32results about How to "Timely and effective removal" patented technology

The invention discloses a preservative-free makeup removal dirt eliminating solution composition and a preparation method thereof. The composition is prepared from 5 to 50 percent of humectants, 10 to30 percent of hydrophilic surfactants, 1 to 10 percent of grease, 0.01 to 10 percent of skin conditioning agents and 5 to 60 percent of deionized water in percentage by mass. The preservative-free makeup removal turbid eliminating solution composition disclosed by the invention can be used for timely and effectively removing various cosmetics, and particularly has the good makeup removal capability on eye shadow, mascara cream and the like which generally cannot be easily removed; the contained skin conditioning agents can effectively eliminate toxin in the skin and foreign matters such as dirt, fat granules and blackheads in the pores; the effect of deeply eliminating dirt in the skin can be achieved; the skin quality is improved, so that the skin becomes clear.

The present invention relates to a method for preparing hydrogen sulfide. The method uses molten sulphur and hydrogen as starting materials, including a synthesizing stage of hydrogen sulfide and a refining stage of hydrogen sulfide. The synthesizing stage of hydrogen sulfide includes steps of evaporating and vaporizing the molten sulphur in an evaporator by utilizing an electric induction heating device on the periphery of the evaporator to obtain sulfuric vapors; putting the hydrogen into the evaporator, pre-heating, rising temperature, intensive mixing with the sulfuric vapors to obtain the gas mixture of hydrogen and sulfuric vapors; and putting the gas mixture of hydrogen and sulfuric vapors into a synthesizing tower, and synthesizing to obtain the gas mixture of hydrogen sulfide, hydrogen and sulfuric vapors. The refining stage includes steps of removing the sulfuric vapors from the gas mixture of hydrogen sulfide, hydrogen and sulfuric vapors, absorbing the hydrogen sulfide and regenerating to obtain the refined hydrogen sulfide gas. The molten sulphur is evaporated by utilizing the electric induction evaporator, which is easy to control the temperature and has high evaporation efficiency.

The invention discloses a preparation method for hydroxyethyl dual fatty acid amide. The method specifically includes steps: (1) salification reaction: reacting hydroxy higher fatty acid with hydroxyethyl ethylenediamine under the protection of nitrogen, heating a complex antioxidant of sodium bisulfite and sodium borohydride and a complex catalyst of phosphoric acid, magnesium sulfate and calcium sulfate for salification reaction; (2) dehydration reaction: increasing temperature for continuing reaction after adding hydroxyethyl ethylenediamine for reaction; and (3) enabling the temperature of materials to be decreased to 80 DEG C to 100 DEG C, the amine value to be less than or equal to 5 mgKOH/g and the acid value to be less than or equal to 10 mgKOH/g for discharging to obtain the hydroxyethyl dual fatty acid amide. The sodium bisulfite and the sodium borohydride are taken as the complex antioxidant during the reaction process and the process conditions are adopted, so that products are colory and have low melting point.

The invention discloses a technology of synchronous desulfurization and denitration through a flue gas ammonia method based on electrolytic regeneration iron removal. The problem that for an existing desulfurization and denitration technology, the regeneration efficiency of an absorption solution is not high is solved. According to the technical scheme, the technology comprises the steps that pressurizing is conducted on flue gas, the flue gas is sent to a concentration tower to be reacted with a concentrated solution in the tower in a contacting mode, the flue gas coming out of the concentration tower is sent to an absorption tower to be reacted with the circulation absorption solution in the tower in a contacting mode, the concentrated solution reacted at the tower bottom part of the concentration tower is sent into an ammonium sulfate crystal system after iron is removed through a first electrolytic reactor, the absorption solution reacted at the tower bottom part of the absorption tower is sent back to the upper portion of the absorption tower to serve as the circulation absorption solution through regeneration, and the concentration solution enters an anode chamber in a reaction unit of the first electrolytic reactor to conduct an oxidation reaction and then enters a cathode chamber to conduct a reduction reaction; a reacted electrolyte is discharged from an outlet connection short pipe and sent into the ammonium sulfate crystal system. The technology of synchronous desulfurization and denitration through the flue gas ammonia method based on electrolytic regeneration iron removal has the advantages of being simple in method, low in investment cost and operating cost, high in conversion efficiency, good in iron removing effect and good in desulfurization and denitration effect.

The invention relates to the field of Fischer-Tropsch, and discloses a slurry reactor reaction system and a method for a Fischer-Tropsch synthesis reaction. The reaction system comprises a slurry reactor, an internal heat exchange unit and an external heat exchange unit; the internal heat exchange unit is arranged inside the slurry reactor, the external heat exchange unit is arranged outside the slurry reactor, the external heat exchange unit comprises a steam pocket, a buffer tank and a heater which are sequentially connected in series, the heater is communicated with a lower water inlet in the internal heat exchange unit, and the steam pocket is communicated with an upper water outlet of the internal heat exchange unit; the internal heat exchange unit comprises a heat exchange pipe witha baffle. The heat exchange efficiency of the heat exchange unit inside the slurry reactor can be improved, the uniform and stable temperature inside the slurry reactor is ensured, when local temperature runaway of a catalyst happens, surplus heat brought by temperature runaway can be effectively removed in time, and then the yield of a target product is ensured.

The invention discloses a sensor error identification and elimination method based on a Laplacian eigenmapping algorithm, and relates to the field of engine testing. An annular symmetrical temperature measurement structure, Laplacian eigenmapping and a wavelet basis noise reduction algorithm to complete continuous and accurate measurement of the temperature of an engine are adopted. The method comprises the following steps: 1, in order to cope with airflow disturbance generated by deflection of tail flame of an engine, arranging an engine combustion chamber annular symmetrical structure measuring device; 2, in order to timely and effectively weaken and remove measurement interference, further obtaining a target temperature value through dimension reduction processing of a Laplacian feature mapping algorithm; and 3, performing sensor temperature signal noise reduction processing through wavelet transform filtering, and selecting a wavelet basis Coif5 to perform temperature signal noise reduction processing so as to eliminate a measurement error caused by a complex engine tail flame temperature change rule. According to the invention, the problems of poor temperature measurement accuracy caused by complex temperature change rules and difficulty in timely and effective removal of measurement interference can be effectively solved.

The invention discloses a direct cooling type circulating water drainage open channel defoaming device which comprises a water spraying pipeline and a supporting plate, the water spraying pipeline isarranged on the supporting plate, small water spraying holes with set angles are evenly distributed in the lower side of the center line of the water spraying pipeline, and small columnar water flow can be generated and sprayed to the water surface. Original foam can be effectively removed, and new foam cannot be generated; and the supporting plate floats on the water surface and can intercept foam on the water surface, so that the foam on the water surface close to the wood plate can be timely and effectively removed under the water spraying condition. The direct cooling type circulating water drainage open channel defoaming device is simple in structure, low in manufacturing cost, economical, practical, free of personnel on duty, capable of effectively removing foam on the water surfaceand capable of reducing negative effects on the environment and ecology, and only whether abnormity exists or not is inspected, and operation is not needed.