Cost Reduction of Fluid Catalytic Cracking Unit in Kaduna Refining and Petrochemical Company using Pinch Technology


  • Abdulkareem Abubakar Ahmadu Bello University, Zaria


Pinch technology, FCC unit, Cost targeting, Area targeting, Trade-off


Pinch technology is one of the most powerful methodologies of process integration that allows industries to increase their profitability through reductions in energy, water and raw materials consumption.  In this study, reduction in the total annual cost of heat exchanger network (HEN) of Fluid Catalytic Cracking (FCC) unit in Kaduna Refining and Petrochemical Company (KRPC), Kaduna was determined. With the help of pinch technology, the reduction was achieved by first determining optimum minimum temperature difference by trading off energy cost and capital cost targets as a function of minimum temperature difference. Thereafter, the total annual cost obtained at the optimum minimum temperature difference was compared with total annual cost of existing design. The results of the analysis showed that the optimum minimum temperature difference was 12℃, the total annual costs of the existing design and the optimum-minimum-temperature-difference based cost were $8.7 and $7.1 Million respectively. This amounted to percentage reduction in the total annual cost of 18.4% which means that about $1.6 Million would been saved annually using the optimum minimum temperature difference to design the HEN of the FCC unit.


Abdul Aziz, E.; S. R. Wan Alwi; J. S. Lim; Z. Abdul Manan and J. J. Klemes. (2017). An integrated Pinch Analysis Framework for Low CO2 Emissions Industrial Site Planning. Journal of Cleaner Production, 146: 125 – 138.

Adejoh A. Z.; D. F. Aloko and I. J. Muhammad. (2013). Energy Integration of Vacuum Distillation Plant Technology. Advances in Applied Science Research, 264 – 265.

Aguitoni, M. C.; L. V. Pavão; P. H. Siqueira; L. Jiménez and M. A. S. S. Ravagnani. (2018). Synthesis of a Cost-Optimal Heat Exchanger Network Using Genetic Algorithm and Differential Evolution. Chemical Engineering Transactions, 70: 979 – 984.

Akgun, N. and Ozcelik, Z. (2017). Debottlenecking and Retrofitting by Pinch Analysis in a

Chemical Plant. American Journal of Energy Engineering, 5(5): 39 – 49.

Akpa J. G.; R. I. Uzono and K. K. Dagde. (2018). Energy Integration of Butene-1 Production Plant Using Pinch Technology. International Journal of Energy and Environmental Research, 7(1): 1 – 17.

Anastasovski, A.; P. Rašković and Z. Guzović. (2017). Design and Analysis of Heat Recovery System in Bioprocess Plant. Energy Conversion and Management, 104: 32 – 43.

Anna G. (2011). Pinch Analysis of Nynas Refinery. Master Thesis, Chalmers University of Technology, Sweden.

Ateeq, A. A.; M. A. Taher and F. A. Al-Salam. (2017). Energy Saving in Atmospheric Distillation Unit by Retrofit Design of Heat Exchanger Networks of Al-Basra Refinery. International Journal of Engineering Research and Technology, 6(4): 425 – 430.

Attarakih, M.; M. Abu-Khader; T. Saieq and H. Bart. (2013). Ethane Production Plant for Better Energy Integration and Cost Reduction in Jordan. Journal of Chemical Technology and Engineering, 48(3): 265 – 276.

Auta, M.; A. S. Ahmed and H. F. Akande. (2012). Comparative Studies of Traditional (Non-Energy Integration) and Energy Integration of Catalytic Reforming Unit Using Pinch Analysis. Nigerian Journal of Technological Development, 9(1): 1-10.

Barambu, N. U.; U. A. El-Nafaty and I. A. Saeed. (2017). Energy Integration of Sugar Production Plant Using Pinch Analysis: A Case Study of Savanah Sugar Company Yola, Nigeria. Advances in Applied Science Research, 8(2):20 – 29.

Chang, C.; X. Chen; Y. Wang and X. Feng. (2017). Simultaneous Optimization of Multi-Plant Heat Integration Using Intermediate Fluid Circles. Energy, 121: 306 – 317.

Dezhen, C.; S. Yang; X. Luo; Q. Wen and H. Ma. (2007). An Explicit Solution for Thermal

Calculation and Synthesis of Superstructure Heat Exchanger Networks. Chinese Journal of Chemical Engineering, 15: 296 – 301.

El-Halwagi, M. M. (2006). Process Integration. Academic Press Publisher, Cambridge, Boston, USA.

Gunderson, T. and Naess, L. (1988). The Synthesis of Cost Optimal Heat Exchanger Network: An Industrial Review. Computers and Chemical Engineering, 12: 503 – 530.

Hallale, N. and Fraser, D. M. (2000). Capital and Total Cost Targets for Mass Exchange Networks, Part 2: Detailed Capital Cost Models, Computer and Chemical Engineering, 23: 1681 – 1699.

