摘要:
Hydrogen peroxide is prepared by an auto-oxidation method via hydrogenation in a microreactor. A working solution containing a reactive carrier compound is hydrogenated with hydrogen in a microreactor and is subsequently auto-oxidized to produce hydrogen peroxide.
摘要:
A method is provided for placing high surface area catalyst material (320) within ceramic micro-reactors. The method comprises forming a first cavity (114) in a first green sheet (112) and disposing a high surface area catalyst material (320) within the first cavity (114). The first green sheet (112) is placed adjacent to a second green sheet 118 wherein the first cavity is surrounded by the first and second green sheets. At least one input channel (316) and one output channel (317) is provided to the catalyst material before the ceramic micro-reactor is fired.
摘要:
Hydrogen peroxide is prepared by an auto-oxidation method via hydrogenation in a microreactor. A working solution containing a reactive carrier compound is hydrogenated with hydrogen in a microreactor and is subsequently auto-oxidized to produce hydrogen peroxide.
摘要:
A test unit for the study of catalysts in short contact time reactions between a catalyst and at least one reagent, with a down transported flow reactor (4), with a load inlet (13, 13a, 13b) and a discharge outlet (14) linked with an admission inlet (15) to an upper chamber (39) of a separator (5) internally divided into an upper chamber (39) and a lower chamber (41) by a porous element (40) that is permeable to gases and impermeable to solid particles of catalyst, and a first preheater (1) provided with an outlet (2, 2a) connected with the inlet (13, 13a, 13b) of the reactor (4) via a load duct (42) in such a way that arranged between the outlet (2, 2a) and the load inlet (13, 13a, 13b) are some obturator means (3, 3a) in which the catalyst is heated to a desired temperature before they are loaded into the reactor (4).
摘要:
An object of the present invention is to increase the volume of production even with the use of a microreactor, and to improve the quality of reaction products. A chemical synthesis device with a microreactor having a microchannel includes a plurality of microreactors arranged in parallel; a raw material tank that stores a raw material; a pump that delivers the raw material; an inlet solenoid valve and an outlet solenoid valve disposed at the inlet and outlet sides, respectively, of each of the microreactor; a temperature sensor that detects the temperature in the microreactor; and a pressure gage installed at the outlet side of the pump. The chemical synthesis device controls, in connection with values detected by the temperature sensor and the pressure gage, the opening and closing of the inlet solenoid valve and the outlet solenoid valve as well as a rate of flow from the pump.
摘要:
The present invention provides steam reforming catalyst compositions containing Pd and Zn, and methods of steam reforming alcohols over a catalyst. Surprisingly superior results and properties of the present invention, including low temperature activity and/or low carbon monoxide output, are also described. Methods of making a steam reforming catalyst are also provided.
摘要:
An apparatus and methods are provided for heating and sensing the temperature of a chemical reaction chamber without direct physical contact between a heating device and the reaction chamber, or between a temperature sensor and the reaction chamber. A plurality of chemical reaction chambers can simultaneously or sequentially be heated independently and monitored separately.
摘要:
A device and method for the temperature control, concentration, volume measurement and transport of microfluidic volumes are provided. The device includes one or more heating elements having a resistive material that varies with temperature. The heating elements are formed into a laminar body that may be formed into a variety of geometries and/or easily married to a second body including micro-well plates, micro-centrifuge tubes and microfluidic circuits.
摘要:
An on-board fuel processor includes a microchannel steam reforming reactor (30) and a water vaporizer (40) heated in series with a combustion gas. The reformer (30) and the vaporizer (40) are both of a cross-flow panel configuration that allows for low combustion side pressure drop. Fuel is directly injected into the steam, and during a rapid cold start, both the combustion gas flow rate and the steam to carbon ratio are substantially increased relative to their steady state operating values. A rapid cold start can be achieved in under 30 seconds with a manageable amount of electric power consumption, removing impediments to use in automotive fuel cell applications.
摘要:
The present invention is directed to an apparatus and method for obtaining kinetic information for commercial-form catalysts using minimal catalyst material while approximating large-scale reactor hydrodynamics and heat and mass transfer.