Answer to Question #230876 in Chemical Engineering for Lokika

Question

2.------present in the molten sulfur deteriorates the platinum catalytic activity?

a) H₂SOA

c) Phosphorous

b) Arsenic

d) Coke

Answer 1

Sulfur is a severe poison for most metal catalysts because sulfur compounds are strongly chemisorbed on the metal surface. The catalysts may deactivate as a result of small impurities of sulfur compounds (like H₂S, H₂SO₄, etc$.$) present in the reactants or incorporated in the catalyst during its preparation. A.