporator, and can be easily assembled. It is to provide a type evaporator.
本発明者は、上記目的を達成するために鋭意検討し、蒸発器の蒸発缶内に特定形状の線材を配置したところ、蒸発缶の内面及び線材の表面を膜状に流下させながら液を蒸発させることができ、それによって蒸発効率が高くなることを見出した。さらに線材を蒸発缶内で動かすことによって蒸発缶の内面や線材の表面に堆積する乾固物やスケールを容易に除去できることを見出した。本発明は、この知見に基づいて完成するに至ったものである。
The present inventor has intensively studied to achieve the above object, and when a wire having a specific shape is arranged in the evaporator of the evaporator, the liquid is evaporated while flowing down the inner surface of the evaporator and the surface of the wire in a film form. It has been found that the evaporation efficiency is increased. Furthermore, it has been found that by moving the wire in the evaporator, dried solids and scales deposited on the inner surface of the evaporator and the surface of the wire can be easily removed. The present invention has been completed based on this finding.
すなわち、本発明は以下の態様を含む。
〈１〉蒸発缶と、蒸発缶の内径と略等しいコイル外径を有するコイル状線材と、加熱手段とを有し、コイル状線材が蒸発缶内に設置され、蒸発缶の内面及びコイル状線材の表面を膜状に流下させながら液を蒸発させることができる、流下液膜式蒸発器。
〈２〉蒸発缶が円柱状内部空間を有する容器からなるものである、前記〈１〉に記載の流下液膜式蒸発器。 That is, the present invention includes the following aspects.
<1> An evaporator, a coiled wire having a coil outer diameter substantially equal to the inner diameter of the evaporator, and a heating means, the coiled wire being installed in the evaporator, and the inner surface of the evaporator and the coiled wire A falling liquid film evaporator that can evaporate liquid while flowing down the surface of the film.
<2> The falling liquid film evaporator according to <1>, wherein the evaporator is composed of a container having a cylindrical inner space.
〈１〉蒸発缶と、蒸発缶の内径と略等しいコイル外径を有するコイル状線材と、加熱手段とを有し、コイル状線材が蒸発缶内に設置され、蒸発缶の内面及びコイル状線材の表面を膜状に流下させながら液を蒸発させることができる、流下液膜式蒸発器。
〈２〉蒸発缶が円柱状内部空間を有する容器からなるものである、前記〈１〉に記載の流下液膜式蒸発器。 That is, the present invention includes the following aspects.
<1> An evaporator, a coiled wire having a coil outer diameter substantially equal to the inner diameter of the evaporator, and a heating means, the coiled wire being installed in the evaporator, and the inner surface of the evaporator and the coiled wire A falling liquid film evaporator that can evaporate liquid while flowing down the surface of the film.
<2> The falling liquid film evaporator according to <1>, wherein the evaporator is composed of a container having a cylindrical inner space.
本発明の流下液膜式蒸発器は、蒸発効率が良く、蒸発器内に堆積する乾固物やスケールの除去が容易で、かつ組み立てが簡便で、マイクロサイズ又はミリサイズの製造システムに好適である。さらに、従来の流下液膜式蒸発器では、液が伝熱面全体に広がるようにするために液の供給口に種々の工夫が必要となる。これに対して、本発明の流下液膜式蒸発器では、液の供給口に特別な工夫をしなくても、コイル状線材によって伝熱面全体に液が一様に広がる効果がある。
The falling film evaporator of the present invention has good evaporation efficiency, easy to remove dried solids and scales accumulated in the evaporator, easy to assemble, and suitable for micro-size or millimeter-size manufacturing systems. is there. Further, in the conventional falling liquid film evaporator, various devices are required for the liquid supply port so that the liquid spreads over the entire heat transfer surface. On the other hand, in the falling liquid film type evaporator of the present invention, there is an effect that the liquid spreads uniformly over the entire heat transfer surface by the coiled wire material without special measures for the liquid supply port.
本発明の流下液膜式蒸発器を、図面を参照しながら説明する。なお、本発明は、該実施形態によって限定されるものではなく、本発明の趣旨及び目的に適う範囲で、変形、追加、又は修正したものも包含する。
The falling film evaporator of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment, The deformation | transformation, addition, or correction is included in the range suitable for the meaning and objective of this invention.
