Refinery Catalysts Market (by Material - Zeolites, Molybdenum, Cobalt, Nickel and Others; by Physical Form - Powders, Beads and Extrudates; by Refining Unit - Fluid Catalytic Cracking Unit, Hydrocracking Unit, H-Oil Unit, Hydrotreating Unit, Catalytic Cra

In the highly organized and consolidated global refinery catalysts market the top four companies collectively accounted for a share of over 75% in 2015, observes Transparency Market Research. These top vendors in the market, including Sinopec Corporation, Royal Dutch Shell