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A novel NGL (natural gas liquid) recovery process based on self-heat recuperation

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  • Van Duc Long, Nguyen
  • Lee, Moonyong

Abstract

This study examined an innovative self-heat-recuperation technology that circulates latent and sensible heat in the thermal process and applied it to the NGL (natural gas liquid) recovery process. A CGCC (column grand composite curve) was used to assess the thermodynamic feasibility of implementing the heat pump system and self-heat-recuperation technology into a conventional distillation column. The proposed distillation based on self-heat recuperation reduced the energy consumption dramatically by compressing the effluent stream, whose temperature was increased to provide the minimum temperature difference for the heat exchanger, and circulating the stream heat in the process. According to a simulation of the proposed sequence, up to 73.43 and 83.48% of the condenser and reboiler energy, respectively, were saved compared to a conventional column. This study also proposes heat integration to improve the performance of self-heat recuperation. The results showed that the modified sequence saves up 64.35, 100.00 and 31.60% of the condenser energy requirements, reboiler energy requirements and OP (operating cost), respectively, compared to a classical heat pump system, and 90.24, 100.00, and 67.19%, respectively, compared to a conventional column. The use of these sequences to retrofit a distillation column to save energy was also considered.

Suggested Citation

  • Van Duc Long, Nguyen & Lee, Moonyong, 2013. "A novel NGL (natural gas liquid) recovery process based on self-heat recuperation," Energy, Elsevier, vol. 57(C), pages 663-670.
    • Handle: RePEc:eee:energy:v:57:y:2013:i:c:p:663-670
    DOI: 10.1016/j.energy.2013.04.078
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    References listed on IDEAS

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    1. Kiss, Anton A. & Flores Landaeta, Servando J. & Infante Ferreira, Carlos A., 2012. "Towards energy efficient distillation technologies – Making the right choice," Energy, Elsevier, vol. 47(1), pages 531-542.
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    Cited by:

    1. Le Quang Minh & Nguyen Van Duc Long & Pham Luu Trung Duong & Youngmi Jung & Alireza Bahadori & Moonyong Lee, 2015. "Design of an Extractive Distillation Column for the Environmentally Benign Separation of Zirconium and Hafnium Tetrachloride for Nuclear Power Reactor Applications," Energies, MDPI, vol. 8(9), pages 1-16, September.
    2. Qyyum, Muhammad Abdul & Naquash, Ahmad & Haider, Junaid & Al-Sobhi, Saad A. & Lee, Moonyong, 2022. "State-of-the-art assessment of natural gas liquids recovery processes: Techno-economic evaluation, policy implications, open issues, and the way forward," Energy, Elsevier, vol. 238(PA).
    3. Long, Nguyen Van Duc & Minh, Le Quang & Nhien, Le Cao & Lee, Moonyong, 2015. "A novel self-heat recuperative dividing wall column to maximize energy efficiency and column throughput in retrofitting and debottlenecking of a side stream column," Applied Energy, Elsevier, vol. 159(C), pages 28-38.
    4. Kim, Young Han, 2014. "Application of partially diabatic divided wall column to floating liquefied natural gas plant," Energy, Elsevier, vol. 70(C), pages 435-443.
    5. Liu, Siyao & Cui, Chengtian & He, Jie & Sun, Jinsheng, 2018. "Feasibility assessment of a novel refrigeration FCC gas plant driven by self waste heat," Energy, Elsevier, vol. 145(C), pages 356-366.
    6. Park, Jongseong & Yoon, Sekwang & Oh, Se-Young & Kim, Yoori & Kim, Jin-Kuk, 2021. "Improving energy efficiency for a low-temperature CO2 separation process in natural gas processing," Energy, Elsevier, vol. 214(C).
    7. Cui, Chengtian & Qi, Meng & Zhang, Xiaodong & Sun, Jinsheng & Li, Qing & Kiss, Anton A. & Wong, David Shan-Hill & Masuku, Cornelius M. & Lee, Moonyong, 2024. "Electrification of distillation for decarbonization: An overview and perspective," Renewable and Sustainable Energy Reviews, Elsevier, vol. 199(C).
    8. Chen, Ting & Zhang, Bingjian & Chen, Qinglin, 2014. "Heat integration of fractionating systems in para-xylene plants based on column optimization," Energy, Elsevier, vol. 72(C), pages 311-321.
    9. Cui, Chengtian & Long, Nguyen Van Duc & Sun, Jinsheng & Lee, Moonyong, 2020. "Electrical-driven self-heat recuperative pressure-swing azeotropic distillation to minimize process cost and CO2 emission: Process electrification and simultaneous optimization," Energy, Elsevier, vol. 195(C).
    10. Liu, K. & Zhang, B.J. & Zhang, Z.L. & Chen, Q.L., 2015. "A new double flash process and heat integration for better energy utilization of toluene disproportionation," Energy, Elsevier, vol. 89(C), pages 168-177.
    11. Mehrpooya, Mehdi & Moftakhari Sharifzadeh, Mohammad Mehdi & Rosen, Marc A., 2015. "Optimum design and exergy analysis of a novel cryogenic air separation process with LNG (liquefied natural gas) cold energy utilization," Energy, Elsevier, vol. 90(P2), pages 2047-2069.
    12. Xia, Hui & Ye, Qing & Feng, Shenyao & Li, Rui & Suo, Xiaomeng, 2017. "A novel energy-saving pressure swing distillation process based on self-heat recuperation technology," Energy, Elsevier, vol. 141(C), pages 770-781.
    13. Kazemi, Abolghasem & Mehrabani-Zeinabad, Arjomand & Beheshti, Masoud, 2018. "Recently developed heat pump assisted distillation configurations: A comparative study," Applied Energy, Elsevier, vol. 211(C), pages 1261-1281.
    14. Long, Nguyen Van Duc & Lee, Moonyong, 2015. "A hybrid technology combining heat pump and thermally coupled distillation sequence for retrofit and debottlenecking," Energy, Elsevier, vol. 81(C), pages 103-110.

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