59results about How to "Guaranteed regeneration effect" patented technology

The invention discloses a denitration catalyst regeneration solution and a preparation method thereof as well as a catalyst regeneration method. The denitration catalyst regeneration solution comprises the following raw material ingredients in parts by weight: 4-6 parts of vanadyl oxalate, 0.08-0.10 part of cerium nitrate, 0.11-0.13 part of lanthanum nitrate, 0.05-0.07 part of copper nitrate, 0.4-0.6 part of silica sol ST-O and 95 parts of deionized water. The catalyst regeneration method comprises the following steps of firstly, evenly mixing vanadyl oxalate and the deionized water; then, feeding cerium nitrate, lanthanum nitrate and copper nitrate into mixed solution, and fully stirring until the mixture is completely dissolved; finally, feeding silica sol ST-O, and continuing to stir until homogeneous phase is obtained; and sequentially carrying out strong scavenging and ultrasonic cleaning on an inactivated denitration catalyst module, soaking the module in cleaning solution for 18-25 minutes, continuing soaking the module in the regeneration solution for 25-40 minutes, taking out the denitration catalyst module and drying. After the denitration catalyst regeneration solution and the catalyst regeneration method are adopted, the activity of the inactivated denitration catalyst can be efficiently recovered, and the temperature range of the catalyst activity is widened.

Provided are a regeneration filter element and a novel hole-layout filter element inner barrel for electric oil. Guide grooves are uniformly and axially arranged on the outer surface of the filter element inner barrel, and filter holes are uniformly arranged in the middle of one third of the length of the filter element inner barrel. The regeneration filter element for the electric oil comprises the novel hole-layout filter element inner barrel for the electric oil, a filter element outer barrel arranged outside the filter element inner barrel, adsorbent stuffed in a cavity between the filter element inner barrel and the filter element outer barrel, and a filter material layer between the adsorbent and the filter element inner barrel. By the aid of the regeneration filter element and the novel hole-layout filter element inner barrel for the electric oil, the problems of adsorbent leakage and oil flow interruption due to poor gluing of an upper end and a lower end of the filter element inner barrel are solved.

The invention provides a combined water treatment method for synchronously removing sulfate, hardness and total dissolved solids. The combined water treatment method comprises the following steps of removing sulfate in water by using special magnetic resin, and carrying out solid-liquid separation to obtain first-grade purified water; adding a hardness removing agent into the first-grade purified water to coagulate, and removing a sediment through contact filtration to obtain second-grade purified water; and carrying out fine filtration on the second-grade purified water, and sterilizing to obtain the product water. The combined water treatment method can be used for synchronously removing sulfate, total hardness and total dissolved solids, has the characteristics of convenience in use, flexibility in operation, wide application range and the like, and has relatively good popularization and application prospects.

The invention provides a hot-mix asphalt rejuvenator, its preparation method and application. The hot-mix asphalt rejuvenator includes the following components by weight: 65.0-85.0 parts of heavy oil; 10.0-30.0 parts of polymer; 1.0-1.5 parts of anti-aging agent; 1.0-2.0 parts of anti-aging agent; 1.5-3.0 parts of anti-rutting agent. The hot-mix asphalt rejuvenator uses heavy oil with high aromatic content, which can enhance the compatibility between the hot-mix asphalt rejuvenator and waste and aged asphalt, thereby ensuring the regeneration effect of the hot-mix asphalt rejuvenator; The addition of penetrant improves the mixing speed of hot mix asphalt rejuvenator and aged asphalt, makes hot mix asphalt rejuvenator and aged asphalt fully mixed in a short time, and promotes the comprehensive recovery of aged asphalt performance.