51results about How to "Good hole making effect" patented technology

The invention discloses a preparation method of an alga-based active carbon precursor for a super capacitor. The method mainly comprises the following steps: ultrasound and swelling and other methodsare firstly utilized for carrying out cell wall breaking of alga raw materials, so that alginate in pectin of cell walls and between cells is dissolved; a digestion process is further carried out, under the heating condition with alkali, alginates which are not dissolved in water are converted into water soluble alkali metals and extracted; a cross-linking agent is introduced, and precipitation ofpolymers is formed; washing and filtering steps are carried out, in order to discharge a large amount of inorganic salts, pigments and other impurities which are dissolved in water along with water,and the precursor is obtained. The precursor is carbonized and activated in order to obtain the active carbon material with reasonable pore structure, abundant channels, and massive specific surface area, in order to substantially improve capacity and electrochemical performance of the super capacitor with extremely good industrial application prospects.

The invention provides a low-cost high-activity catalytic type desulphurization active coke. The low-cost high-activity catalytic type desulphurization active coke is a material which is activated, extruded and formed by mainly components comprising carbonization soft coal and pyrolusite; the percentage of weight of manganese is not less than 1.6%; the saturated sulphur capacity of the desulphurization active coke is 140-181mg / g; the specific surface area is 319-363m<2> / g; the iodine value is 344-393mg / g. The preparation method of the low-cost high-activity catalytic type desulphurization active coke comprises the following steps: firstly carbonizing smoke, crushing the pyrolusite and the soft coal carbonization material into powder, adding the soft pyrolusite powder into the soft coal carbonization material powder and uniformly mixing, then adding water to mix till the material is free of powder aggregate, adding coal tar, fully kneading and then extruding, forming and drying, causing the dried material to be subjected to activation reaction under the conditions with N2 protection and water vapor, finally cooling the material along with a furnace to room temperature under the N2 protection to obtain the low-cost high-activity catalytic type desulphurization active coke. By virtue of the low-cost high-activity catalytic type desulphurization active coke, the problems of low desulfuration capacity, regeneration frequency, large use amount and high operation cost of the currently-used desulfuration active coke can be solved.