33results about How to "Increased gas flux" patented technology

The invention relates to a device for treating organic smelly waste gas by utilizing coupled dielectric barrier discharge plasma and belongs to the technical field of organic smelly waste gas treatment process. The device comprises an upper air inlet distribution pipe, an upper air outlet collecting pipe, a lower air inlet distribution pipe, a lower air outlet collecting pipe, an upper discharging pipe air inlet, an upper discharging pipe air outlet, a lower discharging pipe air inlet, a lower discharging pipe air outlet, a bracket, a pedestal, a discharging pipe, a discharging pipe flushing system and a spraying system which is coupled in the upper air outlet collecting pipe and the lower air outlet collecting pipe. The coupled dielectric barrier discharge plasma has a compact structure, a good smelly pollution treatment effect and high energy efficiency, and can be widely applied to treatment on waste gas containing smelly substances such as benzene series, aldehyde, alcohol, carbon disulfide, organic amine and the like.

The invention discloses a filler assembly capable of eliminating amplification effect, which comprises a filler section, a filler clapboard, filler units, a filler support plate and a liquid redistribution board, wherein the filler clapboard partitions the filler section into a plurality of filler units, the liquid redistribution board is provided with open pores matched with the filler units, a weir is arranged around the open pores, the weir is provided with tooth gaps, and the open pores have the shapes similar to those of the filler units, and have small area. The assembly changes a filler tower into the plurality of filler units connected in parallel, and the vapor and liquid of the filler section are uniformly distributed and the wall flow effect is eliminated by matching the corresponding liquid redistribution board so as to ensure efficient and stable mass transfer effect and eliminate the amplification effect; the adverse initial distribution of a liquid distributor is corrected; by adopting a plug-in structure, the treatment capacity of the tower is only related to the number of the filler units, so the design of the tower is not limited by the scale; and the liquid distributor is replaced by a distribution board so as to reduce the requirements on tower height and mounting level and reduce the investment.

The invention relates to a preparation method of a hollow fiber oxygen-enriched membrane, which can effectively solve the problems of small specific surface area, small processing capacity, low efficiency, complicated preparation process, difficult operation, and difficulty in industrialized production of the membrane. The method is that the lining support pipe The outer surface of the hollow fiber oxygen-enriched membrane is prepared by needle electrospinning equipment, and then cleaned with deionized water and left to dry; it is prepared by mixing a hydroxyl-terminated polymer, a catalyst, a cross-linking agent and a first solvent Molding solution: Coat the casting solution on the porous substrate, firstly cure it at room temperature for 1-20 minutes, and then cure it at 50-80°C for 20-45 minutes, so that the silicone rubber can be completely cross-linked and form a hollow fiber oxygen-enriched membrane ; The present invention has higher gas flux, and the flux can reach 1.3m ³ /(m ² h), the process is simple, easy to operate, and suitable for industrial applications.

A semipermeable gas separation membrane is plasma deposited from liquid organosiloxane monomer having at least three silicon atoms and an alpha hydrogen atom. The semipermeable membrane may be employed as a gas-selective membrane in combination with a porous substrate.

The invention discloses a CO2 solid amine adsorbent and a preparation method thereof. The adsorbent comprises a mesoporous copper silicate nano-microsphere carrier (core-shell microspheres and hollowspheres); 3-aminopropyltriethoxysilane (APTES), N-(beta-aminoethyl)-gama-aminopropyltrimethoxysilane (AEAPS) and diethylenetriamine trimethoxysilane (TA) are bonded to the surfaces of copper silicatenanospheres by a grafting method to obtain the solid amine adsorbent which is applied to CO2 adsorption. The preparation method comprises the following specific steps: (1), synthesizing SiO2 nanospheres (200 nanometers) by an improved Stober method; (2), with the SiO2 microspheres as moulds, synthesizing copper silicate nanospheres by a hydrothermal method, and preparing CuSiO3@SiO2 core-shell nanosphere materials and CuSiO3 hollow nanosphere materials through different hydrothermal reaction times; (3), aminating the surface of copper silicate nanosphere carrier by using the APTES, the AEAPS and the TA. The adsorbent has the significant advantages of good heat stability, relatively low adsorption and desorption temperature, good adsorption and desorption cycle stability, relatively large adsorption capacity and the like, and can capture CO2 relatively efficiently.

