JP2020157209A - Distillation apparatus - Google Patents

Abstract

To improve separation performance.SOLUTION: A distillation apparatus 100 comprises: a main body 210 that has a distillated gas discharge port 216a, a bottom liquid discharge port 216c and a raw material liquid supply port 212f provided between the distillated gas discharge port and the bottom liquid discharge port, whose bottom surface inclines downward in a vertical direction as going from the distillated gas discharge port side toward the bottom liquid discharge port side or whose bottom surface extends in a horizontal direction; one or a plurality of first ribs 220A and 220B erected from the bottom surface of the main body and extended from the distillated gas discharge port side toward the bottom liquid discharge port side; a heater 136 provided in either or both of the side closer to the bottom liquid discharge port than the ribs and outside of the bottom liquid discharge port; and a cooler 146 cooling distillated gas.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a distillation apparatus.

Distillation equipment is used for distillation of alcoholic beverages, cooking oil, petrochemical products, etc., removal of ammonia, recovery of carbon dioxide, and production of pharmaceuticals. The distillation apparatus is an apparatus that separates a raw material liquid containing a low boiling point component and a high boiling point component into a distillate and a canned liquid.

As such a distillation apparatus, a distillation apparatus provided with a gas-liquid contact flow path and one or a plurality of ribs has been developed (for example, Patent Document 1). The gas-liquid contact flow path of Patent Document 1 is provided with a distillate gas discharge port on one end side, a can distillate discharge port on the other end side, and a bottom surface from the distillate gas discharge port to the can discharge port. Tilt vertically downward toward. Further, the rib of Patent Document 1 is erected from the bottom surface of the gas-liquid contact flow path and extends from the distillate gas discharge port side to the can discharge liquid discharge port side. The distillation apparatus of Patent Document 1 can improve the processing speed while maintaining a predetermined separation performance while downsizing the apparatus.

Japanese Patent No. 6357882

In a distillation apparatus as in Patent Document 1, development of a technique for improving separation performance is desired.

In view of such a problem, the present disclosure aims to provide a distillation apparatus capable of improving separation performance.

In order to solve the above problems, the distillation apparatus according to one aspect of the present disclosure is provided at the distillate gas discharge port, the can distillate discharge port, and between the distillate gas discharge port and the can distillate discharge port. It has a raw material liquid supply port, and the bottom surface is inclined vertically downward from the distillate gas discharge port side toward the can discharge liquid discharge port side, or the bottom surface extends horizontally and from the bottom surface of the main body. One or more ribs that are erected and extend from the distillate gas discharge port side to the can liquid discharge port side, the can liquid discharge port side of the ribs, or the outside of the can liquid discharge port. A heater provided on one or both sides and a cooler for cooling the distillate gas are provided.

Further, the cooler may be provided on either one or both of the distillate gas discharge port side and the distillate gas discharge port outside the rib.

In order to solve the above problems, another distillation apparatus according to one aspect of the present disclosure is provided between a distillate gas discharge port, a can distillate discharge port, and a distillate gas discharge port and a can distillate discharge port. The main body and the main body, which have a provided raw material liquid supply port and whose bottom surface inclines vertically downward from the distillate gas discharge port side toward the can discharge liquid discharge port side, or whose bottom surface extends in the horizontal direction. One or more ribs that are erected from the bottom and extend from the distillate gas discharge port side to the can distillate discharge port side, a heater that heats the can distillate, and the distillate gas discharge port side than the ribs. And a cooler provided on either or both of the outside of the distillate gas discharge port.

Further, at least one of the heater and the cooler may be provided outside the main body.

Further, the distillation apparatus may include a plurality of main bodies.

According to the present disclosure, it is possible to improve the separation performance.

