摘要:
Fuel pellets for use as targets in a device employing thermonuclear fusion by inertial confinement (Laser fusion) are manufactured from high polymer hydrocarbons in which bound hydrogen has been replaced with tritium. The required polymer is prepared by polymerizing monomer(s) which contain carbon and tritium. The hollow pellets are filled with thermonuclear fuel, e.g., a mixture of deuterium-tritium. To improve the sphericity of the pellets and the uniformity of their wall thickness, manufacture of the pellets is contemplated in the near-zero gravity of space.
摘要:
A process for removing sulfur dioxide (SO2) from a waste gas stream and recovering the sulfur values as sulfuric acid. The sources of the waste gas stream include effluent vent, flue or exhaust gases from power plants, sulfuric acid plants, ore roasters and solid waste incinerators. The gas is conducted through an apparatus having a column (10) containing a scrubbing packing material (20a) that is electrically conductive. Electrical contacts (32, 34) in contact with the packing material (20a) provide for the electrochemical reaction between the liquid phase and gas phase to absorb and react the SO2. The arrangement provides economy of operation, a useful byproduct and minimal environmental pollution.
摘要:
A process is provided for the chlorination of methane using hydrogen chloride as a source of chlorine. The process includes reaction steps operated in tandem in separate zones first comprising the reaction of perchloroethylene with hydrogen chloride and oxygen in the presence of an oxychlorination catalyst to give hexachloroethane and water, and second comprising the vapor phase reaction of hexachloroethane with methane feedstock to produce chlorinated methane, perchloroethylene and hydrogen chloride.
摘要:
A process is provided for the production of allyl chloride from three carbon atom hydrocarbons (propane and/or propylene) using hydrogen chloride or hydrogen chloride/chlorine mixtures as the chlorinating agent. The process includes reaction steps operated in tandem in separate zones first comprising the reaction of perchloroethylene with hydrogen chloride and oxygen in the presence of an oxychlorination catalyst to give hexachloroethane and water, second comprising the vapor phase reaction of hexachloroethane with propane/propylene feedstock to produce allyl chloride, perchloroethylene, and hydrogen chloride, and third isolating the products of the second step and repeating the first step using as starting materials the thus isolated perchloroethylene and hydrogen chloride.
摘要:
An internal combustion engine of the rotary type in which a pair of axially spaced combustion chambers (24a, 26a) are provided and a common ratchet or control mechanism (16) is positioned between the spaced combustion chambers. A pair of vanes (40, 42, 44, 46) are mounted in each combustion chamber with the vanes mounted on concentric shafts (36, 38) and free to rotate relative to each other. The ratchet mechanism positioned between the combustion chambers functions to resist counterclockwise movement of the vanes in one combustion chamber while allowing free clockwise movement thereof. The reaction forces generated in the ratchet mechanism from the two combustion chambers thus tend to cancel each other out. The central ratchet mechanism includes a housing which absorbs the reaction forces from both combustion chambers and which is free to rotate in the event that the reaction forces generated in the two combustion chambers become unbalanced.
摘要:
Carbon dioxide is separated from flue gas by scrubbing the gas with an aqueous solution of ammonia and salt, and the CO 2 is therefore released from the solution by heating. The scrubbing step is performed with a co-current stream of an aqueous solution of ammonia and a salt.
摘要:
A reactor with swing feeds is provided for oxychlorination. This reactor comprises multiple inlets with controls capable of introducing feed streams sequentially to the reactor. In one configuration, a feed stream comprises a paraffin or olefin hydrocarbon such as methane or ethylene, and a second feed stream comprises oxygen and hydrogen chloride. By segregating these feeds, combustion reactions can be minimized and yields of chlorinated components increased.
摘要:
A rechargeable battery is provided such that the positive electrode comprises lead, the negative electrode zinc, and the electrolyte is an aqueous solution of an alkali metal sulphate. Upon discharge, lead dioxide is reduced to lead sulphate and zinc is oxidized to zinc oxide. The reactions are reversed when the battery is charged.