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1076results about How to "Fast process" patented technology

Continuous aromatization and catalyst regeneration device and method thereof

ActiveCN101244969ANo temperature fluctuationsDoes not affect aromatization reactionMolecular sieve catalystsCatalyst regeneration/reactivationFluidized bedAromatization
The invention discloses and belongs to the chemical equipment field, which more particularly relates to a C1-C2 hydrocarbon or methanol aromatization and catalyst regeneration fluidized bed device (comprising an aromatization fluidized bed, a catalyst continuous regeneration fluidized bed, a pipeline used for catalyst transportation and a solid transportation device which are arranged between the two fluidized beds), and an aromatization catalyst which is suitable for the fluidized bed operations and the operation methods of aromatization reaction, catalyst regeneration and the device. The device, the catalyst and the method are used for regulating the coking status of the catalyst in an aromatization reactor at any time, thus achieving the aim of transforming the C1-C2 hydrocarbon or the methanol continuously and efficiently and generating aromatics with high selectivity. The C1-C2 hydrocarbon or methanol aromatization and catalyst regeneration fluidized bed device of the invention with adjustable catalyst activity and selectivity can improve the purity and yield of the aromatics, can lead the aromatization reactor operates continuously without stopping at the same time, can improve the strength of aromatics production, and lower the operation cost of the catalyst regeneration when stopping and restarting the whole system.
Owner:TSINGHUA UNIV

Catalytic module capable of removing formaldehyde at room temperature and preparation method thereof

ActiveCN105289298AImprove catalytic activity and purification efficiencyExcellent low temperature activity and removal efficiencyDispersed particle separationMetal/metal-oxides/metal-hydroxide catalystsChemistryLight source
The invention discloses a catalytic module capable of removing formaldehyde at room temperature and a preparation method thereof. The catalytic module comprises a skeleton carrier, coatings and catalyst layers, the skeleton carrier is a foam ceramic structure with three-dimensional pore channels, and the foam ceramic structure is internally provided with multiple pore channels which are interwoven into a net-shaped structure and arranged in any one of the X direction, the Y direction and the Z direction; the coatings are evenly coated on the surfaces of the pore channels in the foam ceramic structure and the other surface of the foam ceramic structure, and the catalyst layers are highly dispersed on the coatings. By means of the catalytic module capable of removing the formaldehyde at the room temperature and the preparation method thereof, at the room temperature and environment humidity, low-concentration formaldehyde can be oxidized into H2O and CO2, excellent low-temperature activity and removing efficiency are achieved, and the formaldehyde removing efficiency can be kept above 98 percent at the airspeed SV equal to 50,000 h<-1>. The preparation process is simple, the precious metal load is low, and accessory equipment such as light sources and heating are not needed. The catalytic module is suitable for air purification of closed and semi-closed spaces such as living rooms, office buildings, schools, dormitories, shopping malls, furniture markets and automobiles.
Owner:展宗城

Optimal design method for parameter of controllable cylinder type hydraulic buffer of semi-active suspension

The invention relates to an optimal design method for a parameter of a controllable cylinder type hydraulic buffer of a semi-active suspension. The optimal design method is characterized by adopting the following steps: 1), determining the damping ratio of a vehicular suspension system; 2), designing an open valve damping coefficient of a buffer speed property recover route; 3), determining the damping force of the reducer at a golden cutting speed point; 4), determining the design area of an adjustable damping hole of the reducer; 5), repeating the steps 2) to 4), calculating the adjustable damping hole area required by the thickness of the design valve block is calculated; repeating the steps 2) to 4) again, and calculating the minimum area of the adjustable damping hole; 6), determining the throttle seam pressure when a controllable valve of the buffer is opened at the first time; 7), determining the throttle seam pressure and the piston hole flow rate at the thickness designed speed point of the controllable valve throttle valve block; 8), determining the design thickness of the controllable valve throttle valve block. By adopting the design method, the design value of the valve parameter is exact and reliable; the repeatedly test and modification are avoided; the design cost of the controllable buffer is reduced; and the development cycle of the buffer is shortened.
Owner:SHANDONG UNIV OF TECH

Structural system of industrial low storied dwelling

The invention belongs to the field of building structures, and in particular relates to a structural system of an industrial low storied dwelling adopting modularized design, factory production and field mounting. The structural system of the industrial low storied dwelling comprises steel columns, steel girders, inter-column supports, steel girder horizontal supports, floor slabs, connecting nodes between the steel columns and a foundation, the connecting nodes between the steel columns and the steel girders, the connecting nodes between the steel columns and the inter-column supports, the connecting nodes between the steel girders and the steel girder horizontal supports, rigid connection nodes between the steel girders, the connecting nodes between the steel girders and the floor slabs, roofing surrounding systems and wall surface surrounding systems, wherein the steel columns are connected with the foundation through pre-embedded bolts; the steel columns are connected with the steel girders through bearing type high-strength bolts; the steel columns are connected with the inter-column supports through ordinary bolts; the steel girders are connected with the steel girder horizontal supports through the ordinary bolts; the steel girders are in fully rigid connection through continuous girders; the slabs are connected with the steel girders through male pins or special fasteners; and each of the roofing surrounding systems and the wall surface surrounding systems is of a block type. The structural system of the invention has the characteristics of clear stress of the structure, simple component connection, convenient and quick mounting, attractive appearance, good rationality and economical efficiency of unit steel amount, and is favorable for industrial production.
Owner:宝业集团浙江建设产业研究院有限公司

Composite janus microspheres based oil-water micro-emulsion separation method

The invention discloses a composite janus microspheres based oil-water micro-emulsion separation method. With the polymers Janus microspheres with different structures and different chemical compositions as a base material, the method comprises the following steps: adsorbing magnetic nano particles on the surfaces of the microspheres through electrostatic interaction, to obtain composite Janus microspheres with magnetic responsiveness; mixing and stirring the composite Janus microspheres and an oil-water emulsion; realizing demulsification and layering of the oil-water emulsion; after the layering, applying a magnetic field to realize efficient and quick oil-water separation. According to the method disclosed by the invention, the composite Janus microspheres serve as a particle surfactanton the oil-water interface to realize the demulsification and layering of the oil-water emulsion; by applying the magnetic field, efficient and quick separation of oil and water can be realized. Theoil-water micro-emulsion separation method disclosed by the invention has the advantages of simplicity, quick process and easiness in condition control, and is applicable to efficient separation of oil water formed by different types of large-area oil.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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