It is a figure explaining the schematic structure of the distillation apparatus. It is an exploded perspective view of a distillation part. It is a figure explaining the relationship between the steam ray velocity of a distillation apparatus and HETP. FIG. 4A is a diagram illustrating a distillation apparatus of a comparative example. FIG. 4B is a diagram showing the vapor velocity in the main body of the distillation apparatus of the comparative example. It is a figure explaining the schematic structure of the distillation apparatus of a modification.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating understanding, and the present disclosure is not limited unless otherwise specified. In the present specification and the drawings, elements having substantially the same function and configuration are designated by the same reference numerals to omit duplicate description. In addition, elements not directly related to the present disclosure are not shown.

[Distillation device 100]
FIG. 1 is a diagram illustrating a schematic configuration of a distillation apparatus 100. In the following figures including FIG. 1 of the present embodiment, the vertically intersecting X-axis (horizontal direction), Y-axis (horizontal direction), and Z-axis (vertical direction) are defined as shown in the figure. In FIG. 1, the flow of liquid is indicated by a solid arrow, and the flow of gas is indicated by a broken line arrow.

The distillation apparatus 100 separates the raw material liquid into a distillate and a canned liquid. The raw material liquid contains at least a low boiling point component and a high boiling point component having a higher boiling point than the low boiling point component. The distillate has a higher concentration of low boiling point components than the raw material liquid. The canned liquid has a higher concentration of high boiling point components than the raw material liquid. The raw material liquid is, for example, cooking oil, a physiologically active substance, or the like.

As shown in FIG. 1, the distillation apparatus 100 includes a raw material supply unit 110, a distillation unit 120, a reboiler 130, and a capacitor 140.

The raw material supply unit 110 supplies the raw material to the distillation unit 120. In the present embodiment, the raw material supply unit 110 includes a raw material storage container 112, pipes 112a and 114a, and a pump 114. The raw material storage container 112 is a container for storing the raw material liquid. The pipe 112a connects the raw material storage container 112 and the pump 114. The pipe 114a connects the pump 114 and the raw material liquid supply port 212f of the distillation unit 120. The suction side of the pump 114 is connected to the raw material storage container 112. The discharge side of the pump 114 is connected to the raw material liquid supply port 212f of the distillation unit 120.

The distillation unit 120 distills the raw material liquid. FIG. 2 is an exploded perspective view of the distillation unit 120. As shown in FIG. 2, the distillation unit 120 includes a main body 210 and ribs 220A and 220B. The distillation unit 120 is made of a metal material such as aluminum or stainless steel.

The main body 210 is a prism-shaped hollow member. The main body 210 includes a bottom portion 212, a top portion 214, and a side portion 216.

The bottom portion 212 is a flat plate-shaped member. The length L of the bottom portion 212 in the Y-axis direction in FIG. 2 is, for example, 300 mm. At both ends and in the center of the bottom portion 212 in the Y-axis direction in FIG. 2, low portions recessed vertically downward are provided.

The lower portion of the bottom portion 212 provided on one end side functions as a distillate storage portion 212a. The lower portion of the bottom portion 212 provided on the other end side functions as a can discharge liquid storage portion 212b. A raw material liquid supply port 212f is provided in the lower portion 212c provided in the center of the bottom portion 212.

A high portion 212d is provided between the distillate storage portion 212a and the low portion 212c. A high portion 212e is provided between the low portion 212c and the canned liquid storage portion 212b.

The rib 220A is a member that is erected from the high portion 212e of the bottom portion 212 and extends from the raw material liquid supply port 212f side to the can discharge liquid storage portion 212b side. The rib 220B is a member that is erected from the high portion 212d of the bottom portion 212 and extends from the distillate storage portion 212a side to the raw material liquid supply port 212f side. A plurality of ribs 220A and 220B (here, 6) are provided. In the present embodiment, the width of the base end 222 (width in the X-axis direction in FIG. 2) of the ribs 220A and 220B is larger than the width of the tip end 224. Further, the tip 224 of the ribs 220A and 220B is separated from the upper portion 214.

