JP2013136048A - High-temperature high-pressure reaction system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system capable of achieving a prescribed chemical reaction by maintaining stable high pressure and high temperature.SOLUTION: A high-temperature high-pressure reaction system is provided with a discharge mechanism 20 for discharging in the atmosphere, a treated fluid reacted in a reactor 2 which receives the fluid to be treated and performs a chemical reaction at high temperature under high pressure. In order to compose the discharge mechanism, at least two sets of a discharge device 30 comprising a pair of shut-off valves 25 and the fluid pressure cylinders 21 and 22 connecting to the respective shut-off valves 25 are provided. Further, there is provided a pressurizing unit 27 for pressing a freely-slidable piston 26 provided to the cylinders 21 and 22 to pressurize the treated fluid-housing space in the cylinders 21 and 22. The pressurizing force by the pressurizing unit 27 is set lower than that of a high-pressure pump P for feeding the fluid to be treated and higher than the reaction set pressure in the reactor 2 at a prescribed temperature. Besides, the reaction system is provided with a mechanism 31 for controlling the discharge of the treated fluid, switching the receiving and discharging shut-off valves 23 and 24 to open and close reversely to each other, and selectively opening and closing the receiving shut-off valve 23.

Description

  The present invention is provided with a high-pressure pump for supplying a fluid to be processed, provided with a heating means, and provided with a reactor for receiving a processed fluid pressurized and supplied by the high-pressure pump for supplying fluid to be processed and performing a chemical reaction in a high-pressure and high-temperature state, The present invention relates to a high-temperature and high-pressure reaction system provided with a discharge mechanism for discharging the processing fluid reacted in the reactor to atmospheric pressure.

  In the conventional high-temperature and high-pressure reaction system, the discharge mechanism is provided with at least two sets of discharge devices each composed of a pair of on-off valves and piston-type fluid pressure cylinders connected to the on-off valves, respectively. One of the pair of on-off valves is formed as a processing fluid receiving on-off valve communicating with the reactor side, and the other is formed as a discharge on-off valve connected to the atmospheric pressure side. In this discharge device, a volume control type discharge device is provided that slides the piston provided in each fluid pressure cylinder to control the volume of the high-pressure processing fluid to reduce the pressure and extract the processing fluid to the atmosphere side. Has been proposed (for example, see Patent Document 1).

JP 2000-312819 A

In the above-described high-temperature and high-pressure reaction system, the processing fluid is forcibly extracted from the reactor side by the sliding operation of the piston to control the volume of the processing fluid, so that the pressure in the reactor decreases when the processing fluid is extracted. This is easy, and there is a concern that the reaction pressure may be lower than the reaction set pressure at a predetermined temperature in the reactor, and a predetermined chemical reaction may not be expected.
In particular, when the reaction set pressure in the reactor is set to the saturated vapor pressure, when the pressure drops below the saturated vapor pressure of the fluid to be treated as the pressure decreases, gas is generated from the fluid to be treated. When the fluid is a slurry containing an organic polymer compound or a fluid containing an inorganic compound, carbide of the organic polymer compound is generated and adhered to the inner surface of the reactor, or crystals of the inorganic compound are deposited. It becomes easy to adhere.
Eventually, it is difficult to manage the reaction environment in the reactor so as to be kept constant at high pressure and high temperature, and there is a possibility that a predetermined chemical reaction cannot be expected.

  Accordingly, an object of the present invention is to eliminate the above-mentioned problems and maintain a stable high pressure and high temperature so that a predetermined chemical reaction can be expected.

