JP2008100189A - Reactor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reactor capable of reducing the manufacturing cost of the apparatus and almost completely eliminating the retention of a precipitate precipitated by a reaction of a first reactive liquid with a second reactive liquid. <P>SOLUTION: The reactor (10) which is constituted so that at least two reactive liquids of the first reactive liquid (L1) and the second reactive liquid (L2) are reacted with each other and a product (L3) produced by the reaction is discharged from a discharge part (330), is provided with: a flow passage (33) for circulating the first reactive liquid (L1) toward the discharge part (330); a first reactive liquid supplying means (40) for introducing the first reactive liquid (L1) into the flow passage (33); and a liquid mist jetting means (60) for jetting the second reactive liquid (L2) as a liquid mist (M) of an atomized state toward the first reactive liquid (L1) circulating in the flow passage (33) from above the flow passage (33). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a reactor. More specifically, the present invention relates to a reactor configured to react at least two kinds of introduced liquids and derive a product generated by the reaction.

  As a device invention of this type, the present inventors previously applied for a patent application for Patent Document 1. FIG. 9 is a cross-sectional perspective view of a conventional reactor described in Patent Document 1. In FIG. As shown in FIG. 9, a conventional reactor 90 includes a first slit-shaped channel R1 formed in a slit-like vertically-circular ring shape, and a second slit-shaped channel R2 formed in a slit-like flat annular shape. And a third slit-shaped channel R3 formed in a slit-like substantially inverted truncated cone shape and a fourth slit-shaped channel R4 formed in a slit-like substantially inverted cone shape. The first slit-shaped channel R1, the second slit-shaped channel R2, the third slit-shaped channel R3, and the fourth slit-shaped channel R4 have a common central axis J.

  In the conventional reactor 90, the first reaction liquid L1 is introduced at a predetermined high pressure from the first liquid inlet Q1 into the first introduction port P1 communicating with the first slit-like flow path R1, and then into the second slit-like flow path R2. The second reaction liquid L2 is introduced at a predetermined high pressure from the second liquid inlet Q2 into the second introduction port P2 that communicates, and the first reaction liquid L1 is introduced into the third introduction port P3 that communicates with the third slit-shaped channel R3. A non-participating liquid L30 that does not participate in the reaction between the second liquid to be reacted L2 is introduced from the third liquid inlet Q3 at a predetermined high pressure.

The first to-be-reacted liquid L1 exiting from the first slit-like flow path R1 and the second to-be-reacted liquid L2 exiting from the second slit-like flow path R2 merge and collide with each other in a high-speed flow that is not parallel to each other. Become. Thereby, a turbulent flow is generated in the portion where the collision occurs, and for example, a “laminar flow phenomenon” that can occur when both the reaction liquids L1 and L2 merge in parallel is extremely unlikely. Accordingly, it becomes possible to cause a reaction instantly, and the reaction can proceed in a short reaction time. In addition, by introducing the non-participating liquid L30 from the third slit-like flow path R3 to the fourth slit-like flow path R4 at a predetermined high pressure, the reaction between the first reaction liquid L1 and the second reaction liquid L2 is performed. The generated precipitate is prevented from staying in the junction D.
Japanese Patent Application No. 2006-154299

  In the conventional reactor 90 described above, each of the first slit-shaped channel R1 to the fourth slit-shaped channel R4 is a so-called microchannel having a channel width on the order of several tens to several hundreds of microns. In order to form it, it is necessary to increase the number of parts and to increase the processing accuracy of each part, resulting in an increase in the cost of the apparatus. In addition, in spite of the introduction of the non-participating liquid L30 into the fourth slit-like flow path R4, in practice, the precipitation that is precipitated by the reaction between the first liquid to be reacted (L1) and the second liquid to be reacted (L2). Things sometimes stayed in the junction D.

  The present invention has been made in view of the above-described problems, can reduce the cost of the apparatus, and retains precipitates deposited by the reaction between the first reaction liquid and the second reaction liquid. An object of the present invention is to provide a reactor that can almost completely eliminate the above.

