What is Petrochemical Engg.?
Petrochemical Engineering starts where Petroleum Engineering ends. Once crude oil or gas reaches a refinery, petrochemical engineers separate it by distillation, crack and reform it with catalysts, and turn the products into petrol, diesel, jet fuel, LPG, and building blocks such as ethylene, propylene and aromatics, which then become plastics, synthetic fibres, detergents and solvents.
The core is the same as Chemical Engineering (thermodynamics, transport, reaction engineering, process control), with extra depth in petroleum refining, catalysis, petrochemical processes, polymer technology and refinery safety. Process simulation with tools such as Aspen HYSYS is a key skill.
Where it is taught: AMU's Department of Petroleum Studies (B.Tech Petrochemical Engineering, about 30 seats), Dr. Babasaheb Ambedkar Technological University (DBATU), Lonere, JNTU College of Engineering Kakinada, and Laxminarayan Institute of Technology (LIT), Nagpur, which calls it Petrochemical Technology. Because the branch is niche, many refinery engineers are in fact Chemical Engineering graduates; that remains a safe alternative.
Who is this course for?
- Students who like Chemistry and want an industry-focused branch
- Those curious about how refineries and cracker plants work
- Students who want careers with oil PSUs such as IOCL, BPCL, HPCL
- Problem-solvers interested in catalysts, efficiency and safety
- Students comfortable with shift work in large plants
- Those interested in cleaner fuels, biofuels and recycling of plastics
What you study
- Year 1
- Engineering Mathematics
- Engineering Physics
- Engineering Chemistry
- Programming
- Engineering Graphics
- Basic Electrical Engineering
- Year 2
- Process Calculations
- Fluid Mechanics
- Chemical Engineering Thermodynamics
- Organic Chemistry of Hydrocarbons
- Mechanical Operations
- Petroleum Geology and Origin of Crude
- Year 3
- Heat and Mass Transfer
- Petroleum Refining Engineering
- Chemical Reaction Engineering and Catalysis
- Petrochemical Processes
- Polymer Technology
- Industrial Training
- Year 4
- Process Control and Instrumentation
- Refinery and Plant Design
- Process Safety and Hazard Analysis
- Natural Gas Processing
- Process Simulation
- Project
Specialisations and electives
Petroleum refiningCatalysis and reaction engineeringPolymer and plastics productionNatural gas processing and LNGProcess safetyProcess simulation and optimisationBiofuels and green hydrogenPipeline and storage engineering
Eligibility & admission
- Class 12 (or equivalent) with Physics and Mathematics compulsory, plus Chemistry (required by most colleges for this branch).
- Minimum marks usually 45% in PCM for general category and 40% for reserved categories (AICTE norm); some colleges ask for more.
- For JoSAA institutes (IITs, NITs, IIITs, GFTIs): 75% in Class 12 (65% for SC/ST) or top-20 percentile in your board.
- No upper age limit for JEE Main; JEE Advanced allows two consecutive attempts.
- AMU requires at least 50% aggregate in English, Physics, Chemistry and Maths in Class 12 and admits through its own B.Tech entrance test.
- LIT Nagpur and DBATU admit through Maharashtra CAP (MHT CET/JEE Main); JNTU Kakinada through AP EAPCET.
How admission works
- Shortlist colleges that actually offer Petrochemical Engineering/Technology and note the exam each uses.
- Write the AMU B.Tech entrance test, MHT CET, JEE Main or AP EAPCET as needed.
- Register for counselling: AMU counselling, Maharashtra CAP (DTE) or AP EAPCET counselling.
- Choose Petrochemical Engineering/Technology, accept the allotted seat and pay the fee.
- Complete document verification and report to the college.