The distance between the base ends 222 of the adjacent ribs 220A is, for example, about 1 mm. The distance between the tips 224 of the adjacent ribs 220A is, for example, about 2 mm. The distance between the adjacent ribs 220B is substantially equal to the distance between the adjacent ribs 220A. The heights of the ribs 220A and 220B (height from the base end 222 to the tip end 224, height in the Z-axis direction in FIG. 2) are, for example, about 3 mm. The distance between the tips 224 of the ribs 220A and 220B and the upper portion 214 is, for example, about 100 μm to 10 mm (here, 1 mm).

The side portion 216 is a tubular (square tubular) member. The side portion 216 surrounds the bottom portion 212. The side portion 216 is provided so that the lower surface is flush with the lower surface of the bottom portion 212.

A distillate gas discharge port 216a and a distillate introduction port 216b are provided on one end side of the side portion 216. The distillate introduction port 216b is provided below the distillate gas discharge port 216a. On the other end side of the side portion 216, a can discharge liquid discharge port 216c and a can discharge gas introduction port 216d are provided. The can discharge gas introduction port 216d is provided above the can discharge liquid discharge port 216c.

The upper portion 214 is a flat plate-shaped member. The upper part 214 is provided on the side part 216. Therefore, the space surrounded by the bottom portion 212, the side portion 216, and the top portion 214 becomes a distillation space for distilling the raw material liquid.

Further, in the present embodiment, the main body 210 (at least the bottom 212 and the top 214) is vertically downward from one end side to the other end side (from the distillate gas discharge port 216a side to the can discharge liquid discharge port 216c side) (FIG. 2). It is inclined in the middle Z-axis direction). The inclination angle of the main body 210 is, for example, about 2.5 degrees.

Returning to FIG. 1, the reboiler 130 is provided outside the distillation unit 120 (main body 210). The reboiler 130 includes pipes 132a to 132d, a pump 134, a heater 136, and a flow rate regulating valve 138.

The pipe 132a connects the can discharge outlet 216c and the pump 134. The pipe 132b connects the pump 134 and the heater 136. The suction side of the pump 134 is connected to the can discharge port 216c. The discharge side of the pump 134 is connected to the heater 136.

The heater 136 heats the canned liquid discharged from the canned liquid discharge port 216c to the boiling point or higher of the canned liquid. The heating temperature by the heater 136 is a predetermined temperature equal to or higher than the boiling point of the low boiling point component and lower than the boiling point of the high boiling point component, and is determined based on the composition of the raw material liquid and the desired separation performance. The heater 136 is composed of, for example, a heat exchanger.

The pipe 132c connects the heater 136 and the can-out gas introduction port 216d. The pipe 132d is branched from the pipe 132b. The flow rate adjusting valve 138 is provided in the pipe 132d. The flow rate adjusting valve 138 adjusts the flow rate of the canned liquid passing through the pipe 132d.

The condenser 140 is provided outside the distillation unit 120 (main body 210). The condenser 140 includes pipes 142a to 142d, a pump 144, a cooler 146, and a flow control valve 148.

The pipe 142a connects the distillate gas discharge port 216a and the pump 144. The pipe 142b connects the pump 144 and the cooler 146. The suction side of the pump 144 is connected to the distillate gas discharge port 216a. The discharge side of the pump 144 is connected to the cooler 146.

The cooler 146 cools the distillate gas discharged from the distillate gas discharge port 216a to a temperature lower than the boiling point of the distillate gas. The cooling temperature by the cooler 146 is a predetermined temperature equal to or higher than the boiling point of the low boiling point component and lower than the boiling point of the high boiling point component, and is determined based on the composition of the raw material liquid and the desired separation performance. The cooler 146 is composed of, for example, a heat exchanger.

The pipe 142c connects the cooler 146 and the distillate introduction port 216b. The pipe 142d is branched from the pipe 142c. The flow rate adjusting valve 148 is provided in the pipe 142d. The flow rate adjusting valve 148 adjusts the flow rate of the distillate (condensate) passing through the pipe 142d.