  The first characteristic configuration of the present invention includes a high-pressure pump for supplying a fluid to be processed, a heating means, and a chemical reaction in a high-pressure and high-temperature state by receiving the fluid to be processed pressurized by the high-pressure pump for supplying fluid to be processed. A high-temperature and high-pressure reaction system provided with a discharge mechanism for discharging the processing fluid reacted in the reactor into the atmospheric pressure. And at least two sets of discharge devices each including a piston-type fluid pressure cylinder connected in communication with each of the on-off valves, and one of the pair of on-off valves in each of the discharge devices is connected in communication with the reactor It is formed on the on-off valve for receiving fluid, and the other is formed on the on-off valve for discharging connected to the atmospheric pressure side, and the slidable piston provided on the fluid pressure cylinder is pressed to A pressurizing means for pressurizing a processing fluid accommodation space in the fluid pressure cylinder in which the valve closing and the discharge on-off valve communicate with each other is provided, and the pressure applied by the pressurizing means is applied to the fluid supply high-pressure pump. Is set to be smaller than the reaction set pressure at a predetermined temperature in the reactor, and the receiving on-off valve and the discharge on-off valve are switched to open and close, and a plurality of sets A processing fluid discharge control mechanism that selectively opens and closes the receiving on-off valve in the discharge device is provided.

According to the first characteristic configuration of the present invention, the fluid to be treated that has been pressurized and supplied to the reactor by the fluid to be treated-feeding high-pressure pump undergoes a chemical reaction in a high-pressure and high-temperature state in the reactor and is brought into atmospheric pressure by the discharge mechanism. However, in the discharge mechanism, the processing fluid discharge control mechanism can be switched to open and close the receiving on / off valve and the discharging on / off valve, so that the receiving on / off valve is in the open state. Sometimes the discharge on / off valves are closed, and the open / close valves for acceptance in the set of discharge devices are selectively opened / closed. Sometimes, as the fluid to be processed is pressed into the reactor by the high-pressure pump for supplying the fluid to be processed, the processing fluid from the reactor passes through the receiving opening / closing valve while pushing back the piston against the pressing force by the pressurizing means. Fluid pressure cylinder It flows into. When the processing fluid flows into the fluid pressure cylinder, the pressure applied by the pressurizing means is smaller than the pressure applied by the fluid supply high-pressure pump and larger than the reaction set pressure at a predetermined temperature in the reactor. Since it is set, the high-temperature and high-pressure reaction of the fluid to be treated in the reactor is well maintained.
The receiving on / off valve that was opened by the processing fluid discharge control mechanism after the fluid pressure cylinder is filled with the processing fluid is closed, and at the same time, the receiving on / off valve in the other discharge device is switched to the open state. In the same manner as described above, the processing fluid from the reactor flows into the fluid pressure cylinder through the open valve for receiving the valve.
On the other hand, in a discharge device having a receiving on / off valve that has been switched to a closed state, the piston that is pressed by the pressurizing means is fluid pressure through the discharge on / off valve in order to open the discharge on / off valve. Push the processing fluid in the cylinder to the atmospheric pressure side.
In this way, the processing fluid can be obtained while stably maintaining the chemical reaction in the reactor.

  The second characteristic configuration of the present invention is that the reaction set pressure is set to be equal to or higher than a saturated vapor pressure.

According to the second characteristic configuration of the present invention, the chemical reaction in the reactor is a saturated vapor pressure or a subcritical reaction or a supercritical reaction higher than the saturated vapor pressure.
For example, as in the conventional apparatus, when the pressure becomes lower than the saturated vapor pressure of the fluid to be treated as the pressure decreases, gas is generated from the fluid to be treated, and in particular, the fluid to be treated is a slurry containing an organic polymer compound. In some cases, or when it is a fluid containing an inorganic compound, the concern that the carbide of the organic polymer compound is generated and adhered to the inner surface of the reactor or that the crystal of the inorganic compound is easily deposited and reduced is reduced. The heat exchange with the heating means in the reactor is well maintained, and the reaction efficiency is improved.

  According to a third characteristic configuration of the present invention, a plurality of the reactors are provided in order from the upstream side to form a first reactor, a second reactor, and a third reactor, which are connected in series, and the first reaction Steam is circulated as a heating medium in the first heat source supply section as the heating means for the reactor, and heat medium oil is circulated as the heating medium in the second heat source supply section as the heating means for the second reactor, An electric heater is provided in the third heat source supply section as the heating means for the third reactor.

