A para-orthohydrogen conversion device comprises a vortex tube. The vortex tube may include an inlet disposed at a first end of the vortex tube, a catalyst disposed on the interior wall of the vortex tube, a first outlet comprising an opening on the perimeter of a second end of the vortex tube, a stopper disposed at the center of the second end of the vortex tube, and a second outlet disposed on the first end of the vortex tube. A method includes converting parahydrogen to orthohydrogen via the catalyst and rotational force as hydrogen gas moves through the vortex tube such that cooled parahydrogen-rich gas or liquid hydrogen accumulates near the center of the vortex tube.

This disclosure describes an improved heat transfer system for use in reaction vessels used in chemical and biological processes. In one embodiment, a heat transfer baffle comprising two sub-assemblies adjoined to one another is provided.

Methane may be dissociated at low temperatures and/or pressures utilizing a reactor designed to generate shockwaves in a supersonic gaseous vortex. Within a preprocessing chamber, the methane may be pressurized to a pressure of 700 kPa or more, and heated to a temperature below a dissociation temperature of methane. The methane may be introduced as a gas stream substantially tangentially to an inner surface of a chamber of the reactor to effectuate a gaseous vortex rotating about a longitudinal axis within the chamber. The gas stream may be introduced using a nozzle that accelerates the gas stream to a supersonic velocity. A frequency of shockwaves emitted from the nozzle into the gaseous vortex may be controlled. Product gas and carbon byproduct may be emitted from the chamber of the reactor. The carbon byproduct may be separated out from the product gas using a gas/solid separator.

An apparatus comprising: a vessel component comprising a flow-through interior chamber having an interior sidewall and an exterior sidewall; at least two inlets for introducing chemical components into the flow-through interior chamber; at least one outlet for removing product from the flow-through interior chamber; and an off center rotation component which is operatively connected to the vessel component. During operation of the apparatus, the off center rotation component generates vortical movement of at least two chemical components through the flow-through interior chamber of the vessel, and converts at least a portion of the at least two chemical components to at least one reaction product or product mixture. A method of using the apparatus to produce reaction products or product mixtures. The apparatus and method are useful for producing specialty chemicals such as fragrance and flavor compounds, insect pheromones, petrochemicals, pharmaceutical compounds, agrichemical compounds, and the like.

The invention relates weldments useful as heat transfer tubes in pyrolysis furnaces. The invention relates to tubes that are useful in pyrolysis furnaces. The weldments include a tubular member and at least one mixing element. The tubular member comprises an aluminum-containing alloy. The mixing element comprises an aluminum-containing alloy. The mixing element's aluminum-containing alloy can be the same as or different from the tubular member's aluminum-containing alloy. Other aspects of the invention relate to pyrolysis furnaces which include such weldments, and the use of such pyrolysis furnaces for hydrocarbon conversion processes such as steam cracking.

A mixing reactor for precipitating nanoparticles by mixing a precursor fluid with a second fluid at a higher temperature than the precursor fluid. The reactor comprises: a first fluid conduit with an inlet region configured to receive a flow of the precursor fluid, and an outlet region configured to output a mixed flow; and a second fluid conduit configured to receive a flow of the second fluid. The second fluid conduit extends into the first fluid conduit in a direction substantially perpendicular to the flow within the first fluid conduit, and has an opening for introducing the second fluid into the first fluid conduit. Related processes for producing nanoparticles are disclosed.

A processing system and method of producing a particulate material from a liquid mixture are provided. The processing system generally includes a system inlet connected to one or more gas lines to deliver one or more gases into the processing system, one or more power jet modules adapted to jet a liquid mixture into one or more streams of droplets and to force the one or more streams of droplets into the processing system, and a reaction chamber adapted to deliver the one or more streams of droplets in the presence of the one or more gases and process the one or more streams of droplets into the particulate material. The method includes delivering one or more gases into a processing system, jetting the liquid mixture into one or more first droplets streams using one or more power jet modules of the processing system and into the processing system, and reacting the one or more first droplets streams delivered from the processing chamber inside a reaction chamber of the processing system in the presence of the one or more gases into the particulate material at a first temperature.

A substance is treated using a device having: (a) a volute or cyclone head, (b) a throat connected to the volute or cyclone head, (c) a parabolic reflector connected to the throat, (d) a first wave energy source comprising a first electrode within the volute or cyclone head that extends through the outlet into the opening of the throat along the central axis, and a second electrode extending into the parabolic reflector and spaced apart and axially aligned with first electrode, and (e) a second wave energy source disposed inside the throat, embedded within the throat or disposed around the throat. The substance is directed to the inlet of the volute or cyclone head and irradiated with one or more wave energies produced by the first and second wave energy sources as the substance passes through the device.

The invention relates weldments useful as heat transfer tubes in pyrolysis furnaces. The invention relates to tubes that are useful in pyrolysis furnaces. The weldments include a tubular member and at least one mixing element. The tubular member comprises an aluminum-containing alloy. The mixing element comprises an aluminum-containing alloy. The mixing element's aluminum-containing alloy can be the same as or different from the tubular member's aluminum-containing alloy. Other aspects of the invention relate to pyrolysis furnaces which include such weldments, and the use of such pyrolysis furnaces for hydrocarbon conversion processes such as steam cracking.

The invention relates to a device consisting of a reactor facility for the electrolytic treatment, with relation to flow dynamics, of fluid or gaseous media or mixtures of the two. In the context of this invention, electrolytic treatment with relation to flow dynamics means the combination of the production of at least one rotating fluid eddy and the eversion of the eddy by means of electrolysis taking place in the reactor facility. The guided fluid eddy is efficiently treated, cleaned and disinfected by this combination in the reactor facility according to the invention. The invention further relates to a method for the electrolytic treatment, with relation to flow dynamics, of fluid media in the reactor facility according to the invention.