Start
Dec 14, 2015 - 15:00
End
Dec 14, 2015 - 16:00
Venue
Room 240 Chemical Engineering
Event Type
Speaker
Praveen Linga Assistant Professor Department of Chemical and Biomolecular Engineering National University of Singapore Singapore.
Title
Clathrate hydrates: Opportunity to develop innovative applications
Abstract: Clathrate hydrate science has evolved over the centuries from a mere academic curiosity to being a nuisance to oil and gas industry (flow assurance) and now is being seen as a future energy resource (natural gas hydrates deposits). The clathrate hydrate process has also been demonstrated over the years as promising for innovative applications like natural gas storage carbon capture seawater desalination cold storage etc. Some challenges remain specific to each of these focus areas that needs to be overcome inorder to commercialize these applications. In this presentation the state of the art on gas hydrate technology for three applications pertaining to carbon capture seawater desalination and natural gas storage will be discussed in detail. The focus will be on pre-combustion carbon capture from IGCC power plants. Hydrate based gas separation (HBGS) process is the most environmental friendly approach as water is used as a solvent to capture CO2 via forming clathrate hydrates. Compared to conventional technologies high CO2 capacity and CO2 regeneration under high pressure are key characteristic advantages for the HBGS process for CO2 capture. Another application that has received renewed interest is seawater desalination using the hydrate based desalination (HBD) process. Our recent knowledge on enhancing the kinetics can be applied to efficiently desalinate seawater to produce potable water. An innovative approach to offset the refrigeration cost for the HBD process will be discussed. Finally our recent findings on solidified natural gas (SNG) technology for large-scale natural gas storage will be highlighted.Biography: Praveen LINGA is an assistant professor in the Department of Chemical and Biomolecular Engineering at the National University of Singapore (NUS). He also serves as an associate editor in the journal of natural gas science and engineering. Dr. Linga holds a PhD (2009) in Chemical Engineering from the University of British Columbia (UBC). His research interests are in the areas of clathrate (gas) hydrates flow assurance storage and transport of fuels carbon capture storage & utilization (CCS & U) and recovery of energy. He has published more than 50 peer-review articles in international journals. His research has received three most cited paper awards from two journals (two from chemical engineering science and one from international journal of greenhouse gas control).