Carbon dioxide impregnation of tobacco by super cooling

Details Carbon dioxide impregnation of tobacco by super cooling Carbon dioxide impregnation of tobacco by super cooling

1978-10-13

1981-02-17

Millin, V.

Tobacco

Cigar or cigarette making

Tobacco feeding

A24B 318

Patent

active

042508983

ABSTRACT:
A process for impregnating tobacco with carbon dioxide is provided. The process comprises: (a) contacting tobacco with carbon dioxide gas at relatively low pressure (b) rapidly cooling the tobacco-carbon dioxide system until the carbon dioxide condenses as liquid or solid within the tobacco and finally solidifies, and (c) releasing the pressure in the cooled system. Thereafter, the carbon dioxide-treated tobacco may be expanded conventionally, such as by subjecting it to heating conditions effective to liberate the carbon dioxide therein.

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