Abstract: Post-mix burner and use of same for generating a flame curtain, the burner having a longitudinal central dividing wall (5) terminating in a wall head (7) towards the burner top (4), an oxidant inlet compartment (102) and an oxidant outlet compartment (103) on a first side of the central wall (5), a fuel inlet compartment (202) and a fuel outlet compartment on the opposite side of the central wall (5); the wall head (7) presenting a first set of oxidant outlet passages (107) and a second set of fuel outlet passages (207) terminating respectively in first oxidant ejection openings (100) and second fuel ejection openings (200) in an ejection surface (10) at the burner top (4), the oxidant and fuel ejection openings (100, 200) each extending in the longitudinal direction along the ejection surface (10).

Abstract: Installation for analyzing the level of at least one element, from at least two initial gas sources (S1, S2, . . . ) in a sampling procedure, using at least one analyzer (A1, A2, . . . ) capable of analyzing the element, including: at least two sources (S1, S2, . . . ) of initial gases to be analyzed; at least two tapping lines (Lp1, Lp2, . . . ), each line being connected in its upstream part to one of the initial gas sources, and in its downstream part to a respective flow-directing component (V1, V2. . . ); at least two discharge lines (LE1, LE2, . . . ), each discharge line being connected in its upstream part to one of the directing components and in its downstream part to a discharge or to a storage point (E1, E2, . . . ); at least two secondary lines (Ls1, Ls2, . . .

Abstract: The invention relates to a process for preparing a heat treatment atmosphere by a catalytic reaction in a catalytic reactor (16) between a first gas mixture (12) containing oxygen and a second gas mixture (26) containing a hydrocarbon, characterized in that the catalytic reactor is arranged in substantially vertical position and in that the reaction mixtures are introduced into the catalytic reactor through the bottom (19) of the reactor with recovery of the heat treatment atmosphere resulting from the reaction at the top (20) of the reactor.

Abstract: An installation for monitoring an apparatus for generating atmospheres. The installation includes a measuring device for measuring at least one parameter representing the actual operation of the apparatus, an evaluator for evaluating the drift of each representative parameter over time and a trigger for triggering an intervention on the apparatus as a function of the drift before values of each representative parameter reach predetermined critical values.

Abstract: Process for the preparation of a heat treatment atmosphere by a catalytic reaction in a catalytic reactor including an inlet and an outlet between a first gas mixture comprising oxygen and a second gas mixture comprising a hydrocarbon for the purpose of supplying said atmosphere to a user site comprising at least one user location, comprising the steps of:a) feeding said first and second gas mixture at a given flowrate into the inlet of said catalytic reactor;b) continuously measuring the pressure of the heat treatment atmosphere obtained at the reactor outlet;c) comparing the pressure measured during step b) with a setpoint pressure level P.sub.