図１に示す本発明の流下液膜式蒸発器は、蒸発缶２と、コイル状線材３と、加熱手段４とを有し、コイル状線材３が蒸発缶２内に設置されている。また、図２に示すシステムでは、図１に示す流下液膜式蒸発器１に、凝縮器５、液容器６、ポンプ７、濃縮物受け容器８、揮発分受け容器９、およびミストセパレーター１０が付帯されている。
The falling film type evaporator of the present invention shown in FIG. 1 has an evaporator 2, a coiled wire 3, and a heating means 4, and the coiled wire 3 is installed in the evaporator 2. In the system shown in FIG. 2, the falling liquid film evaporator 1 shown in FIG. 1 includes a condenser 5, a liquid container 6, a pump 7, a concentrate receiving container 8, a volatile content receiving container 9, and a mist separator 10. It is attached.
（蒸発缶）
図１に示す蒸発缶２は内部空間が円柱状となっている容器からなるものである。本発明を構成する蒸発缶は、円柱状の内部空間を有する容器に限定されない。例えば、円錐状、円錘台状、楕円球状等などの内部空間を有する容器からなるものが挙げられる。中でも、液の蒸発缶内面への広がり易さや、液を均一に加熱できる等の点で、円柱状の内部空間を有する容器が好ましい。
蒸発缶の内面は、固着物が少なく、固着物の取り除きが容易という点でなめらかであることが好ましい。 (Evaporator)
Theevaporator 2 shown in FIG. 1 consists of a container whose internal space is a columnar shape. The evaporator constituting the present invention is not limited to a container having a cylindrical inner space. For example, what consists of containers which have internal spaces, such as a cone shape, a frustum shape, and an elliptical sphere, is mentioned. Among these, a container having a cylindrical inner space is preferable in that the liquid easily spreads on the inner surface of the evaporator and the liquid can be heated uniformly.
The inner surface of the evaporator is preferably smooth in that there are few sticking matters and it is easy to remove the sticking matters.
図１に示す蒸発缶２は内部空間が円柱状となっている容器からなるものである。本発明を構成する蒸発缶は、円柱状の内部空間を有する容器に限定されない。例えば、円錐状、円錘台状、楕円球状等などの内部空間を有する容器からなるものが挙げられる。中でも、液の蒸発缶内面への広がり易さや、液を均一に加熱できる等の点で、円柱状の内部空間を有する容器が好ましい。
蒸発缶の内面は、固着物が少なく、固着物の取り除きが容易という点でなめらかであることが好ましい。 (Evaporator)
The
The inner surface of the evaporator is preferably smooth in that there are few sticking matters and it is easy to remove the sticking matters.
蒸発缶の厚さや材質は、強度、熱伝導性、耐食性、耐熱性などの観点から適宜選択できる。耐食性や耐熱性の観点から、チタン金属、チタン基合金、ニッケル基合金（例えば、ハステロイ（登録商標）；インコネル（登録商標））、コバルト基合金（例えば、ステライト（登録商標））、ステンレス鋼などの合金からなるものが挙げられる。中でも、熱伝導性の点で合金からなるものが好ましい。
The thickness and material of the evaporator can be appropriately selected from the viewpoints of strength, thermal conductivity, corrosion resistance, heat resistance, and the like. From the viewpoint of corrosion resistance and heat resistance, titanium metal, titanium-based alloy, nickel-based alloy (for example, Hastelloy (registered trademark); Inconel (registered trademark)), cobalt-based alloy (for example, Stellite (registered trademark)), stainless steel, etc. The thing which consists of these alloys is mentioned. Especially, what consists of an alloy is preferable at the point of thermal conductivity.
