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US 2012/0266793 A1Published application
Process for cogasifying and cofiring engineered fuel with coal
AssigneeRe Community Energy, LLC
InventorsJames W. BOHLIG, Dingrong BAI
Life of this patent
Estimating the term…
Abstract
Described is an integrated process of cogasifying an engineered fuel, formulated to be suitable for working under reducing environment, with coal and cofiring another engineered fuel, formulated to be suitable for working under oxidizing environment, with coal to produce electric power.
Claims47
An integrated method of a combustion system, comprising:
- introducing a first engineered fuel and a first fossil fuel into a gasifier;
- cogasifying the first engineered fuel and the first fossil fuel to produce syngas;
- introducing a second engineered fuel, a second fossil fuel and the produced syngas into a combustion reactor;
- and
- cofiring the second engineered fuel, the second fossil fuel, and the produced syngas.
2 more elements
An integrated method for varying an overall cofiring ratio of a combustion system, comprising:
- introducing a first engineered fuel and a first fossil fuel into a gasifier at a first cofiring ratio;
- cogasifying the first engineered fuel and the first fossil fuel to produce syngas;
- introducing a second engineered fuel and a second fossil fuel into a combustor at a second cofiring ratio;
- introducing the produced syngas into the combustor;
- cofiring the second engineered fuel, the second fossil fuel, and the produced syngas;
- and
- varying the overall cofiring ratio of combustion by varying an input characteristic of at least two of the first engineered fuel, the first fossil fuel, the second engineered fuel, and the second fossil fuel, wherein the first cofiring ratio and the second cofiring ratio are substantially unchanged.
4 more elements
A combustion system, comprising:
- a gasifier for receiving a first engineered fuel and a first fossil fuel at a first cofiring ratio, said gasifier operable for cogasifying the first engineered fuel and the first fossil fuel to produce syngas;
- a combustor for receiving a second engineered fuel and a second fossil fuel at a second cofiring ratio, said combustor further receiving the syngas from the gasifier, said combustor operable for cofiring the second engineered fuel, the second fossil fuel, and the produced syngas;
- and
- wherein the combustion system is operable to vary an overall cofiring ratio of the combustion system by varying an input characteristic of at least two of the first engineered fuel, the first fossil fuel, the second engineered fuel, and the second fossil fuel, wherein the first cofiring ratio and the second cofiring ratio are substantially unchanged.
1 more element
An integrated method of a combustion system, comprising:
- introducing a first engineered fuel and a first fossil fuel into a cofiring unit;
- cofiring the first engineered fuel and the first fossil fuel to produce syngas;
- introducing a second engineered fuel, a second fossil fuel and the produced syngas into a combustion reactor;
- and
- cofiring the second engineered fuel, the second fossil fuel, and the produced syngas.
2 more elements
Dependencies are inferred from the claim text.