2results about How to "Improve deoxidation efficiency" patented technology

The application discloses a deoxygenation method and a deoxygenation adsorbent for Fischer-Tropsch synthesis oil, and relates to the field of Fischer-Tropsch synthesis oil processing.The deoxygenation method comprises the following steps: introducing Fischer-Tropsch synthesis oil into an adsorption tower filled with the deoxygenation adsorbent, and removing oxygen-containing compounds.The deoxygenation adsorbent is prepared by the following method: step S1, adding an aluminum source, a silicon source and a template agent into a lye, and performing first aging at room temperature; continuously adding the aluminum source and the silicon source, and performing second aging at room temperature; performing crystallization at a predetermined temperature; and filtering and washing the product to obtain a molecular sieve; and step S2, immersing the molecular sieve in a lye, adding a template agent into the lye, and then performing crystallization; and filtering, washing, drying and calcining the product after the crystallization to obtain the deoxygenation adsorbent.The deoxygenation method for Fischer-Tropsch synthesis oil provided by the application significantly improves the quality of Fischer-Tropsch synthesis oil and the economic benefits of subsequent processing by preparing a deoxygenation adsorbent with multiple levels of pores and combining the adsorption tower.

The application discloses a tungsten / molybdenum alloy prepared by in-situ dehydrogenation and deep deoxidization of hydride and a method thereof, and particularly relates to the following steps: tungsten / molybdenum alloy powder and metal hydride are fully mixed according to a hydride addition amount of 1% to 10% of the total mass of the tungsten / molybdenum alloy powder, then the mixture is pressed into a compact, the compact is placed into a sintering furnace, vacuum in the furnace is extracted, the sintering furnace is heated for vacuum degassing, after the first removal of free oxygen and water vapor in the compact is completed, dry hydrogen is introduced into the sintering furnace and the sintering furnace is heated, under the action of negative pressure, hydrogen enters the voids in the compact, after the second removal of oxygen in the compact is completed, the sintering furnace is continuously heated in a stepwise manner and is kept warm, the temperature is increased to above the dehydrogenation temperature of the metal hydride, the third in-situ dehydrogenation and deep deoxidization of the hydride is completed, and finally the sintering furnace is cooled to obtain a low-oxygen tungsten / molybdenum alloy. The preparation method is simple, the deoxidization efficiency is high, the sintering grain can be significantly refined, the oxygen content in the alloy can be reduced, and the material performance can be improved.