The present invention relates to a method for producing and delivering a gas mixture having a selected composition of a first gas and at least one second gas, comprising the following steps: (a) providing a main gas flow comprising the first gas in a main conduit, (b) separating the main gas flow into a first plurality of secondary gas flows, (c) guiding each secondary gas flow through a secondary conduit, (d) adding at least one second gas to at least one of the first plurality of secondary gas flows in the respective secondary conduit through a delivering conduit, said delivering conduit protruding into the secondary conduit, and (e) combining the first plurality of secondary gas flows to the gas mixture. With the technical teaching of the present invention a dynamic gas bottle filling is possible wherein the second gas components may have a concentration form some ppb to percent.

Reactor vessel and a feed nozzle assembly for feeding a gas and a liquid into such reactor vessel. The feed nozzle assembly comprises an outer tube supplying a first liquid feed, such as oil, an inner tube supplying a dispersion gas, such as steam, a third tube supplying a second liquid feed, such as biomass, and a nozzle end. A catalytic cracking process wherein two or more hydrocarbon liquids are jointly dispersed into a dispersion gas and jetted via the same feed nozzle assembly into a catalytic cracking reactor.

A method and an installation for treating a main wastewater stream flowing in a closed conduit with a flow direction. The method includes the steps of: introducing a liquid into at least one pre-treatment stream; generating a gas stream containing ozone gas; introducing the gas stream into the at least one pre-treatment stream, each with a gas injector, resulting in at least one mixed-phase stream comprising ozone laden gas and liquid; passing the at least one mixed-phase stream through at least one static mixer, resulting in a predefined gas bubble size; and injecting the at least one mixed-phase stream in the main wastewater stream perpendicular to the flow direction.

An object of this invention is to provide an exhaust gas purification device with which a decrease in reduction (denitrification) efficiency can be reduced. An exhaust gas purification device of this invention for a ship 1 includes: a reducing agent injector 61 of a reducing agent supply device supplying a reducing agent to an exhaust gas passing through an exhaust pipe of an engine 21 to be mounted in the ship; an exhaust mixer 62 mixing the exhaust gas and the reducing agent in a location downstream of the reducing agent injector 61 in an exhaust gas traveling direction; and selective catalytic reduction devices 34, 35 facilitating reduction of NOx in the exhaust gas of the engine 21 in a location downstream of the exhaust mixer 62 in the exhaust gas traveling direction. Multiple reducing agent injectors 61 are provided, and respectively have injection ports arranged at equal intervals along a circumferential direction of the exhaust pipe.

Reactor vessel and a feed nozzle assembly for feeding a gas and a liquid into such reactor vessel. The feed nozzle assembly comprises an outer tube supplying a first liquid feed, such as oil, an inner tube supplying a dispersion gas, such as steam, a third tube supplying a second liquid feed, such as biomass, and a nozzle end. A catalytic cracking process wherein two or more hydrocarbon liquids are jointly dispersed into a dispersion gas and jetted via the same feed nozzle assembly into a catalytic cracking reactor.

The present invention relates to a method for producing and delivering a gas mixture having a selected composition of a first gas and at least one second gas, comprising the following steps: (a) providing a main gas flow comprising the first gas in a main conduit, (b) separating the main gas flow into a first plurality of secondary gas flows, (c) guiding each secondary gas flow through a secondary conduit, (d) adding at least one second gas to at least one of the first plurality of secondary gas flows in the respective secondary conduit through a delivering conduit, said delivering conduit protruding into the secondary conduit, and (e) combining the first plurality of secondary gas flows to the gas mixture. With the technical teaching of the present invention a dynamic gas bottle filling is possible wherein the second gas components may have a concentration form some ppb to percent.

The present application provides a selective catalyst reduction system for use with a combustion gas stream. The selective catalyst reduction system may include a tempering air system with a finger mixer and a number of mixing boxes positioned downstream of the finger mixer and a catalyst positioned downstream of the tempering air system. The tempering air system cools the combustion gas stream and evens out the temperature profile before the combustion gas stream reaches the catalyst.

A system for desalting a crude oil stream includes vessel that has an interior piping structure that releases wash water into a crude oil flow within the vessel. The piping structure, which may have more than one level, has a plurality of spray nozzles for dispersing or releasing the wash water into the flowing crude oil stream. The spray nozzles may be located on a same side or opposite sides of the piping structure. Where multiple levels are used, the number of spray nozzles on each level may be the same as or different than the number of spray nozzles on other levels. The pressure drop through each spray nozzle is no greater than 300 psi and the nozzles deliver a dilution water droplet no larger than 300 microns in diameter. A mixing valve, static mixer, or both can be placed downstream of the vessel.

An apparatus and method for increasing the mass transfer of a treatment substance into a liquid flowing in a pipe in a full pipe flow regime has a diversion conduit which receives a portion of the liquid. The portion of the liquid is mixed with a treatment substance and then reintroduced into the pipe at a downstream location through an injection structure. Between the diversion conduit, on the upstream side, and the injection structure, on the downstream side, there are a plurality of flow vanes disposed circumferentially about a cylindrical inner wall of the pipe, where each flow vane extends radially inward toward a central axis of the pipe, extending into the main stream flow of the liquid. Another embodiment of the invention has a flow grid located downstream of the injection structure.

An axial infuser assembly for use in a water treatment system is provided. The axial infuser assembly includes a first segment in fluid communication with a first inlet pipe. The first segment is further configured to receive a slurry flow. A second segment is in fluid communication with the first segment and is connected to an outlet pipe. The second segment receives the slurry flow from the first segment. A third segment is connected to the first and second segments and is also connected to a second inlet pipe. The third segment receives a motive flow. A jet assembly is in fluid communication with the third segment and conveys the motive flow in the third segment to the slurry flow. The motive flow exiting the jet assembly is configured to infuse with the slurry flow and further configured to urge the slurry flow into flowing raw, untreated water.