（コイル状線材）
図１に示すコイル状線材３は、線材をコイル状に巻いてなるものである。コイル状線材の形状は、蒸発缶２の内径と略等しいコイル外径を有しているものであれば特に限定されない。例えば、蒸発缶が円柱状の内部空間を有する容器である場合には、コイル外径が一定な円筒形状のコイル状線材を用いることができる。また、蒸発缶が円錐台状の内部空間を有する容器である場合には、円錐台形状のコイル状線材を用いることができる。中でも、蒸発器内に堆積する乾固物やスケールの除去が容易で、かつ組み立てが簡便な点で、コイル外径が一定な円筒形状のコイル状線材が好ましい。 (Coiled wire)
A coiledwire 3 shown in FIG. 1 is formed by winding a wire in a coil shape. The shape of the coiled wire is not particularly limited as long as it has a coil outer diameter substantially equal to the inner diameter of the evaporator 2. For example, when the evaporator is a container having a cylindrical inner space, a cylindrical coiled wire having a constant coil outer diameter can be used. Further, when the evaporator is a container having a frustoconical inner space, a frustoconical coiled wire can be used. Among these, a cylindrical coil-shaped wire having a constant coil outer diameter is preferable in that it is easy to remove dried solids and scales accumulated in the evaporator and is easy to assemble.
図１に示すコイル状線材３は、線材をコイル状に巻いてなるものである。コイル状線材の形状は、蒸発缶２の内径と略等しいコイル外径を有しているものであれば特に限定されない。例えば、蒸発缶が円柱状の内部空間を有する容器である場合には、コイル外径が一定な円筒形状のコイル状線材を用いることができる。また、蒸発缶が円錐台状の内部空間を有する容器である場合には、円錐台形状のコイル状線材を用いることができる。中でも、蒸発器内に堆積する乾固物やスケールの除去が容易で、かつ組み立てが簡便な点で、コイル外径が一定な円筒形状のコイル状線材が好ましい。 (Coiled wire)
A coiled
また、コイル状線材の巻数、線径、自由長、巻方向等は特に限定されず、液の分離能、蒸発能等の観点から適宜選択できる。更に、コイル状線材は、密着巻であってもピッチ巻であっても良い。ピッチ巻の場合は、ピッチは特に限定されず、等ピッチであっても、不等ピッチであってもよい。コイル状線材の材質は、強度、熱伝導性、耐食性、耐熱性などの観点から適宜選択できる。コイル状線材の材料としては、蒸発缶の説明において例示した材料が挙げられる。
Further, the number of turns, the wire diameter, the free length, the winding direction and the like of the coiled wire are not particularly limited, and can be appropriately selected from the viewpoint of liquid separation ability, evaporation ability, and the like. Furthermore, the coiled wire may be closely wound or pitch wound. In the case of pitch winding, the pitch is not particularly limited, and may be equal pitch or unequal pitch. The material of the coiled wire can be appropriately selected from the viewpoints of strength, thermal conductivity, corrosion resistance, heat resistance, and the like. Examples of the coiled wire material include the materials exemplified in the description of the evaporator.
コイル状線材３は蒸発缶２内に設置されている。図１に示す流下液膜式蒸発器ではコイル状線材３は蒸発缶２の頂部から底部に亘る全範囲に設置されているが、これに限定されない。例えば、蒸発缶の底部側だけの範囲に設置することができ、また頂部側だけの範囲に設置することができる。コイル状線材を蒸発缶内に設置したときに、コイル状線材は蒸発缶内面に接するか接しない程度の間隔で近接していることが好ましい。これによって、蒸発缶の内面とコイル状線材との間にらせん流路状の空間ができる。また、コイル状線材の内側に、らせん状の溝の隙間が形成される。コイル状線材は蒸発缶の中で動かすことができることが好ましい。コイル状線材を蒸発缶の中で動かすと、コイル状線材によって蒸発缶内面が擦られ乾固物やスケールをはぎ落すことができる。さらに、コイル状線材を蒸発缶から取り出すことができることが好ましい。
The coiled wire 3 is installed in the evaporator 2. In the falling liquid film evaporator shown in FIG. 1, the coiled wire 3 is installed over the entire range from the top to the bottom of the evaporator 2, but is not limited thereto. For example, it can be installed in a range only on the bottom side of the evaporator and can be installed in a range only on the top side. When the coiled wire is installed in the evaporator, it is preferable that the coiled wire is close to the evaporator inner surface at an interval of contact or not. Thus, a spiral channel-like space is formed between the inner surface of the evaporator and the coiled wire. Further, a spiral groove gap is formed inside the coiled wire. The coiled wire is preferably movable in the evaporator. When the coiled wire is moved in the evaporator, the inner surface of the evaporator is rubbed by the coiled wire, and dried solids and scales can be peeled off. Furthermore, it is preferable that the coiled wire can be taken out from the evaporator.
