Method and installation for the combined production of ammonia synthesis gas and carbon dioxide
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United States of America Patent
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Dec 8, 2015
Grant Date -
Jul 9, 2015
app pub date -
Jun 6, 2013
filing date -
Jun 25, 2012
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Abstract
In a method for the combined production of ammonia synthesis gas and carbon dioxide from a mixture of hydrocarbons, the cooled mixture from a reverse conversion is separated in an adsorption unit by pressure modulation (or PSA) producing a hydrogen-enriched flow having a purity at least equal to 98% and a residual gas, the residual gas is processed to produce carbon dioxide and a gas containing nitrogen and methane and at least a portion of the hydrogen-enriched flow and at least a portion of the gas containing nitrogen and methane are mixed to form an ammonia synthesis gas.
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