According to the third characteristic configuration of the present invention, a plurality of the reactors are provided in order from the upstream side to form a first reactor, a second reactor, and a third reactor, which are connected in series, Steam is circulated as a heating medium in the first heat source supply section as the heating means for the one reactor, and heat medium oil is circulated as the heating medium in the second heat source supply section as the heating means for the second reactor. By providing an electric heater in the third heat source supply unit as the heating means for the third reactor, the first reactor in the low temperature region can generate a large amount of heat as latent heat by heating with steam. It can be efficiently supplied to the fluid to be treated. Furthermore, for heating in a higher temperature range, the temperature of the fluid to be treated can be safely increased without increasing the pressure of the heat medium by the heat medium oil rather than the steam in the second reactor. Further, in the third reactor, the chemical reaction can be continued while keeping the heated fluid to be treated at a stable temperature with an electric heater.
Therefore, a more stable and reliable pressure heating reaction can be realized.

  According to a fourth characteristic configuration of the present invention, the reactor in which the reaction space is formed is formed from a pressure-resistant cylindrical body, the cylindrical body is formed of a heat conductive peripheral wall material, and the cylindrical shape The heating means is provided outside the body, and the rotary blade device is provided inside the cylindrical body.

According to the 4th characteristic structure of this invention, when a to-be-processed fluid flows into the reaction space of the reactor which consists of a cylindrical body from a to-be-processed fluid inflow part, the heat-conductive surrounding wall material which forms the said cylindrical body The thermal energy is received from the heating means through the chemical reaction in the reaction space in a pressurized state. At that time, for example, when the fluid to be treated is a slurry, the flow inside the cylindrical body becomes a laminar flow because of high viscosity. By stirring, the temperature difference between the heat transfer wall surface and the central portion is eliminated, and the heat transfer efficiency is improved. Further, even if carbide is generated by heating and adheres to the inner surface of the cylindrical body, or even if crystal precipitates of inorganic compounds contained in the object to be processed may adhere to the inner surface of the cylindrical body, Since the deposits can be scraped off by the apparatus, the inner surface of the cylindrical body is always in contact with the fluid to be treated and receives heat energy from the heating means, and the chemical reaction in the heated and pressurized state can be continued stably. It becomes like this.
Accordingly, the heat transfer efficiency can be improved and the reaction can be efficiently performed.

  A fifth characteristic configuration of the present invention is provided with a reactor that includes a heating unit and receives a fluid to be processed that is pressurized and supplied by a fluid supply apparatus to be processed, and causes a chemical reaction in a high-pressure and high-temperature state. A high-temperature and high-pressure reaction system provided with a discharge device for discharging the treated fluid into the atmospheric pressure, wherein the treated fluid supply device is constituted by a non-volumetric pump, and the pressure of the reactor is adjusted to a set value The pressure adjusting mechanism is provided, and the discharge device is constituted by a positive displacement pump.

According to the fifth characteristic configuration of the present invention, the to-be-processed fluid supply device that pressurizes and supplies the to-be-processed fluid to the reactor has less biting of dust and solids that cause wear compared to the positive displacement pump. The system is composed of an inexpensive non-displacement pump with few parts and a low number of parts, and by providing a pressure regulation mechanism that adjusts the pressure of the reactor to a set value, an inexpensive system and inexpensive sludge, etc. The fluid to be treated can be hydrolyzed stably and reasonably.
Moreover, the treatment fluid in which the organic polymer compound contained in the fluid to be treated has been changed to a substance having a smaller molecular structure by the hydrolysis treatment in the reactor is removed from the reactor by the positive displacement pump used in the discharge device. By being taken out, the processing fluid can be discharged while maintaining a stable pressure.
In addition, by using the positive displacement pump on the lower side rather than on the upper side of the reactor, the weak point of being expensive and easy to wear can be reduced.

  A sixth characteristic configuration of the present invention is that the pressure regulating mechanism is constituted by a relief valve connected to an upper end portion of the reactor.

  According to the sixth characteristic configuration of the present invention, by using the relief valve as the pressure adjusting mechanism, a stable reaction can be secured by reducing the pressure fluctuation of the reactor with an inexpensive and simple device.

