1. Gas Processing CenterCollege of EngineeringPO Box 2713, Qatar UniversityDohaQatar
2. Department of Petroleum EngineeringKing Fahd University of Petroleum & MineralsDhahran 31261Saudi Arabia
3. Center for Integrated Petroleum ResearchKing Fahd University of Petroleum & MineralsDhahran 31261Saudi Arabia
4. Chemical Engineering DepartmentCollege of EngineeringPO Box 2713, Qatar UniversityDohaQatar