CN113336617B - Method for generating myrcene by cracking beta-pinene - Google Patents
Method for generating myrcene by cracking beta-pinene Download PDFInfo
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- CN113336617B CN113336617B CN202110625019.5A CN202110625019A CN113336617B CN 113336617 B CN113336617 B CN 113336617B CN 202110625019 A CN202110625019 A CN 202110625019A CN 113336617 B CN113336617 B CN 113336617B
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Abstract
The invention relates to the technical field of beta-pinene processing and discloses a method for generating myrcene by cracking beta-pinene, which comprises a beta-pinene finished product tank and a cracking furnace, wherein a raw material pump is fixedly arranged on one side of the beta-pinene finished product tank, a feeding pipe is fixedly connected with the output end of the raw material pump, a preheating tank is fixedly connected with one end, away from the raw material pump, of the feeding pipe, a heating tank is sleeved on the outer side of the preheating tank, a heating cavity is formed in the heating tank, and heating resistors are fixedly arranged on the inner side wall of the heating cavity at equal intervals. In the invention, the pressure in the beta-pinene cracking tank is subjected to pressure reduction treatment by carrying out auxiliary heating on the beta-pinene and before cracking the beta-pinene, so that the energy required by the cracking furnace during heating when cracking the beta-pinene is effectively reduced.
Description
Technical Field
The invention relates to the technical field of beta-pinene processing, in particular to a method for generating myrcene by cracking beta-pinene.
Background
Myrcene (Myrcene), also called Myrcene, is an organic matter, has light balsam fragrance, is insoluble in water, is dissolved in organic solvents such as ethanol and can be used for cologne and deodorant. Also is an important raw material for synthesizing terpenes synthetic perfumes such as geraniol, linalool, lyral, citral and the like.
Currently, myrcene is mostly obtained by rectifying turpentine oil, beta-pinene is separated from turpentine oil, then cracking is carried out on the beta-pinene, and myrcene is extracted.
Therefore, we propose a method for cracking beta-pinene to generate myrcene, which solves the above problems.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a method for generating myrcene by cracking beta-pinene.
In order to achieve the purpose, the invention adopts the following technical scheme:
the method for generating myrcene by beta-pinene pyrolysis comprises a beta-pinene finished product tank and a pyrolysis furnace, wherein a raw material pump is fixedly arranged on one side of the beta-pinene finished product tank, a feeding pipe is fixedly connected with the output end of the raw material pump, a preheating tank is fixedly connected with one end of the feeding pipe, which is far away from the raw material pump, a heating tank is sleeved outside the preheating tank, a heating cavity is formed in the heating tank, heating resistors are fixedly arranged on the inner side wall of the heating cavity at equal intervals, one end, which is far away from the inner side wall of the heating cavity, of each heating resistor is abutted against the preheating tank, a feeding pipe is fixedly connected with one end, which is far away from the feeding pipe, of the preheating tank and is inserted into the pyrolysis furnace, the pyrolysis tank is fixedly arranged in the pyrolysis furnace, an ultrasonic atomizer is fixedly arranged on the inner top of the pyrolysis tank, and the feeding pipe is fixedly connected with the ultrasonic atomizer, the top fixed mounting of pyrolysis furnace has vacuum pump and force (forcing) pump, the input of vacuum pump and the output of force (forcing) pump all with pyrolysis tank fixed connection, the bottom fixed mounting of pyrolysis tank one side has the waste pipe, the outside fixed mounting of waste pipe has the flow valve, the top fixed mounting that waste pipe one side was kept away from to the pyrolysis tank has the steam pipe, just the other end and the heating jar fixed connection of steam pipe, one side fixed mounting that the steam pipe was kept away from to the heating jar has finished product pipe, the one end and the myrcene finished product groove fixed connection that the heating jar was kept away from to finished product pipe, the outside cover of finished product pipe is equipped with condensation sleeve, condensation sleeve's top difference fixedly connected with inlet tube and outlet pipe.