  In order to achieve the above-mentioned object, the reactor (10) according to the present invention is a product generated by reacting at least two kinds of first reaction liquid (L1) and second reaction liquid (L2). The reactor (10) configured to derive the product (L3) from the deriving unit (330), the flow path for allowing the first reaction liquid (L1) to flow toward the deriving unit (330) (33), first reaction liquid supply means (40) for introducing the first reaction liquid (L1) into the flow path (33), and the first reaction liquid flowing through the flow path (33). The liquid mist injection means (60) which injects the 2nd to-be-reacted liquid (L2) toward the liquid (L1) from the upper part of the above-mentioned channel (33) as spray-like liquid mist (M), To do.

  According to the reactor (10) of the present invention, the first reaction liquid (L1) is a thin film flow in the flow path (33), and the second reaction liquid (L2) is a thin film flow. It is sprayed as a liquid mist (M) toward the surface. The liquid mist (M), which is a fine particle body of the second liquid to be reacted (L2), collides with the first liquid to be reacted (L1) in a thin film flow to cause the reaction to proceed. The product (L3) generated by the reaction is derived from the deriving unit (330). That is, unlike the conventional case, a so-called micro-channel having a channel width on the order of several tens to several hundreds of microns is not used. Therefore, it is not necessary to increase the number of parts or increase the processing accuracy of each part, and the cost of the apparatus can be reduced. Further, it is possible to almost completely eliminate the deposits deposited by the reaction between the first reaction liquid (L1) and the second reaction liquid (L2).

  In addition, the code | symbol in the bracket | parenthesis of each means described in the column of the means for solving a claim and a problem shows the correspondence with the specific means as described in embodiment mentioned later.

  According to the reactor of the present invention, the cost of the apparatus can be reduced, and the deposits deposited by the reaction between the first reaction liquid and the second reaction liquid can be almost completely eliminated. .

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a partial front sectional view of a reactor according to the present invention, FIG. 2 is a plan view of the reactor according to the present invention, FIG. 3 is a view taken along the line I-I in FIG. B) is a partial front sectional view and a plan view of the upper cover, FIG. 5 is a partial front sectional view of the spacer, and FIGS. 6A and 6B are partial front sectional views of the lower cover. 7A and 7B are a partial front sectional view and a plan view of the mist injection nozzle fixing portion, respectively.

  As shown in FIGS. 1 and 2, the reactor 10 according to the present invention includes a chamber 20, a first reaction solution supply unit 40, and a second reaction solution supply unit 60.

  The chamber 20 includes an upper cover 1, a spacer 2, a lower cover 3, an O-ring 4a, an O-ring 4b, and a first bolt 5a.

  As shown in FIG. 4, the upper cover 1 is a substantially dish-like body having a circular shape centered on the axis J <b> 1, and includes a first bolt insertion hole 11, a second bolt fastening hole 12, and a mist injection nozzle fixing hole. 13 and an exhaust joint fastening hole 14. The upper cover 1 is made of a metal such as iron, aluminum, stainless steel, titanium, or brass.

  The first bolt insertion holes 11 in the upper cover 1 are through holes that are drilled in the direction of the axis J1 at six equally spaced locations on the same circumference of the substantially dish-shaped body. The second bolt fastening hole 12 is a bottomed female screw hole that is drilled in the direction of the axis J1 at two equally spaced locations in the substantially dish-like body on the radially inner side of the first bolt insertion hole 11. The mist injection nozzle fixing hole 13 is a through hole that is formed in a step shape in the direction of the axis J1 in the central portion of the substantially dish-shaped body. The exhaust joint fastening hole 14 is a through-female screw hole that is formed by being inclined with respect to the direction of the axis J1 on the upper end surface of the substantially dish-like body.

  As shown in FIG. 5, the spacer 2 is a substantially cylindrical body having the same outer diameter as that of the upper cover 1, and includes a first bolt insertion hole 21 and an O-ring groove 22. The first bolt insertion holes 21 are through holes drilled in the direction of the axis J1 at six equidistant positions on the same circumference of the substantially cylindrical body. The O-ring groove 22 is an annular groove formed on the upper end surface of the substantially cylindrical body radially inward of the first bolt insertion hole 21 and concentrically with the outer diameter of the substantially cylindrical body. The spacer 2 is made of a metal such as iron, aluminum, stainless steel, titanium or brass, or a synthetic resin such as acrylic resin or plastic.