Subsequently, the distillation of the raw material liquid by the distillation apparatus 100 will be described. First, the pump 114 supplies the raw material liquid from the raw material storage container 112 to the raw material liquid supply port 212f of the main body 210 of the distillation unit 120. As described above, the bottom surface (bottom 212) of the main body 210 is inclined vertically downward from the distillate gas discharge port 216a side toward the canned liquid discharge port 216c side. Therefore, the raw material liquid flows in the main body 210 (between the ribs 220A) toward the can discharge liquid discharge port 216c (solid arrow in FIG. 1).

The raw material liquid that has flowed between the ribs 220A of the main body 210 is temporarily stored (retained) in the can discharge liquid storage unit 212b. The raw material liquid stored in the can discharge liquid storage unit 212b is sucked by the pump 134 through the can discharge liquid discharge port 216c and guided to the heater 136. Then, in the heater 136, steam is generated from the raw material liquid. The steam is introduced to the other end side of the main body 210 through the pipe 132c and the can discharge gas introduction port 216d.

Since steam is generated only by the heater 136, the amount of steam on the other end side (canned liquid discharge port 216c side) of the main body 210 is larger than that on the one end side (distillate gas discharge port 216a side). Therefore, a pressure difference is generated between the canned liquid discharge port 216c side of the main body 210 and the distillate gas discharge port 216a side. That is, the pressure on the canned liquid discharge port 216c side is higher than that on the distillate gas discharge port 216a side. Therefore, the vapor introduced into the main body 210 flows in the direction opposite to the flow of the liquid, that is, toward the distillate gas discharge port 216a (raw material liquid supply port 212f) (dashed line arrow in FIG. 1).

Then, the steam that has reached one end side of the main body 210 is sucked by the pump 144 through the distillate gas discharge port 216a and guided to the cooler 146. Then, in the cooler 146, the low boiling point component and the high boiling point component contained in the vapor are condensed to generate a liquid (condensate). The condensate is introduced to one end side of the main body 210 through the pipe 142c and the distillate introduction port 216b.

Then, the condensed liquid flows between the ribs 220B and 220A of the main body 210 toward the can discharge liquid discharge port 216c by its own weight (solid arrow in FIG. 1).

In this way, a vapor layer through which vapor flows and a liquid layer through which liquids (raw material liquid and condensed liquid) flow are formed in the main body 210. Then, gas-liquid contact occurs at the boundary between the vapor layer and the liquid layer, and the inside of the main body 210 is in a gas-liquid equilibrium state. As a result, the low boiling point component and the high boiling point component move between the vapor layer and the liquid layer. That is, the low boiling point component moves to the vapor layer, and the high boiling point component moves to the liquid layer. In this way, a canned liquid having a higher boiling point component than the raw material liquid and a distillate gas having a lower boiling point component than the raw material liquid are generated.

A part of the canned liquid is guided to the heater 136 through the canned liquid discharge port 216c, the pipe 132a, the pump 134, and the pipe 132b. A part of the canned liquid is heated by the heater 136 to become steam, and then introduced into the other end side of the main body 210 through the pipe 132c and the canned gas introduction port 216d. On the other hand, the remaining canned liquid is discharged to the outside through the pipe 132d. The discharged canned liquid is stored in the canned liquid storage container 150.

The distillate gas is guided to the cooler 146 through the distillate gas discharge port 216a, the pipe 142a, the pump 144, and the pipe 142b, and is cooled by the cooler 146 to become a condensate. A part of the condensate (distillate) is introduced to one end side of the main body 210 through the pipe 142c and the distillate introduction port 216b. On the other hand, the remaining condensate is discharged to the outside as distillate through the pipe 142c and the pipe 142d. The discharged distillate is stored in the distillate storage container 152.

In this way, a part of the canned liquid and a part of the distillate are returned to the main body 210, so that reflux is performed in the main body 210. Therefore, the distillation apparatus 100 can improve the separation performance of the low boiling point component and the high boiling point component.

