Countercurrent dehydration by hollow fibers
Patent 5108464 Issued on April 28, 1992. Estimated Expiration Date: 
March 20, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 20, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3144313 3339341 3511031 3735558 Process for the dehydration of gases containing hydrocarbons Apparatus for separating condensable gas Fluid separation membranes Method for removing water vapor from water vapor-containing gas Potable water from internal combustion engines Gas dehydration membrane apparatus InventorsAssigneeApplicationNo. 673128 filed on 03/20/1991US Classes:95/52, Water vapor permeates barrier96/8Parallel hollow fibers or cylinders (e.g., bundled, etc.)ExaminersPrimary: Spitzer, RobertAttorney, Agent or FirmForeign Patent References
International ClassesB01D 053/22B01D 071/68 AbstractA gas dehydration method and apparatus are disclosed which utilize lumen-side feed, hydrophilic polymer-inside-coated, thin-film composite hollow fiber membranes, the support fiber of which is highly permeable, such composite membranes being used in a module wherein the permeate flows countercurrent to the flow of the feed, and in which dried raffinate gas is mixed with water-containing permeate at a point opposite the feed end of the module. | |