  As shown in FIG. 6, the lower cover 3 is a hollow, substantially pan-like body having the same outer diameter as that of the upper cover 1, and is divided into an upper half 3A and a lower half 3B. The inner peripheral surface of the upper half 3A is a columnar side surface portion 32 having a constant cross-sectional area from the top to the bottom. The inner peripheral surface of the lower half part 3B is a conical side surface shape part 33 whose cross-sectional area decreases from the upper part toward the lower part. That is, the conical side surface shape portion 33 is formed on the side surface of the rotating body with the axis J1 as the center, and the cross-sectional area when cut along a plane substantially orthogonal to the axis J1 gradually decreases toward the lower side of the axis J1. It is made into a shape. The spread angle θ of the conical side surface portion 33 is preferably 90 degrees to 160 degrees. The surface of the conical side surface shape portion 33 is subjected to a hydrophilic treatment by plasma treatment, corona discharge treatment or sputtering treatment. The upper half 3A of the lower cover 3 is provided with a first bolt fastening hole 31, a first joint fastening hole 310, a second joint fastening hole 320, and an O-ring groove 34. The lower half 3B of the lower cover 3 is guided to the lower half 3B. An outlet 330 is provided. The lower cover 3 is made of the same material as the upper cover 1.

  The first bolt fastening holes 31 in the lower cover 3 are bottomed female screw holes drilled in the direction of the axis J1 at six equidistant locations on the same circumference of the substantially pan lid-like body. The first joint fastening hole 310 is a through hole that is drilled from the outer peripheral surface of the upper half 3 </ b> A of the substantially pan-lid body toward the inner peripheral surface. The first joint fastening hole 310 is formed with a female screw on the outer peripheral surface side of the upper half 3A, and the inner peripheral surface side is in the form of a fine hole. The second joint fastening hole 320 is a through hole similar to the first joint fastening hole 310. The first joint fastening hole 310 and the second joint fastening hole 320 are drilled at target positions around the axis J1 of the lower cover 3. The outlet port 330 is a through hole formed in the central portion of the conical side surface shape portion 33 in the axis J1 direction. In addition, the outlet 330 has a fine pore shape having a diameter of about 3 mm to 5 mm on the upper side of the conical side surface shape portion 33, and a female screw for fastening the joint is formed on the lower side. The O-ring groove 34 is an annular groove formed on the upper end surface of the substantially pan lid-like body on the radially inner side of the first bolt fastening hole 31.

  The 1st to-be-reacted liquid supply part 40 is provided with the 1st nozzle 41N and the 2nd nozzle 42N which were inserted in the 1st coupling 41 and the 2nd coupling 42, respectively.

  The first nozzle 41N is made of a stainless steel pipe, and the vicinity of the tip thereof is bent into an approximately L shape. The first nozzle 41N is fixed to the lower cover 3 by fastening the first joint 41 to the first joint fastening hole 310. The reason for using stainless steel is that many of the reaction liquids are excellent in corrosion resistance. At this time, the first nozzle 41N is attached sideways so that the outlet of the first nozzle 41N is perpendicular to the radial direction of the lower cover 3. The second nozzle 42N has the same configuration as that of the first nozzle 41N, and is fixed to the lower cover 3 by fastening the second joint 42 to the second joint fastening hole 320 as in the case of the first nozzle 41N. The The outlet of the second nozzle 42N is attached sideways so as to be opposite to the outlet of the first nozzle 41N. That is, the first nozzle 41N and the second nozzle 42N are arranged in the circumferential direction of the flow path 33 (substantially in the circumferential direction of the pan lid-like body) in order to generate a swirling flow of the first reaction liquid L1. In the same direction.

  The 2nd to-be-reacted liquid supply part 60 is provided with the mist injection nozzle fixing | fixed part 61, the mist injection nozzle 70, the O-ring 4c, and the 2nd volt | bolt 5b.

  As shown in FIG. 7, the mist injection nozzle fixing portion 61 is a cap-like body including an opening 62 that has an annular shape in plan view and a U-shape in front view. On the upper surface, two second bolt insertion holes 63 are provided. The mist injection nozzle fixing portion 61 is made of the same material as that of the upper cover 1.

