CN102031134B

CN102031134B - Method for cracking vegetable oil in oil-gas mixing way based on high-pressure pulse device

Info

Publication number: CN102031134B
Application number: CN201010603687XA
Authority: CN
Inventors: 杨勇; 郑兴华; 张雯; 朱英俊; 赵波; 白璐
Original assignee: Hangzhou Dianzi University
Current assignee: Hangzhou Dianzi University
Priority date: 2010-12-17
Filing date: 2010-12-17
Publication date: 2013-07-17
Anticipated expiration: 2030-12-17
Also published as: CN102031134A

Abstract

The invention discloses a method for cracking vegetable oil in an oil-gas mixing way based on a high-pressure pulse device. In the traditional way, oil is directly cracked in a pulse electrolysis unit, but oil molecules can not be completely cracked, thus the purpose of great improvement on the combustion efficiency of the oil can not be achieved. The method of the invention makes oil and gas completely mix by a mixing device, gas molecules and the oil molecules are mixed to increase the ionization area of the oil molecules, the chains of oil are easier to break, the electrical conductivity of the gas also facilitates the crack capability of a pulse electric field on the chains of carbon, and the chains of oil are continuously cracked, and finally the cracked micro-molecular oil with high combustion efficiency is separated. The invention greatly improves the cracking degree of vegetable oil molecules in the oil-gas mixing way so as to improve the combustion efficiency of the oil and make the oil combust more completely.

Description

A kind of based on the high-voltage pulse device by oil gas hybrid mode cracking vegetables oil method

Technical field

The invention belongs to the cracked oil technical field, be specifically related to a kind of pulsed electric field device that utilizes the mixed solution of vegetables oil and gas is carried out cracking, obtain the method for small molecules oil.

Background technology

The carbochain of vegetables oil (as rapeseed oil, tung oil, plam oil, flax wet goods) is long, and molecule is big, and efficiency of combustion is very low, can carbochain be shortened by the mode of cracking, and oil molecule diminishes, thereby improves the efficiency of combustion of oil.The fragmentation pattern of oil normally at present, oil molecule is under the high-voltage pulse effect of certain frequency, generation ionization is decomposed, be cracked into the small molecules of many short chains, molecular weight diminishes and ionization takes place, and rearranges combination, increases the combination of fuel molecule and oxygen, improve the efficiency of combustion of oil, reduce discharge of harmful gases.But how allowing the cracking more fully under the pulsed electric field effect of vegetables oil carbochain, is a technical barrier.Traditional mode mainly is directly to allow oil cleaved at the pulse electrolysis device, but can not allow oil molecule obtain sufficient cracking like this, thereby can't reach the purpose that improves the efficiency of combustion of oil greatly.

Summary of the invention

Purpose of the present invention is exactly at the abundant difficult problem of cracking of vegetables oil macromole, proposes a kind ofly can improve oil molecule cracking degree methods.

The inventive method is to pass through mixed stirring device, allow oil fully mix with gas, gas molecule mixes with oil molecule has increased the ionizing event of oil molecule area, the oil chain is easy fracture more, the electroconductibility of gas also can promote pulsed electrical field to the splitting action of carbochain, oil chain continuous cracking, the small molecules that the efficiency of combustion that again cracking is obtained at last is high is separating of oil to come out.

To achieve these goals, the inventive method mainly realizes by following steps:

Step (1) constantly feeds gas to the vegetables oil in the whipping appts, and stirring fully mixes oil gas;

Step (2) is delivered to reaction vessel with vegetables oil and gas mixed solution and reacts; Be provided with positive electrode plate and negative electrode plate in the described reaction vessel, be furnished with needle electrode on the positive electrode plate; Needle electrode constantly discharges by the frequency of setting, and the vegetables oil in the oil gas mixed solution is cracked into the branch seed oil in 2C～18C scope under the high-voltage pulse effect.

Behind the flow velocity process reaction vessel of step (3) oil gas mixed solution with setting, gas is discharged from outlet pipe, and oil flows out from outlet conduit, and outlet conduit is communicated to tripping device, and the branch seed oil Buddhist monk who in tripping device cracking is obtained is uncracked separating of oil; Wherein the branch seed oil that obtains of cracking is delivered to oil reservoir, and still uncracked vegetables oil is back in the whipping appts, and jumps to step (1).

Press 1～20/cm of density on the described positive electrode plate ²Arrange needle electrode.

Field intensity between described positive electrode plate and the negative electrode plate is 10kv/cm～500kv/cm, and discharge frequency is 50hz～5khz, and pulsewidth is 5 μ s～30 μ s.

The flow velocity that described oil gas mixed solution is set is 0.1 liter/second～10 liters/second.

Described vegetables oil is one or more in rapeseed oil, tung oil, plam oil, flax wet goods oil crops extraction oil.

