DEVICE AND METHOD FOR COMBINING OILS WITH OTHER FLUIDS AND MIXTURES GENERATED THEREFROM
A device and method a provided for mixing and enhancing reaction between oil and a non-oil liquid by exploiting the formation, implosion and explosion of numerous cavitation bubbles within a cavitation device. Intense localized energy from the collapse of the cavitation bubbles subjects the mixture to intense heat and pressure, thereby accelerating reaction between the oil and non-oil liquid. In one embodiment, the non-oil liquid is an alcohol, and the cavitation device is used to enhance a transesterification reaction to convert the oil and alcohol into biodiesel in the presence of a catalyst.
1 . A method for producing a mixture of an oil and a non-oil liquid comprising:
iteratively cycling the oil and the non-oil liquid together within a loop comprising a cavitation device to produce cavitation bubbles within the oil and the non-oil liquid, wherein collapse of the cavitation bubbles produces shock waves that produce localized heat and pressure to mix the oil and non-oil liquid; and
terminating the cycle once a desired reaction has occurred.
2 . The method of claim 1 , wherein the non-oil liquid is an alcohol and the desired reaction is transesterification.
3 . The method of claim 2 , wherein the oil is a vegetable oil or animal fat.
4 . The method of claim 2 , wherein the mixture comprises biodiesel and a glycerol by-product.
5 . The method of claim 1 , wherein the non-oil liquid is water and the mixture comprises a stable suspension comprising micelles.
6 . The method of claim 1 , wherein the desired reaction occurs when the mixture is heated to a predetermined temperature.
7 . The method of claim 6 , wherein the predetermined temperature is 60° C.
8 . A method for producing a biofuel, comprising:
providing a loop comprising a cavitation device and a pump;
introducing a mixture of an oil, an alcohol and a catalyst into the loop;
iteratively cycling the mixture through the cavitation device to produce cavitation bubbles within the mixture, wherein collapse of the cavitation bubbles produces shock waves that produce localized heat and pressure to induce a reaction to convert the mixture into the biofuel and a glycerol by-product; and
separating the biofuel from the glycerol by-product.
9 . The method of claim 8 , comprising combining the alcohol and the catalyst prior to mixture with the oil.
10 . The method of claim 8 , wherein the oil comprises vegetable oil or animal fat.
11 . The method of claim 8 , wherein the alcohol is methanol.
12 . The method of claim 8 , wherein the cycling is terminated once the mixture reaches a pre-determined temperature.
13 . The method of claim 12 , wherein the pre-determined temperature is 60° C.
14 . The method of claim 8 , further comprising after separating the biofuel, washing the biofuel to remove contaminants.
15 . A device for producing a mixture of an oil and non-oil liquid, comprising:
a processing loop;
means of introducing the oil and non-oil liquid into the processing loop;
a pump for pumping a combination of oil and non-oil liquid iteratively through the processing loop until a predetermined condition is achieved;
a cavitation device disposed within the loop, the cavitation device comprising a plurality of nozzles disposed within a chamber, wherein the plurality of nozzles produce cavitation bubbles within the oil and non-oil liquid, wherein collapse of the cavitation bubbles produces shock waves that produce localized heat and pressure to induce reaction between the oil and non-oil liquid; and
an outlet port for removing a reacted mixture once the predetermined condition has been achieved.
16 . The device of claim 15 , wherein the oil is vegetable oil and the non-oil liquid is methanol.
17 . The device of claim 15 , further comprising a temperature sensor, wherein the predetermined condition is heating the mixture to a predetermined temperature.