Upstream LNG Technology

By Prof. Pavitra Sandilya   |   IIT Kharagpur
Learners enrolled: 811
This course discusses in depth the various processes related to upstream LNG technology. The importance, sources and types of natural gases, properties and phase behavior of natural gas, dehydration of natural gas, removal of natural gas hydrates , nitrogen gas and acid gas. Natural gas liquid, sulpher and trace component recovery, Compression of natural gas and Liquefaction of natural gas will be explained to a good extent.
INTENDED AUDIENCE : Mechanical/ Chemical/ Ocean/ Cryogenic/ Marine/ Naval/ Energy/ Petroleum/ Environmental/ Geological Engineering INDUSTRY SUPPORT : IOCL, BPCL, GAIL, Reliance Petrochemicals, HPCL, SHELL etc
Course Status : Completed
Course Type : Elective
Duration : 12 weeks
Category :
  • Chemical Engineering
  • Physics
Credit Points : 3
Level : Undergraduate/Postgraduate
Start Date : 25 Jul 2022
End Date : 14 Oct 2022
Enrollment Ends : 08 Aug 2022
Exam Date : 30 Oct 2022 IST

Note: This exam date is subjected to change based on seat availability. You can check final exam date on your hall ticket.

Page Visits

Course layout

Week 1: Importance, sources and classification of natural gas
Week 2: Estimation of physical properties and phase behavior of natural gas
Week 3: Estimation of thermophysical properties of natural gas
Week 4: Dehydration of natural gas
Week 5: Natural gas hydrates and their removal
Week 6: Nitrogen gas removal
Week 7: Acid gas removal
Week 8: Natural gas liquid, sulphur and trace component recovery
Week 9: Compression of natural gas
Week 10: Flow measurement of natural gas
Week 11: Liquefaction of natural gas
Week 12: Tutorials

Books and references

  1. Kidnay, A.J., Parrish, W.R. and McCartney, D.G., 2019. Fundamentals of natural gas processing. CRC press.
  2. Guo, B. and Ghalambor, A., 2014. Natural gas engineering handbook. Elsevier.
  3. Mokhatab, S., Mak, J.Y., Valappil, J.V. and Wood, D.A., 2013. Handbook of liquefied natural gas. Gulf Professional Publishing.
  4. Bahadori, A., 2014. Natural gas processing: technology and engineering design. Gulf Professional Publishing.

Instructor bio

Prof. Pavitra Sandilya

IIT Kharagpur
I am Prof. Pavitra Sandilya. I have been teaching at the cryogenic engineering centre of IIT Kharagpur since 2002. I have been offering both core and elective courses on mass transfer, separation processes, LNG, CFD etc. to both UGs and PGs. My research area encompasses process intensification, unconventional energy, carbon capture, cryogenic storage, catalyst development, hydrogen separation etc.

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
Date and Time of Exams: 30 October 2022 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
Registration url: Announcements will be made when the registration form is open for registrations.
The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.


Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Kharagpur. It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team

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