Catalyst coatings having metal oxide crystallites
a catalyst and metal oxide technology, applied in physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, separation processes, etc., can solve the problems of affecting the health of people, and affecting the quality of life of people,
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example 1
[0132]A manganese nitrate solution (50% w / w solution) was diluted to a volume matching the incipient wetness point of a high surface area gamma alumina support material (2.0 mL / g), referred to hereinafter as “Support(1)”, and to a concentration matching the total desired manganese (Mn) content of the final solid (5.0 g of Mn). Support(1) is a gamma alumina and silica (19:1) support, and, as measured, has a BET surface area of 230 m2 / g, a pore volume of 1.2 mL / g, and average pore radius of 7.5 nanometers. The diluted Mn nitrate solution was slowly and completely added to the dry Support(1) solid (92.1 g) under mixing until reaching the incipient wetness point, forming Mn impregnated wet alumina. The Mn impregnated wet alumina was dried at 90° C. for 2 hours, and then calcined at 550° C. in a box furnace for one hour.
example 2
[0133]A manganese nitrate solution (50% w / w solution) was diluted to a volume matching the incipient wetness point of Support(1) (2.0 mL / g), and to a concentration matching the total desired Mn content of the final solid (15.0 g of Mn). The diluted Mn nitrate solution was slowly and completely added to the dry Support(1) solid (76.3 g) under mixing until reaching the incipient wetness point, forming Mn impregnated wet alumina. The Mn impregnated wet alumina was then dried at 90° C. for 2 hours and then calcined at 550° C. in a box furnace for one hour.
example 3
[0134]A manganese acetate solution (30% w / w solution) was prepared by dissolving Mn(C2H3O2)2.4H2O (60 g) in 100 mL of deionized water. The Mn acetate solution was diluted to a volume matching the incipient wetness point of Support(1) (2.0 mL / g), and to a concentration matching the total desired Mn content of the final solid (5.0 g of Mn). The diluted Mn acetate solution was slowly and completely added to dry Support(1) solid (92.1 g) under mixing until reaching the incipient wetness point, forming Mn impregnated wet alumina. The Mn impregnated wet alumina was then dried at 90° C. for 2 hours and then calcined at 550° C. in a box furnace for one hour.
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