  The mist injection nozzle 70 returns to FIG. 1, a gas-liquid mixing unit 71 that mixes high-pressure gas and high-pressure liquid to form a liquid mist M, and gas introduction that introduces high-pressure gas into the gas-liquid mixing unit 71. This is a two-fluid nozzle that includes a liquid introduction part 73 that introduces a high-pressure liquid into the part 72 and the gas-liquid mixing part 71 and has a flow passage from the gas-liquid mixing part 71 to the jet port 74 inside. And it is comprised so that the spray-like liquid mist M of the 2nd to-be-reacted liquid L2 may be ejected toward the cone side surface shape part 33 of the lower cover 3 from the jet nozzle 74. FIG.

  The mist injection nozzle 70 is fixed to the upper cover 1 as follows. First, the O-ring 4 c is fitted into the stepped portion 15 in the mist injection nozzle fixing hole 13. Next, the mist injection nozzle 70 is seated on the stepped portion 15. Next, the mist injection nozzle fixing portion 61 is placed over the mist injection nozzle 70. At this time, the second bolt insertion hole 63 in the mist injection nozzle fixing portion 61 and the second bolt fastening hole 12 in the upper cover 1 are matched. Finally, the second bolt 5 b is inserted into the second bolt insertion hole 63 and fixed by being fastened to the second bolt fastening hole 12.

  The upper cover 1, to which the mist injection nozzle 70 is attached, the spacer 2, and the lower cover 3 to which the first nozzle 41N and the second nozzle 42N are attached are assembled as one body as follows. First, the O-ring 4 a is fitted into the O-ring groove 34 of the lower cover 3. Next, the spacer 2 is overlaid on the lower cover 3. At this time, the first bolt fastening hole 31 in the lower cover 3 and the first bolt insertion hole 21 in the spacer 2 are matched. Next, the O-ring 4 b is fitted into the O-ring groove 22 of the spacer 2. Next, the upper cover 1 is overlaid on the spacer 2. At this time, the first bolt insertion hole 21 in the spacer 2 and the first bolt insertion hole 11 in the upper cover 1 are matched. Finally, the first bolt 5a is inserted into the first bolt insertion hole 11 in the upper cover 1 and the first bolt insertion hole 21 in the spacer 2, and is fastened and fixed to the first bolt fastening hole 31 in the lower cover 3. .

  The reactor 10 configured as described above is used by being incorporated in a reaction system 80 as shown in FIG. FIG. 8 is a view showing a reaction system using the reactor according to the present invention. As shown in FIG. 8, the reaction system 80 includes a reactor 10, a first liquid supply tank 81, a second liquid supply tank 82, a compressed gas supply tank 83, an exhaust storage tank 84, and a product storage tank 85.

  The first liquid supply tank 81 stores the first reaction liquid L1 at a predetermined pressure, and is connected to the first nozzle 41N and the second nozzle 42N in the reactor 10 via piping and a flow rate control valve 81V. The second liquid supply tank 82 stores the second reaction liquid L2 at a predetermined pressure, and is connected to the liquid introduction unit 73 in the reactor 10 through a pipe, a joint, and a flow rate control valve 82V. The compressed gas supply tank 83 stores air or nitrogen gas at a predetermined pressure, and is connected to the gas introduction part 72 in the reactor 10 via a pipe, a joint, and a flow rate control valve 83V. The exhaust storage tank 84 is connected to the exhaust joint fastening hole 14 via a pipe, a joint, and an open / close valve 84V. The on-off valve 84V is configured to be opened when the inside of the chamber 20 reaches a predetermined pressure. The product storage tank 85 is connected to the outlet 330 through a pipe and a joint.

  Next, the operation and effect of the reactor 10 together with the operation of the reaction system 80 will be described. From the first liquid supply tank 81, the first reaction liquid L1 is pumped to the first nozzle 41N and the second nozzle 42N via a pipe. Accordingly, the first reaction liquid L1 is ejected from the first nozzle 41N and the second nozzle 42N. The ejection direction of the first reaction liquid L1 is a lateral direction perpendicular to the radial direction of the lower cover for both the first nozzle 41N and the second nozzle 42N. The first reaction liquid L1 ejected from the first nozzle 41N collides with the cylindrical side surface shape portion 32 in the upper half 3A of the lower cover 3 immediately after ejection. After that, the conical side surface portion 33 in the lower half 3B flows spirally along the circumferential direction (see arrow W1 in FIG. 3).

