What are the major components of a catalyst ?
What is the function of support in a solid catalyst ?
What are the major unit operation steps in catalyst preparation ?
How bulk catalyst is prepared in industry? Give one example of bulk catalyst used in industry.
Name the type of metal precursor salts preferred for precipitation process. Explain why ?
How does precursor concentration affect precipitation ?
What is the effect of addition of surfactant during precipitation ?
What are the major mechanistic steps in precipitation process ?
How the property of catalyst is affected by pH during preparation by sol gel method ?
What is the importance of aging step during preparation of catalyst by sol gel method ?
Compare precipitation and solgel process of catalyst preparation.
Mention types of precursor distribution observed in supported catalyst?
State the major advantages of super critical drying.
What conditions affect the distribution of precursors during impregnation process ?
What is the purpose of calcination step in solid catalyst preparation?
Which mode of impregnation, ‘dry' or' wet', will be preferred by you and why ?
What physical processes are involve during impregnation of catalyst ?
Why catalyst formulation and shaping is needed?
Which of the following formulation processes can give narrowest particle size distribution? Granulation, Spray drying, Extrusion
During preparation of a bimetallic catalyst by co-precipitation method, following observations were made. Explain the results.
1. when mixed metal solution was added to precipitating agent a homogeneous product was obtained
2. when precipitating agent was added to mixed metal solution non homogeneous product was obtained.