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US 11,891,300 B2Granted
Clean liquid fuels hydrogen carrier processes
AssigneeChevron U.S.A. Inc.
InventorsBi-Zeng Zhan, Steven Xuqi Song, Trenton Otto, Yaofan Yi
Life of this patent
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Abstract
The present disclosure refers in one embodiment to processes for making and transporting clean hydrogen fuel. The processes may involve hydrotreating, hydrocracking, or both hydrotreating and hydrocracking an aromatic feedstock under conditions to obtain a liquid hydrocarbon fuel. The liquid hydrocarbon fuel is hydrogenated to obtain a hydrogen-rich fuel that is transported to a dehydrogenation facility that may also be at or near a hydrogen station. The hydrogen-rich fuel is used to obtain hydrogen and a second liquid hydrocarbon fuel.
Claims18
A process comprising:
- hydrotreating, hydrocracking, or both hydrotreating and hydrocracking an aromatic feedstock under conditions to obtain a liquid hydrocarbon fuel comprising less than about 30 ppm sulfur and less than about 13.5 wt. % hydrogen;
- hydrogenating the liquid hydrocarbon fuel under conditions to obtain a hydrogen-rich fuel comprising less than about 1 ppm sulfur and greater than about 14.5 wt. % hydrogen;
- transporting the hydrogen-rich fuel to a dehydrogenation facility;
- dehydrogenating the hydrogen-rich fuel under conditions to obtain hydrogen and a second liquid hydrocarbon fuel comprising less than about 30 ppm sulfur and less than about 13.5 wt. % hydrogen;
- separating the hydrogen and the second liquid hydrocarbon fuel;
- and
- recycling the second liquid hydrocarbon fuel.
4 more elements
A process comprising:
- hydrogenating an aromatic feedstock comprising less than 50 ppm sulfur under conditions to obtain a hydrogen-rich fuel comprising less than about 1 ppm sulfur and greater than about 14.5 wt. % hydrogen;
- transporting the hydrogen-rich fuel to a dehydrogenation facility;
- dehydrogenating the hydrogen-rich fuel under conditions to obtain hydrogen and a second liquid hydrocarbon fuel comprising less than about 30 ppm sulfur and less than about 13.5 wt. % hydrogen;
- separating the hydrogen and the second liquid hydrocarbon fuel;
- and
- recycling the second liquid hydrocarbon fuel.
3 more elements
Dependencies are inferred from the claim text.