Partial oxidation burner apparatus

Details Partial oxidation burner apparatus Partial oxidation burner apparatus

1980-07-14

1982-09-28

Kratz, Peter F.

Gas: heating and illuminating

Generators

48 86R, 48 95, 48180F, 110261, 239413, 2394193, 2394245, C10J 350

Patent

active

043516459

ABSTRACT:
A burner for producing synthesis gas, fuel gas or reducing gas from slurries of solid carbonaceous fuel and/or liquid or gaseous hydrocarbon fuel. The burner has a high turndown feature and comprises a central conduit; a central bunch of parallel tubes that extend longitudinally through said central conduit; an outer conduit coaxial with said central conduit and forming an annular passage therewith; and an annular bunch of parallel tubes that extend longitudinally through said annular passage; and wherein the downstream ends of said central and annular bunches of parallel tubes are respectively retracted upstream from the burner face a distance of about 0 to 12 i.e. 3 to 10 times the minimum diameter of the central exit orifice and the minimum width of the annular exit orifice. Three ranges of flow through the burner may be obtained by using one or both bunches of tubes and their surrounding conduits. Throughput levels may be rapidly changed--up and down--without sacrificing stable operation. Additional mixing of the reactant streams is obtained in one embodiment by providing one or more coaxial cylindrical shaped pre-mix chambers in series in the central conduit and/or one or more annular shaped pre-mix chambers in series in the annular passage.

REFERENCES:
patent: 1451063 (1923-04-01), Anthony
patent: 2934410 (1960-04-01), Smith
patent: 3856457 (1974-12-01), Miller
patent: 3945942 (1976-03-01), Marion et al.

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