Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By addition of extraneous agent – e.g. – solvent – etc.
Reexamination Certificate
2005-08-23
2008-10-28
Caldarola, Glenn (Department: 1797)
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By addition of extraneous agent, e.g., solvent, etc.
C585S867000
Reexamination Certificate
active
07442847
ABSTRACT:
A process for separating diamondoids and water from a gas stream that is being cooled to below atmospheric temperature is disclosed. The multi-component gas stream is contacted with a diamondoid solvent and a water solvent (glycol) simultaneously. The feed gas can be cooled to temperatures of at least −40° F. without formation of water-based or diamondoid solids. Downstream equipment is protected from large accumulations of diamondoid solids or liquids. The feed gas may be natural gas, coal seam gas, associated gas, or other naturally occurring gases. The rich solvent with diamonoids may be regenerated or simply recirculated with make-up of fresh solvent and a purge of rich solvent. The rich glycol and rich diamondoid solvent streams are each separated from the feed gas after cooling. The lean glycol and lean solvent can be mixed using static mixers in order to inject with a single set of nozzles.
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Advanced Extraction Technologies, Inc.
Boyer Randy
Caldarola Glenn
Howrey LLP
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