  The first reaction liquid L1 ejected from the second nozzle 42N flows spirally along the circumferential direction in the conical side surface shape portion 33, similarly to the first reaction liquid L1 ejected from the first nozzle 41N (FIG. 3 arrow W2). Thus, the 1st to-be-reacted liquid L1 ejected from the 1st nozzle 41N and the 2nd nozzle 42N turns into a swirl flow. The swirling flow is a thin film flow having a thickness of several tens to several hundreds of microns. Here, since the surface of the conical side surface portion 33 has been subjected to a hydrophilization treatment, the first reaction liquid L1 is not sparsely distributed on the surface of the conical side surface portion 33 due to its surface tension, and the conical side surface shape A thin film with a uniform film thickness is formed over the entire portion 33.

  On the other hand, in the mist injection nozzle 70, high-pressure air or nitrogen gas is pumped from the compressed gas supply tank 83 to the gas introduction unit 72 through a pipe. At the same time, the second reaction liquid L2 is pumped from the second liquid supply tank 82 to the liquid introduction part 73 via the pipe. In the gas-liquid mixing unit 71, high-pressure air or nitrogen gas and the high-pressure second reaction liquid L2 are mixed to form a liquid mist M, that is, a spray-like body of the second reaction liquid L2. And this liquid mist M is ejected from the jet nozzle 74, and the surface of the cone side surface shape part 33 is made to collide with the 1st to-be-reacted liquid L1 currently flowing in the thin film state helically. As for the diameter per drop of the liquid mist M, the Sauter average is preferably about 9 μm to 15 μm. The pressure when introducing air or nitrogen gas is preferably 0.05 to 0.8 MPa, and the flow rate characteristic is preferably 15 to 116 L / min. The spray amount is preferably 5 to 100 mL / min.

  Due to the collision, the reaction between the first liquid to be reacted L1 and the second liquid to be reacted L2 proceeds. Since the conical side surface portion 33 has a downward slope toward the outlet port 330, the first reaction liquid L1 bathed in the liquid mist M flows toward the outlet port 330 while drawing a spiral while the reaction proceeds. To go. A product (including a precipitate) L3 formed by the reaction is led out from the outlet 330.

  Thus, according to the reactor 10 according to the present invention, the first reaction liquid L1 is formed into a thin film flow in the conical side surface portion 33 having a downward gradient, and the second reaction liquid L2 is formed into the thin film shape. It is ejected as a liquid mist M toward the surface of the flow. The liquid mist M, which is a fine particle of the second liquid to be reacted L2, collides with the first liquid to be reacted L1 in a thin film flow, and the reaction proceeds. The product L3 generated by the reaction is derived from the deriving unit 330. That is, unlike the conventional case, a so-called micro-channel having a channel width on the order of several tens to several hundreds of microns is not used. Therefore, it is not necessary to increase the number of parts or increase the processing accuracy of each part, and the cost of the apparatus can be reduced. Further, it is possible to almost completely eliminate the deposits deposited by the reaction between the first reaction liquid L1 and the second reaction liquid L2.

  In addition, since the spacer 2 is detachably provided from the upper cover 1 and the lower cover 3, a plurality of spacers having different heights are prepared so that the one corresponding to the target reaction can be prepared. Selectable and excellent flexibility. In addition, by using the spacer 2 as a transparent synthetic resin, the states of the first reaction liquid L1 and the second reaction liquid L2 in the chamber 20 can be visually recognized. Further, when the pressure inside the chamber 20 exceeds a predetermined pressure, the on-off valve 84V is opened and exhausted, which is excellent in safety.

