Natural gas liquid (NGL) distillation process using driving force and thermal pinch analysis methods: Energy and economic assessment

  • Munawar Zaman Shahruddin Faculty of Chemical Engineering, Universiti Teknologi MARA, Selangor, Malaysia and School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor, Malaysia
  • Mohamad Hamidi Asri Faculty of Chemical Engineering, Universiti Teknologi MARA, Selangor, Malaysia
  • Rohani Mohd Zin Faculty of Chemical Engineering, Universiti Teknologi MARA, Selangor, Malaysia
  • Ahmad Nafais Rahimi School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor, Malaysia
  • Muhammad Afiq Zubir School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor, Malaysia
  • Muhammad Fakhrul Islam Zahran School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor, Malaysia
  • Norazana Ibrahim School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor, Malaysia
  • Mohd Kamaruddin Abd. Hamid School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor, Malaysia

Abstract

Distillation column is one of the effective unit operations that is commonly used to separate chemical mixtures. The only drawback of this separation process is its huge energy consumption especially for a multicomponent separation process which involves a series of distillation columns. Therefore, an optimal sequence must be determined to address the issue. This research proposes the methodology to determine the optimal sequence of distillation columns by using driving force method. Then, thermal pinch analysis is applied to obtain further energy saving in the process. The case study selected is a distillation process to recover 5-component of natural gas liquid (NGL) mixture. Based on the input data, the driving force sequence is determined first and simulated together with a conventional sequence (direct sequence). Then, the extracted data from the simulation will be used for thermal pinch analysis via problem table algorithm (PTA). From the results of PTA, energy consumption between both sequences were compared including the energy consumption before and after the thermal pinch analysis. In addition, economic analysis has been performed as well to indicate which sequence has lower capital and operating costs based on the proposed heat exchanger network (HEN). According to the results, the combination of the driving force and thermal pinch analysis methods has successfully recorded 48% of energy savings and operating cost, and 58.2% capital cost saving compared to the conventional sequence (direct sequence). Therefore, it can be said that the proposed framework has a great potential to be employed towards the process and economic feasible distillation process.

References

A. E. Adeleke, O. J. Alamu, O. A. Olawal, P. O. Aiyedun, O. U. Dairo, (2012). A Parametric Study of The Effect of Relative Volatility of The Feed on The Design of Distillation Column of a Bioethanol Plant Using Cassava as Feedstock. Transnational Journal of Science and Technology. 2. 74–88.

A. N. Rahimi, M. F. Mustafa, M. Z. Zaine, N. a. M. Rosely, M. F. I. Zahran, M. Z. Shahruddin, M. A. Zubir, N. Ibrahim, K. A. Ibrahim, M. K. A. Hamid (2017). Olefin Mixture Direct Sequence Retrofitting and Feed Compositions Sensitivity Analysis. Energy Proceedia. 142. 2598–2603.

A. N. Rahimi, M. F. Mustafa, M. Z. Zaine, N. Ibrahim, K. A. Ibrahim, N. Yusoff, E. M. Al-Mutairid, M. K. A. Hamid, (2015). Energy Efficiency Improvement in the Natural Gas Liquids. Chemical Engineering Transactions. 45. 7.

A. W. Westerberg, (2004). A Retrospective on Design and Process Synthesis. Computers & Chemical Engineering. 28. 447–458.

B. Linnhoff & J. R. Flower, (1978). Synthesis of Heat Exchanger Networks: I. Systematic Generation of Energy Optimal Networks. AlChE Journal. 24. 633–642.

C. Cui, H. Yin, J. Yang, D. Wei, J. Sun, C. Guo, (2016). Selecting Suitable Energy-Saving Distillation Schemes: Making Quick Decisions. Chemical Engineering and Processing: Process Intensification. 107. 138–150.

D. S. S. T. Gmbh, (2014). Pure Component Equations. Oldenburg Germany: DDBST Software & Separation Technology GmbH.

E. Bek-Pedersen & R. Gani, (2004). Design and Synthesis of Distillation Systems Using A Driving-Force-Based Approach. Chemical Engineering and Processing: Process Intensification. 43. 251–262.

E. Bek-Pedersen, R. Gani, O. Levaux, (2000). Determination of Optimal Energy Efficient Separation Schemes Based on Driving Forces. Computers and Chemical Engineering. 24. 253–259.

G. Sobočan & P. Glavič, (2002). A Simple Method for Systematic Synthesis of Thermally Integrated Distillation Sequences. Chemical Engineering Journal. 89. 155–172.

