Image Number 3 for United States Patent #4448677.
A demetalation and desulfurization catalyst for metal and sulfur containing petroleum oils, e.g., residua containing hydrocarbon components, comprising a hydrogenating component composited on a refractory base, e.g., alumina, having a substantially higher pore volume and more pore volume distributed within the 0-100 .ANG. diameter range than such previously known catalysts and method of using same; said catalyst possesses superior aging characteristics.
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