Abstract:
There is disclosed a permselective membrane reactor which efficiently forms hydrogen by use of a water-gas shift reaction and which is excellent in an aspect of manufacturing cost. In a permselective membrane reactor, a permselective membrane is a Pd membrane or a Pd alloy membrane, and a catalyst layer includes a first catalyst layer on the side of the permselective membrane and a second catalyst layer disposed apart from the permselective membrane. The first catalyst layer has a noble metal-based catalyst, and the second catalyst layer has an iron-based catalyst.
Abstract:
There is provided a zeolite separation membrane-provided article having gaps or pores larger than pores inherent to zeolite crystals and controlled within an appropriate range and being capable of achieving both high permeability and high separability for components with small difference in adsorption properties or a component having a smaller molecular diameter than the diameter of the pores, a method for producing the same, a method for separating mixed fluids, and a device for separating mixed fluids. The zeolite separation membrane-provided article is provided with a zeolite membrane having an N2 gas permeation speed at room temperature of 1.0×10−6 mol·m−2·s−1·Pa−1 or more and a permeation speed ratio of 1,3,5-trimethylbenzene/N2 at room temperature of 0.17 or more and being free from dyeing caused by the impregnation with Rhodamine B.
Abstract:
Provided is an internal combustion engine system (1) capable of obtaining sufficient quantity of ethanol by separating a gasoline-ethanol composite fuel to gasoline and ethanol without being affected by components of gasoline. The internal combustion engine system (1) includes a composite fuel storing tank (2), a separation membrane (3) configured to separate a composite fuel to a gasoline component and an ethanol component, and a supplying unit (9) configured to supply the gasoline component and the ethanol component to an internal combustion engine respectively according to operation conditions. The separation membrane (3) is prepared to permeate aromatic hydrocarbons together with ethanol.
Abstract:
A method for producing a carbon membrane of the present invention is a production method where a carbon membrane obtained by subjecting a carbon-containing layer to thermal decomposition in an oxygen inert atmosphere while sending a gas mixture containing an oxidizing gas thereinto is thermally heated. The carbon membrane is subjected to a heating oxidation treatment with controlling the ratio of the flow rate of the gas mixture to the areas of the carbon membrane to 0.5 cm/min. or more to control (temperature ° C.)2×time (h)/10000, which is the relation between the temperature of the gas mixture and the flow time, to 9 to 32. This enables to obtain a carbon film which selectively separates alcohols having 2 or less carbon atoms from a liquid mixture of the alcohols having 2 or less carbon atoms and organic compounds having 5 to 9 carbon atoms.
Abstract:
A permselective membrane reactor is provided, including a reactor tube having a gas inlet at one end and a gas outlet at the other end thereof. A separator tube is disposed in the reactor tube and has a permselective membrane selectively permeable to hydrogen on a surface thereof and a discharge outlet for passing separated gas through the permselective membrane. The permselective membrane reactor also includes a layer comprising a reforming catalyst that promotes reforming of ethanol, so that β, defined by the following equation, is in a range of 0.05 to 20: β=a/b wherein a denotes the volume of the reforming catalyst layer [cm3], and b denotes the area of the permselective membrane [cm2].
Abstract translation:提供了一种选择性选择性膜反应器,包括一端具有气体入口的反应器管和在另一端的气体出口。 分离管设置在反应器管中,并且具有在其表面上选择性地渗透氢气的选择性选择膜和用于使分离的气体通过选择性渗透膜的排出口。 选择性选择性膜反应器还包括包含促进乙醇重整的重整催化剂的层,使得由下列等式定义的β在0.05至20的范围内:<?in-line-formula description =“In-line 公式“end =”lead“?> beta = a / b <?in-line-formula description =”In-line Formulas“end =”tail“?>其中a表示重整催化剂层的体积[cm3] b表示选择渗透膜的面积[cm2]。
Abstract:
It is disclosed a plasma discharging electrode device generating non-equilibrium plasma for treating a gas. The device has a substrate comprising an integrated sintered ceramic body; an electrode embedded in said substrate; and a catalyst supported by said substrate and accelerating the reaction of the gas. The substrate has a surface portion whose porosity is higher than that of a portion in the vicinity of the electrode in the substrate.
Abstract:
There is disclosed a permselective membrane type reactor which efficiently forms hydrogen by use of a water-gas shift reaction and which is excellent in an aspect of manufacturing cost. In a permselective membrane type reactor 100, a permselective membrane 3 is a Pd membrane or a Pd alloy membrane, and a catalyst layer 4 includes a first catalyst layer 4a on the side of the permselective membrane 3 and a second catalyst layer 4b disposed apart from the permselective membrane 3. The first catalyst layer 4a has a noble metal-based catalyst, and the second catalyst layer 4b has an iron-based catalyst.
Abstract:
There are disclosed a selective permeation membrane reactor which includes a selective permeation membrane having an excellent permeation performance and a separation performance with suppresses of methanation reaction of CO2 contained in hydrogen-containing gas to efficiently perform CO methanation reaction and manufacture highly pure hydrogen, and a method of manufacturing a hydrogen gas. The selective permeation membrane reactor includes a CO reducing unit for reducing carbon monoxide contained in concentrated hydrogen-containing gas; and the unit having a methanation catalyst layer which performs a methanation reaction to reduce carbon monoxide contained in the concentrated hydrogen-containing gas, and a reaction temperature control section for controlling temperature of the catalyst layer at 250° C. or more and 350° C. or less, thereby selectively treating carbon monoxide. As the methanation catalyst, Ru carried by a carrier made of alumina may be used.
Abstract:
In a pattern matching method, the input pattern of a character is compared with each of a plurality of standard patterns to detect similarities and differences by counting the number of pattern elements which are or are not matched with each other. To do this, a high-speed comparator stores a plurality of comparing data in a memory, which is driven by a clock pulse train. The memory produces a plurality of sequence signals during each time interval when the clock pulses of a number responding to a plurality of comparing data are applied thereto. The first or last produced sequence signal is detected from among the plurality of sequence signals and is used to extract the maximum or minimum data.
Abstract:
A permselective membrane type reactor 100 comprises: a cylindrical reaction tube 1 having a gas inlet 11 at one end and a gas outlet 12 at the other end, a cylindrical, bottomed, separation tube 2 inserted into the reaction tube 1, which is made of a porous material and has a permselective membrane 3 at the surface, and a catalyst layer 4 provided between the reaction tube 1 and the separation tube 2, for promotion of chemical reaction. The reactor 100 further comprises, at a location apart from the permselective membrane 3, an oxygen-containing gas feeding section 20 which extends in the gas-flowing direction of the reaction tube 1 and feeds an oxygen-containing gas from multiple positions to the catalyst layer 4 in the gas-flowing direction.