A process has been developed for producing diesel boiling range fuel from
renewable feedstocks such as fats and oils from plants and animals where
the process provides for sulfur-component management. The process
involves catalytically treating a renewable feedstock by hydrogenating
and deoxygenating to provide a hydrocarbon fraction useful as a diesel
boiling range fuel. A selective separation such as a hot high pressure
hydrogen stripper may be used to remove at least the carbon oxides from
the first zone effluent and provide a liquid recycle stream at pressure
and temperature. A vapor stream is separated from the net process
effluent and at least carbon dioxide is removed using at least one
selective or flexible amine absorber. The resulting hydrogen-rich stream
is recycled to the reaction zone.