| Patent Number |
Title Of Patent |
Date Issued |
| RE32600 |
Distillative separation employing bottom additives |
February 16, 1988 |
| An improved method for the distillation of a feed stream containing hydrocarbon components, which method is directed toward the production of a bottom product stream and an overhead product stream, both with desired specifications, which method comprises recycling a minor portion of the |
| RE32068 |
Distillative separation employing bottom additives |
January 21, 1986 |
| An improved method for the distillation of a feed stream containing hydrocarbon components, which method is directed toward the production of a bottom product stream and an overhead product stream, both with desired specifications, which method comprises recycling a minor portion of the |
| 5142443 |
Cryogenic cooling of circuit boards |
August 25, 1992 |
| A mounting arrangement for electronic circuit chips in which at least one chip is mounted upon an appropriately electrically insulating chip plate. A connector board is mounted on top of the chip plate to electrically connect the chip with a cable allowing signals to be passed to and fro |
| 4717408 |
Process for prevention of water build-up in cryogenic distillation column |
January 5, 1988 |
| A process by which a vapor side product stream is taken from the bottom section of a cryogenic distillation column, such as a propane or ethane recovery column, which process optionally employs a nonpolar liquid additive for use in the separation of acid gases from a hydrocarbon feed |
| 4681612 |
Process for the separation of landfill gas |
July 21, 1987 |
| A recycle process for the separation of landfill gas containing a wide variety of impurities into a carbon dioxide product stream and a fuel-grade-pressurized methane product stream, the process providing for the removal of both the impurities and the carbon dioxide in a cryogenic co |
| 4462814 |
Distillative separations of gas mixtures containing methane, carbon dioxide and other components |
July 31, 1984 |
| Distillative separations of hydrocarbon feed mixtures containing at least methane and carbon dioxide, as well as other components, such as ethane, higher hydrocarbons, and hydrogen sulfide are disclosed. In the separations described, methane is preferably separated from an acid gas u |
| 4451274 |
Distillative separation of methane and carbon dioxide |
May 29, 1984 |
| An improvement in a Ryan/Holmes separation of methane from carbon dioxide is disclosed wherein the upper portion of a distillation column is operated, i.e., -70.degree. F., while still effectuating a separation of methane from carbon dioxide. This is achieved by increasing the amount of |
| 4444576 |
Energy-saving distillative separation using low-temperature heat input |
April 24, 1984 |
| A method for the distillative separation of a feed stream containing light hydrocarbons and acid gas components in a distillative column into an enriched overhead product, such as a carbondioxide fraction, and an enriched bottom product of C.sub.2 + and hydrogen sulfide, the method w |
| 4428759 |
Distillative separation employing bottom additives |
January 31, 1984 |
| An improved method for the distillation of a feed stream containing hydrocarbon components, which method is directed toward the production of a bottom product stream and an overhead product stream, both with desired specifications, which method comprises recycling a minor portion of the |
| 4416855 |
Radioactive waste treatment apparatus |
November 22, 1983 |
| Radioactive waste treatment apparatus in which the waste is burned in a controlled combustion process, the ash residue from the combustion process is removed and buried, the gaseous effluent is treated in a scrubbing solution the pH of which is maintained constant by adding an alkaline |
| 4383842 |
Distillative separation of methane and carbon dioxide |
May 17, 1983 |
| An improvement in a Ryan/Holmes separation of methane from carbon dioxide is disclosed wherein the upper portion of a distillation column is operated at temperatures above the triple point of carbon dioxide, i.e., -70.degree. F., while still effectuating a separation of methane from |
| 4383841 |
Distillative separation of carbon dioxide from hydrogen sulfide |
May 17, 1983 |
| A distillative separation of carbon dioxide and hydrogen sulfide is improved by adding a C.sub.3 -C.sub.6 alkane, a mixture of C.sub.3 -C.sub.6 alkanes, SO.sub.2 or SO.sub.3 to a distillation column to increase the relative volatility of carbon dioxide to hydrogen sulfide. Increasing |
| 4350511 |
Distillative separation of carbon dioxide from light hydrocarbons |
September 21, 1982 |
| An improved distillative separation of carbon dioxide and light hydrocarbons is disclosed in which the formation of an azeotrope between these components is prevented by addition of an agent to said distillation column and in which prevention of the azeotrope allows a more complete s |
| 4318723 |
Cryogenic distillative separation of acid gases from methane |
March 9, 1982 |
| A method of eliminating solids formation in a cryogenic distillative separation of acid gases from methane is disclosed. This method comprises adding a solids-preventing agent to the solids potential zone of the distillation column. Typical solids-preventing agents are one or more C. |