Preferably, an electromagnetic valve is fixedly mounted at one end of the outer side of the feeding pipe close to the raw material pump.
Preferably, a check valve is fixedly mounted at one end, far away from the raw material pump, of the outer side of the feeding pipe.
Preferably, a plurality of heat conducting fins are fixedly installed at the bottom of the ultrasonic atomizer at equal intervals.
Preferably, the heat conducting fins and the preheating tank are made of copper, and anti-corrosion layers are arranged on the outer sides of the heat conducting fins and the preheating tank.
The method for producing myrcene by cracking beta-pinene comprises the following steps:
s1, the finished product beta-pinene is located in a beta-pinene finished product tank, the beta-pinene in the beta-pinene finished product tank is pumped out through a raw material pump, and the beta-pinene is conveyed into a preheating tank through a conveying pipe;
s2, starting a heating resistor connected with an external power supply to electrify the heating resistor and generate high temperature, wherein the heating resistor can preheat the beta-pinene of the preheating tank through the shell of the preheating tank because the heating resistor is pressed against the outer side of the preheating tank;
s3, enabling the preheated beta-pinene to flow into the cracking tank through the feeding pipe, and atomizing and spraying the beta-pinene in the feeding pipe into the cracking tank through the ultrasonic atomizer;
s4, simultaneously, connecting the vacuum pump with the commercial power to start, and discharging the air in the cracking tank to make the air pressure in the cracking tank far lower than the outside air pressure, and because the air pressure in the cracking tank is lower, the boiling point of the atomized beta-pinene in the cracking tank is reduced;
s5, starting the cracking furnace to generate high temperature, heating the atomized beta-pinene in the cracking tank, wherein the cracking tank is the atomized beta-pinene, so that the contact surface of the beta-pinene and the external temperature is wide, the temperature of the beta-pinene is rapidly increased, and the beta-pinene is evaporated into steam;
s6, when the cracking furnace is started, because the air pressure in the cracking tank is far lower than the external air pressure, the boiling point of the atomized beta-pinene in the cracking tank is reduced, and the evaporation time of the beta-pinene is shortened;
s7, after the beta-pinene in the cracking tank is evaporated, starting a pressure pump communicated with a mains supply, pressurizing the cracking tank, and discharging steam in the cracking tank into a heating cavity through a steam pipe;
s8, contacting the steam discharged into the heating cavity with the preheating tank, and finishing heat exchange with the preheating tank to ensure that the preheating tank has certain heat to carry out auxiliary heating on unheated beta-pinene in the preheating tank;
s9, the steam after heat exchange enters a finished product pipe, and the steam in the finished product pipe is condensed by circulating water in a condensation sleeve;
s10, condensing the steam to form myrcene, and enabling the myrcene to flow into a myrcene finished product tank through a finished product pipe;
s11, after the myrcene finished product flows into the myrcene finished product tank, the flow valve can be started, and impurities which are not cracked are discharged through the waste pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, air in the cracking tank is discharged through the vacuum pump, so that the inside of the cracking tank is in a negative pressure state, the boiling point of the beta-pinene is reduced, the energy consumption required by heating the beta-pinene in the cracking tank by the cracking furnace is reduced, and the beta-pinene is atomized and sprayed into the cracking tank by the ultrasonic atomizer before entering the cracking tank, so that the heating area of the atomized beta-pinene is increased, and the time required by heating the beta-pinene to the boiling point is reduced.
2. In the invention, a plurality of heating resistors arranged at equal intervals on the inner side wall of the heating cavity are abutted against the preheating tank, and the beta-pinene in the preheating tank and the preheating tank is preheated in an electrifying heating mode, so that when the beta-pinene enters the cracking tank to be cracked, the beta-pinene has certain heat, the beta-pinene in the cracking tank does not need to be heated by the cracking furnace, the energy consumed by the cracking furnace for heating the beta-pinene is reduced, the steam generated after the beta-pinene in the cracking tank is cracked enters the heating cavity through the steam pipe, the beta-pinene in the preheating tank can be heated by the preheating tank in an auxiliary way, the energy consumed by the heating resistors for heating the beta-pinene in the preheating tank is less, and the temperature of the steam generated after the beta-pinene in the cracking tank is in contact with the preheating tank is reduced, the waiting time of the cracked steam of the beta-pinene entering the finished product pipe for condensation is shortened.
