Optimum ethane recovery in conventional turboexpander process |
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| Authors: | R Chebbi NS Al-Amoodi NM Abdel Jabbar GA Husseini KA Al Mazroui |
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| Affiliation: | 1. Department of Chemical Engineering, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates;2. Department of Chemical Engineering, The Petroleum Institute, P.O. Box 2533, Abu Dhabi, United Arab Emirates;1. Global Core Research Center for Ships and Offshore Plants, Pusan National University, Busandaehak-ro, 63 Beon-gil, Geumjeong-gu, Pusan 609-735, South Korea;2. Department of Chemical Engineering, Pusan National University, San 30 Jangjeon-dong, Kumjeong-gu, Pusan 609-735, South Korea;1. National Iranian Gas Company (NIGC), Tehran, Iran;2. Process Simulation and Control Research Laboratory, School of Chemical Engineering, Iran University of Science and Technology, P.O. Box 16765-163, Narmak, Tehran, Iran;3. Chemical Engineering Department, Faculty of Engineering, Ilam University, 69315-516 Ilam, Iran;1. School of Petroleum and Gas Engineering, Southwest Petroleum University, Chengdu, China;2. Oil & Gas Field Productivity Construction Department, PetroChina Tarim Oilfield Company, Korla, China |
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| Abstract: | Ethane recovery in a conventional turboexpander process is optimized considering different demethanizer pressures and different feeds: a lean gas and a rich one. The design variables are varied, while meeting process constraints, in order to find the optimum conditions achieving the maximum profit. The analysis covers the whole process including the refrigeration part, and the entire typical demethanizer pressure range. The optimum ethane recovery is compared with the maximum possible recovery for each value of the demethanizer pressure. Recommendations are given regarding the selection of the level of ethane recovery, along with the demethanizer pressure, and refrigeration recovery system. |
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