SOLID HEAT CARRIER CATALYST FOR THERMAL DESORPTION OF ORGANIC MATTER-CONTAMINATED SOIL AND METHOD FOR PREPARING SAME
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United States of America Patent
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Issued Date -
Feb 15, 2024
app pub date -
May 8, 2023
filing date -
Aug 9, 2022
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Abstract
A solid heat carrier catalyst for thermal desorption of organic matter-contaminated soil and a method for preparing the same. A hollow alumina ball prepared by 3D printing is taken as a solid heat carrier, copper-nickel-vanadium composite oxide is taken as a catalytic active component, and vinyltriethoxysilane is taken as a masking agent. The ball has a diameter of 30 mm to 60 mm and a thickness of 1 mm to 2 mm. An outer surface of the ball is masked with the vinyltriethoxysilane; then the ball is pierced to make an inner surface thereof connected with the outside through channels; the ball is then immersed in a catalytic active component precursor solution; and finally, drying and calcination are performed to obtain the solid heat carrier catalyst for thermal desorption of organic matter-contaminated soil. This product is widely applicable to the field of thermal desorption of organic contaminants of soil.
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