Abstract: Provided is a process for melting a charge in a furnace. Energy of fusion is supplied to the charge, and gases including at least one combustible gas are generated during the the melting. A post-combustion of the combustible gas is performed by injecting an oxidant gas containing more than 25% by volume of oxygen during at least some periods of the process. The oxidant gas is injected above the charge, in the form of at least one oxidant gas jet. Each jet has a flow rate of between approximately 50 and 1200 Sm.sup.3 /h and a speed of injection into the furnace of between approximately 5 m/s and 150 m/s. The process has particular applicability to an electrical furnace for melting scrap for the production of steel.

Abstract: A device for confining leaks of one or more gases contained in a gas cylinder, which comprises a shroud made of a flexible and nonflammable material which is inert with respect to the gas or gases contained in the cylinder and designed to partially envelope said cylinder, wherein said shroud has an opening provided with means for sealing said shroud to the surface of the cylinder and wherein the shroud is provided with an outlet coupling connected to a line for removing one or more of the gases to a means for neutralizing said one or more gases.