摘要:
A support carbon material able to support a catalyst metal in a highly dispersed state and resistant to the flooding phenomenon and with little voltage drop even at the time of large current power generation under high humidity conditions and a catalyst using the same, specifically, a support carbon material for solid polymer type fuel cell use comprised of a porous carbon material which has a pore volume and a pore area found by the BJH analysis method from a nitrogen adsorption isotherm in an adsorption process of a radius 2 nm to 50 nm pore volume V A of 1 ml/g to 5 ml/g and a radius 2 nm to 50 nm pore area S 2-50 of 300 m 2 /g to 1500 m 2 /g and a ratio (V 5-25 /V A ) of radius 5 nm to 25 nm pore volume V 5-25 (ml/g) to said pore volume V A (ml/g) of 0.4 to 0.7 and a ratio (V 2-5 /V A ) of radius 2 nm to 5 nm pore volume V 2-5 (ml/g) to the same of 0.2 to 0.5 and a catalyst using the same.
摘要:
The present invention relates to an activated carbon produced by alkali-activating a raw coke or the heat treated product thereof produced by heating a raw coke under atmospheric pressure at a temperature of 550 to 900°C, with an alkali metal hydroxide, wherein the raw coke is produced by coking a feedstock composition at a pressure of 300 to 800 kPa and a temperature of 400 to 600°C. The feedstock composition comprises a first heavy oil with an initial boiling point of 300°C or higher, an asphalten content of 12 percent by mass or less, a saturate content of 60 percent by mass or more and a sulfur content of 0.3 percent by mass or less, produced as a residue resulting from vacuum-distillation of a petroleum-based oil and a second heavy oil with an initial boiling point of 150°C or higher and a sulfur content of 0.5 percent by mass or less, produced as a residue by subjecting a vacuum gas oil or desulfurized vacuum gas oil to fluidized catalytic cracking. The present invention relates also to an electric double layer capacitor comprising said activated carbon.
摘要:
The present invention relates to a raw coke produced by coking a feedstock composition at a pressure of 300 to 800 kPa and a temperature of 400 to 600°C, wherein the feedstock composition comprises a first heavy oil with an initial boiling point of 300°C or higher, an asphalten content of 12 percent by mass or less, a saturate content of 60 percent by mass or more and a sulfur content of 0.3 percent by mass or less, produced as a residue resulting from vacuum-distillation of a petroleum-based oil and a second heavy oil with an initial boiling point of 150°C or higher and a sulfur content of 0.5 percent by mass or less, produced as a residue by subjecting a vacuum gas oil or desulfurized vacuum gas oil to fluidized catalytic cracking, and to a needle coke produced by calcining said raw coke at a temperature of 800 to 1600°C.
摘要:
The present invention provides a high capacity hydrogen storage material in which a plural mesopore channels and fractal networks of nanopore channels communicating therewith and connecting to the micropores are formed in a microporous material, wherein a plural metal particles are formed on the surface of the mesopore and nanopore channels and of the micropores. In another embodiment, the present invention also provides a method for making the hydrogen storage material through oxidizing the microporous material so as to form a plural mesopore channels and fractal networks of nanopore channels, both of which are connected to the micropores to form a base for the deposition of metal particles capable of decomposing hydrogen molecules into hydrogen atoms. The high capacity hydrogen storage material is capable of increasing the capacity of hydrogen storage, and besides, the oxidizing process for making the hydrogen storage material is simple and has merits of saving cost.
摘要:
Activated carbon, which is produced from coconut shells, is impregnated with zinc and, in addition, optionally with copper, triethylenediamine and silver. The activated carbon impregnated in this manner depicts a filter material that is suited for the adsorption of pollutants from breathing gas. To this end, it has adsorption capacity properties similar to those of chrome-containing activated carbon, however, it can be stored longer than these without losses in quality. The activated carbon preferably contains 4 to 9 % by weight of zinc, 0 to 1 % by weight of copper, 0 to 2 % by weight of triethylenediamine and 0 to 1 % by weight of silver. It does not contain chrome, vanadium, molybdenum, cobalt nor nickel.
摘要:
It is a problem to be solved by the present invention to provide an oxidation catalyst which, in oxidation of a compound, can efficiently effect oxidation using oxygen in the air as an oxygen source and can be used repeatedly. The above-mentioned problem was solved by an activated carbon in which the BET specific surface area S determined by a nitrogen adsorption method and the amount of surface oxygen which will leave in the form of carbon monoxide O CO (% by weight) satisfy formula (I) 4000 CO . By using this oxidation catalyst, it is possible to oxidize a compound having an oxidizable carbon atom linked directly to an aromatic ring, including a heterocyclic ring, to a corresponding aldehyde or keto compound, or to oxidatively dehydrogenate a hydrogen-containing compound to form an unsaturated bond or a cyclic compound, or to oxidatively and dehydrogenatively form a nitrogen-containing heterocyclic ring from an aryl aldehyde and a compound having a pair of adjacent carbon atoms, one of the carbon atoms having an amino group and the other having an amino, hydroxyl or mercapto group.
摘要:
A ground kenaf core product obtained in a grinding treatment (10) is dissolved in 70% sulfuric acid in an acid-dissolution treatment 20 to give a saccharide phase (saccharide/sulfuric acid solution). Then this saccharide phase is separated from a lignin phase (lignin sulfate) in a centrifugation treatment (30). The saccharide phase is heated at 90 °C for about 2 hours in the presence of sulfuric acid in an acid-heating treatment (40). Then the saccharide (the residue) is diluted with water and filtered in a water-dilution/filtration treatment (50) until the filtrate becomes neutral. Next, the saccharide is washed with water and dried in a water-washing/drying treatment (60) followed by a baking treatment (70) to thereby give a saccharide carbide serving as an adsorbent A.
摘要:
L'invention propose un charbon actif ayant les caractéristiques suivantes :
indice CCl4 compris entre 120% et 190%, teneur en P2O5 au plus égale à 2 %, pH d'extraction supérieur à 7, densité apparente comprise entre 0,18 g/ml et 0,32 g/ml, et résistivité électrique inférieure à 1,5 Ohm.cm.
摘要翻译:活性炭是通过中和和热处理加热木材颗粒和磷酸,进一步处理的混合物获得。 因此独立权利要求中包括了:(1)一种活性炭,其具有以下特征:四氯化碳吸附指数= 120-190%; P 2 O 5含量≤2%; pH提取7(滤液在150ml自来水中5-10分钟,过滤沸腾10克活性炭之后获得的pH); 表观密度= 0:18至0:32克/毫升; 1.5 ohm.cm的电阻率; 和(2)将上述活性炭的用途。