  As mentioned above, although embodiment of this invention was described, embodiment disclosed above is an illustration to the last, Comprising: The scope of the present invention is not limited to this embodiment. The scope of the present invention is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  For example, in the above-described embodiment, the attachment angles of the first nozzle 41N and the second nozzle 42N are 90 degrees from the radial direction, respectively. However, the present invention is not limited to this form, and the angle is greater than 0 degree and less than 90 degrees. Good. Further, in the above-described embodiment, the total number of the first nozzle 41N and the second nozzle 42N is two at regular intervals in the circumferential direction of the conical side surface shape portion 33. However, the arrangement angle is 120 degrees and the arrangement number is three. Alternatively, the arrangement angle may be 90 degrees and the arrangement number may be four.

  In the above-described embodiment, the mist injection nozzle 70 is a so-called internal mixing type liquid pressurization method in which a high pressure gas and a high pressure liquid are mixed inside the nozzle to form a liquid mist M. It is good also as what is called an external mixing type liquid pressurization system which mixes the gas and high-pressure liquid outside a nozzle, and forms the liquid mist M. FIG. Moreover, it is good also as what is called a suction system which sucks up the 2nd to-be-reacted liquid L2 with the force of a high voltage | pressure gas. Moreover, not only a 2 fluid nozzle but it is good also as a 1 fluid nozzle. In particular, the 1-fluid nozzle can lower the injection pressure as compared with the 2-fluid nozzle, and the spacer 2 can be made thinner (if the spacer 2 is too small, the first fluid nozzle that circulates through the conical side surface shape portion 33). 1 The liquid L1 to be reacted may be splashed off by the high-pressure liquid mist M, which can be prevented), and the apparatus can be made more compact.

It is a partial front sectional view of the reactor according to the present invention. It is a top view of the reactor which concerns on this invention. It is the II arrow directional view of FIG. It is the front fragmentary sectional view and top view of an upper cover. It is a front fragmentary sectional view of a spacer. It is a front fragmentary sectional view of a lower cover, and the II-II arrow directional view of FIG. It is a front fragmentary sectional view and top view of a mist injection nozzle fixed part. It is a figure which shows the reaction system using the reactor which concerns on this invention. It is a cross-sectional perspective view of the conventional reactor.

Explanation of symbols

10 Reactor 20 Chamber 33 Conical side surface shape part (flow path)
40 1st to-be-reacted liquid supply part (1st to-be-reacted liquid supply means)
41N 1st nozzle 42N 2nd nozzle 60 2nd to-be-reacted liquid supply part (liquid mist injection means)
84V open / close valve 330 outlet (outlet)
J1 axis (vertical axis)
L1 First reaction liquid L2 Second reaction liquid L3 Product M Liquid mist

Claims (6)

  A reactor configured to react at least two kinds of first reaction liquid (L1) and second reaction liquid (L2) and derive a product (L3) generated by the reaction from the deriving unit (330). (10) A flow path (33) for flowing the first liquid to be reacted (L1) toward the derivation section (330), and a first liquid to be reacted (L1) in the flow path (33). ) And the first reaction liquid supply means (40) for introducing the second reaction liquid (L2) toward the first reaction liquid (L1) flowing through the flow path (33). (33) A reactor comprising: a liquid mist ejecting means (60) that ejects sprayed liquid mist (M) from above.   The flow path (33) is formed by a side surface of a rotating body centered on the vertical axis (J1) and cut along a plane substantially orthogonal to the vertical axis (J1) as it goes downward of the vertical axis (J1). The reactor according to claim 1, wherein the cross-sectional area is gradually reduced, and the lead-out part (330) is provided at the lowermost part of the flow path (33).   The first to-be-reacted liquid supply means (40) includes a first nozzle (41N) provided such that the jet outlet is in a direction deviated from the radial direction of the flow path (33) by a predetermined angle, A second nozzle (42N) provided so as to be deviated from the radial direction of the flow path (33) by a predetermined angle, and the first nozzle (41N) and the second nozzle (42N) The reactor according to claim 2, wherein at least two or more are provided at equal intervals in the circumferential direction of the flow path (33).   The reactor according to any one of claims 1 to 3, wherein the surface of the flow path (33) is subjected to a hydrophilic treatment.   The reactor in any one of Claims 1-4 provided with the chamber (20) which arranges the said flow path (33) and the said liquid mist injection means (60) hermetically.   The reactor of Claim 5 provided with the opening-and-closing valve (84V) which becomes an open state when the inside of the said chamber (20) becomes a predetermined pressure.

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