Abstract:
An apparatus, system and method are disclosed for producing energy from the controlled reaction of an alkali metal with water. The method comprises forcing a liquefied alkali metal through a filter that separates the liquid alkali metal into alkali metal droplets. The alkali metal droplets comprise small enough particles that the alkali metal droplets completely react in water to produce heat, steam, an alkaline hydroxide and hydrogen gas before the alkali metal droplets reach the surface of the water. The filter separates the alkali metal droplets at a sufficient distance to avoid recombining of the alkali metal droplets. The alkaline hydroxide is reduced to an alkali metal and water which can be reused in the system.
Abstract:
A crystallizer system for forming solid crystals includes a vessel defining a cylindrical sidewall, a sparge device located at a bottom of the vessel, a plurality of impellers attached to a shaft, and a plurality of redistribution funnel assemblies vertically spaced apart. Each funnel assembly may be positioned underneath a respective impeller of the plurality of impellers. Each funnel assembly may include a funnel, a disc attached to the shaft such that the disc rotates with the impellers, and a channel extending radially inward from a location near the sidewall. The channel may be adapted to direct gas bubbles from the sidewall to a location near blade outer edges of the respective impeller A lower edge of the funnel and the disc may define a lower gap therebetween, such that solid particles falling from within the funnel are directed out of the lower gap when the disc is rotated.
Abstract:
A process for partial oxidation of hydrocarbons in a reactor, in which a stream comprising the hydrocarbon and a stream comprising the oxygen are fed to the reactor, wherein both streams fed to the reactor are conducted within the reactor separately through in each case one or more spatially separate lines, these lines having turbulence generators in their interior, owing to which, as a result of the imposed deflection of the flow direction downstream of turbulence generators, a highly turbulent flow field forms, and the streams are then mixed in a mixing zone after exiting from the lines and then converted in a reaction zone.
Abstract:
A method and apparatus for fluid-liquid reactions including gas-liquid and liquid-liquid reactions. The method and apparatus is suitable for mixing a fluid phase species and a liquid phase species to facilitate chemical reaction between said phases. The apparatus comprises a reactor vessel with a plurality of orificed plates and flow control means which initiates and maintains uniform mixing and efficient dispersion of a fluid-liquid mixture within the reactor vessel.
Abstract:
An apparatus, system and method are disclosed for producing energy from the controlled reaction of an alkali metal with water. The method comprises forcing a liquefied alkali metal through a filter that separates the liquid alkali metal into alkali metal droplets. The alkali metal droplets comprise small enough particles that the alkali metal droplets completely react in water to produce heat, steam, an alkaline hydroxide and hydrogen gas before the alkali metal droplets reach the surface of the water. The filter separates the alkali metal droplets at a sufficient distance to avoid recombining of the alkali metal droplets. The alkaline hydroxide is reduced to an alkali metal and water which can be reused in the system.
Abstract:
Apparatus for contacting a liquid reaction solution with a gas in separate reaction chambers within a single reaction vessel wherein the liquid reaction solution is continuously circulated between a first reaction chamber and a second reaction chamber within the reaction vessel but providing at least two side-by-side reaction chambers in open flow communication at their upper and lower ends with a gas supply means associated with each said chamber for introducing a gas in a finely divided form into the lower ends of each said chamber, and said gas supply means including flow control means whereby the rate of upward flow of gas in one of the chambers is greater than the rate of upward flow of gas in the other chamber so as to lower the density of the liquid reaction solution in the one chamber and provide continuous upward flow of liquid reaction solution and gas in the one chamber and downward flow of liquid reaction solution countercurrent to the flow of gas in the other chamber. The process and apparatus are particularly adapted for continuously carrying out two distinct chemical reactions between a liquid reaction solution and two different gases in a single reaction vessel, such as a catalytic oxidation-reduction process for removing hydrogen sulfide gas from a process gas stream.
Abstract:
Spheroidal polymer beads having a uniform size are prepared by polymerizing uniformly sized monomer droplets formed by the vibratory excitation of a laminar jet of monomeric material flowing in a continuous liquid medium containing a suitable suspending agent. For example, a laminar jet of a monomer mixture comprising a monovinylidene aromatic such as styrene, a polyvinylidene aromatic such as divinylbenzene and a polymerization initiator can be subjected to vibratory excitation and the resulting monomer droplets polymerized to yield copolymer beads having a narrow particle size range distribution. The resulting copolymer beads can be employed to prepare high yields of ion exchange resins exhibiting superior properties, particularly in continuous ion exchange operations.
Abstract:
Methods for producing improved, thermally-stable polyethylene terephthalate resins are provided. Polyethylene terephthalate resins are provided that can be fabricated into products such as carbonated beverage containers with a minimum of degradation products such as acetaldehyde preferably by rapidly polymerizing a prepolymer from an i.v. of about 0.2 to an i.v. of at least about 0.7.
Abstract:
Apparatus for conducting a continuous, pressurized liquid-state reaction while maintaining internal recycle. The apparatus has a perforated barrier plate which separates a reaction zone from a reboiler zone and has a by-pass conduit which connects these two zones. Control devices maintain the liquid levels in the reaction and reboiler zones. A heater in the reboiler zone evolves vapors in that zone, which vapors return to the reaction zone through the perforated barrier plate.
Abstract:
Provided are a sparger including: a disc-shaped body; and a first hole and a second hole having different sizes from each other provided in the body, wherein a diameter of the second hole is smaller than a diameter of the first hole, and a reactor comprising the sparger.