Entrance exams
AMU B.Tech Entrance (AMUEEE)B.Tech Petrochemical Engineering at AMU Aligarh
MHT CETDBATU Lonere and LIT Nagpur (Maharashtra CAP)
JEE Mainall-India seats in Maharashtra CAP and other colleges
AP EAPCETJNTU College of Engineering Kakinada
JEE AdvancedRGIPT chemical engineering with petroleum refining focus (alternative)
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Top colleges for Petrochemical Engg.
| College | City | Why it stands out |
|---|
| Aligarh Muslim University (Department of Petroleum Studies) | Aligarh | Central university; NBA-accredited B.Tech Petrochemical Engineering, about 30 seats |
| Dr. Babasaheb Ambedkar Technological University (DBATU) | Lonere, Raigad | State technological university; B.Tech Petrochemical Engineering |
| JNTU College of Engineering Kakinada | Kakinada | Petroleum & Petrochemical Engineering department; petrochemical B.Tech since 2008 |
| Laxminarayan Institute of Technology (LIT) | Nagpur | Government institute; B.Tech Petrochemical Technology |
| Rajiv Gandhi Institute of Petroleum Technology (RGIPT) | Jais, Amethi | Alternative: chemical engineering with refining/petrochemical focus; JEE Advanced |
| Institute of Chemical Technology (ICT) | Mumbai | Alternative: Chemical Engineering with strong refinery recruitment |
Ranks are from the NIRF 2025 India Rankings where shown. Check each college’s official website for this year’s seats, fees and cut-offs.
Careers & salary
Refinery Process EngineerOperates and optimises units such as crude distillation, FCC and hydrocrackers.
Petrochemical Plant EngineerRuns cracker and polymer plants making ethylene, polypropylene and PET.
Process Design EngineerDesigns refinery and petrochemical units at EPC companies.
Process Safety EngineerCarries out HAZOP and risk studies for hydrocarbon plants.
Pipeline and Terminal EngineerManages storage and transport of crude, products and gas.
Catalyst and Technical Service EngineerSupports refineries in selecting and running catalysts.
Quality Control EngineerTests fuels and chemicals against BIS and export specifications.
Top recruiters & sectors
Indian Oil (IOCL)BPCLHPCLReliance IndustriesNayara EnergyGAILMRPLEngineers India LtdHaldia PetrochemicalsL&T Energy HydrocarbonShell and other multinationalsGulf refineries
Salary
Freshers typically start at ₹4–8 LPA (approx.) in private refineries, petrochemical companies and EPC firms. Oil PSUs recruit mainly through GATE (Chemical Engineering paper), with executive-trainee packages of roughly ₹12–18 LPA cost to company (approx.).
With 5–10 years of experience, refinery and design engineers commonly earn ₹12–25 LPA (approx.), and Middle East postings can pay more. Simulation skills, safety certifications and large-plant experience raise pay. Figures vary; check current placement reports.
Scope & higher studies
India is the world's fourth-largest refiner and keeps expanding refinery and petrochemical capacity, with new and upgraded complexes at Panipat, Barmer, Paradip, Jamnagar and elsewhere. Demand for plastics and synthetic fibres is rising faster than for fuels, so oil companies are integrating refineries with petrochemical plants, which needs process engineers.
In 2026, growth areas include biofuels and ethanol blending, green hydrogen in refineries, chemical recycling of plastics and lower-emission processes. Graduates should note that only a few colleges offer this exact branch, and that GATE Chemical is the main route to PSU jobs.
After this course
- M.Tech in Chemical/Petrochemical Engineering via GATE (CH paper)
- M.Tech in Petroleum Processing and Petrochemical Engineering (e.g. AMU)
- MS abroad in chemical or process engineering
- MBA in Oil and Gas or operations
- PSU careers via GATE
Petrochemical Engg. FAQs
Is Petrochemical Engineering different from Chemical Engineering?
It is a specialised form of Chemical Engineering with extra focus on refining and petrochemicals. Chemical Engineering is broader and opens more industries.
Which colleges offer Petrochemical Engineering?
Verified options include AMU Aligarh, DBATU Lonere, JNTU College of Engineering Kakinada and LIT Nagpur (Petrochemical Technology). Always check the current programme list on the official website.
Can petrochemical engineers get PSU jobs?
Yes. IOCL, BPCL, HPCL, GAIL and others recruit through GATE, mostly using the Chemical Engineering (CH) paper. Check each PSU's eligible branches in its notice.
What is the salary after Petrochemical Engineering?
Freshers typically earn about ₹4–8 LPA (approx.), while PSU executive trainees earn more. Experienced refinery engineers can earn ₹12–25 LPA.
Will petrochemical jobs decline because of EVs?
Fuel demand may slow, but demand for petrochemicals such as plastics and fibres is still growing. Refineries are also moving into biofuels and hydrogen, which need the same skills.
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