Invited SpeakersProfile Details

Mr. Nasser Alaslai
Mr. Nasser Alaslai KAUST, Saudi Arabia

Biography

​Saudi Aramco / Refinery Operations (Dec. 2002- Nov. 2003): Operation engineer in crude unit and planning engineer in manufacturing planning unit.

Saudi Aramco:/Gas Operation (Dec. 2003 - July. 2006): Area operation supervisor - Process engineer

Saudi Aramco / Project Management (July. 2006 - Dec. 2010): Project and Commissioning Engineer

Saudi Aramco:/Gas Operations (Dec. 2010 – July.2011): Senior process Engineer

B.Sc., Chemical Engineering, KFUPM, Dhahran, Saudi Arabia, 2002

M.Sc., Chemical Engineering, KAUST, Thuwal, Saudi Arabia, 2013

KAUST: PSE: CBE: AMPMC (May.2013- Current): PhD Student working on the field of natural gas separation and acid gas removal by using membrane technology.

All sessions by Mr. Nasser Alaslai

  • Day 3Wednesday, February 22nd
Session 5: Membranes and Porous Materials: Industrial Perspectives
11:30 am

High-Performance Hydroxyl-Functionalized Polyimides for Natural Gas Separation

Natural gas separation has grown to one of the largest scale industrial applications of membrane technology during the past three decades. Introducing membrane technology to the natural gas industry presents a major change in conventional gas processing plants with projected growth specifically for CO2/CH4 separation. The most commonly used commercial membrane material for CO2 removal from natural gas is based on cellulose acetate (CA) which has pure-gas selectivity of about 32-35 but under high-pressure, mixed-gas conditions, the CO2/CH4 selectivity often drops to less than 15 coupled with moderate CO2 permeability. Here, I discuss the effect of hydroxyl functionalization on the m-phenylene diamine moiety of 6FDA- and triptycene dianhydrides-based polyimides for gas separation applications.
The dihydroxyl-containing polyimide showed good plasticization resistance and maintained high mixed-gas selectivity when tested at a typical CO2 natural gas wellhead CO2 partial pressure of 10 atm. Functionalization with hydroxyl groups may thus be a promising strategy towards attaining highly selective polyimides for economical membrane-based natural gas sweetening.

Level 0, between bld. 4 and 5 11:30 - 12:00 Details