Further, the vapor generated by the reboiler 130 is continuously introduced into the main body 210, and the condensate generated by the condenser 140 is continuously introduced into the main body 210. As a result, the heat of the steam and the cold heat of the condensate are continuously transmitted to the main body 210. Therefore, the main body 210 is formed with a temperature gradient that increases in temperature from one end side to the other end side. In other words, the main body 210 is formed with a temperature gradient that becomes lower in temperature from the other end side toward one end side. Therefore, vapor and condensate are also produced in the distillation apparatus 100. Therefore, the distillation apparatus 100 can improve the separation performance of the low boiling point component and the high boiling point component.

As described above, the distillation apparatus 100 of the present embodiment includes a heater 136 and a cooler 146 outside the main body 210 (ribs 220A and 220B). That is, the distillation apparatus 100 replenishes the vapor into the main body 210 (can discharge liquid storage portion 212b and rib 220A) in which the low boiling point component and the high boiling point component are moved between the steam layer and the liquid layer. Can be done. Similarly, the distillation apparatus 100 can replenish the condensed liquid in the main body 210 (distillate storage portion 212a and rib 220B).

As a result, the distillation apparatus 100 can increase the vapor line velocity over the entire area of the main body 210, and can maintain the HETP (Height Equivalent of one Theoretical Plate) low. The HETP is obtained by dividing the flow path length by the number of theoretical plates, and indicates a length corresponding to one theoretical plate. The theoretical plate number is an index showing the performance of the distillation apparatus. The larger the number of theoretical plates, the higher the separation performance of the distillation apparatus. The smaller the HETP, the higher the separation performance per unit length of the distillation apparatus.

Therefore, the distillation apparatus 100 can efficiently move the low boiling point component and the high boiling point component in the main body 210, and can improve the separation performance of the raw material liquid.

Further, in the distillation apparatus 100 of the present embodiment, the main body 210 is configured so that the raw material liquid and the condensed liquid flow between the ribs 220A or between the ribs 220B. When the width of the flow path through which the liquid flows is large, the surface tension of the liquid increases the difference between the flow velocity of the liquid flowing on the end side of the flow path and the flow velocity of the liquid flowing on the center side of the flow path. Therefore, by setting the width between the ribs 220A and 220B to 2 mm or less, the difference between the flow velocity of the liquid flowing on the end side of the flow path and the flow velocity of the liquid flowing on the center side of the flow path can be reduced. It is possible to make the flow velocity uniform in the flow path.

[simulation result]
Subsequently, the relationship between the vapor velocity of the distillation unit 120 and HETP will be described. FIG. 3 is a diagram illustrating the relationship between the vapor velocity of the distillation unit 120 and HETP. In FIG. 3, the horizontal axis represents the vapor line velocity [m / s]. In FIG. 3, the vertical axis represents HETP [mm]. In the distillation unit 120, an example of HETP corresponding to the linear velocity (steam linear velocity) of the steam in the main body 210 was derived by simulation.

As a result, as shown in FIG. 3, in the distillation unit 120, when the vapor ray velocity was about 0.55 m / s, the HETP was about 250 mm. When the vapor velocity was about 0.6 m / s, the HETP was about 150 mm. When the vapor velocity was about 0.78 m / s, the HETP was about 110 mm. When the vapor velocity was about 0.85 m / s, the HETP was about 140 mm. When the vapor velocity was about 0.90 m / s, the HETP was about 120 mm. When the vapor velocity was about 1.10 m / s, the HETP was about 180 mm.

From the above results, it was confirmed that the HTEP can be kept low in the distillation unit 120 when the vapor velocity is 0.65 m / s or more and 1.00 m / s or less.

FIG. 4 is a diagram for explaining the vapor velocity in the main body 22 of the distillation apparatus 10 of the comparative example. FIG. 4A is a diagram illustrating a distillation apparatus 10 of a comparative example. FIG. 4B is a diagram showing the vapor velocity in the main body 22 of the distillation apparatus 10 of the comparative example. Further, in order to facilitate understanding, the raw material supply unit 110 is omitted in FIG. 4A.

As shown in FIG. 4A, the distillation apparatus 10 of the comparative example includes a raw material supply unit 110, a distillation unit 20, a heater 30, and a cooler 40. The components substantially the same as those of the distillation apparatus 100 are designated by the same reference numerals and the description thereof will be omitted.

