Process and apparatus to obtain tobacco flavor extracts

1. Process to obtain tobacco flavor extracts, the process comprising:

conditioning a mixture of tobaccos in a primary tobacco manufacture and heating the mixture of tobacco to a temperature comprised between about 30 degrees Celsius and about 90 degrees Celsius for a time interval comprised between about 30 seconds and about 1 hour;

recovering emissions produced by the mixture conditioning; and

obtaining at least one flavor extract from the recovered emissions;

wherein conditioning a mixture of tobaccos includes increasing the degree of moisture of the tobacco during heating.

2. The process according to claim 1 , comprising:

adding the flavor extract to a component of an aerosol-forming article.

3. The process according to claim 1 , wherein the step of conditioning a mixture of tobaccos takes place in a conditioning chamber.

4. The process according to claim 3 , wherein the step of recovering emissions produced by the mixture conditioning comprises:

recovering emissions produced in the conditioning chamber and exiting the cylinder by means of an exhaust pipe.

5. The process according to claim 1 , comprising:

recovering emissions produced by the mixture conditioning of a single type of tobacco.

6. The process according to claim 1 , comprising:

supplying a plurality of different types of tobaccos;

separately recovering emissions produced by the mixture conditioning of each different type of tobacco;

obtaining a flavor extract for each separated emission; and

blending the flavor extracts obtained from the different types of tobaccos.

7. The process according to claim 1 , wherein the step of obtaining at least one flavor extract from the recovered emissions comprises:

condensing the emissions to obtain at least one condensed emission as said at least one flavor extract.

8. The process according to claim 7 , wherein condensing the emissions includes:

condensing the emission by cryogenic condensation.

9. The process according to claim 7 , comprising:

lowering the temperature of the emissions to below about −30 degrees Celsius.

10. The process according to claim 7 , comprising:

injecting liquid nitrogen into the emissions.

11. The process according to claim 7 , comprising:

collecting droplets of condensed emissions.

12. The process according to claim 1 , wherein the step of conditioning a mixture of tobacco comprises one or more of:

supplying heat to the mixture;

supplying steam to the mixture;

supplying water at a temperature of between about 10 degrees Celsius and about 80 degrees Celsius to the mixture.

13. The process according to claim 1 , wherein conditioning a mixture of tobaccos includes conditioning a mixture of tobacco leaves, stems and lamina.