（加熱手段）
図１に示す加熱手段４は熱媒ジャケットである。本発明を構成する加熱手段は、熱媒ジャケットに限定されず、外部加熱方式の加熱手段、内部加熱方式の加熱手段であってもよい。外部加熱方式としては、図１に示すような熱媒ジャケットを設置する方法や、電熱線を蒸発缶外面に設置する方法等が挙げられる。内部加熱方式としては、コイル状線材（コイル状に巻かれた管）に熱媒を流す方法、電熱線を蒸発缶内に設置する方法、コイル状線材自体を電熱線とする方法、蒸発缶内に熱源を設置する方法等が挙げられる。中でも、蒸発効率、組み立ての簡便さ、および蒸発器内に堆積する乾固物やスケールの除去の容易さの点で、外部加熱方式の加熱手段が好ましく、熱媒ジャケットが特に好ましい。外部加熱方式の加熱手段は、蒸発缶の外面全範囲に設置してもよいし、一部範囲に設置してもよい。 (Heating means)
The heating means 4 shown in FIG. 1 is a heat medium jacket. The heating means constituting the present invention is not limited to the heat medium jacket, and may be an external heating type heating means or an internal heating type heating means. Examples of the external heating method include a method of installing a heat medium jacket as shown in FIG. 1 and a method of installing a heating wire on the outer surface of the evaporator. As an internal heating method, a method of flowing a heating medium through a coiled wire (a tube wound in a coil shape), a method of installing a heating wire in an evaporator, a method of using a coiled wire itself as a heating wire, And a method of installing a heat source. Among these, from the viewpoint of evaporation efficiency, ease of assembly, and ease of removing dried solids and scales accumulated in the evaporator, an external heating type heating means is preferable, and a heat medium jacket is particularly preferable. The heating means of the external heating method may be installed in the entire outer surface range of the evaporator or in a partial range.
図１に示す加熱手段４は熱媒ジャケットである。本発明を構成する加熱手段は、熱媒ジャケットに限定されず、外部加熱方式の加熱手段、内部加熱方式の加熱手段であってもよい。外部加熱方式としては、図１に示すような熱媒ジャケットを設置する方法や、電熱線を蒸発缶外面に設置する方法等が挙げられる。内部加熱方式としては、コイル状線材（コイル状に巻かれた管）に熱媒を流す方法、電熱線を蒸発缶内に設置する方法、コイル状線材自体を電熱線とする方法、蒸発缶内に熱源を設置する方法等が挙げられる。中でも、蒸発効率、組み立ての簡便さ、および蒸発器内に堆積する乾固物やスケールの除去の容易さの点で、外部加熱方式の加熱手段が好ましく、熱媒ジャケットが特に好ましい。外部加熱方式の加熱手段は、蒸発缶の外面全範囲に設置してもよいし、一部範囲に設置してもよい。 (Heating means)
The heating means 4 shown in FIG. 1 is a heat medium jacket. The heating means constituting the present invention is not limited to the heat medium jacket, and may be an external heating type heating means or an internal heating type heating means. Examples of the external heating method include a method of installing a heat medium jacket as shown in FIG. 1 and a method of installing a heating wire on the outer surface of the evaporator. As an internal heating method, a method of flowing a heating medium through a coiled wire (a tube wound in a coil shape), a method of installing a heating wire in an evaporator, a method of using a coiled wire itself as a heating wire, And a method of installing a heat source. Among these, from the viewpoint of evaporation efficiency, ease of assembly, and ease of removing dried solids and scales accumulated in the evaporator, an external heating type heating means is preferable, and a heat medium jacket is particularly preferable. The heating means of the external heating method may be installed in the entire outer surface range of the evaporator or in a partial range.
加熱手段による加熱温度は、揮発分が蒸発する温度であれば特に限定されない。ただし、加熱温度が高すぎると乾固物やスケールが生じる恐れがあり、低すぎると蒸発が不十分となることがある。また、流下液膜式蒸発器内を減圧して低温加熱で液の蒸発を行うこともできる。
The heating temperature by the heating means is not particularly limited as long as the volatile component evaporates. However, if the heating temperature is too high, dry matter or scale may be generated, and if it is too low, evaporation may be insufficient. Further, the inside of the falling liquid film evaporator can be decompressed and the liquid can be evaporated by low-temperature heating.
