B.Tech Petrochemical Engineering is a four year course in engineering stream .The term petrochemical is used for organic chemicals that are derived from crude petroleum products.In petrochemical engineering, the process of making raw materials of petroleum and other hydrocarbon origin more valuable and useful uses science, especially physics, chemistry, and mathematics.The aim of Petrochemical Engineering is to provide the students with the knowledge about the production of hydrocarbons.The course of petrochemical engineering covers a wide range of different subjects which include mathematics, physics, chemistry, geology, economics, thermodynamics and other subjects.To pursue B.Tech in Petrochemical Engineering, students need 50% marks in aggregate in Physics, Chemistry, Maths and English in class 12th. Top Entrance Exam for B.Tech Petrochemical Engineering. JEE MAIN JEE Advanced SAAT BITSAT LPUNEST UPESEAT. Job Profiles for B.Tech Petrochemical Engineering. Principal Petroleum Engineer Operations Manager Engineering Services Oil and gas extraction Petroleum and coal products manufacturing Support activities for mining. Top Requiring Companies for B.Tech Petrochemical Engineering. Oil and Natural Gas Corporation Limited (ONGC) Bharat Petroleum Corporation Limited (BPCL) Indian Oil Corporation Limited (IOCL) Hindustan Petroleum Corporation Limited (HPCL) GAIL Essar Oil Hindustan Oil Exploration Company Ltd (HOEC).