초록 ▼

A method is presented for stabilizing the flame on the tips of burner internals in a process for preparing synthesis gas by partial oxidation of a gaseous hydrocarbon-containing fuel. The method comprises supplying a gaseous hydrocarbon-containing fuel, a moderator gas and an oxidizer through a burn

A method is presented for stabilizing the flame on the tips of burner internals in a process for preparing synthesis gas by partial oxidation of a gaseous hydrocarbon-containing fuel. The method comprises supplying a gaseous hydrocarbon-containing fuel, a moderator gas and an oxidizer through a burner to a reactor, and adjusting the mass flow of the moderator gas such that the moderator gas concentration does not exceed a predetermined limit. The process conditions are effected such that the flame contacts the burner internal tips. In case of flame-lifting from the burner internal tips, the velocities and mass flows of the fuel and/or oxidizer and/or moderator gas are re-adjusted in such a manner that the flame is restabilized on the burner internal tips.

대표청구항 ▼

[ What is claimed is:] [1.] A method for stabilizing a flame on tips of burner internals in a process for preparing synthesis gas by partial oxidation of a gaseous hydrocarbon-containing fuel comprising the steps of:a) supplying a gaseous hydrocarbon-containing fuel, a moderator gas and an oxidizer

[ What is claimed is:] [1.] A method for stabilizing a flame on tips of burner internals in a process for preparing synthesis gas by partial oxidation of a gaseous hydrocarbon-containing fuel comprising the steps of:a) supplying a gaseous hydrocarbon-containing fuel, a moderator gas and an oxidizer through a burner to a reactor, wherein each of said fuel, moderator gas and oxidizer is supplied at a velocity and mass flow, and wherein the mass flow of the moderator gas is adjusted such that the moderator gas concentration does not exceed a predetermined limit;b) effecting process conditions such that the flame is contacting the burner internal tips; andc) re-adjusting the velocity and mass flow of the fuel and/or oxidizer and/or moderator gas in case of flame-lifting from the burner internal tips in such a manner that the flame is restabilized on the burner internal tips, wherein the re-adjusted mass flow of the moderator gas does not cause the moderator gas concentration to exceed said predetermined limit of step a).