The present invention has following beneficial effect with respect to prior art: the present invention adopts vegetables oil as cracked oil and is used for the burning energy, can effectively alleviate the difficult problem of the fuel resource anxiety that current social faces; The mode that the present invention adopts oil gas to mix has improved the cracking degree of vegetables oil molecule greatly, thereby has improved oily efficiency of combustion, makes the more abundant of oil firing, and this has not only saved the energy, has more reduced exhaust gas emission.

Description of drawings

Fig. 1 is the employed apparatus structure synoptic diagram of the inventive method.

Embodiment

Below in conjunction with accompanying drawing the present invention is elaborated.

As shown in Figure 1, equipment used in the present invention mainly comprises high-voltage pulse power source S1 (more than the 100kv), positive and negative electrode plate S3, S2, and positive-negative electrode plate is sealed in the reaction vessel, and needle electrode S4 (presses 1～20/cm of density on the positive electrode plate ²Arrange needle electrode), inlet pipeline S8 (the oil gas mixed solution flows into by S8), outlet pipe S9 is (after the oil gas mixed solution flows through reaction vessel, gas is discharged by this pipeline), outlet conduit S12 (reaction vessel is flowed out by S12 in the cleaved back of oil), oil reservoir S5 (being used for storing the vegetables oil for the treatment of cracking), agitator S6 (places oil reservoir in order to ceaselessly to stir the oil gas mixed solution, oil gas is fully mixed), gas tank S13 (is used for providing the gas that mixes with oil, refer to air), bubbler S14 (be used for charging into pressurized air to oil reservoir S5, gas pressure intensity is 2～4 normal atmosphere), pump S7 (reactive force of pump constantly is transported to the oil gas mixed solution in the reaction vessel), separator S11 (the branch seed oil that obtains for separating of cracking reaches not cleaved as yet vegetables oil), oil reservoir S10 (being used for storing the branch seed oil that cracking obtains).

The connection situation of each equipment is, oil reservoir S5 is connected with pump S7, and gas tank S13 is connected with bubbler S14, and bubbler S14 gos deep into oil reservoir from oil reservoir S5 bottom, realizes inflation in the oil; Agitator S6 inserts oil reservoir, and pump S7 is connected with inlet pipeline S8; Outlet pipe S9 all is connected with reaction vessel with flowline S12, and flowline S12 also is connected with separator S11; Separator S11 is connected with oil reservoir S10, and is connected with oil reservoir S5.

Embodiment 1

At first the rapeseed oil of 1L is inserted among the oil reservoir S5, and the interior ventilation from oil reservoir S5 bottom to oil by gas tank S13 and bubbler S14, the gas pressure intensity that feeds in the oil reservoir S5 is 2 normal atmosphere, start agitator S6, begin to stir oil gas, about 2～3 minutes time, oil gas namely fully mixes; Then, ejector priming S7 stirs sufficient gas-oil mixture under the reactive force of pump, is delivered in the reaction vessel by inlet pipeline S8, and oil gas mixed solution flow velocity is 0.1 liter/second; Press 1/cm of density on the positive electrode plate ²Arrange needle electrode, the field intensity between positive electrode plate and the negative electrode plate is 10kv/cm, and discharge frequency is 50hz, and pulsewidth is 5 μ s; Start high-voltage power supply S1, the pulse power begins discharge, the oil gas mixed solution reaction vessel of flowing through, and oily chain is constantly punctured cracking; The oil chain constantly is cracked into the small molecules in 2C～18C scope, the reaction vessel of at every turn flowing through, and oily chain cracking degree reaches 35%～40%; After the pulse electric field device cracking, the oil gas mixed solution flows out reaction vessel with 0.1 liter/second flow velocity, and gas is discharged through outlet pipe S9, and the vegetables oil after the cracking flows out through outlet conduit S12, and flows into separator S11; The molecule that separator S11 obtains cracking is separating of oil to come out and is delivered to oil reservoir S10, and not cleaved macromole oil then returns among the oil reservoir S5 by pipe-line transportation, continues to be transported to reaction vessel and carries out cracking.Like this, the oil gas mixed solution flows in system circularly, and the cracking constantly of vegetables oil oil chain through 5 minutes action time, is stopped power supply, and the branch seed oil that cracking is separated can reach oil overall 60%～90%.

