| abstract |
Disclosed is a porous catalytic object for decomposing hydrocarbons which comprises a porous composite oxide and nickel metal having a particle diameter of 1-25 nm, the porous composite oxide at least containing magnesium and/or calcium and further containing aluminum, the porous catalytic object being characterized by having an average compressive strength of 5 Kgf or higher and having a displacement length of 0.05 mm or longer when compressed at a load of 5 Kgf. The porous catalytic object is less expensive as a porous catalytic object for decomposing hydrocarbons, has excellent catalytic activity with respect to the decomposition and removal of hydrocarbons, has excellent resistance to poisoning by sulfur, has high resistance to caulking even under low-steam conditions, has a compressive strength and a displacement length which render the object optimal for DSS operations, and has excellent durability. |