The distillation unit 20 includes a main body 22 and ribs 220A and 220B. The main body 22 includes a bottom portion 212, a top portion 214, and a side portion 24. The side portion 24 is a tubular (square tubular) member. The side portion 24 surrounds the bottom portion 212. The side portion 24 is provided so that the lower surface is flush with the lower surface of the bottom portion 212. A distillate discharge port 24a is provided on one end side of the side portion 24. A can discharge liquid discharge port 24b is provided on the other end side of the side portion 24. The distillate produced in the distillation apparatus 10 is discharged to the outside through the distillate discharge port 24a. Further, the canned liquid is discharged to the outside through the canned liquid discharge port 24b.

The heater 30 is provided at a portion (high portion 212e) corresponding to the rib 220A on the bottom portion 212. The cooler 40 is provided at a position corresponding to the rib 220B in the upper part 214.

The vapor velocity in the main body 22 of such a distillation apparatus 10 was derived by simulation. In FIG. 4A, the vapor velocity was derived at each of the 24 measurement points set at equal intervals in the Y-axis direction.

As a result, as shown in FIG. 4 (b), the vapor velocity between the measuring points 3 to 22, that is, the steam ray velocity between the heater 30 and the cooler 40 in the main body 22 of the distillation apparatus 10 is approximately 0.65 m. It became / s or more. On the other hand, it was found that the vapor velocity of the measurement points 1 and 2 and the measurement points 23 and 24 was much lower than 0.65 m / s. Therefore, in the distillation apparatus 10 of the comparative example in which heating and cooling are performed at the portions of the ribs 220A and 220B (inside the ribs 220A and 220B), the distillation line velocity is significantly reduced on the other end side of the rib 220A and the one end side of the rib 220B. It was confirmed that it would be done. The number of theoretical plates of the distillation apparatus 10 of the comparative example was 10.96.

On the other hand, the number of theoretical plates of the distillation apparatus 100 in which the reboiler 130 and the condenser 140 are provided outside the main body 210 is 12.01. That is, it was found that the theoretical plate number of the distillation apparatus 100 was 9.6% larger than the theoretical plate number of the distillation apparatus 10. From this result, it was confirmed that the distillation apparatus 100 can remarkably improve the separation performance of the raw material liquid as compared with the distillation apparatus 10 of the comparative example.

[Modification example]
In the above embodiment, the distillation apparatus 100 including one main body 210 (distillation unit 120) has been described. However, the number of main bodies 210 (distillation unit 120) is not limited.

FIG. 5 is a diagram illustrating a schematic configuration of a distillation apparatus 400 of a modified example. In FIG. 5, the flow of liquid is indicated by a solid arrow, and the flow of gas is indicated by a broken line arrow.

As shown in FIG. 5, the distillation apparatus 400 includes a raw material supply unit 110, a plurality of (here, three) distillation units 120A to 120C, a reboiler 430, and a capacitor 440. The components substantially the same as those of the distillation apparatus 100 are designated by the same reference numerals and the description thereof will be omitted.

In the modified example, the plurality of distillation portions 120A to 120C are laminated in the vertical direction (Z-axis direction in FIG. 5). Further, in the distillation portions 120A to 120C, the raw material liquid supply port 212f is provided on the side portion 216.

The reboiler 430 and the condenser 440 are provided outside the distillation unit 120 in the same manner as the distillation apparatus 100. Further, the reboiler 430 includes pipes 432a to 432f, 132b, 132d, a pump 134, a heater 136, and a flow rate adjusting valve 138.

The pipe 432a connects the can discharge port 216c of the distillation unit 120A and the pump 134. The pipe 432b connects the can discharge port 216c of the distillation unit 120B and the pipe 432a (pump 134). The pipe 432c connects the can discharge port 216c of the distillation unit 120C and the pipe 432a (pump 134).