Embodiment 2

At first the tung oil of 5L is inserted among the oil reservoir S5, and the interior ventilation from oil reservoir S5 bottom to oil by gas tank S13 and bubbler S14, the gas pressure intensity that feeds in the oil reservoir S5 is 3 normal atmosphere, start agitator S6, begin to stir oil gas, about 2～3 minutes time, oil gas namely fully mixes; Then, ejector priming S7 stirs sufficient oil gas mixed solution under the reactive force of pump, is delivered in the reaction vessel by inlet pipeline S8, and oil gas mixed solution flow velocity is 1 liter/second; Press 10/cm of density on the positive electrode plate ²Arrange needle electrode, the field intensity between positive electrode plate and the negative electrode plate is 100kv/cm, and discharge frequency is 500hz, and pulsewidth is 10 μ s; Start high-voltage power supply S1, the pulse power begins discharge, the oil gas mixed solution reaction vessel of flowing through, and oily chain is constantly punctured cracking; The oil chain constantly is cracked into the small molecules in 2C～18C scope, the reaction vessel of at every turn flowing through, and oily chain cracking degree reaches 35%～40%; After the pulse electric field device cracking, the oil gas mixed solution flows out reaction vessel with 1 liter/second flow velocity, and gas is discharged through outlet pipe S9, and the vegetables oil after the cracking flows out through outlet conduit S12, and flows into separator S11; The molecule that separator S11 obtains cracking is separating of oil to come out and is delivered to oil reservoir S10, and not cleaved macromole oil then returns among the oil reservoir S5 by pipe-line transportation, continues to be transported to reaction vessel and carries out cracking.Like this, the oil gas mixed solution flows in system circularly, and the cracking constantly of vegetables oil oil chain through 10 minutes action time, is stopped power supply, and the branch seed oil that cracking is separated can reach oil overall 70%～90%.

Embodiment 3

At first the tung oil of 10L is inserted among the oil reservoir S5, and the interior ventilation from oil reservoir S5 bottom to oil by gas tank S13 and bubbler S14, the gas pressure intensity that feeds in the oil reservoir S5 is 4 normal atmosphere, start agitator S6, begin to stir oil gas, about 2～3 minutes time, oil gas namely fully mixes; Then, ejector priming S7 stirs sufficient oil gas mixed solution under the reactive force of pump, is delivered in the reaction vessel by inlet pipeline S8, and oil gas mixed solution flow velocity is 10 liters/second; Press 20/cm of density on the positive electrode plate ²Arrange needle electrode, the field intensity between positive electrode plate and the negative electrode plate is 500kv/cm, and discharge frequency is 5khz, and pulsewidth is 30 μ s; Start high-voltage power supply S1, the pulse power begins discharge, and the oil gas mixed solution reaction vessel of flowing through, oily chain are constantly punctured cracking (gas molecule mixes with oil molecule, makes that oily chain is easier to be ruptured by electric field breakdown, has promoted the splitting action of pulsed electrical field to carbochain); The oil chain constantly is cracked into the small molecules in 2C～18C scope, the reaction vessel of at every turn flowing through, and oily chain cracking degree reaches 35%～40%; After the pulse electric field device cracking, the oil gas mixed solution flows out reaction vessel with 10 liters/second flow velocity, and gas is discharged through outlet pipe S9, and the vegetables oil after the cracking flows out through outlet conduit S12, and flows into separator S11; The molecule that separator S11 obtains cracking is separating of oil to come out and is delivered to oil reservoir S10, and not cleaved macromole oil then returns among the oil reservoir S5 by pipe-line transportation, continues to be transported to reaction vessel and carries out cracking.Like this, the oil gas mixed solution flows in system circularly, and the cracking constantly of vegetables oil oil chain through 10 minutes action time, is stopped power supply, and the branch seed oil that cracking is separated can reach oil overall 70%～90%.

Claims

One kind based on the high-voltage pulse device by oil gas hybrid mode cracking vegetables oil method, it is characterized in that this method comprises the steps:

Step (1) constantly feeds gas to the vegetables oil in the whipping appts, and stirring fully mixes oil gas;

Step (2) is delivered to vegetables oil and gas mixed solution in the reaction vessel reacts; Be provided with positive electrode plate and negative electrode plate in the described reaction vessel, be furnished with needle electrode on the positive electrode plate; Needle electrode constantly discharges by the frequency of setting, and the vegetables oil in the oil gas mixed solution is cracked into the branch seed oil in 2C～18C scope under the high-voltage pulse effect;

Behind the flow velocity process reaction vessel of step (3) oil gas mixed solution with setting, gas is discharged from outlet pipe, and oil flows out from outlet conduit, and outlet conduit is communicated to tripping device, and the uncracked vegetables oil of the branch seed oil Buddhist monk who in tripping device cracking is obtained separates; Wherein the branch seed oil that obtains of cracking is delivered to oil reservoir, and still uncracked vegetables oil is back in the whipping appts, and jumps to step (1);

Press 1～20/cm of density on the described positive electrode plate ²Arrange needle electrode;

Field intensity between positive electrode plate and the negative electrode plate is 10kv/cm～500kv/cm, and discharge frequency is 50hz～5khz, and pulsewidth is 5 μ s～30 μ s.
According to claim 1 a kind of based on the high-voltage pulse device by oil gas hybrid mode cracking vegetables oil method, it is characterized in that: the flow velocity that the oil gas mixed solution is set is 0.1 liter/second～10 liters/second.
According to claim 1 a kind of based on the high-voltage pulse device by oil gas hybrid mode cracking vegetables oil method, it is characterized in that: described vegetables oil is one or more in rapeseed oil, tung oil, plam oil, the oleum lini.