Devices made of stainless steel for mixing gases and methods for mixing gases. Where the device includes a main pipe into which a plurality of plates are inserted and arranged parallel to one another and extend from one pipe wall to the opposite pipe wall of the main pipe. A distributor pipe from which a plurality of supply lines branch off outside the main pipe. Where each supply line leads into a separate plate of the plates and is connected in the plates to a plurality of channels that are connected via outlet openings to the main pipe. Where the outlet openings are installed at the end faces of the plates facing away from the gas flow when a gas flows through the main pipe and where the end faces of the plates facing away from the gas flow when a gas flows through the main pipe are flat.

The present application relates to abatement processes and systems of nitrogen oxide (NO.sub.x) contained in exhaust gases, more in particular produced by stationary burner and combustion systems. The NO.sub.x are removed by reduction using a catalyst and a reducing agent that is introduced into the exhaust gases and being mixed therewith. The mixture is then conducted over the catalyst resulting in conversion of the NO.sub.x in environmentally neutral N.sub.2 and H.sub.2O. The present application more in particular relates to a mixing system for such a NO.sub.x abatement system to mix the exhaust gases with the reducing agent.

An apparatus for producing nano-bubbles in a moving liquid carrier includes a conduit through which a liquid carrier can flow, a gas diffuser disposed on an inner surface of the conduit, and a funnel comprising: (i) a first open end having a first cross-sectional area that receives a moving liquid carrier; (ii) a second open end opposite the first open end defining a second cross-sectional area smaller than the first cross-sectional area and fluidly coupled to the opening of the conduit; and (iii) a wall extending from the first open end to the second open end. The funnel is configured to create turbulent flow above the turbulent threshold in the absence of external energy that allows the liquid carrier to shear gas from the outer surface of the diffuser, thereby forming nano-bubbles in the liquid carrier.

A multi-autoclave lateral conversion module includes a central mixing process pipe having first and second terminal ends, a heating unit providing heated air at the first terminal end of the central mixing process pipe, two or more gas injection units connected to opposing sides of the central mixing process pipe at a first addition point located between the first and the second terminal ends, and each gas injection unit receiving the process discharge gas from an autoclave unit. The process discharge gas is transmitted from an autoclave unit through the gas injection unit into the central mixing process pipe where it mixes with the process discharge gas from the other autoclave unit, and then the mixed process gases are converted. Process units other than autoclaves can also utilize the module and method provided.

This application relates to a system and method of treating a liquid wherein an oxygen infusion system is used to supersaturate the liquid, wherein oxygen is transferred to the liquid free of oxygen bubbles. The oxygen infusion system can include an eductor without any moving parts, the eductor configured to pump the liquid through a plurality of gas infusion modules, driving liquid flow from a bottom portion of a gas infusion tank towards a top portion of the gas infusion tank thereby causing at least some of the liquid to flow from a bottom end of the plurality of gas infusion modules to a top end of the plurality of gas infusion modules.