  A seventh characteristic configuration of the present invention is provided with a reactor that includes a heating unit, receives a fluid to be processed that has been pressurized and supplied by a fluid to be processed supply device, and causes a chemical reaction in a high-pressure and high-temperature state. A high-temperature and high-pressure reaction system provided with a discharge device for discharging the treated fluid into the atmospheric pressure, wherein the treated fluid supply device is constituted by a non-volumetric pump, and the reactor and the treated fluid supply device Are connected to each other via a buffer tank, and the discharge device is constituted by a positive displacement pump.

According to the seventh characteristic configuration of the present invention, the processing fluid supply device that supplies the processing fluid under pressure to the reactor has less biting of dust and solids that cause wear compared to the positive displacement pump. By using a non-displacement pump with few parts and an inexpensive non-volumetric pump, and connecting the reactor and the fluid supply device to be processed through a buffer tank, the system is inexpensive and inexpensive. A fluid to be treated such as sludge can be stably and reasonably hydrolyzed.
Moreover, the treatment fluid in which the organic polymer compound contained in the fluid to be treated has been changed to a substance having a smaller molecular structure by the hydrolysis treatment in the reactor is removed from the reactor by the positive displacement pump used in the discharge device. By being taken out, the processing fluid can be discharged while maintaining a stable pressure.
In addition, by using the positive displacement pump on the lower side rather than on the upper side of the reactor, the weak point of being expensive and easy to wear can be reduced.

  An eighth characteristic configuration of the present invention is that the fluid supply apparatus to be processed is constituted by a turbo pump or a tube pump.

  According to the 8th characteristic structure of this invention, even if it is the slurry in which a solid substance mixes in a to-be-processed fluid with a turbo type pump or a tube pump, it can supply to a reactor at high pressure.

  A ninth characteristic configuration of the present invention is a subcritical process in which the fluid to be treated is a slurry-like fluid containing an organic polymer compound, and a reaction set pressure in the reactor is higher than a saturated vapor pressure of the fluid to be treated. It is in the area set.

  According to the ninth characteristic configuration of the present invention, the organic polymer compound contained in the fluid in the slurry state can be easily hydrolyzed in the reactor set in the subcritical processing region higher than the saturated vapor pressure. Subsequent processing efficiency can be improved.

It is a flowchart of a high temperature / high pressure reaction system. (A) The principal part longitudinal cross-sectional view of a reactor, (b) The principal part right side view of a reactor. (A) Front view of rotary blade device, (b) Plan view of rotary blade, (c) Side view of rotary blade device. It is a principle figure which shows another embodiment of a pressurization means. It is a principle figure which shows another embodiment of a pressurization means. It is a comparison table of the overall heat transfer coefficient according to the difference in heat exchange format. It is a side view of another embodiment of a rotary blade device. It is a flowchart of the high temperature / high pressure reaction system of another embodiment. It is a flowchart of the high temperature / high pressure reaction system of another embodiment.

(First embodiment)
Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, for example, a slurry-like fluid to be treated containing an organic polymer compound such as sludge is taken out from a slurry storage tank 32 provided with a stirrer 33 by a fluid-supply high-pressure pump P and added. This is a high-temperature and high-pressure reaction system that hydrolyzes to lower molecular weight organic matter in a high-temperature and high-pressure (for example, 300 ° C. or lower, 10 MPa or lower) atmosphere and solubilizes in water. A heating means 1 is provided, and a reactor 2 is provided for chemically reacting a fluid to be treated heated by the heating means 1 in a pressurized state.
The processing fluid hydrolyzed by the high-temperature and high-pressure reaction system is used, for example, for extracting methane gas that can be used as energy by performing a methane fermentation treatment with methane bacteria.

