METHOD AND DEVICE FOR PRESSING A LIQUID EXTRACT OUT OF A MATERIAL TO BE PRESSED
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United States of America
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Issued Date -
Oct 31, 2024
app pub date -
May 30, 2022
filing date -
May 30, 2022
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Abstract
A method for pressing a liquid extract out of a material to be pressed. The material to be pressed is supplied to a screw press and is transported along a pressing path in the screw press, and a pressing pressure is applied to the material to be pressed. The screw press is supplied with an extraction agent (e.g., carbon dioxide) which is discharged from the material to be pressed together with the extract. The carbon dioxide is supplied to the screw press in the form of dry ice pellets. The dry ice is mixed with and transported together with the material to be pressed through the screw press along the pressing path. The dry ice is converted into liquid or supercritical carbon dioxide, which dissolves in the extract and reduces the viscosity thereof and which effectively cools the material to be pressed in the screw press.
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