US 4,900,244 A · Gas flaring method and apparatus

Abstract

A method and apparatus for flaring a gas stream such as the gas mixtures formed in landfills while retarding the backward propagation of flame thereto are provided. The method comprises conducting the gas stream to a burner structure having a plurality of flow passages therein configured such that the gas stream can flow through the passages, but the backward propagation of flame therethrough is retarded; flowing the gas stream through the flow passages of the burner whereby the gas stream is jetted therefrom and initially mixed with air; igniting the gas stream; and mixing the ignited gas stream with additional air by confining the jetted and ignited gas mixture within a stack configured to allow the admission of air around the burner structure and to discharge products of combustion into the atmosphere.

Claims7

Dependent claims

A method of flaring a gas mixture formed in a landfill comprising the steps of:

withdrawing said gas mixture from said landfill;
conducting said gas mixture to an annular burner comprised of an annular channel having sides and a bottom and a continuous top structure having a plurality of elongated flow passages therein configured such that said gas mixture can flow through said passages but the backward propagation of flame therethrough at low pressure and low or static flow rate conditions is retarded;
flowing said gas mixture through said passages in said burner structure whereby the gas mixture is jetted therefrom and caused to mix with air surrounding said burner;
igniting the resulting gas mixture;
and
confining said ignited gas mixture within a vertical stack configured to allow the admission of additional air around said burner structure and to discharge combustion products into the atmosphere above said stack.

3 more elements

Dependencies are inferred from the claim text.

Gas flaring method and apparatus

Life of this patent

Gas flaring method and apparatus

Life of this patent

Abstract

Claims7