  As shown in FIGS. 1 and 2, the reactor 2 is formed of a pressure-resistant cylindrical body 3 that forms a reaction space inside, and a treated fluid inflow portion 4 is provided at one end of the cylindrical body 3. In addition, the processing fluid outflow portion 5 is provided at the other end portion, the cylindrical body 3 is formed of a heat conductive peripheral wall material, and an outer cylinder 6 surrounding the cylindrical body 3 is provided outside the cylindrical body 3. The heat source supply unit 7 is provided in the space between the outer cylinder 6 and the cylindrical body 3 to constitute the heating means 1, the rotary blade device 9 is provided inside the cylindrical body 3, and the airtightness of the reactor 2 is increased. It is provided in a maintained state. That is, the solid content adhering to the inner surface of the cylindrical body 3 is quickly removed by the rotary blade device 9 to reduce the viscosity of the highly viscous biomass slurry (sludge) and the efficiency of the inner surface of the cylindrical body 3 and the slurry. Thus, the hydrolytic reaction in a high-temperature and high-pressure atmosphere can be satisfactorily performed by indirect heating by the heating means 1.

  Note that the overall heat transfer coefficient of the reactor 2 with the rotary blade device 9 is compared with that of a heat exchange type of another type (double pipe type or shell & tube type) in FIG. Indicated. That is, it is considered that the heat exchange type of the present invention is superior in heat transfer efficiency and the result of stirring by the rotary blade 12 appears. As a result, it is considered that the hydrolysis reaction is also performed efficiently.

  As shown in FIGS. 2 and 3, the rotary blade device 9 is provided with a pipe-shaped rotary shaft 10 that is driven and rotated by a motor M (FIG. 2B), and is erected at four locations around the rotary shaft 10. A flat-plate-shaped rotary blade 12 is integrally fixed to the blade mounting pin 11 (FIGS. 3A, 3B, and 3C).

By the generation of the stirring flow toward the center along the cross section of the cylindrical body 3 by the rotary blade device 9, the mixing force can be increased and the frictional resistance difference between the vicinity of the inner surface of the cylindrical body 3 and the center can be reduced. Therefore, the slurry-like fluid to be treated is transferred like a plug flow while the inside of the reactor 2 is stirred. Thereby, the temperature difference between the heat transfer wall surface and the central portion is eliminated, and the heat transfer efficiency is improved.
In addition, at the same time, even if carbide is generated by heating and adheres to the inner surface of the cylindrical body 3 or crystal precipitates of inorganic compounds contained in the object to be processed may adhere to the inner surface of the cylindrical body 3, Since the deposits can be scraped off by the rotary blade 12 of the rotary blade device 9, the fluid to be transferred always comes into contact with the inner surface of the cylindrical body to receive the thermal energy from the heating means, and is heated and pressurized. The chemical reaction in the state can be continued stably.

  As shown in FIGS. 2A and 2B, the rotary shaft 10 is supported by bearings 15 at both ends of the cylindrical body 3, and one end of the rotary shaft 10 is interposed via a mechanical seal 16. The reactor 2 is extended from the end of the reactor 2 while maintaining the airtightness of the reactor 2, and is linked to a motor M as a driving device.

  As shown in FIG. 1, a plurality of the reactors 2 are provided in order from the upstream side to form a first reactor 2A, a second reactor 2B, and a third reactor 2C. A steam supply device 17 for circulating steam as a heating medium is provided in the first heat source supply section 7A for the reactor 2A, and a heat medium oil supply for circulating heat medium oil as a heating medium for the second heat source supply section 7B for the second reactor 2B An apparatus 18 is provided, and an electric heater H is provided in the third heat source supply unit 7C for the third reactor 2C. That is, in the 1st reactor 2A, it heats from normal temperature to about 100-140 ° C with steam, in the 2nd reactor 2B, it is heated to 140 ° C-250 ° C with heat transfer oil, and in the 3rd reactor 2C, It is configured to be kept warm by the electric heater H to maintain the reaction.

  As shown in FIG. 1, a cooler 19 is connected to the processing fluid outflow portion 5 of the third reactor 2C, and a discharge mechanism 20 having a function of adjusting the pressure of the processing liquid is provided downstream of the cooler 19. It is connected so that a highly viscous slurry can be discharged while maintaining the pressure in the reactor 2.

