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93results about How to "Short activation time" patented technology

Method for improving activation efficiency of fuel cell

ActiveCN105552405AFully activatedThe activation process is controllableFuel cellsActivation methodFuel cells
The invention provides a method for improving the activation efficiency of a fuel cell. The method comprises the following steps: under a normal operation of the cell, testing a cell polarization curve before activation by a voltage scanning method; carrying out forced discharge treatment on the cell under nitrogen for a cathode instead of air; testing the cell polarization curve by the voltage scanning method; introducing air at a low stoichiometric ratio for constant-voltage activation treatment for twice, and testing each cell polarization curve by the voltage scanning method after each activation treatment; and judging whether activation is finished or not according to the deviation degrees of two polarization curves. The method has the beneficial effects that with quick testing of the cell polarization curves by the voltage scanning method as a characterization method for the cell activation degree, the activation process is controllable; the treatment method employing the nitrogen for the cathode instead of air is beneficial to eliminating surface impurities of a catalyst and opening a closed hole and a semi-closed hole in a catalyst layer; the mass transfer ability is strengthened; and the activation method is simple to operate, short in activation time, low in fuel consumption, high in activation degree and controllable in activation process.
Owner:SUNRISE POWER CO LTD

Method for preparing activated carbon with high specific surface area through rapid activation under fluidization

The invention relates to a method for preparing activated carbon with the high specific surface area through rapid activation under fluidization. The method is characterized by comprising steps as follows: 1) a biomass raw material with the particle size ranging from 0.3 mm to 0.9 mm is selected, soaked in a chemical reagent for 3-6 h and dried in a constant-temperature drying box at the temperature of 100-150 DEG C after soaking; 2) after drying, the dried material is stirred or crushed to form particulate materials; 3) a fluidized bed or a spouted bed is used as an activation reactor, the activation reactor is heated to 700-800 DEG C, fluidizing gas is introduced, quartz sand and the particulate materials obtained in the step 2) are placed, activation is performed for 1-10 min, a mixture is discharged immediately after activation and washed to be neutral with water, and the activated carbon with the specific surface area being 1267-1359 m<2> / g is obtained. According to the method, a chemical activation method is combined with the fluidized bed technology, rapid activation preparation of the activated carbon can be realized, the activation time is short, the prepared activated carbon has the relatively high specific surface area, the energy consumption is effectively reduced, and the production cost is reduced.
Owner:TIANJIN UNIV OF SCI & TECH

Three major types of bacteria mixed liquid fermentation, solid yeast feed additive and preparation method thereof

The invention relates to three major types of bacteria mixed liquid fermentation, solid yeast feed additive and a preparation method thereof and belongs to the field of microbial fermentation. The mixed bacteria yeast is prepared from lactic acid bacteria (five types of strain), saccharomycetes (three types of strain) and bacillus (six types of strain) in a mixing and fermenting mode. The preparation method for the mixed bacteria yeast feed additive includes that firstly, cultivating into mother strain through test tube slant culture medium and test tube fluid medium; secondly, performing shaking table oxygen consumption culture, slant solid culture and anaerobic triangular flask culture, and fermenting into liquid feed additive in a fermentation tank or inoculating to solid fermentation to form the feed additive after fermenting in the fermentation tank. The mixed bacteria yeast feed additive prepared by the method is natural, safe, environmental friendly, rich in metabolite, high in nutritive value and capable of providing the probiotic group needed for the intestines and stomachs of livestock and poultry, preventing diseases, improving the immunity of the livestock and poultry, reducing the harmful gas emission of the livestock and poultry and improving the environment of livestock and poultry houses. The preparation method is simple in culture medium prescription, capable of saving the production cost and lowering the fermentation energy consumption, high in fermentation yield and good in product quality.
Owner:HARBIN QINGHE TECH

Method for carrying out surface activating treatment on surface of titanium alloy

The invention relates to a method for carrying out surface activating treatment on the surface of titanium alloy. The method includes the following steps: 1. oil and rust removing is first carried out on a titanium alloy base material part; 2. etching treatment is carried out on the part; 3. surface activating treatment is carried out on the part, wherein activating solution of the surface activating treatment is a mixture of glycol, acidic ammonium fluoride, nickel chloride, boric acid, lactic acid and acetic acid, the temperature of the surface activating treatment is within 40 to 60 DEG C, and the time of the surface activating treatment is within 30 to 40min; 4. drying and after-treatment procedures are carried out. Compared with the prior art, the method has the following characteristics: the activating time is short, the activating effect is good, no corrosion is incurred on the part, the risk of corrosion on the part is basically eliminated, and the environmental pollution is mild; with high stability and quick deposition, the activating solution that the method adopts can form a coating with good corrosion/wear resisting properties and good metallurgical combination with a matrix on the surface of the titanium alloy, thereby preventing contact corrosion between the titanium alloy part and aeronautical materials such as aluminum alloy, high-temperature alloy and the like.
Owner:JIANGSU LINLONG NEW MATERIALS

Supercritical (or subcritical) activation method for coal gangue and application of supercritical (or subcritical) activation method

