A method of recovering carbon dioxide from a synthesis gas stream
generated within a synthesis gas facility. After the synthesis gas stream
is passed through at least one process heat exchanger of the steam
generation system located downstream of the water-gas shift reactor, the
temperature of the synthesis gas stream is increased while simultaneously
adding steam to the synthesis gas stream. Thereafter, the synthesis gas
stream is added to an absorption system having an absorption zone
utilizing a solvent to absorb the carbon dioxide and a regeneration zone
to disengage the carbon dioxide from the solvent and thereby regenerate
the solvent. Heat is transferred from the synthesis gas stream to the
regeneration zone to promote disengagement of the carbon dioxide from the
steam and such that between about 40 percent and about 90 percent of the
carbon dioxide originally present in the synthesis gas stream is
recovered.