159results about How to "Efficient mass transfer" patented technology

An apparatus for the countercurrent contacting of a gas and downflowing solid particles includes a housing and a plurality of baffles positioned within the housing. The baffles are arranged in at least first and second vertically spaced levels in successively lower position, each of the first and second levels including a row of at least two baffles oriented parallel to one another and inclined from horizontal so as to facilitate movement of the solid particles and provide the maximum area for flow. Baffles are oriented so as to laterally shift the direction of downflowing particles transversely as the particles move from one level to the next lower level and avoid channeling of the phases. The number of baffles, length and spacing is optimized to provide maximum interfacial area for interaction between the phases.

A fermenter can have at least one hollow fluid conduit disposed at least partially within a vessel. An external circumference of the hollow fluid conduit and an interior circumference of the vessel can define a downward flow path through which a multi-phase mixture including a liquid media and compressed gas substrate bubbles flows. An interior circumference of the hollow fluid conduit can defined an upward flow path which is in fluid communication with the downward flow path. The multi-phase liquid can flow through the upward flow path and exit the fermenter. Cooling may be provided in the hollow fluid conduit or the vessel. One or more backpressor generators can be used to maintain a backpressure on the fermenter. One or more fluid movers can be used to variously create an induced and / or forced flow in the downward and upward flow paths.

The invention relates to an inner loop reactor with reacting and separating functions. The reactor comprises a rising pipe, a downspout, a solid feeding port, a hydrocyclone inlet, an anti-flowing dead zone internal component, a liquid inlet, an air inlet, an air outlet, a flow guide drum, an air flow guide cone, an air vent, an overflow port, a hydrocyclone, a bottom flow port, an air-liquid integrated distributor and a liquid outlet, wherein the hydrocyclone is arranged at the lower part of the downspout of the loop reactor; the air flow guide cone and the air vent exist in the downspout, so that air can be prevented from entering the hydrocyclone; after the slurry enters the hydrocyclone, the solid-containing slurry enters the rising pipe through the bottom flow port, and clean products without solids flow out from a top flow port; and an external valve is used for controlling the flow of the clean products. The inner loop reactor has a simple structure, is low in cost, requires no special liquid-solid separating device, can simultaneously perform air-liquid-solid three-phase reaction, mass transfer and separation, and is suitable for the air-liquid-solid three-phase reaction taking solid grains as catalysts.

A multi-disc air diffuser according to the present invention comprises a bolt having a vent groove formed in a longitudinal direction thereof; a plurality of discs, each of the discs having a bolt joint section to be passed through the bolt, an air room for holding the air supplied through the vent groove, and a nozzle section having a plurality of nozzles which are arranged in an end part of the air room at a regular size and intervals, wherein the lower surface of each of the discs is more than the upper surface thereof and the outer circumference surface of each of the discs is formed to be inclined; and a backflow prevention section for joining to an end part of the bolt to adhere closely the discs to one another, connecting the vent groove to an air supply pipe, and having a check valve to prevent the air flowing backward from the vent groove to the air supply pipe.

The invention relates to a mechanical and biochemical reaction device applied to coarse pulp of kitchen waste. A material outlet is formed in the bottom of a reaction cabin; more than three nozzles for spraying and stirring the materials at high pressure are respectively arranged on the lower parts of two side plates of the reaction cabin in a running direction of the materials; a two-shaft conveying mechanism is arranged on the lower part of the reaction cabin; an output shaft of a driving motor is connected with an input shaft of a gear reversing mechanism through a coupler; an input shaft and an output shaft of the gear reversing mechanism are connected with a first main shaft and a second main shaft which are provided with helical blades; the first main shaft and the second main shaft respectively penetrate through the reaction cabin and are mounted on a support base through a bearing; the support base is mounted on a frame; a three-level relay material circulation conveying mechanism comprises a first-level lifting mechanism, a second-level lifting mechanism and a third-level lifting mechanism which are arranged in sequence and connected upwards. The mechanical and biochemical reaction device applied to coarse pulp of kitchen waste, disclosed by the invention, has the characteristics of compact structure, easiness in operation and capability of improving the hydrolysis and acidification efficiency of the coarse pulp.