Drawings
FIG. 1 is a schematic structural diagram of a beta-pinene finished product tank in the method for producing myrcene by cracking beta-pinene provided by the invention;
FIG. 2 is a front sectional view of a finished beta-pinene tank in the method for producing myrcene by cracking beta-pinene provided by the invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a side cross-sectional view of the heating tank in the method for producing myrcene by cracking beta-pinene provided by the invention.
In the figure: 1. a beta-pinene finished product tank; 2. a feedstock pump; 3. a feed pipe; 4. a preheating tank; 5. a heating tank; 6. a heating cavity; 7. a heating resistor; 8. a cracking furnace; 9. a pyrolysis tank; 10. an ultrasonic atomizer; 11. a vacuum pump; 12. a pressure pump; 13. a waste pipe; 14. a flow valve; 15. a steam pipe; 16. a finished product pipe; 17. a condensing sleeve; 18. a water inlet pipe; 19. a water outlet pipe; 20. an electromagnetic valve; 21. a check valve; 22. a heat conductive sheet; 23. and (4) feeding a pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Referring to fig. 1-4, a method for producing myrcene by beta-pinene pyrolysis comprises a beta-pinene finished product tank 1 and a pyrolysis furnace 8, wherein a raw material pump 2 is fixedly installed on one side of the beta-pinene finished product tank 1, a feeding pipe 3 is fixedly connected with an output end of the raw material pump 2, a preheating tank 4 is fixedly connected with one end of the feeding pipe 3 far away from the raw material pump 2, a heating tank 5 is sleeved on the outer side of the preheating tank 4, a heating cavity 6 is formed in the heating tank 5, heating resistors 7 are fixedly installed on the inner side wall of the heating cavity 6 at equal intervals, one end of each heating resistor 7 far away from the inner side wall of the heating cavity 6 is abutted against the preheating tank 4, a feeding pipe 23 is fixedly connected with one end of the preheating tank 4 far away from the feeding pipe 3, the feeding pipe 23 is inserted in the pyrolysis furnace 8, a pyrolysis tank 9 is fixedly installed in the pyrolysis furnace 8, and an ultrasonic atomizer 10 is fixedly installed on the inner top of the pyrolysis tank 9, inlet pipe 23 and ultrasonic nebulizer 10 fixed connection, the top fixed mounting of pyrolysis furnace 8 has vacuum pump 11 and force (forcing) pump 12, vacuum pump 11's input and force (forcing) pump 12's output all with pyrolysis tank 9 fixed connection, the bottom fixed mounting of pyrolysis tank 9 one side has waste pipe 13, the outside fixed mounting of waste pipe 13 has flow valve 14, top fixed mounting that waste pipe 13 one side was kept away from to pyrolysis tank 9 has steam pipe 15, and the other end and the heating jar 5 fixed connection of steam pipe 15, one side fixed mounting that steam pipe 15 was kept away from to heating jar 5 has finished product pipe 16, one end and the myrcene finished product groove fixed connection that heating jar 5 was kept away from to finished product pipe 16, the outside cover of finished product pipe 16 is equipped with condenser tube 17, condenser tube 17's top is fixedly connected with inlet tube 18 and outlet pipe 19 respectively.
An electromagnetic valve 20 is fixedly installed at one end, close to the raw material pump 2, of the outer side of the feeding pipe 3, and the electromagnetic valve 20 is installed to control the flow of the beta-pinene pumped into the feeding pipe 3 by the raw material pump 2, so that the raw material pump 2 is prevented from continuously conveying the beta-pinene in the beta-pinene finished product tank 1 to the cracking tank 9 through the feeding pipe 3, the preheating tank 4 and the feeding pipe 23, the beta-pinene in the cracking tank 9 is cracked, new beta-pinene enters the cracking tank 9, and the cracking tank 9 is filled with the beta-pinene.