The invention relates to a subcritical or supercritical activation method for coal gangue. According to the method, alkali as an auxiliary is added to the coal gangue and the coal gangue is subjectedto an activating reaction under the subcritical or supercritical condition, and an activated coal gangue sample can be obtained. The invention further relates to a comprehensive utilization method ofthe coal gangue. According to the comprehensive utilization method, the activated coal gangue sample obtained by subcritical or supercritical activation is subjected to a contact reaction with acid, by means of acid leaching, not only can an aluminum oxide product and a white carbon black product be obtained, but also lithium and gallium which are enriched in the coal gangue can be extracted, final filter residues are used for preparing raw materials of cement, and one zero-pollution and zero-emission way of coal gangue waste recovery is really obtained. The methods have the advantages as follows: coal gangue can be activated at the low temperature of about 400 DEG C, few operation steps are required, reaction temperature is low, reaction time is short, no secondary pollution is produced in the whole process, and the novel environment-friendly coal gangue activation method and the way of coal gangue waste recovery are obtained.
Owner:TAIYUAN UNIV OF TECH

System and method for treatment and recovery of electronic electroplating wastewater

The invention discloses a system and a method for treatment and recovery of electronic electroplating wastewater. The system comprises a wastewater recovery and treatment unit and an RO (reverse osmosis) concentrate treatment unit. A grille, an adjusting tank, a coagulation reaction device, a settlement and membrane separation device, an ozone oxidation tank, an ozone digestion tank, a cartridge filter and an RO device are connected to the wastewater recovery and treatment unit sequentially. A hydrolytic acidification tank, a contact oxidation tank and a settling tank are connected to the RO concentrate treatment unit. The electronic electroplating wastewater is treated through the grille, the adjusting tank, the coagulation reaction device, the settlement and membrane separation device, the ozone oxidation tank, the ozone digestion device, the cartridge filter and the RO device. RO fresh water is then reused on an electronic electroplating line. RO condensed water is effectively treated through the hydrolytic acidification tank and the contact oxidation tank and stably meets the primary specification GB8978-1996 of integrated wastewater discharge standard, and discharge requirements DB4426-2001 of discharge limits of water pollutants of Guangdong.
Owner:DONGGUAN KEDA ENVIRONMENTAL PROTECTION ENG

Preparation method of sulfur, nitrogen and phosphorus codoped porous carbon material for supercapacitor

The invention discloses a preparation method of a sulfur, nitrogen and phosphorus codoped porous carbon material for a supercapacitor, and belongs to the technical field of a new energy source. Ginkgoleaves are used as a carbon source; deionized water is used for cleaning and removing surface impurities; after cleaning and drying, crushing is performed; the crushed ginkgo leaves and complex alkali metal hydroxide are uniformly mixed; in inert gas, the temperature is raised at a speed rate of 5 DEG C/min to reach activation temperature; heat insulation is performed for 2h to obtain an activated product; finally, the activated product is subjected to acid washing neutralization; deionized water is used for cleaning until a neutral state is reached; drying, grinding and sieving are performedto obtain the porous carbon material for the supercapacitor. The ginkgo leaves are used as raw materials for preparing the carbon material for the supercapacitor; the energy is saved; the environmentis protected; the process is simple; the cost is low; the sulfur, nitrogen and phosphorus self doping can be realized, so that the electrochemical active sites are increased; the wettability with electrolyte is enhanced; the porous carbon material has wide market application prospects when being used as a supercapacitor electrode material.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY

Method for simultaneously producing activated carbon and medium heating value (MHV) fuel gas by using eupatorium adenophorum

The invention provides a method for simultaneously producing activated carbon and medium heating value MHV fuel gas by using eupatorium adenophorum. The method comprises the following steps of: drying and heating up eupatorium adenophorum for carbonization; heating up and carrying out heat preservation after crushing, then heating up to 900-1000 DEG C, and feeding carbon dioxide to a furnace for activation, thereby obtaining crude products of the activated carbon and MHV fuel gas; and cooling the crude product of the activated carbon to room temperature under the protection of air isolation, and then drying to obtain the product of the activated carbon. The iodine adsorption capacity of the main quality index of the obtained activated carbon achieves the national primary standard, the adsorption property of the obtained activated carbon is good, and the prepared fuel gas has a heat value up to 11000-13000KJ/m<3>, includes main components C2H2, H2, CH4 and CO, belongs to the MHV fuel gas, and can be used as a gas fuel. According to the method for simultaneously producing activated carbon and medium heating value (MHV) fuel gas by using eupatorium adenophorum, the whole process is shorter in activation time, pollution-free in preparation process, high in comprehensive utilization of resources, and high in added value of the product; the materials are rich in source, and the eupatorium adenophorum resources can be fully converted into biomass energy products.
Owner:KUNMING UNIV OF SCI & TECH

Software protecting method and software sale method based on same

The invention discloses a software protecting method, which is specially characterized in that: functional decomposition is carried out on application software by a developer; the application software consists of a basic function and a plurality of special functions and is started by using an encrypted lock; the software is activated by adding a main registration code after the software is started; the activated software only has the basic function; the special functions of the software are at a non-activated state; the special functions are activated by adding a secondary registration code; and one special function corresponds to one secondary registration code. The invention provides the software protecting method which combines a hardware encryption method and a software encryption method. The functional decomposition of the software is carried out in a manner of activating through a plurality of registration codes by using an encryption lock and the registration codes which are in a combined manner, so that the difficulty of resolving the software is increased. The developer sells the application software with complete functions in a non-activated state to a user, and charges using fees of the user by controlling the quantity of the activated functions of the software and a time period of activating the software, so that the benefits of the developer and the user can be maximized.
Owner:北京亚美科软件有限公司
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