  At least two sets of discharge devices 30 comprising a pair of electromagnetically operated on-off valves 25 and piston-type fluid pressure cylinders 21, 22 connected to each of the on-off valves 25 constitute the discharge mechanism 20. One of the pair of on-off valves 25 in each of the discharge devices 30 is formed as a processing fluid receiving on-off valve 23 that is connected to the reactor 2 and the other is connected to the atmospheric pressure side. A process in the fluid pressure cylinders 21 and 22 in which the receiving on-off valve 23 and the discharge on-off valve 24 communicate with each other by pressing a slidable piston 26 provided on the fluid pressure cylinders 21 and 22. A pressurizing means 27 comprising a hydraulic unit for pressurizing the fluid containing space is provided, and the pressure (P2) applied by the pressurizing means 27 is smaller than the pressure (P1) of the high-pressure pump P to be treated, and the reactor 2 The pressure is set to be larger than the reaction set pressure (PT) at a predetermined temperature (P1> P2> PT), the receiving on-off valve 23 and the discharging on-off valve 24 are switched to open and close, and a plurality of sets A processing fluid discharge control mechanism 31 for selectively opening and closing the receiving on-off valve 23 in the discharge device 30 is provided.

  The reaction set pressure in the reactor 2 is set to the saturated vapor pressure of the fluid to be processed so that subcritical processing can be performed. For this reason, in the reactor 2, the generation of gas from the fluid to be treated is suppressed, so that solid content can be prevented from depositing and adhering to the wall of the cylinder, and the hydrolysis reaction by the subcritical reaction is good. It is supposed to be done.

(Second Embodiment)
In the first embodiment, as the fluid supply high pressure pump P, a positive displacement pump such as a rotary gear pump, screw pump, vane pump, reciprocating piston pump, plunger pump, diaphragm pump, or the like is used. However, instead of this, in the second embodiment, as shown in FIG. 8, a cheaper non-volumetric pump having a small number of parts and less failure is used as the fluid supply device P2 to be processed. And using a heating means 35 for press-fitting high-temperature and high-pressure steam, and receiving a slurry-like fluid to be treated such as sludge that is pressurized and supplied to a set pressure higher than the saturated vapor pressure by the fluid-supplying device P2. A reactor 2 for chemical reaction in a high pressure and high temperature state is provided, and a discharge device 30 for discharging the processing fluid reacted in the reactor 2 to atmospheric pressure is provided to provide a high temperature and high pressure reaction cis. You have configured the beam.
Then, in order to stably maintain a high temperature and high pressure state such as a subcritical state, when the pressure exceeds a predetermined pressure, the internal fluid is discharged and the pressure of the reactor 2 is adjusted to a set value to stabilize the pressure adjustment of a relief valve or the like The mechanism 36 is connected to the upper end of the reactor 2, and the discharge device 30 is configured by a positive displacement pump so that the processing fluid can be discharged while maintaining the pressure of the reactor 2.
Note that a turbo pump or a tube pump can be used as the non-volumetric pump.

(Third embodiment)
As shown in FIG. 9 as the third embodiment, a heating means 35 for supplying high-temperature and high-pressure steam or a heating means for heating from the outside by indirect heating is provided, and higher than the saturated vapor pressure by the fluid supply device P2 to be treated. A reactor 2 that accepts a slurry-like fluid to be treated such as sludge that is pressurized and supplied to a set pressure and chemically reacts in a high-pressure and high-temperature state is provided, and the processing fluid that has reacted in the reactor 2 is discharged to atmospheric pressure. A device 30 is provided, and the fluid supply device P2 to be processed is constituted by a non-volumetric pump, and the reactor 2 and the fluid supply device P2 to be processed are connected to each other via a buffer tank 37, and a discharge device 30 comprising a volumetric pump is provided. Is provided to constitute a high-temperature and high-pressure reaction system.
The buffer tank 37 is partially filled with air, nitrogen gas or the like that is not liquefied at the supply pressure and supply temperature of the fluid supply device P2 to be processed, and a liquid level gauge 38 is provided to provide a gas-liquid interface. It is comprised so that the position of can be confirmed.
In other words, the variable supply pressure of the fluid to be processed by the inexpensive non-volumetric pump with a small number of parts is stabilized by the buffering action by the buffer tank 37, and the volumetric pump is used as the discharge device 30 to It is configured to maintain a critical reaction well.
As the non-volumetric pump, a turbo pump or a tube pump can be used.

