Abstract:
A liquid fuel reformer includes a fuel vaporizer which utilizes heat from an upstream source of heat, specifically, an electric heater, operable in the start-up mode of the reformer, and therefore independent of the reforming reaction zone of the reformer, to vaporize fuel in a downstream vaporization zone.
Abstract:
An apparatus for producing pulverulent poly(meth)acrylate in a reactor for droplet polymerization having an apparatus for dropletization of a monomer solution for the production of the poly(meth)acrylate having holes through which the monomer solution is introduced, an addition point for a gas above the apparatus for dropletization, at least one gas withdrawal point on the circumference of the reactor and a fluidized bed, and above the gas withdrawal point the reactor has a region having a constant hydraulic internal diameter and below the gas withdrawal point the reactor has a hydraulic internal diameter that steadily decreases.
Abstract:
The invention relates to distributing reactants more evenly across the interior space of a reactor vessel utilizing a distributor at the inlet end that initially directs the flow of reactants through a flange plate and a series of ring plates. The ring plates are physical spaced such that vapor along the wall of the inlet is mildly obstructed by the flange plate and the ring plates cause the vapor to alter course temper down any diverse velocities that may create hot spots within the catalyst bed.
Abstract:
The invention concerns a reactor for chemical vapour deposition from first and second precursor gases, the reactor comprising: —a chamber including top and bottom walls and a side wall linking the top and bottom walls, —a support intended for receiving at least one substrate, mounted inside the chamber, and —at least one system for injecting precursor gases, the system comprising an injection head including at least one nozzle for supplying the first precursor gas (41) in a main direction of axis A-A′, the at least one nozzle including: a precursor gas supply conduit (321), and an outlet member (322) generating a substantially annular 43 vortex flow (44) around axis A-A′.
Abstract:
A multi-tubular chemical reactor (400) includes an igniter (435) for the initiation of gas phase exothermic reaction within the gas phase reaction zones (409) of the tubular reactor units (408). A method of carrying out a gas phase exothermic reaction within the multi-tubular chemical reactor comprising: introducing gaseous reactants into a tubular reactor unit (408); initiating with radiant heat an exothermic reaction of the gaseous reactants within the reactor unit; and transferring heat produced by the exothermic reaction occurring within the gas phase reaction zone of the reactor unit to the gas phase reaction zone of one or more adjacent reactor units (408), thereby initiating an exothermic reaction within at least one adjacent reactor unit (408) until in such manner an exothermic reaction has been initiated in each of the plurality of spaced-apart reactor units (408).
Abstract:
The present invention is capable of precisely controlling a supply ratio of liquid and continuously supplying liquid at a constant rate by using partition plates for controlling the amount of liquid distribution.
Abstract:
A method is proposed for providing an oxygen-containing gas stream for the endothermic reaction of an initial stream comprising one or more hydrocarbons, having a predetermined oxygen concentration and a predetermined temperature, wherein a fluid fuel stream is combusted with a primary air stream at λ values of the primary air stream to the fluid fuel stream of from 0.6 to 1.2 to obtain a combustion gas stream, and a secondary air stream is admixed to the combustion gas stream to obtain the oxygen-containing gas stream for the endothermic reaction, with the predetermined oxygen concentration and the predetermined temperature of the oxygen-containing gas stream being adjusted via the flow rate and the temperature of the secondary air stream.
Abstract:
A device for distributing a fluid in a controlled manner, in particular for distributing a gas loaded with particles, the device comprising a pipe (1) provided with at least one inlet orifice (2) and with a series of outlet orifices (3) spread along the pipe (1) and cut in a side wall of this pipe, wherein at least one section (4) of the side wall, located downstream of at least one outlet orifice and limited by a section (5) of the edge of the outlet orifice (3), has a concave shape such that this section (5) of the edge of such outlet orifice (3) is positioned inside the pipe so that, when the device is in service, the flow direction of a fluid exiting such outlet orifice (3) and travelling along such deformed concave wall section (4) of the edge of this outlet orifice (3) is controlled by the shape of such section (5) of the edge.
Abstract:
A mixing device for a fuel reformer for mixing at least two fluids is provided. The mixing device includes at least a first plurality of holes which is arranged along a first row, and a second plurality of holes which is arranged along a second row. The mixing device can be used in a fuel reformer for converting hydrocarbon fuel into hydrogen rich gas by auto-thermal reaction process having a, preferably cylindrically shaped and double walled, housing with two side walls forming a reaction chamber of the fuel reformer, wherein hydrocarbon fuel and an oxidizing agent are mixed by the mixing device.
Abstract:
A process for preparing acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen, by first separately preheating the hydrocarbon gas and oxygen gas, and then reacting the gases and cooling the products rapidly. The reactor wall is blanketed with a purge gas stream, introduced through a plurality of feed lines. These feed lines deliver purge gas in a vector direction within a 10° angle of the main flow direction of the reactive gas stream. The purge gas is delivered at multiple stages relative to the main flow direction of the reactive gas stream, and the free cross section of the firing space available to the reactive gas stream, at the height of the feed lines of the purge gas stream, is approximately constant.