Patent classifications
B01J2219/1215
FERROMAGNETIC-PARTICLE MANUFACTURING APPARATUS
A ferromagnetic-particle manufacturing apparatus includes: a single mode cavity that resonates with a microwave of a predetermined wavelength; a microwave oscillator electrically connected to the single mode cavity and configured to introduce the microwave of a predetermined wavelength into the single mode cavity; a pipe disposed to pass through an inside of the single mode cavity, the pipe being formed of a dielectric material; a pump configured to introduce, from one end of the pipe, an alkaline reaction liquid containing metal ions of a ferromagnetic metal; an impedance measuring device configured to measure an impedance of the single mode cavity; and a pump-flowrate deciding unit configured to decide, based on a measurement result of the impedance measuring device, a pump flowrate by which the impedance of the single mode cavity becomes a predetermined value or more; wherein the pump is configured to introduce the reaction liquid at the pump flowrate decided by the pump-flowrate deciding unit; and wherein ferromagnetic particles are generated by reacting the reaction liquid.
Pressure stepped microwave assisted digestion
An instrument and method for high pressure microwave assisted chemistry are disclosed. The method includes the steps of applying microwave radiation to a sample in a sealed vessel while measuring the temperature of the sample and measuring the pressure generated inside the vessel and until the measured pressure reaches a designated set point, opening the vessel to release gases until the pressure inside the vessel reaches a lower designated set point, closing the vessel, and repeating the steps of opening the vessel at designated pressure set points and closing the vessel at designated pressure set points to the sample until the sample reaction reaches a designated high temperature. The designated set points can controllably differ from one another as the reaction proceeds. Microwave energy can be applied continuously or intermittently during the opening and closing steps. The apparatus includes a microwave cavity, a microwave transparent pressure resistant reaction vessel in the cavity, a cap on the reaction vessel, a pressure sensor for measuring pressure in the vessel, a temperature sensor, and means for opening and closing the cap at predetermined pressure set points measured by the pressure sensor to release pressure from the vessel.
STRUCTURE OF INTEGRATED PHOTOCHEMICAL REACTOR
A photochemical reactor (1) having a hollow container body (10) having a side wall (11) made of a material arranged to contain an excited luminous plasma with electromagnetic fields and defining a closed excitation chamber (12) in which, in use, an excitable material (15) is present in such a way to obtain a discharge of the excited luminous plasma by microwave irradiation. The hollow container body (10) is provided with at least a hollow (20) that protrudes into the excitation chamber (12) and at least a microwave radiation source positioned, in use, in the hollow (20), and arranged to emit radiations in such a way to excite the excitable material (15) producing a luminous plasma.
WAVE MODES FOR THE MICROWAVE INDUCED CONVERSION OF COAL
A system for converting hydrocarbon materials into a product includes a hydrocarbon feedstock source, a process gas source, an energy generator, and a cylindrical reaction chamber. The reaction chamber has a conductive inner surface that forms a resonant cavity. The resonant cavity is configured to support a standing TM010 electromagnetic wave. The reaction chamber is also configured to receive feedstock from the feedstock source, process gas from the process gas source, and convert the feedstock into a product stream in the presence of the TM010 electromagnetic wave.
Heavy fossil hydrocarbon conversion and upgrading using radio-frequency or microwave energy
Conversion of heavy fossil hydrocarbons (HFH) to a variety of value-added chemicals and/or fuels can be enhanced using microwave (MW) and/or radio-frequency (RF) energy. Variations of reactants, process parameters, and reactor design can significantly influence the relative distribution of chemicals and fuels generated as the product. In one example, a system for flash microwave conversion of HFH includes a source concentrating microwave or RF energy in a reaction zone having a pressure greater than 0.9 atm, a continuous feed having HFH and a process gas passing through the reaction zone, a HFH-to-liquids catalyst contacting the HFH in at least the reaction zone, and dielectric discharges within the reaction zone. The HFH and the catalyst have a residence time in the reaction zone of less than 30 seconds. In some instances, a plasma can form in or near the reaction zone.
Microwave irradiating and heating device
A microwave irradiating and heating device including a reaction furnace for containing a sample material to be irradiated with microwave and to be heated, a lid provided for the reaction furnace and having a single hole, a microwave irradiating source for emitting a microwave, the microwave irradiating source being disposed outside the reaction furnace, and a rotated quadric surface mirror for reflecting the microwave emitted from the microwave irradiating source into the reaction furnace through the hole of the lid, the rotated quadric surface mirror being disposed above the reaction furnace.
INDEPENDANT HEATING OF SAMPLES IN A SAMPLE HOLDER
There is described a method for heating a sample material in a sample holder, the method comprising receiving the sample holder in a heating chamber of a heating system, the sample holder having at least one sample recipient with the sample material therein; dynamically forming an individual mini microwave cavity around the sample recipient; and applying microwaves generated by at least one microwave generator directly to the sample.
MICROWAVE-ASSISTED PEPTIDE SYNTHESIS
An instrument and method for accelerating the solid phase synthesis of peptides are disclosed. The method includes the steps of deprotecting a protected first amino acid linked to a solid phase resin by admixing the protected linked acid with a deprotecting solution in a microwave transparent vessel while irradiating the admixed acid and solution with microwaves, activating a second amino acid, coupling the second amino acid to the first acid while irradiating the composition in the same vessel with microwaves, and cleaving the linked peptide from the solid phase resin by admixing the linked peptide with a cleaving composition in the same vessel while irradiating the composition with microwaves.
MICROWAVE IRRADIATING AND HEATING DEVICE
A microwave irradiating and heating device including: a reaction furnace containing a sample material to be irradiated with a microwave passed through an opening and to be heated; a microwave irradiating source disposed outside the reaction furnace; a rotated quadric surface mirror reflecting microwave emitted from the microwave irradiating source toward the opening, and disposed above the reaction furnace; a lid for the opening, at least a portion of the lid made from dielectric to transmit microwave reflected on the rotated quadric surface mirror into the reaction furnace; wherein an angle of incidence of the microwave, reflected on the rotated quadric surface mirror and irradiated at the portion of the lid made from the dielectric, is at an angle causing a polarized wave of the microwave to pass through the portion.
CHEMICAL REACTION APPARATUS
In order to suppress discharge of an unreacted content in a chemical reaction apparatus for irradiating a content with microwaves, a chemical reaction apparatus includes: a horizontal flow-type reactor in which a liquid content horizontally flows with an unfilled space being provided thereabove; a microwave generator that generates microwaves; and a waveguide that transmits the microwaves generated by the microwave generator to the unfilled space in the reactor, wherein the inside of the reactor is partitioned into multiple chambers to by overflow-type partition plates and that allow the content to flow thereover and an underflow-type partition plate that allows the content to flow thereunder.