Recycle of byproducts to provide a green hydrogen stream for a methanol to jet fuel process
AssigneeUop LLC
InventorsIan G. Horn, John J. Senetar, Eseoghene Jeroro
Life of this patent
Estimating the term…
Abstract
In methanol to jet fuel complexes there is a need for hydrogen for several different processes including hydrogenation. Hydrogen is produced by steam methane reforming and from water gas shift reactions. Greater efficiencies are provided by sending off-gas streams from columns including demethanizer, dealkanizer, and a stripper to the reforming reactors to increase the amount of hydrogen available.
Claims20
A process for providing hydrogen in a process to produce jet fuel from methanol, comprising:
- sending a hydrocarbon rich off-gas stream to a reforming reactor or a partial oxidation reactor to produce a gas stream;
- sending a hydrogen rich off-gas stream to be combined with said gas stream to provide a hydrogen enhanced gas stream;
- and
- purifying said hydrogen enhanced gas stream to produce a hydrogen stream.
A process for providing hydrogen in a process to produce jet fuel from methanol, comprising:
- sending a hydrocarbon rich off-gas stream to a reforming reactor or a partial oxidation reactor to produce a gas stream, wherein said hydrocarbon rich off-gas stream is taken from at least one column selected from a dealkanizer column and jet fractionator column or combinations thereof;
- sending a hydrogen-rich off-gas stream to be combined with said gas stream to provide a hydrogen enhanced gas stream;
- and
- purifying said hydrogen enhanced gas stream to produce a hydrogen stream.
A process for providing hydrogen in a process to produce jet fuel from methanol, comprising:
- sending a hydrocarbon rich off-gas stream to a reforming section to produce a gas stream, wherein said off-gas stream is taken from at least one column selected from a dealkanizer column and a jet fractionator column or combinations thereof;
- sending a hydrogen-rich off-gas stream to be combined with said gas stream to provide a hydrogen enhanced gas stream, wherein said hydrogen-rich off-gas stream is taken from at least one column selected from a demethanizer column and a stripper column or a combination thereof;
- and
- purifying said hydrogen enhanced gas stream to produce a hydrogen stream.
Dependencies are inferred from the claim text.