Wherein, the one end fixed mounting that keeps away from raw materials pump 2 in the outside of conveying pipe 3 has check valve 21, through the installation of check valve 21, can prevent the volume increase of beta-pinene when preheating in preheating tank 4 and promote the beta-pinene in the conveying pipe 3 to return to in the beta-pinene finished product jar 1.
Wherein, the equidistant fixed mounting in bottom of ultrasonic atomization ware 10 has a plurality of conducting strips 22, through the installation of conducting strip 22 for conducting strip 22 can be with the high temperature transmission in the pyrolysis furnace 8 to the bottom of pyrolysis tank 9, and carry out the heat transfer with pyrolysis tank 9, in order to promote the heating efficiency of pyrolysis tank 9.
Wherein, the material of conducting strip 22 and preheating tank 4 is copper, and the outside of conducting strip 22 and preheating tank 4 all is provided with the anticorrosive coating, because the material of conducting strip 22 and preheating tank 4 is copper, make the heat conductivity of conducting strip 22 and preheating tank 4 better, and because the outside of conducting strip 22 and preheating tank 4 all has electro-galvanization, make the electro-galvanization layer can play anticorrosive effect to the outside that conducting strip 22 and preheating tank 4 are right, with the life of extension conducting strip 22 and preheating tank 4.
The method for producing myrcene by cracking beta-pinene comprises the following steps:
s1, the finished product beta-pinene is positioned in the beta-pinene finished product tank 1, the beta-pinene in the beta-pinene finished product tank 1 is pumped out through the raw material pump 2, and the beta-pinene is conveyed into the preheating tank 4 through the conveying pipe 3;
s2, starting the heating resistor 7 connected with the external power supply to electrify the heating resistor 7 and generate high temperature, wherein the heating resistor 7 is pressed against the outer side of the preheating tank 4, so that the heating resistor 7 can preheat beta-pinene in the preheating tank 4 through the shell of the preheating tank 4;
s3, enabling the preheated beta-pinene to flow into the cracking tank 9 through the feeding pipe 23, and atomizing and spraying the beta-pinene in the feeding pipe 23 into the cracking tank 9 through the ultrasonic atomizer 10;
s4, simultaneously, connecting the vacuum pump 11 with the commercial power, starting, and discharging the air in the cracking tank 9, so that the air pressure in the cracking tank 9 is far lower than the external air pressure, and the boiling point of the atomized beta-pinene in the cracking tank 9 is reduced due to the lower air pressure in the cracking tank 9;
s5, starting the cracking furnace 8 to generate high temperature, heating the atomized beta-pinene in the cracking tank 9, wherein the cracking tank 9 is the atomized beta-pinene, so that the contact surface of the beta-pinene and the external temperature is wide, the temperature of the beta-pinene can be rapidly increased, and the beta-pinene is evaporated into steam;
s6, when the cracking furnace 8 is started, because the air pressure in the cracking tank 9 is far lower than the external air pressure, the boiling point of the atomized beta-pinene in the cracking tank 9 is reduced, and the evaporation time of the beta-pinene is shortened;
s7, after the beta-pinene in the cracking tank 9 is evaporated, starting a pressure pump 12 communicated with the mains supply, pressurizing the cracking tank 9, and discharging the steam in the cracking tank 9 into the heating cavity 6 through a steam pipe 15;
s8, the steam discharged into the heating cavity 6 contacts the preheating tank 4 and exchanges heat with the preheating tank 4, so that the preheating tank 4 has certain heat to assist in heating unheated beta-pinene in the preheating tank 4;
s9, the steam after heat exchange enters the finished product pipe 16, and the steam in the finished product pipe 16 is condensed by circulating water in the condensation sleeve 17;
s10, condensing the steam to form myrcene, and enabling the myrcene to flow into a myrcene finished product tank through a finished product pipe 16;
s11, after the myrcene finished product flows into the myrcene finished product tank, the flow valve 14 can be started, and impurities which are not cracked are discharged through the waste pipe 13.