[Another embodiment]
Other embodiments will be described below.

<1> The shape of the rotary vane 12 constituting the rotary vane device 9 may be a shape with a bent tip, as well as a flat plate shape, and the mounting angle may be changeable. Alternatively, the rotary shaft 10 may be divided into a plurality of pieces in the axial direction.
<2> The rotary vane 12 may be engaged with the vane mounting pin 11 attached to the rotary shaft 10 so as to be swingable up and down. That is, in this case, when the rotation of the rotating shaft 10 is stopped, a gap is formed between the inner surface of the cylindrical body 3 and the tip of the rotating blade 12, and the tip of the rotating blade 12 rotates as the rotating shaft 10 is driven to rotate. It is configured so as to slidably contact the inner surface of the cylindrical body 3 by adhering to the inner wall surface of the cylindrical body 3 by centrifugal force based on the rotation of the shaft 10 or flow resistance received from the fluid to be processed. The solid content can be scraped off.
<3> The rotary vane 12 is locked to the vane mounting pin 11 attached to the rotary shaft 10 so as to be swingable up and down. Further, as shown in FIG. You may form freely. In this case, when the rotary blade 12 is contracted, the angle of the rotary blade 12 with respect to the pin 11 becomes large, and when the rotary blade 12 is extended, the angle becomes small, and the angle with respect to the inner surface of the cylindrical body 3 is adjusted to generate a stirring flow. It is configured so that the degree can be changed.
<4> The reactor 2 is a single cylindrical body in which the first reactor 2A, the second reactor 2B, and the third reactor 2C are integrated, in addition to a plurality of reactors 2 connected in series. 3 may be formed.
<5> The cylindrical body 3 constituting the reactor 2 may be installed in a posture along the vertical direction instead of being installed in a posture along the horizontal direction.
<6> The cooler 19 is configured by a refrigerant supply unit 29 that supplies the refrigerant from the refrigerant supply device 28 outside the pipe through which the processing fluid is circulated. In addition, a rotary blade device 9 similar to that described above may be provided, and a mechanism for removing solid matter adhering to the inner surface of the pipe simultaneously with stirring may be provided.
<7> The high-temperature and high-pressure reaction system of the present invention can be used even if the fluid to be treated is a liquid-only fluid other than the slurry.
<8> The pressure and reaction temperature in the reactor 2 in the high-temperature and high-pressure reaction system of the present invention are variously changed according to the purpose of the reaction. Depending on the components of the processing fluid to be taken out, methane as an example of post-treatment In addition to the fermentation process, a product used for other processes may be used.
<9> Further, the reaction set pressure at a predetermined temperature in the reactor 2 is lower than the saturated vapor pressure, except for the set pressure higher than the saturated vapor pressure in a state in which a subcritical reaction is caused. It may be set to such a set pressure, or may be set to a pressure capable of supercritical reaction.
<10> The pressurizing means 27 employs a hydraulic unit that pressurizes with a hydraulic pump in this embodiment, but includes a mechanism that pressurizes with the spring 13 shown in FIG. 4 and a dashpot 14 and the spring 13 shown in FIG. A pressing device using a forked model may be employed, and in this case, the rapid fluctuation of the internal pressure of the reactor 2 can be reduced and the piston 26 can be pressed.

  In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry. In addition, it goes without saying that the present invention can be carried out in various modes without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Heating means 2 Reactor 2A 1st reactor 2B 2nd reactor 2C 3rd reactor 3 Cylindrical body 7A 1st heat source supply part 7B 2nd heat source supply part 7C 3rd heat source supply part 9 Rotary blade apparatus 20 Exhaust mechanism 21 Fluid Pressure Cylinder 22 Fluid Pressure Cylinder 23 Receiving Open / Close Valve 24 Discharge Open / Close Valve 25 Open / Close Valve 26 Piston 27 Pressurizing Means 30 Discharge Device 31 Process Fluid Discharge Control Mechanism P Processed Fluid Supply High Pressure Pump H Electric Heater