本発明の流下液膜式蒸発器では、蒸発缶２の内面及びコイル状線材３の表面を膜状に流下しながら液を蒸発させることができる。液は、蒸発缶の内面とコイル状線材との間に形成されるらせん流路状の空間や、コイル状線材の内側に形成される溝状の空間に沿って流下し、蒸発缶内面全周に広がるので、伝熱面積が増大し、高い蒸発効率を得ることができる。液は、コイル状線材の最上部から供給することもできるし、中間部から供給することもできる。
In the falling liquid film evaporator of the present invention, the liquid can be evaporated while flowing down the inner surface of the evaporator 2 and the surface of the coiled wire 3 into a film shape. The liquid flows down along a spiral channel-shaped space formed between the inner surface of the evaporator and the coiled wire or a groove-shaped space formed inside the coiled wire, and the entire inner surface of the evaporator Therefore, the heat transfer area increases and high evaporation efficiency can be obtained. The liquid can be supplied from the uppermost part of the coiled wire or can be supplied from an intermediate part.
図２に示すシステムにおいては、蒸発処理の対象となる液は、液容器６からポンプ７によって、蒸発缶２の側面の液供給口２－１を経て蒸発缶２内に供給されているが、これに限定されない。例えば、液を蒸発缶２の頂部から供給しても良い。図２に示すシステムには示されていないが、蒸発缶２の手前に予熱器を設置して、供給される液を所望の温度に加熱してもよい。
In the system shown in FIG. 2, the liquid to be evaporated is supplied from the liquid container 6 by the pump 7 into the evaporator 2 through the liquid supply port 2-1 on the side surface of the evaporator 2. It is not limited to this. For example, the liquid may be supplied from the top of the evaporator 2. Although not shown in the system shown in FIG. 2, a preheater may be installed in front of the evaporator 2 to heat the supplied liquid to a desired temperature.
揮発分の排出方法は特に限定されないが、図２に示すシステムにおいては、蒸発缶２の頂部から揮発分が排出される。蒸発缶２の頂部に設置されたミストセパレーター１０においてミストが蒸発缶２に戻される。揮発分は頂部に設置された凝縮器５において液化され揮発分受け容器９に回収される。凝縮器としては、例えば、二重管式、多管式、コイル式、プレート式、プレートフィン式、渦巻式、ジャケット式などの凝縮器を挙げることができる。蒸発缶２の下部から蒸発されなかった液が排出されて濃縮物受け容器８にて回収される。
The method for discharging the volatile matter is not particularly limited, but in the system shown in FIG. 2, the volatile matter is discharged from the top of the evaporator 2. The mist is returned to the evaporator 2 in the mist separator 10 installed at the top of the evaporator 2. Volatile components are liquefied in the condenser 5 installed at the top and collected in the volatile component receiving container 9. Examples of the condenser include a double-pipe type, a multi-pipe type, a coil type, a plate type, a plate fin type, a spiral type, and a jacket type. The liquid not evaporated from the lower portion of the evaporator 2 is discharged and collected in the concentrate receiving container 8.
図３に示すシステムにおいては、蒸発缶２の頂部は封止されている。揮発分および蒸発されなかった液は、蒸発缶２の底部から濃縮物受け容器８に排出される。蒸発されなかった液は、容器８の底にたまる。揮発分はそのまま濃縮物受け容器８の上部から抜き出されて凝縮器５において液化される。液化された揮発分は揮発分受け容器９の底にたまり回収される。
In the system shown in FIG. 3, the top of the evaporator 2 is sealed. Volatiles and liquid that has not been evaporated are discharged from the bottom of the evaporator 2 to the concentrate receiving container 8. The liquid that has not been evaporated accumulates in the bottom of the container 8. Volatile components are extracted from the upper part of the concentrate receiving container 8 as it is and liquefied in the condenser 5. The liquefied volatile matter is collected at the bottom of the volatile matter receiving container 9 and collected.
次に、実施例および比較例を示して、本発明をより具体的に説明する。
Next, the present invention will be described more specifically with reference to examples and comparative examples.
