Suprex Corp.

Gregory Shogan

Raymond K Houck

Mehdi Ashraf-Khorassani

The present invention pertains to an off-line collection system for use with supercritical fluid extraction. The system is comprised of apparatus for collecting analyte associated with the supercritical fluid extraction. The system is additionally comprised of an orifice for controlling flow of analyte to the collecting apparatus. The orifice converts analyte at a high pressure to a lower pressure. The orifice has a high pressure side which receives said high pressure analyte, and a lower pressure side in fluidic communication with the high pressure side which receives said high pressure analyte after it has been converted to a lower pressure. The high pressure side is capable of transporting analyte thereacross without essentially any loss thereof to the low pressure side which is in fluidic communication with the collecting apparatus. The analyte experiences essentially constant pressure as it is transported across the high pressure side. The system is also comprised of apparatus for desorbing the analyte from the collection apparatus. The desorbing apparatus is in fluidic communication with the collecting means. In a preferred embodiment, the system includes apparatus for purging the analyte. The purging apparatus is in fluidic communication with the collecting apparatus. Additionally, the collecting apparatus preferably includes a collection trap in which analyte is gathered, and apparatus for controlling the flow of analyte into the collection trap. The flow controlling apparatus is in fluidic communication with the collection trap and the purging apparatus. The flow control apparatus preferably includes an orifice.

Restrictor orifice for off-line supercritical fluid extraction

An orifice which includes a housing having a low pressure side with a first bore hole and a second bore hole. The low pressure side has a first channel and a second channel in fluidic communication with the first bore hole and the second bore hole, respectively. The housing also has a high pressure side with a third bore hole. The orifice also includes an adapter which has a tip, a fourth bore hole and a third channel in fluidic communication therewith. The third channel has a constant diameter for maintaining an essentially constant pressure thereacross when pressure is applied thereto such that fluid flowing through the third channel does not solidify. The adapter is sealingly received by the third bore hole such that the third channel and the first channel align. Additionally, the housing includes an interface plate disposed in the housing between the third channel and the first channel. The plate sealingly receives the tip of the adapter and allows for flow to exist between the third channel and the first channel through a plate hole. A method for collecting analyte. The method includes the steps of providing analyte obtained from supercritical fluid extraction to a collection trap through a high pressure side of an orifice.

Method for collecting analyte and an orifice for reducing pressure of a

The present invention pertains to an off-line collection system for use with supercritical fluid extraction. The system is comprised of mechanism for collecting analyte associated with the supercritical fluid extraction. The system is additionally comprised of an orifice for controlling flow of analyte to the collecting mechanism. The orifice converts analyte at a high pressure to a lower pressure. The orifice has a high pressure side which receives said high pressure analyte, and a lower pressure side in fluidic communication with the high pressure side which receives said high pressure analyte after it has been converted to a lower pressure. The high pressure side is capable of transporting analyte thereacross without essentially any loss thereof to the low pressure side which is in fluidic communication with the collecting mechanism. The analyte experiences essentially constant pressure as it is transported across the high pressure side. The system is also comprised of mechanism for desorbing the analyte from the collection mechanism. The desorbing mechanism is in fluidic communication with the collecting mechanism. In a preferred embodiment, the system includes mechanism for purging the analyte. The purging mechanism is in fluidic communication with the collecting mechanism. Additionally, the collecting mechanism preferably includes a collection trap in which analyte is gathered, and mechanism for controlling the flow of analyte into the collection trap. The flow controlling mechanism is in fluidic communication with the collection trap and the purging mechanism. The flow control mechanism preferably includes an orifice.

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North Huntingdon, PA, United States of America

Gregory Shogan