The pipe 432d connects the heater 136 and the can discharge gas introduction port 216d of the distillation unit 120A. The pipe 432e connects the pipe 432d (heater 136) and the can discharge gas introduction port 216d of the distillation unit 120B. The pipe 432f connects the pipe 432d (heater 136) and the can discharge gas introduction port 216d of the distillation unit 120C.

The condenser 440 includes pipes 442a to 442f, 142b, 142d, a pump 144, a cooler 146, and a flow control valve 148.

The pipe 442a connects the distillate gas discharge port 216a of the distillation unit 120A and the pump 144. The pipe 442b connects the distillate gas discharge port 216a of the distillation unit 120B and the pipe 442a (pump 144). The pipe 442c connects the distillate gas discharge port 216a of the distillation unit 120C and the pipe 442a (pump 144).

The pipe 442d connects the cooler 146 and the distillate introduction port 216b of the distillation unit 120A. The pipe 442e connects the pipe 442d (cooler 146) and the distillate introduction port 216b of the distillation unit 120B. The pipe 442f connects the pipe 442d (cooler 146) and the distillate introduction port 216b of the distillation unit 120C. Further, the pipe 142d is connected to the downstream side of the connection point of the pipe 442e and the pipe 442f in the pipe 442d.

As described above, the distillation apparatus 400 according to the modified example includes a heater 136 and a cooler 146 outside the main bodies 210 (ribs 220A and 220B) of the distillation portions 120A to 120C, similarly to the distillation apparatus 100. As a result, the distillation apparatus 400 can efficiently move the low boiling point component and the high boiling point component in each of the main bodies 210 of the distillation sections 120A to 120C, and can improve the separation performance of the raw material liquid. It becomes.

Further, the distillation apparatus 400 according to the modified example distributes the steam generated by one heater 136 to each of the main bodies 210 of the distillation portions 120A to 120C. Similarly, the distillation apparatus 400 distributes the condensate produced by one cooler 146 to each of the main bodies 210 of the distillation units 120A to 120C. As a result, the distillation apparatus 400 can reduce the cost required for the heater and the cooler as compared with the conventional technique in which the heater and the cooler are provided for each distillation unit 120.

Although the embodiments have been described above with reference to the accompanying drawings, it goes without saying that the present disclosure is not limited to the above embodiments. It is clear to those skilled in the art that various modifications or modifications can be conceived within the scope of the claims, and it is understood that they also naturally belong to the technical scope of the present disclosure. Will be done.

For example, in the above embodiment, the configuration in which the heater 136 and the cooler 146 of the distillation apparatus 100 are provided outside the main body 210 is given as an example. However, at least one of the heater 136 and the cooler 146 may be provided outside the main body 210.

For example, only the heater 136 may be provided outside the main body 210, and the cooler 146 may be provided at a position corresponding to the rib 220B in the upper part 214, similarly to the cooler 40. Even in this case, the number of theoretical plates is 11.58, which is 5.7% larger than the number of theoretical plates of the distillation apparatus 10 of the comparative example.

Further, for example, only the cooler 146 may be provided outside the main body 210, and the heater 136 may be provided at a position corresponding to the rib 220A on the bottom 212, similarly to the heater 30. In this case, the number of theoretical plates is 11.12, which is 1.5% larger than the number of theoretical plates of the distillation apparatus 10 of the comparative example. Further, in this case, the heat medium after being used in the heater can be used to keep the heat of another part of the distillation apparatus (for example, the raw material liquid supply port 212f).

Further, the heater 136 may be provided in the main body 210 as long as it is provided at least on the can discharge liquid discharge port 216c side of the rib 220A. Similarly, the cooler 146 may be provided in the main body 210 as long as it is provided at least on the distillate gas discharge port 216a side of the rib 220B.

Further, the heater 136 may be provided outside the can outlet liquid discharge port 216c. For example, when the canned liquid discharge port 216c is provided on the bottom 212, the heater 136 may be provided on the outer side (opposite side of the rib 220A) of the canned liquid discharge port 216c in the main body 210.