The invention discloses a micro-filtration membrane for filtering PM2.5 particulate matters. The micro-filtration membrane comprises a composite layer formed by performing high-temperature hot-pressing on a separation layer and a supporting layer, wherein the separation layer is a PTFE (polytetrafluoroethylene) porous film formed by heating and stretching a PTFE base band and is in a three-dimensional stereoscopic crossed structure; the PTFE base band is formed by mixing fine PTFE powder and a lubricating agent such as petroleum ether into paste and performing extrusion by a die; the supporting layer is made of a polyethylene material and is in a meshed structure. The micro-filtration membrane has the largest pore diameter of 0.3 micron, is uniform in fiber fineness and uniform in thickness and has the porosity within 80-90 percent. According to the measurement, the gas flux can be 18000L/m<2>.min under the differential pressure of 0.1 bar, and the filtering effect is relatively obvious.

The invention provides a metal ion-doped graphene oxide composite film, and a preparation method and application thereof. The preparation method comprises the following steps: preparing a graphene oxide dispersion liquid, preparing a graphene oxide film on a porous ceramic carrier based on the graphene oxide dispersion liquid, and dipping the graphene oxide film structure in a metal salt solution so as to obtain the metal ion-doped graphene oxide composite film. According to the method, the graphene oxide film is formed through control, metal ion doping is conducted on the graphene oxide film in the corresponding metal salt solution through an impregnation method, effective ion-pi effect can be formed through the above technical scheme, and the metal ions are introduced into the graphene oxide film through the ion-pi effect, so the purpose of separating olefin from alkane is achieved; and the graphene oxide composite film has high gas flux and can effectively separate olefin and alkane, and the preparation method has characteristics of simple operation, low energy consumption and low investment.

The invention provides a convector and application thereof. The convector comprises a housing and a heat dissipation part. The housing is provided with a convection chamber communicated with the outside, the heat dissipation part comprises at least one heat dissipation piece, and the heat dissipation pieces are arranged in the housing so as to improve the temperature of gas in the convection chamber. The convection chamber is of a waisted type structure, so that the flux of the gas flowing into or out of the convection chamber is expanded.

The invention discloses a hydrogen isotope purification filter which comprises an upper shell and a lower shell, wherein a gas inlet is formed in the lower end of the lower shell; a rough filter element and a primary filter element are sequentially arranged in parallel along the gas inlet of the lower shell; a lower flange is arranged at an upper end ring of the lower shell; an annular boss matched with the lower flange is arranged on the upper wall of the lower shell; a secondary filter element is mounted on the annular boss; the secondary filter element is perpendicular to the primary filterelement; an upper flange parallel to the lower flange is arranged at the upper end ring of the upper shell; the lower flange is fixedly connected with the upper flange through a bolt; and a gas exhaust hole is formed in a side of the upper shell. The rough filter element, the primary filter element and the secondary filter element are sequentially arranged in the filter disclosed by the invention, particles and impurity gases are removed through the rough filter element and the primary filter element firstly, and deuterium tritium is separated and recycled through the secondary filter elementsecondly, so that the consequence that the particles and the impurity gases in gases after reactions of deuterium tritium fuel are adsorbed and filter element membrane holes are blocked can be avoided, the separation efficiency can be improved, and the service life of the filter elements can be prolonged.

The invention discloses an Rh@CuSiO3 nano-structure hydrogenation catalyst and a preparation method of same. The preparation method includes the steps of: 1) synthesizing silicate nanotubes in an ethanol-water system through a hydrothermal method, and controllably synthesizing cupric silicate nanotubes by adjusting experimental conditions; 2) supporting metal rhodium in the cupric silicate nanotubes through an impregnation method. In the Rh@CuSiO3 hydrogenation catalyst, the structural confinement effect of the core-sheath material and synergistic effect among the components are coupled, so that dispersity of active components is increased and interaction between the active components and the supporter is improved, thereby improving the catalytic performance in the hydrogenation. The catalyst has extensive application prospect.

The window-type corrugated packing sheet is mainly composed of a plurality of window-type corrugated packing units that circulate continuously. The left and right packing corrugations of each window-type corrugated packing unit are composed of four strip-shaped packing surfaces, and the four strip-shaped Every two adjacent strip-shaped packing surfaces in the packing surface intersect to form four ridgelines, and the down-turned upper window and the up-turned lower window are punched out on the four strip-shaped packing surfaces, and the bottom-turned upper window and the up-turned window are punched out. The lower window creates corresponding windows on the four strip packing faces. The window-opening corrugated packing sheet has good gas-liquid distribution effect, high heat transfer and mass transfer efficiency, and the pressure drop is significantly reduced; the window-opening corrugated packing sheet is easy to process and manufacture, and the phenomenon of interspersed and biting between the packing corrugated sheets is completely eliminated, and the production The speed is fast and the cost is significantly reduced. The window-type corrugated packing sheet can be widely used in packed tower equipment in the fields of chemical industry, chemical fertilizer, oil refining and petrochemical industry.