The working principle is as follows: in the invention, beta-pinene in a beta-pinene finished product tank 1 is pumped out by a raw material pump 2, the beta-pinene is conveyed into a preheating tank 4 by a feeding pipe 3, the beta-pinene in the preheating tank 4 is preheated by a heating resistor 7 which is propped against the preheating tank 4 in a mode of heating the preheating tank 4, the preheated beta-pinene can flow into a cracking tank 9 through a feeding pipe 23, the beta-pinene is atomized and sprayed into the cracking tank 9 by an ultrasonic atomizer 10, a vacuum pump 11 is started to discharge air in the cracking tank 9, so that the air pressure in the cracking tank 9 is reduced, the boiling point of the beta-pinene in the cracking tank 9 is reduced due to the reduction of the air pressure in the cracking tank 9, then the cracking furnace 8 is started and heats the cracking tank 9, the cracking furnace 8 is used for heating the cracking tank 9 due to the reduction of the boiling point of the beta-pinene in the cracking tank 9, the time for boiling and gasifying the beta-pinene in the cracking tank 9 is shortened, and because the beta-pinene in the cracking tank 9 is atomized by the ultrasonic atomizer 10, the contact area of the beta-pinene in the cracking tank 9 and the air is increased, the evaporation time of the atomized beta-pinene is reduced, after the beta-pinene in the cracking tank 9 is completely evaporated, the pressure pump 12 is started, and the pressure in the cracking tank 9 is increased, the steam in the cracking tank 9 is discharged into the heating cavity 6 through the steam pipe 15, the steam discharged into the heating cavity 6 is contacted with the preheating tank 4 and exchanges heat with the preheating tank 4, preheating beta-pinene in the preheating tank 4 to enter the cracking tank 9, discharging the steam after heat exchange into a finished product pipe 16, and the water is condensed by circulating water in a condensation sleeve 17, and after the condensation is finished, the water is cracked into myrcene which flows into a myrcene finished product tank through a finished product pipe 16.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The method for generating myrcene by beta-pinene pyrolysis comprises a beta-pinene finished product tank (1) and a pyrolysis furnace (8), and is characterized in that a raw material pump (2) is fixedly installed on one side of the beta-pinene finished product tank (1), a feeding pipe (3) is fixedly connected with the output end of the raw material pump (2), a preheating tank (4) is fixedly connected with one end, away from the raw material pump (2), of the feeding pipe (3), a heating tank (5) is sleeved on the outer side of the preheating tank (4), a heating cavity (6) is formed in the heating tank (5), heating resistors (7) are fixedly installed on the inner side wall of the heating cavity (6) at equal intervals, one end, away from the inner side wall of the heating cavity (6), of each heating resistor (7) is abutted against the preheating tank (4), and one end, away from the feeding pipe (3), of the preheating tank (4) is fixedly connected with a feeding pipe (23), the feeding pipe (23) is inserted into the cracking furnace (8), the cracking furnace (8) is internally and fixedly provided with a cracking tank (9), the inner top of the cracking tank (9) is fixedly provided with an ultrasonic atomizer (10), the feeding pipe (23) is fixedly connected with the ultrasonic atomizer (10), the top of the cracking furnace (8) is fixedly provided with a vacuum pump (11) and a pressure pump (12), the input end of the vacuum pump (11) and the output end of the pressure pump (12) are both fixedly connected with the cracking tank (9), the bottom of one side of the cracking tank (9) is fixedly provided with a waste pipe (13), the outer side of the waste pipe (13) is fixedly provided with a flow valve (14), the top of one side of the cracking tank (9) far away from the waste pipe (13) is fixedly provided with a steam pipe (15), and the other end of the steam pipe (15) is fixedly connected with the heating tank (5), one side fixed mounting that steam pipe (15) were kept away from in heating jar (5) has finished product pipe (16), the one end and the myrcene finished product groove fixed connection of heating jar (5) are kept away from in finished product pipe (16), the outside cover of finished product pipe (16) is equipped with condensation sleeve pipe (17), the top of condensation sleeve pipe (17) is fixedly connected with inlet tube (18) and outlet pipe (19) respectively, and above-mentioned method includes following flow:
s1, the finished product beta-pinene is positioned in the beta-pinene finished product tank (1), the beta-pinene in the beta-pinene finished product tank (1) is pumped out through the raw material pump (2), and the beta-pinene is conveyed into the preheating tank (4) through the feeding pipe (3);
s2, starting a heating resistor (7) connected with an external power supply, electrifying the heating resistor (7) and generating high temperature, wherein the heating resistor (7) is abutted against the outer side of the preheating tank (4), so that the heating resistor (7) can preheat beta-pinene of the preheating tank (4) through the shell of the preheating tank (4);
s3, enabling the preheated beta-pinene to flow into the cracking tank (9) through the feeding pipe (23), and atomizing and spraying the beta-pinene in the feeding pipe (23) into the cracking tank (9) through the ultrasonic atomizer (10);
s4, simultaneously, connecting a vacuum pump (11) with a mains supply to start, and discharging air in the cracking tank (9), so that the air pressure in the cracking tank (9) is far lower than the external air pressure, and the boiling point of the atomized beta-pinene in the cracking tank (9) is reduced due to the lower air pressure in the cracking tank (9);
s5, starting the cracking furnace (8), generating high temperature, heating the atomized beta-pinene in the cracking tank (9), wherein the cracking tank (9) is the atomized beta-pinene, so that the contact surface of the beta-pinene and the external temperature is wider, the temperature of the beta-pinene can be rapidly increased, and the beta-pinene is evaporated into steam;
s6, when the cracking furnace (8) is started, because the air pressure in the cracking tank (9) is far lower than the external air pressure, the boiling point of the atomized beta-pinene in the cracking tank (9) is reduced, and the evaporation time of the beta-pinene is shortened;
s7, after the beta-pinene in the cracking tank (9) is evaporated, starting a booster pump (12) communicated with the mains supply, boosting the pressure in the cracking tank (9), and discharging the steam in the cracking tank (9) into the heating cavity (6) through a steam pipe (15);
s8, the steam discharged into the heating cavity (6) is contacted with the preheating tank (4) and exchanges heat with the preheating tank (4) so that the preheating tank (4) has certain heat to carry out auxiliary heating on unheated beta-pinene in the preheating tank (4);
s9, the steam after heat exchange enters the finished product pipe (16), and the steam in the finished product pipe (16) is condensed by circulating water in the condensation sleeve (17);
s10, condensing the steam to form myrcene, and enabling the myrcene to flow into a myrcene finished product tank through a finished product pipe (16);
s11, after the myrcene finished product flows into the myrcene finished product tank, the flow valve (14) can be started, and impurities which are not cracked are discharged through the waste pipe (13).
2. The method for producing myrcene by cracking beta-pinene according to claim 1, wherein an electromagnetic valve (20) is fixedly installed at one end of the outer side of the feeding pipe (3) close to the raw material pump (2).
3. The method for producing myrcene by cracking beta-pinene according to claim 1, wherein a check valve (21) is fixedly installed at one end of the outer side of the feeding pipe (3) far away from the raw material pump (2).
4. The method for producing myrcene through decomposition of β -pinene according to claim 1, wherein a plurality of heat-conducting fins (22) are fixedly mounted on the bottom of the ultrasonic atomizer (10) at equal intervals.
5. The method for producing myrcene through pyrolysis of beta-pinene according to claim 4, wherein the heat conducting fins (22) and the preheating tank (4) are made of copper, and the outer sides of the heat conducting fins (22) and the preheating tank (4) are provided with an anticorrosive layer.
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