Further, the cooler 146 may be provided outside the distillate gas discharge port 216a. For example, when the distillate gas discharge port 216a is provided on the upper portion 214, the cooler 146 may be provided on the outer side (opposite side to the rib 220B) of the distillate gas discharge port 216a in the main body 210.

Further, the distillation apparatus 100 may include a heater 136 and a cooler 146 in the main body 210 in addition to the reboiler 130 and the condenser 140.

Further, in the above embodiment, the case where the heater 136 is composed of a heat exchanger has been described as an example. However, the heater 136 may be composed of a Peltier element or an electric heater.

Further, in the above embodiment, the case where the cooler 146 is composed of the heat exchanger has been described as an example. However, the cooler 146 may be composed of a Peltier element or a fan.

Further, in the above embodiment, the bottom portion 212 of the main body 210 (the bottom surface where the ribs 220A and 220B are provided) is inclined vertically downward from the distillate gas discharge port 216a side toward the can discharge liquid discharge port 216c side. explained. However, the bottom 212 (bottom) may extend horizontally.

Further, in the above embodiment, the dimensional relationship and the inclination angle of the main body 210 have been described. However, the main body 210 may be appropriately set based on the ratio of the low boiling point component to the high boiling point component in the raw material liquid, the target separation performance, and the supply flow rate (processing speed) of the raw material liquid by the pump 114.

Further, in the above embodiment, the configuration in which the distillate gas discharge port 216a, the distillate liquid introduction port 216b, the can distillate discharge port 216c, and the can distillate gas introduction port 216d are provided on the side portion 216 is given as an example. However, either or both of the distillate gas discharge port 216a and the can distillate gas introduction port 216d may be provided at the upper part 214. Further, either one or both of the distillate introduction port 216b and the can distillate discharge port 216c may be provided on the bottom 212. Further, the raw material liquid supply port 212f may be provided at the upper part 214 or the side part 216. In any case, the main body 210 includes a distillate gas discharge port 216a, a can distillate discharge port 216c, and a raw material liquid supply port 212f provided between the distillate gas discharge port 216a and the can distillate discharge port 216c. It suffices to have.

The present disclosure can be used for distillation equipment.

100 Distiller 136 Heater 146 Cooler 210 Main body 212f Raw material liquid supply port 216a Distillate gas discharge port 216b Distillate introduction port 216c Can discharge gas inlet 216d Can discharge gas introduction port 220A Rib 220B Rib 400 Distiller

Claims (5)

It has a distillate gas discharge port, a can distillate discharge port, and a raw material liquid supply port provided between the distillate gas discharge port and the can distillate discharge port, and the bottom surface is the distillate gas discharge port. A main body that inclines vertically downward from the side toward the can discharge outlet side, or whose bottom surface extends in the horizontal direction.
One or a plurality of ribs standing upright from the bottom surface of the main body and extending from the distillate gas discharge port side to the can discharge liquid discharge port side.
A heater provided on one or both of the can outflow outlet side and the outside of the can outflow outlet with respect to the rib.
A cooler that cools the distillate gas,
Distillation device equipped with. The distillation apparatus according to claim 1, wherein the cooler is provided on either one or both of the distillate gas discharge port side and the outside of the distillate gas discharge port with respect to the rib. It has a distillate gas discharge port, a can distillate discharge port, and a raw material liquid supply port provided between the distillate gas discharge port and the can distillate discharge port, and the bottom surface is the distillate gas discharge port. A main body that inclines vertically downward from the side toward the can discharge outlet side, or whose bottom surface extends in the horizontal direction.
One or a plurality of ribs standing upright from the bottom surface of the main body and extending from the distillate gas discharge port side to the can discharge liquid discharge port side.
A heater that heats the canned liquid and
A cooler provided on one or both of the distillate gas discharge port side and the outside of the distillate gas discharge port with respect to the rib.
Distillation device equipped with. The distillation apparatus according to any one of claims 1 to 3, wherein at least one of the heater and the cooler is provided outside the main body. The distillation apparatus according to claim 4, further comprising the plurality of the main bodies.

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