H. Yoo, M. Binns, M.-G. Jang, H. Cho, J.-K. Kim, (2015). A Design Procedure for Heat-Integrated Distillation Column Sequencing of Natural Gas Liquid Fractionation Processes. Korean Journal of Chemical Engineering. 33. 405–415.

J. G. Speight, (2011). The Refinery of the Future, Burlington, MA 01803, USA, Elsevier.

M. A. Zubir, A. N. Rahimi, M. F. I. Zahran, M. Z. Shahruddin, K. A. Ibrahim, M. K. Abd. Hamid, (2017). Systematic design of energy efficient distillation column for alcohol mixture. Energy Procedia. 142. 2630–2635.

M. A. Zubir, M. F. I. Zahran, M. Z. Shahruddin, K. A. Ibrahim & M. K. A. Hamid, (2019). Economic, Feasibility, and Sustainability Analysis of Energy Efficient Distillation Based Separation Processes. Chemical Engineering Transactions. 72. 109–114.

M. F. Mustafa, N. a. F. A. Samad, K. A. Ibrahim & M. K. A. Hamid, (2014). Methodology Development for Designing Energy Efficient Distillation Column Systems. Energy Procedia. 61. 2550–2553.

M. F. Mustafa, (2014). Retrofitting Direct Sequence Distillation Columns Using Driving Force Method. Master’s Degree Thesis, Universiti Teknologi Malaysia.

M. Z. Shahruddin, A. N. Rahimi, M. A. Zubir, M. F. I. Zahran, K. Ibrahim & M. K. A. Hamid, (2020). Energy saving potential of 6-component aromatic mixture via Energy Integrated Distillation Columns Sequence (EIDCS) method. IOP Conference Series: Materials Science and Engineering. 884.

M. Z. Shahruddin, A. N. Rahimi, M. A. Zubir, M. F. I. Zahran, K. A. Ibrahim & M. K. A. Hamid, (2017). Energy Integrated Distillation Column Sequence by Driving Force Method and Pinch Analysis for Five Components Distillation. Energy Procedia. 142. 4085–4091.

M. Z. Shahruddin, T. Xinyi, A. N. Rahimi, M. A. Zubir, M. F. I. Zahran, K. A. Ibrahim & M. K. Abd. Hamid. Thermal Pinch Analysis Application for Driving Force Distillation Columns Sequence of 5-Component Alcohol Mixture. International Graduate Conference on Engineering, Science and Humanities (IGCESH), 13–15 August 2018 (2018) UTM Skudai, Johor Bahru.

M. Z. Shahruddin, T. Xinyi, A. N. Rahimi, M. A. Zubir, M. F. I. Zahran, K. A. Ibrahim & M. K. Abd. Hamid, (2019). Thermal Pinch Analysis Application on Distillation Columns Sequence of 5-Component Alcohol Mixture. Chemical Engineering Transactions. 72. 271–276.

M. Z. Zaine, M. F. Mustafa, N. Ibrahim, K. A. Ibrahim & M. K. A. Hamid, (2015). Minimum Energy Distillation Columns Sequence for Aromatics Separation Process. Energy Procedia. 75. 1797–1802.

N. Quirante, J. A. Caballero & I. E. Grossmann, (2017). A novel disjunctive model for the simultaneous optimization and heat integration. Computers & Chemical Engineering. 96. 149–168.

S. Hernandez, J. Gabrielsegoviahernandez & V. Ricoramirez, (2006). Thermodynamically equivalent distillation schemes to the Petlyuk column for ternary mixtures. Energy. 31. 2176–2183.

W. Seider, J. Seader & D. Lewin, (2004). Product and Process Design Principles, New York, Wiley.

X. Li & A. Kraslawski, (2004). Conceptual Process Synthesis: Past and Current Trends. Chemical Engineering and Processing: Process Intensification.43. 583–594.
Published
2020-12-31
How to Cite
SHAHRUDDIN, Munawar Zaman et al. Natural gas liquid (NGL) distillation process using driving force and thermal pinch analysis methods: Energy and economic assessment. Malaysian Journal of Chemical Engineering and Technology (MJCET), [S.l.], v. 3, n. 2, p. 18-24, dec. 2020. ISSN 2682-8588. Available at: <http://myjms.mohe.gov.my/index.php/mjcet/article/view/10996>. Date accessed: 20 apr. 2021. doi: https://doi.org/10.24191/mjcet.v3i2.10996.

Most read articles by the same author(s)

Obs.: This plugin requires at least one statistics/report plugin to be enabled. If your statistics plugins provide more than one metric then please also select a main metric on the admin's site settings page and/or on the journal manager's settings pages.