摘要:
A method of producing a high pressure gas is disclosed and which includes providing a container; supplying the container with a liquid such as water; increasing the pressure of the liquid within the container; supplying a reactant composition such as a chemical hydride to the liquid under pressure in the container and which chemically reacts with the liquid to produce a resulting high pressure gas such as hydrogen at a pressure of greater than about 100 pounds per square inch of pressure; and drawing the resulting high pressure gas from the container.
摘要:
An apparatus and method for reacting on material by means of intense radiation employed to change the physical and, in certain instances, the chemical characteristics of such material. In one form, an intense radiation beam is directed into a cavity of a die or support for a small quantity of material to be reacted on and the intense heat of the beam as well as the shock wave generated in the material in the die cavity by the rapid heat of the beam react on such material to change its physical characteristics. In another form, two or more intense radiation beams, such as generated by one or more lasers or electron guns as intense pulses of radiation, are directed against a particle or pellet of material directed along a predetermined path into a reaction chamber, intensely heat and transmit shock wave energy thereto from opposite directions which shock waves collapse against the material transforming it into another form. In still another form of the invention, pellets or small containers of material to be reacted on are supported by filaments, rods or other structures disposed in a reaction chamber and are reacted on by one or more intense radiation beams. In yet another form, one or more intense pulses of radiation are directed against a solid member compressing a quantity of material in a die and generate one or more shock waves in such solid member which are transmitted therethrough to the compressed material. The pellet or particles may comprise carbon which is converted to diamond by the intense heat and force of the shock wave or shock waves or other material including such other material mixed with carbon.
摘要:
Nitric oxide is prepared by the oxidation of ammonia produced by the Haber-Bosch synthesis technique by (a) vaporizing and heating water to superheated steam; (b) electrolyzing the superheated steam in a high temperature electrolysis cell to oxygen and hydrogen; (c) reacting said hydrogen with atmospheric nitrogen thereby forming ammonia by the Haber-Bosch process; and (d) oxidizing said ammonia to nitric oxide and water vapor in the anode of said electrolytic cell with the oxygen produced by said electrolysis.
摘要:
The speed of chemical reaction between liquid and solid particle reactants is materially increased by a process wherein the reactants are charged to a rotating chamber provided with perforated sidewalls, the size of the perforations being less than the size of the particles. The particles are propelled against the walls of the chamber under the action of a centrifugal force created by the rotation of the chamber and are caused to form a continuous layer of particles on the walls of the chamber. The liquid reactant under the action of the same centrifugal force is caused to be propelled into contact with the particle layer and move radially therethrough to react chemically with the particles. The reaction products are then discharged from the chamber through the perforations in the sidewalls. In a preferred embodiment of the invention, spent iron electrolyte solutions withdrawn from iron plating baths are regenerated by centrifugally contacting the electrolyte with a bed of iron particles centrifugally fixed on the perforated sidewalls of a rotating reaction chamber.
摘要:
Modifications are made to the standard process for the manufacture of ammonia and related compounds, resulting in lower operating costs through reduced total energy consumption. In one aspect of the invention, this is achieved by directing ammonia gas through one feed line, and carbon dioxide gas and steam through another feed line, into a closed reaction chamber to form ammonium carbonate. The formation of this solid compound results in a reduced pressure in the chamber. This reduced pressure can be used to drive heat engines in the reactant feed lines. In another aspect of the invention, the cost of running the potassium carbonate loop while the rest of the system is down is reduced by constructing an alternate pathway along part of the loop. The carbon dioxide gas and water vapor formed by the heating of the potassium bicarbonate flow through a heat engine and are cooled. The cooled water vapor and carbon dioxide gas are then recycled. The reactant gases may be liquified and revaporized in the event of reactor shutdown, and heat-exchange means may be associated with the system to provide at least a portion of the heat of vaporization of the liquified reactants. The heat-exchange means can thus produce a refrigerating fluid as a result of the vaporization of the reactants.
摘要:
A host liquid, such as a liquid metal, which is "seeded" with small bubbles of an inert gas, is maintained in a sealed chamber at an ambient temperature of about 100.degree. K. above the melting point of the host liquid, and at a static pressure ranging from 1 to 100 bars. A substance (for example carbon) which is capable of being allotropically transformed from a first form thereof (for example graphite) to a second form (for example diamond), is placed in the host liquid, which is then subjected to a time-varying acoustical pressure applied, for example, by a plurality of solid acoustical horns, which cause at least certain of the bubbles of inert gas to expand and then suddenly to collapse in a cavitation zone located substantially centrally of the chamber. By maintaining the host liquid at a pressure and temperature sufficient to cause the Hugonoit curve of the liquid to intersect a predetermined area of the phase diagram of the substance, the shock waves produced by the collapsing bubbles can be caused to envelop particles of graphite and to instantaneously transform them into diamond particles. The host liquid can be selected from a group consisting of aluminum, tin, gallium, thallium and indium, and alloys thereof; and the substance to be transformed may be selected from the group consisting of carbon, boron nitride and zinc sulphide.
摘要:
The method of the present invention utilizes high pressure, near-supercritical CO2 within a pressure vessel to process filamentary nanocarbon to debulk, disperse, purify, surface treat, pre-impregnate, and micronize the carbon nanofibers. In accordance with the invention, near-supercritical CO2 is utilized within a pressure vessel to effect the desired process upon filamentary nanocarbon. For example, a quantity of filamentary nanocarbon can be effectively debulked, de-agglomerated and disentangled by agitating the mixture within the pressure vessel. When the CO2 is released from the pressure vessel, the filamentary nanocarbon exhibits a dramatic reduction in volume. Other nanofiber processes can be performed such as surface treating and pre-impregnation by introduction of the desirable species into the near-supercritical CO2 prior to processing. Purification processing can additionally be performed by introducing a co-solvent into the near-supercritical CO2.
摘要:
A method of producing a high pressure gas is disclosed and which includes providing a container; supplying the container with a liquid; increasing the pressure of the liquid within the container; supplying a reactant composition to the liquid under pressure in the container and which chemically reacts with the liquid to produce a resulting high pressure gas; and drawing the resulting high pressure gas from the container.
摘要:
The mixing state of static mixing is optimized, so that it is possible to form silver halide emulsion particles in small sizes with an excellent mono-dispersion characteristic. An aqueous solution of haloid salt is blown out from a first nozzle into a mixing chamber as a rectilinear flow of turbulent flow, and before eddy viscosity formed when the rectilinear flow is blown out from the first nozzle of a small diameter to the mixing chamber of a greater diameter reaches a maximum, or before a maximum flow speed of the rectilinear flow is reduced to {fraction (1/10)} or below, an aqueous solution of silver nitrate is blown out from a second nozzle as a crossflow of turbulent flow which crosses the rectilinear flow at a substantially right angle and is entrained by the rectilinear flow, so that the two solutions are allowed to mix and react with each other instantaneously, and a liquid resulting from the mixing and reaction is discharged from a discharge duct.