[実施例１]
高さ２７０ｍｍのステンレス鋼製円管（２０Ａ、ＳＵＳ３０４ Ｓｃｈ８０）からなる蒸発缶を用意した。蒸発缶頂部に排気口を設置し、高さ２６０ｍｍの側面に液供給口を設置し、蒸発缶底部に排液口を設置した。排気口にミストセパレーター１０を設置した。蒸発缶の外面に、円筒状の熱媒ジャケット（４０Ａ、ＳＵＳ３０４ＴＰ Ｓｃｈ２０Ｓ、２３０ｍｍ）を蒸発缶底部から高さ２３０ｍｍまでの範囲に亘って設置した。該蒸発缶内にコイル状線材（巻数：６６巻、線径：２ｍｍ、自由長：２３３ｍｍ、巻方向：Ｓ巻、ピッチ：３．５ｍｍ、材質：ＳＵＳ３０４）を挿し込み、蒸発缶底部から高さ２３３ｍｍまでの範囲に亘って設置して、流下液膜式蒸発器を組み立てた。該流下液膜式蒸発器の熱媒ジャケットに、温度１３０℃の水蒸気を流した。液供給口から水を、２９ｍｌ／分、３８ｍｌ／分、および４８ｍｌ／分の流量でそれぞれ供給した。蒸発缶内の圧力を大気圧として蒸発操作を行った。各流量における総括伝熱係数を算出した。結果を図４に示す。当該流下液膜式蒸発器と同じ大きさおよび構造のガラス製モデル装置で水の流れを観察したところ、水は、蒸発缶の内面およびコイル状線材の表面を伝って流下し、内周面全体に広がっていた。 [Example 1]
An evaporator made of a stainless steel circular tube (20A, SUS304 Sch80) having a height of 270 mm was prepared. An exhaust port was installed on the top of the evaporator, a liquid supply port was installed on the side of 260 mm in height, and a drain port was installed on the bottom of the evaporator. Amist separator 10 was installed at the exhaust port. A cylindrical heat medium jacket (40A, SUS304TP Sch20S, 230 mm) was installed on the outer surface of the evaporator over a range from the bottom of the evaporator to 230 mm in height. A coiled wire (number of windings: 66, wire diameter: 2 mm, free length: 233 mm, winding direction: S winding, pitch: 3.5 mm, material: SUS304) is inserted into the evaporator, and the height from the bottom of the evaporator A falling liquid film evaporator was assembled by installing over a range up to 233 mm. Steam at a temperature of 130 ° C. was passed through the heating medium jacket of the falling film evaporator. Water was supplied from the liquid supply port at flow rates of 29 ml / min, 38 ml / min, and 48 ml / min, respectively. Evaporation operation was performed with the pressure in the evaporator at atmospheric pressure. The overall heat transfer coefficient at each flow rate was calculated. The results are shown in FIG. When the flow of water was observed with a glass model device of the same size and structure as the falling film evaporator, the water flowed down along the inner surface of the evaporator and the surface of the coiled wire, and the entire inner peripheral surface It has spread to.