Claims (9)

A high-pressure pump for supplying fluid to be treated is installed
A heating unit, and a reactor for receiving a fluid to be treated and pressurized by the fluid to be treated high-pressure pump and performing a chemical reaction in a high-pressure and high-temperature state.
A high-temperature and high-pressure reaction system provided with a discharge mechanism for discharging the processing fluid reacted in the reactor into atmospheric pressure,
To configure the discharge mechanism,
At least two sets of discharge devices comprising a pair of on-off valves and piston-type fluid pressure cylinders connected to and connected to each of the on-off valves are provided,
One of the pair of on-off valves in each of the discharge devices is formed as a processing fluid receiving on-off valve that is connected to the reactor, and the other is formed as a discharge on-off valve connected to the atmospheric pressure side. And
Pressurizing means for pressurizing a slidable piston provided in the fluid pressure cylinder to pressurize a processing fluid accommodating space in the fluid pressure cylinder, where the receiving on-off valve and the discharge on-off valve communicate with each other. ,
The pressure applied by the pressurizing means is set to be smaller than the pressure applied by the fluid supply high-pressure pump and larger than the reaction set pressure at a predetermined temperature in the reactor,
Provided is a processing fluid discharge control mechanism for switching the receiving on-off valve and the discharging on-off valve to open and close openly and selectively opening and closing the receiving on-off valves in a plurality of sets of the discharging devices. High temperature and high pressure reaction system.   The high-temperature and high-pressure reaction system according to claim 1, wherein the reaction set pressure is set to be equal to or higher than a saturated vapor pressure. A plurality of the reactors are provided in order from the upstream side to form a first reactor, a second reactor, and a third reactor, and they are connected in series.
Steam is circulated as a heating medium in the first heat source supply unit as the heating means for the first reactor,
Heat medium oil is circulated as a heating medium in a second heat source supply unit as the heating means for the second reactor,
The high-temperature and high-pressure reaction system according to claim 1 or 2, wherein an electric heater is provided in a third heat source supply unit as the heating means for the third reactor. The reactor that forms the reaction space inside is formed from a pressure-resistant cylindrical body,
While forming the cylindrical body with a heat conductive peripheral wall material, providing the heating means on the outside of the cylindrical body,
The high-temperature and high-pressure reaction system according to any one of claims 1 to 3, wherein a rotary blade device is provided inside the cylindrical body. A reactor having a heating means and receiving a fluid to be treated that has been pressurized and supplied by a fluid supply device to be treated and chemically reacting in a high-pressure and high-temperature state;
A high-temperature and high-pressure reaction system provided with a discharge device for discharging the processing fluid reacted in the reactor to atmospheric pressure,
The processing fluid supply device is configured by a non-displacement pump, and a pressure adjusting mechanism for adjusting the pressure of the reactor to a set value is provided.
A high-temperature and high-pressure reaction system in which the discharge device is constituted by a positive displacement pump.   The high-temperature and high-pressure reaction system according to claim 5, wherein the pressure regulating mechanism is constituted by a relief valve connected to an upper end portion of the reactor. A reactor having a heating means and receiving a fluid to be treated that has been pressurized and supplied by a fluid supply device to be treated and chemically reacting in a high-pressure and high-temperature state;
A high-temperature and high-pressure reaction system provided with a discharge device for discharging the processing fluid reacted in the reactor to atmospheric pressure,
The fluid to be treated supply device is constituted by a non-volumetric pump, and the reactor and the fluid to be treated supply device are connected in communication via a buffer tank,
A high-temperature and high-pressure reaction system in which the discharge device is constituted by a positive displacement pump.   The high-temperature and high-pressure reaction system according to any one of claims 5 to 7, wherein the processing target fluid supply device is constituted by a turbo pump or a tube pump. The fluid to be treated is a slurry-like fluid containing an organic polymer compound,
The high-temperature and high-pressure reaction system according to any one of claims 1 to 8, wherein a reaction set pressure in the reactor is set in a subcritical processing region higher than a saturated vapor pressure of a fluid to be processed.

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