PROCESS FOR THE PURIFICATION-SWEETENING OF NATURAL GAS BY MEANS OF CONTROLLED DISSOCIATION OF HYDRATES AND USE THEREOF AS SEPARATORS
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United States of America Patent
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Issued Date -
Jul 28, 2011
app pub date -
Aug 10, 2009
filing date -
Aug 14, 2008
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Abandoned
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Abstract
The invention concerns a process for reducing and/or removing sour gases, such as carbon dioxide and hydrogen sulfide, from natural gas or from gas associated with oil reservoirs, by means of the formation of mixed hydrates, wherein a selective separation is carried out both during the hydrates decomposition, under pressure conditions close to atmospheric pressure and temperatures little below zero, and, preferably, during a preliminary step, with pressures and temperatures close to the equilibrium values.
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