高さ２７０ｍｍのステンレス鋼製円管（２０Ａ、ＳＵＳ３０４ Ｓｃｈ８０）からなる蒸発缶を用意した。蒸発缶頂部に排気口を設置し、高さ２６０ｍｍの側面に液供給口を設置し、蒸発缶底部に排液口を設置した。排気口にミストセパレーター１０を設置した。蒸発缶の外面に、円筒状の熱媒ジャケット（４０Ａ、ＳＵＳ３０４ＴＰ Ｓｃｈ２０Ｓ、２３０ｍｍ）を蒸発缶底部から高さ２３０ｍｍまでの範囲に亘って設置した。該蒸発缶内にコイル状線材（巻数：６６巻、線径：２ｍｍ、自由長：２３３ｍｍ、巻方向：Ｓ巻、ピッチ：３．５ｍｍ、材質：ＳＵＳ３０４）を挿し込み、蒸発缶底部から高さ２３３ｍｍまでの範囲に亘って設置して、流下液膜式蒸発器を組み立てた。該流下液膜式蒸発器の熱媒ジャケットに、温度１３０℃の水蒸気を流した。液供給口から水を、２９ｍｌ／分、３８ｍｌ／分、および４８ｍｌ／分の流量でそれぞれ供給した。蒸発缶内の圧力を大気圧として蒸発操作を行った。各流量における総括伝熱係数を算出した。結果を図４に示す。当該流下液膜式蒸発器と同じ大きさおよび構造のガラス製モデル装置で水の流れを観察したところ、水は、蒸発缶の内面およびコイル状線材の表面を伝って流下し、内周面全体に広がっていた。 [Example 1]
An evaporator made of a stainless steel circular tube (20A, SUS304 Sch80) having a height of 270 mm was prepared. An exhaust port was installed on the top of the evaporator, a liquid supply port was installed on the side of 260 mm in height, and a drain port was installed on the bottom of the evaporator. A
[比較例１]
コイル状線材を蒸発缶内に挿し込まなかった他は実施例１と同じ方法にて流下液膜式蒸発器を組み立てた。該流下液膜式蒸発器の熱媒ジャケットに、温度１３０℃の水蒸気を流した。液供給口から水を、１０ｍｌ／分、２９ｍｌ／分、３６ｍｌ／分および４８ｍｌ／分の流量でそれぞれ供給した。蒸発缶内の圧力を大気圧として蒸発操作を行った。各流量における総括伝熱係数を算出した。結果を図４に示す。当該流下液膜式蒸発器と同じ大きさおよび構造のガラス製モデル装置で水の流れを観察したところ、水は、蒸発缶の内面の一部を細いすじ状の流れで伝って流下していた。 [Comparative Example 1]
A falling liquid film evaporator was assembled in the same manner as in Example 1 except that the coiled wire was not inserted into the evaporator. Steam at a temperature of 130 ° C. was passed through the heating medium jacket of the falling film evaporator. Water was supplied from the liquid supply port at flow rates of 10 ml / min, 29 ml / min, 36 ml / min, and 48 ml / min, respectively. Evaporation operation was performed with the pressure in the evaporator at atmospheric pressure. The overall heat transfer coefficient at each flow rate was calculated. The results are shown in FIG. When the flow of water was observed with a glass model device of the same size and structure as the falling film evaporator, the water was flowing down a part of the inner surface of the evaporator in a thin streak-like flow. .
コイル状線材を蒸発缶内に挿し込まなかった他は実施例１と同じ方法にて流下液膜式蒸発器を組み立てた。該流下液膜式蒸発器の熱媒ジャケットに、温度１３０℃の水蒸気を流した。液供給口から水を、１０ｍｌ／分、２９ｍｌ／分、３６ｍｌ／分および４８ｍｌ／分の流量でそれぞれ供給した。蒸発缶内の圧力を大気圧として蒸発操作を行った。各流量における総括伝熱係数を算出した。結果を図４に示す。当該流下液膜式蒸発器と同じ大きさおよび構造のガラス製モデル装置で水の流れを観察したところ、水は、蒸発缶の内面の一部を細いすじ状の流れで伝って流下していた。 [Comparative Example 1]
A falling liquid film evaporator was assembled in the same manner as in Example 1 except that the coiled wire was not inserted into the evaporator. Steam at a temperature of 130 ° C. was passed through the heating medium jacket of the falling film evaporator. Water was supplied from the liquid supply port at flow rates of 10 ml / min, 29 ml / min, 36 ml / min, and 48 ml / min, respectively. Evaporation operation was performed with the pressure in the evaporator at atmospheric pressure. The overall heat transfer coefficient at each flow rate was calculated. The results are shown in FIG. When the flow of water was observed with a glass model device of the same size and structure as the falling film evaporator, the water was flowing down a part of the inner surface of the evaporator in a thin streak-like flow. .
図４に示すように、コイル状線材を配置した本発明の流下液膜式蒸発器は、コイル状線材を配置しない流下液膜式蒸発器に比べ総括伝熱係数が約５倍高く、蒸発効率が良いことがわかる。
As shown in FIG. 4, the falling liquid film evaporator of the present invention in which the coiled wire is arranged has an overall heat transfer coefficient about 5 times higher than that of the falling liquid film evaporator in which the coiled wire is not arranged, and the evaporation efficiency. I understand that is good.
