3 results about "Residual oil" patented technology

The invention provides an automatic oiling method and system of an unmanned ship. The method and system are used for at-sea automatic oiling of the unmanned ship. The method comprises the steps that 1, the residual oil amount of an oil tank is detected by the oil receiving chip, and an oil requirement signal is sent out when the oil receiving chip needs to be oiled; 2, an oiling ship receives theoil requirement signal and sails toward the oil receiving ship until the oiling ship is in a 'sending-receiving' range of a sensor of the oil receiving ship; 3, the oil receiving ship gets close to apoint where signal reflection of the sensor is the strongest; 4, after the two ships stay side by side, an oiling device is extended to an oil receiving device of the oil receiving ship by the oilingship; 5, the oil receiving device is locked and sealed after being connected with the oiling device, and an oiling signal is sent out by the oil receiving ship; 6, the oiling ship receives the oilingsignal and conducts oiling; 7, the oil receiving ship sends out an oiled signal and completes movements of unlocking, detachment and capping on the oil receiving device after being oiled.

The invention relates to a method for extracting long-chain fatty alcohol from residual oil produced by vitamin E, and belongs to the technical field of separation and extraction in biological engineering, the method comprises the following steps of: using the residual oil produced by vitamin E as a raw material, adding a certain amount of organic solvent and strong alkali for heating saponification, neutralizing the saponification solution, extracting solid phytosterol, adsorbing and separating the extracted solution by using strong alkali type anionic resin to prepare a long-chain fatty alcohol crude product, and recrystallizing the crude product by using a non-polar solvent to obtain the high-purity long-chain fatty alcohol, wherein the content of the high-purity long-chain fatty alcohol reaches more than 95%, and the appearance of the product is in a flaky crystal. According to the invention, by utilizing the inherent characteristics of the product, the product is separated from the residual oil by the strong alkali type anion resin, and then further purified, so that the obtained product has high purity, less impurities and good quality, and the contents of heavy metals and microorganisms meet the requirements of food additives; and the residual oil produced by vitamin E is used as the raw material, so that the source is concentrated, the raw material is rich, the cost islow, the process is simple, and the industrial production is easy to achieve.

The invention discloses a preparation method of a diesel microemulsifier, which comprises the following steps: reacting a formaldehyde solution with monoethanolamine to obtain a product A, reacting docosenoic acid, oleic acid and diethanolamine to obtain a product B, and uniformly mixing 20-40 wt% of product A, 50-70 wt% of product B, 1-10 wt% of rhamnoilpid, 1-10 wt% of sulfosuccinate and 1-5 wt% of monoisobutyl amine. The preparation method is simple, and overcomes the defects of high addition amount of the emulsified oil emulsifier, low product stability, nontransparent appearance, short storage time, high tendency to demulsification and stratification and the like. The diesel microemulsifier can be used for preparing microemulsified oil with the water content of less than 30%. The microemulsified diesel prepared by the microemulsifier can stably exist for more than 1 year at room temperature. The microemulsified oil slurry and residual oil can stably exist for more than half a year.