Abstract:
Methods and apparatus for processing materials employ two cylindrical members, one mounted within the other, defining an annular processing chamber. Preferably, the outer member is stationery (stator), while the inner rotates (rotor). The radial spacing between the stator inner surface and the rotor outer surface is equal to or less than the back-to-back radial thicknesses of the two laminar boundary layers formed on the two surfaces by the material being processed. The surfaces are made smooth, as by buffing to a finish of not more than 10 microinches. This structure inhibits formation of Taylor vortices in the processing passage, which cause unstable flow and consequent incomplete mixing. Preferably, the relative velocity between rotor and stator surfaces is at least 1.2 meters per second. The surfaces may be coated with catalysts. Transducers may be provided to apply processing energy, such as microwave, light or ultrasonic waves, through the stator wall.
Abstract:
A window allows the introduction of radiation energy into an annular processing chamber filled with a material to be processed. The chamber is formed from coaxial cylinder members rapidly rotating relative to one another. The chamber can be thin enough so that it is short compared to the penetration depth of the radiation through the material, providing even exposure of the material to the radiation. Also, eddies created in the material by the relative rotation enhances the even exposure. When the material inside the annular processing chamber is opaque, resulting in an insignificant penetration depth, the eddies still insure that the material is evenly exposed to the irradiation.
Abstract:
A composite material preparation system comprises a sealed reaction kettle for containing reactants and base materials; temperature and pressure detecting units for detecting the temperature and pressure inside the reaction kettle; and a heating unit for hydrothermally induced heating, based on the detected temperature and pressure values. The heating unit comprises an induction coil, an induction heating device, and a control mechanism for controlling the generation of an induction frequency of the induction heating device. The reaction kettle is located in the induction coil, both ends of the induction coil are mounted on an outer wall of the induction heating device, and the induction coil and the induction heating device have circulating water introduced inside. The device can prepare a composite material having good interface bonding, by utilizing induced heating under the premise of controllable temperature and pressure, and by utilizing the characteristic that the reactants themselves are heated.
Abstract:
The present invention discloses high pressure flow reactor vessels and associated systems. Also disclosed are processes for producing thiol compounds and sulfide compounds utilizing these flow reactor vessels.
Abstract:
A method for producing silicon fine particles of the present invention comprises: a step A of heating a precursor obtained by drying a mixture containing a silicon source and a carbon source by using a heating means in an inert atmosphere in a part formed by non-carbon substances 20, a step B of rapidly cooling a gas generated by heating the precursor in the inert atmosphere in the part formed by non-carbon substances 20, wherein at least one of the silicon source and the carbon source is liquid form.
Abstract:
The present invention discloses high pressure flow reactor vessels and associated systems. Also disclosed are processes for producing thiol compounds and sulfide compounds utilizing these flow reactor vessels.
Abstract:
Systems and methods for production of fuel for an internal combustion engine are described herein. Systems may include a plasma reformer and an internal combustion engine. The plasma reformer may produce a gas stream from the liquid feed. The gas stream may include molecular hydrogen and carbon oxides. At least a portion of the gas stream may be provided to the internal combustion engine.
Abstract:
A compact apparatus for the thermophysical catalytic resolution of liquid ammonia (pressure 10 bar) to produce hydrogen and nitrogen at the gas state. The apparatus uses three reactors placed in cascade, the first two reactors carrying out a thermocatalytic resolution, and the third reactor being a microwave resonator. Hydrogen adapted to supply alkaline fuel cells is obtained after crossing a scrubber. The equipment on board of the vehicles allows the generation of electric energy for car drive with a yield of 12,000 kJ/kg NH3.
Abstract translation:用于液体氨的热物理催化分解(压力10巴)以在气体状态下产生氢气和氮气的紧凑装置。 该装置使用三个级联的反应器,前两个反应器进行热分解,第三个反应器是微波谐振器。 在穿过洗涤器之后获得适于供应碱性燃料电池的氢。 车辆上的设备允许产生用于汽车驱动的电能,产量为12,000kJ / kg NH3。
Abstract:
In the method at least two electrodes (1, 2) and fluid reagents (4) are placed in the reaction vessel (3). At least one fluid substrate (11) of the fluid reagents (4) is capable of electric polarization. The reagents (4) are subjected to electric voltage in the form of a series of short electric pulses in such way that unipolar or bipolar electric field pulses are generated. The minimum duration time of electric pulses is from 50 ns and the maximum is 20 ms. The pause between the consecutive pulses is from 0.5 μs to 3 s. In the reactor at least two electrodes (1, 2) are connected to the electric power adaptor delivering unipolar or bipolar pulses of direct or alternating voltage which constitutes the source of the electric field with amplitude exceeding 100V/cm. The electrodes (1, 2) are placed in the reaction vessel (3) filled with fluid reagents (4) which contains at least one liquid substrate (11) capable of electric polarization.
Abstract:
A process for performing a chemical reaction between a plurality of chemical reactants in the presence of a catalyst, with at least a first reactant in a liquid phase and at least a second reactant in a gas phase, the first and second reactants mixing at least by interdiffusion. The process comprises supplying the reactants to a passage defined by a first surface and a second surface and optionally moving at least one of the first surface and second surface relative to each other. The reactants their mixture or reaction products form respective boundary layers against the first and second surfaces and the radial spacing between the first surface and second surface is equal to or less than the back-to-back radial thicknesses of the boundary layers.