１・・・流下液膜式蒸発器
２・・・蒸発缶
２-１・・・液供給口
３・・・コイル状線材
４・・・加熱手段
５・・・凝縮器
６・・・液容器
７・・・ポンプ
８・・・濃縮物受け容器
９・・・揮発分受け容器
１０・・ミストセパレーター DESCRIPTION OFSYMBOLS 1 ... Falling liquid film type evaporator 2 ... Evaporator 2-1 ... Liquid supply port 3 ... Coiled wire 4 ... Heating means 5 ... Condenser 6 ... Liquid container 7 ... Pump 8 ... Concentrate receiving container 9 ... Volatile content receiving container 10 ... Mist separator
２・・・蒸発缶
２-１・・・液供給口
３・・・コイル状線材
４・・・加熱手段
５・・・凝縮器
６・・・液容器
７・・・ポンプ
８・・・濃縮物受け容器
９・・・揮発分受け容器
１０・・ミストセパレーター DESCRIPTION OF
Claims (7)
- 蒸発缶と、蒸発缶の内径と略等しいコイル外径を有するコイル状線材と、加熱手段とを有し、コイル状線材が蒸発缶内に設置され、蒸発缶の内面及びコイル状線材の表面を膜状に流下させながら液を蒸発させることができる、流下液膜式蒸発器。 An evaporator, a coiled wire having a coil outer diameter substantially equal to the inner diameter of the evaporator, and a heating means. The coiled wire is installed in the evaporator, and the inner surface of the evaporator and the surface of the coiled wire are A falling liquid film evaporator that can evaporate liquid while flowing down into a film.
- 蒸発缶が円柱状内部空間を有する容器からなるものである、請求項１に記載の流下液膜式蒸発器。 The falling film evaporator according to claim 1, wherein the evaporator is a container having a cylindrical inner space.
- コイル状線材が、コイル外径が一定の円筒形状である、請求項２に記載の流下液膜式蒸発器。 The falling film evaporator according to claim 2, wherein the coiled wire has a cylindrical shape with a constant coil outer diameter.
- コイル状線材は、蒸発缶の中で動かすことができる、請求項１に記載の流下液膜式蒸発器。 The falling film type evaporator according to claim 1, wherein the coiled wire can be moved in an evaporator.
- コイル状線材は蒸発缶の頂部から底部に亘る範囲に設置されている、請求項１に記載の流下液膜式蒸発器。 The falling film evaporator according to claim 1, wherein the coiled wire is installed in a range from the top to the bottom of the evaporator.
- 加熱手段が、熱媒ジャケットである、請求項１に記載の流下液膜式蒸発器。 The falling film evaporator according to claim 1, wherein the heating means is a heat medium jacket.
- ミリサイズまたはマイクロサイズの製造システム用である、請求項１に記載の流下液膜式蒸発器。 The falling film evaporator according to claim 1, which is used for a manufacturing system of millimeter size or micro size.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-104733 | 2011-05-09 | ||
| JP2011104733 | 2011-05-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012153523A1 true WO2012153523A1 (en) | 2012-11-15 |
Family
ID=47139011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2012/003019 WO2012153523A1 (en) | 2011-05-09 | 2012-05-09 | Falling liquid film evaporator |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2012153523A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3533509A1 (en) * | 2018-02-26 | 2019-09-04 | Ebara Corporation | Wet abatement system |
| US11634684B2 (en) | 2019-04-09 | 2023-04-25 | Indian Oil Corporation Limited | Integrated process for ethanol separation from fermented broth for low temperature applications |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5888001A (en) * | 1981-11-21 | 1983-05-26 | Jiro Sasaoka | Apparatus for heating downflow membrane and heat generator thereof |
-
2012
- 2012-05-09 WO PCT/JP2012/003019 patent/WO2012153523A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5888001A (en) * | 1981-11-21 | 1983-05-26 | Jiro Sasaoka | Apparatus for heating downflow membrane and heat generator thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3533509A1 (en) * | 2018-02-26 | 2019-09-04 | Ebara Corporation | Wet abatement system |
| US11400406B2 (en) | 2018-02-26 | 2022-08-02 | Ebara Corporation | Wet abatement system |
| US11634684B2 (en) | 2019-04-09 | 2023-04-25 | Indian Oil Corporation Limited | Integrated process for ethanol separation from fermented broth for low temperature applications |
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