Process and apparatus for providing a feedstock
AssigneeLanzaTech, Inc.
InventorRobert John Conrado
Life of this patent
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Abstract
The disclosure is directed to a process and an apparatus for providing a feedstock. A gaseous feed stream comprising at least one hydrocarbon is passed to a reforming unit followed by a water gas shift reaction zone to provide a first gaseous stream comprising H2, CO, and CO2. The first gaseous stream is fed a hydrogen separation zone to separate it into a hydrogen enriched stream and a second gaseous stream comprising CO, CO2 and H2. The second gaseous stream is fed to a CO2 to CO conversion system to produce a third gaseous stream comprising H2 and CO having a H2:CO molar ratio of less than 5:1. The third gaseous stream is fed as the feedstock for a gas fermentation unit to have increased stability and product selectivity.
Claims20
A process for providing a feedstock, comprising:
- a. providing a first gaseous stream comprising H2, CO, and CO2;
- b. passing the first gaseous stream to a hydrogen separation zone to produce a hydrogen enriched stream and a second gaseous stream comprising CO, CO2 and H2;
- c. passing the second gaseous stream to a CO2 to CO conversion system to produce a third gaseous stream comprising H2 and CO having a H2:CO molar ratio of less than 5:1;
- and
- d. passing the third gaseous stream to a gas fermentation unit.
An apparatus for providing a gas fermentation feedstock comprising:
- a. a gaseous feed line in fluid communication with a reforming unit;
- b. a water gas shift reaction zone in fluid communication with the reforming unit;
- c. a hydrogen separation zone in fluid communication with the water gas shift reaction zone, and having a hydrogen stream outlet, and a second gaseous stream outlet;
- d. a CO2 to CO conversion system in fluid communication with the second gaseous stream outlet;
- and
- e. a gas fermentation unit in fluid communication with the CO2 to CO conversion system and having a product stream outlet and an off-gas stream outlet.
Dependencies are inferred from the claim text.