Catalyst are small chemical compounds that when added, control the amount of chemical reaction by increasing or decreasing the activation energy of the process. Additionally, the reaction process does not consume the catalyst, they can be reused after the treatment. The Global chemical catalyst market size is segmented in terms of Type, Application and region. On the basis of Type the market is divided into Heterogeneous Catalyst, Homogeneous Catalyst, Enzymatic Catalyst, By Material, Zeolites, Metals and Chemical Compounds. The Heterogeneous chemical catalyst is the largest type and is popular as it can be easily separated post the reaction process. Often, it is solids that are added to gas or liquid reaction mixtures. Heterogeneous chemical catalysts are popularly used in petroleum refinery, additionally in chemical synthesis and manufacturing of petrochemical process.