Abstract:
A method of treating a fluorocarbon feedstock includes generating, in a high temperature zone, an electrical arc between at least one cathode and at least one anode, generating in the high temperature zone and by means of the electrical arc and a plasma gas, a thermal plasma having a tail flame, allowing a fluorocarbon feedstock comprising at least one fluorocarbon compound to form a reactive thermal mixture with the thermal plasma tail flame, with the fluorocarbon compound dissociating into at least one fluorocarbon precursor or reactive species having fewer carbon atoms than the fluorocarbon compound, and cooling the reactive thermal mixture to form, from the fluorocarbon precursor or reactive species, a fluorocarbon product.
Abstract:
An improved method for the recovery of valuable organic compounds and deleterious air polluting chemicals from watercontaining process off-gases which comprises (1) contacting the process off-gases with a cold surface upon which a film of watermiscible liquid is maintained; (2) separating the noncondensible gases from the condensate which forms upon contact of the offgases with the cold wall and the water-miscible liquid; (3) separating the water-miscible liquid, water and condensate one from the other; (4) returning the water-miscible liquid to the first step to form the film on the cold wall and (5) recovering the condensates free of the water-miscible liquid and water.
Abstract:
Methods and apparatus are disclosed for mixing fluid streams of different compositions to minimize fluid condensation inside a mixing vessel where the objective is to produce an all-vapor mixture product.
Abstract:
In a method for reducing the amount of chloride components in cement clinker kilns at least a portion of the chloride-containing gases is removed from the kiln chamber. The gases are guided into a condenser whereby the gas temperature is maintained at a value above the condensation temperature of the chloride components. The chloride components are then cooled on cooled condensation surfaces of the condenser to a value below the condensation temperature. The cleaned gases are removed from the condenser and preferably returned into the kiln chamber. The condensation surfaces are continuously or discontinuously cleaned, and the removed chloride crystals are taken out of the condenser.
Abstract:
In accordance with the method of this invention, sulfur is removed from the gas stream exiting a sulfur storage tank through condensation and impingement of droplets and/or particles of elemental sulfur on the baffles and wall(s) of indirectly cooled scrubber-condenser. In order to effect the melting and return to the liquid sulfur storage tank of any sulfur collected on the baffles and wall(s) of the scrubber-condenser, said baffles and wall(s) are periodically heated, preferably with indirect steam. The scrubber-condenser apparatus of this invention is designed to effect the condensation and solidification of sulfur from the gas stream and to maximize the impingement of sulfur droplets and particles upon its baffles and internal wall(s) by repeatedly changing the flow direction of said gas stream. The scrubber-condenser is vertically mounted on a liquid sulfur storage tank and is connected directly to a vent located on top of the tank.
Abstract:
In this vacuum apparatus with a vacuum chamber and a vapor condenser installed therein, a refrigerant and a brine are supplied into said vapor condenser to thereby effect heat exchanges between both mediums and between both or either one of said mediums and a vapor to be generated.
Abstract:
In this vacuum apparatus with a vacuum chamber and a vapor condenser installed therein, a refrigerant and a brine are supplied into said vapor condenser to thereby effect heat exchanges between both mediums and between both or either one of said mediums and a vapor to be generated.
Abstract:
1,031,141. Condensing vapours and melting ice; distillation of water. DESALINATION PLANTS (DEVELOPERS OF ZARCHIN PROCESS) Ltd. April 6, 1964 [April 29, 1963], No.14103/64. Heading B1B. An apparatus for condensing vapour and melting ice in a vacuum chamber 102 and which is particularly applicable to the production of pure water by distillation comprises a rotatable, hollow, frusto-conical ice receiver 116,a drive 124 for rotating the receiver, an inlet 156 through which ice is introduced into the chamber, an opening 102 through which vapour is supplied into contact with the ice to condense the vapour and melt the ice, and in outlet 164 for removing the condensate and the melted ice from the chamber. The receiver 116 is supported by a sleeve 126 which is carried by the drive 124 and has a plurality of T-shaped supports 128 welded thereto, the power portion of the receiver 116 also being secured to the supports. Further support members 132 are also employed. To delay the movement of ice along the inclined surface of the receiver movable and pivotal plates 180 which have a plurality of perforations therein to permit vapour to contact the ice are suspended from horizontal members 182,184 and 186. The condensate flows along the inclined surface and through apertures 119 of a ring 121 which is mounted on a frusto conical support which provides drain means for the condensate and then passes through apertures 160 in the supports 128 to the outlet 164. Air is removed from the chamber by passing through a central opening 179 in the member 122 and flowing, as shown by arrows, to outlet 174. In a desalination apparatus (Fig. 1, not shown) sea water is introduced into a low pressure chamber 20 where it flash evaporates so producing vapour and forming pure ice. The vapour then passes to a compressor 54 and is delivered radially outwardly into the condensing chamber 102 through an annular outlet 58 by means of a rotating impellor 72. The brine with ice crystals therein is delivered to a separator washer where the ice is separated and washed free of salt and fed to inlet 156 of the condensing chamber.
Abstract:
An on-line measurement system for aerosol precursors emitted from industrial sources has three parts: online measurement part, pipeline cleaning part and automatic control part. The system includes: a particulate filter, high temperature intake pipe, two detergent tanks, an air pump, a cooling water pump, two detergent pumps, a condenser, an impinger, a cooling water meter, a salinity meter, a liquid flow meter, a gas flow meter, nitrogen cylinders, connecting pipes, control valves, computer control program etc. The aerosol precursor concentration Cg emitted from industrial sources is measured in the online measurement section. After every measurement, the pipeline is cleaned by the pipeline cleaning part to remove organic and inorganic residual. The automatic control part is controlled by the computer through a controlling program to control the working process of the system. The system has small area occupation, low investment cost, simple maintenance, convenient transformation and high applicability.
Abstract:
This disclosure describes energy efficient process to distill a process stream in a production facility. A process uses multiple effect evaporators, ranging from one evaporator to eight evaporators in each effect. The process arrangement shows an example of four effect evaporators, with a zero-effect evaporator having a single evaporator, a first-effect evaporator having a set of three evaporators, a second-effect evaporator having a set of three evaporators, and a third-effect evaporator having a set of evaporators to create condensed distillers solubles.