Chemistry of inorganic compounds – Hydrogen or compound thereof – Elemental hydrogen
Reexamination Certificate
2011-03-29
2011-03-29
Langel, Wayne (Department: 1736)
Chemistry of inorganic compounds
Hydrogen or compound thereof
Elemental hydrogen
Reexamination Certificate
active
07914765
ABSTRACT:
The present invention provides a reactor and gasification process for the continuous controlled production of hydrogen (H2) and a by-product synthesis gas (mixture of CO+H2+CO2), such a process called a hydrogen priority poly-generation process (HPPP). The reactor uses a circulating molten iron process, which is capable of gasifying a variety of carbonaceous materials including low rank coals and biomass. The process employs an iron steam oxidation-reduction cycle in a multi-chamber reactor including a multi-vessel reactor system, where in one compartment or vessel hydrogen is produced by steam oxidation of molten iron; and in a second compartment or vessel the iron is regenerated by carbon reduction of molten iron oxide thereby producing a by-product synthesis gas (CO+H2+CO2), and excess heat which can be used to produce steam, and in a third step the iron is purified before being returned to the steam oxidation step in the process. An embodiment of this process uses low rank coals having high ash levels in a reactor, which is designed to continuously extract ash from the molten iron bath. A second embodiment uses low ash carbon materials such as highly beneficiated coals in a simpler process that produces pure streams of hydrogen and CO.
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Fairlie Matthew James
McLean Leslie C.
Stuart Andrew T. B.
Available Energy Corporation
Hill & Schumacher
Langel Wayne
Schumacher Lynn C.
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