Hojjati, M. R.; M. R. Omidkhah and M. H. Panjeh Shahi. (2004). Cost Effective Heat Exchanger Network Design with Mixed Materials of Construction. Iranian Journal of Chemical Engineering, 23(2): 89 – 100.

Leni C. E.; D. G. Mark; G. Ferdinand and G. Nurak. (2015). Brewery Heat Exchanger Networks Design and Optimization Based on Pinch Analysis at a Single ΔTmin. Philippine Engineering Journal, 36(1): 54 – 75.

Li, Z.; X. Jia; D. C. Y. Foo and R. R. Tan. (2016). Minimizing Carbon Footprint Using Pinch Analysis: The Case of Regional Renewable Electricity Planning in China. Applied Energy, 184: 1051 – 1062.

Linnhoff, B. and Hindmarsh, E. (1983). The Pinch Design Method for Heat Exchanger Networks.

Chemical Engineering Science. 38: 745 –763.

Linnhoff, B. and Vredeveld, D. R. (1984). Pinch Technology Has Come of Age. Chemical Engineering Progress, 80(7): 33 – 40.

Lukman, Y.; B. Suleiman and O. S. Azeez. (2016). Evaluation of Total Annual Costs of Heat Exchanger Networks Using Modified Pinch Analysis. Nigerian Journal of Technology (NIJOTECH), 35(3): 537 – 543.

Lukman, Y.; B. Suleiman; B. and O. S. Azeez. (2015). Analysis of Heat Exchanger Networks for Minimum Total Annual Cost Using Pinch Analysis. Paper presented at International Engineering Conference, 1 – 7, Federal University of Technology Minna, Nigeria.

Manan, Z.A.; W. N. R. Mohd Nawi; S. R. Wan Alwi and J. J. Klemes. (2017). Advances in Process Integration Research for CO2 Emission Reduction: A review. Journal of Cleaner Production, 167: 1 – 13.

Marton, S.; E. Svensson; R. Subiaco; F. Bengtsson and S. Harvey. (2017). A Steam Utility Network Model for the Evaluation of Heat Integration Retrofits – A Case Study of an Oil Refinery. Journal of Sustainable Development of Energy, Water and Environment Systems, 5(4): 560 – 578.

Olakunle, M. S. and Abubakar, A. (2011). Heat Integration of Fluid Catalytic Cracking (FCC) Unit Using Pinch Analysis – A Case Study of Kaduna Refining and Petrochemical Company FCC Unit. Nigerian Journal of Engineering, 18(1): 40 – 46.

Paiko, I. I.; O. S. Azeez; N. Makwashi and D. Zhao. (2017). Pinch Analysis in Optimising Energy Consumption on a Naphtha Hydrotreating Unit in a Refinery. Petroleum & Petrochemical Engineering Journal, 1(5): 000126.

Pritam S. R.; S. Bandyopadhyay; D. C. Y. Foo; R. R. Tan and V. Kazantzi. (2017). A pinch Analysis Approach to Project Selection Problem. Paper presented in 6th International Symposium on Advanced Control of Industrial Processes (AdCONIP), 49 – 54, Taipei, Taiwan.

Rathjens, M. and Fieg, G. (2018). Design of Cost-Optimal Heat Exchanger Networks Considering Individual, Match-Dependent Cost Functions. Chemical Engineering Transactions, 70: 601 – 606.

Rathjens, M. and Fieg, G. (2019). Cost-Optimal Heat Exchanger Network Synthesis Based on a Flexible Cost Functions Framework. Energies, 12(784): 1 – 17.

Rathjens, M.; T. Bohnenstädt; G. Fieg and O. Engel. (2016). Synthesis of Heat Exchanger Networks Taking into Account Cost and Dynamic Considerations. Procedia Engineering, 157: 341 – 348.

Rokni, M. (2016). Introduction to Pinch Technology. Report, Technical University of Denmark (DTU), Kongens Lyngby, Demark.

Sasikala, R. (2017). Water and Wastewater Optimization in Multiple Contaminants Network Using Water Pinch Technology. International Journal of Research – Granthaalayah, 5(8:SE): 1 – 7.

Skolpap, W. and Owa, N. (2018). Pinch Analysis of a Commercial-Scale Sugarcane Wax

Accelerated-Solvent Extraction and Purification Process. The International Journal of Engineering and Science, 7(7): 25-34.

Smith, R. (2005). Chemical process design and integration. John Wiley & Sons Ltd, England.

Souza, R. D.; S. Khanam and B. Mohanty. (2016). Synthesis of Heat Exchanger Network Considering Pressure Drop and Layout of Equipment Exchanging Heat. Energy, 101: 484 – 495.

Tibasiima, N. and Okullo, A. (2017). Energy Targeting for a Brewing Process Using Pinch Analysis, Energy and Power Engineering, 2017, 9, 11 – 21.

Towler, G. and Sinnott, R. (2013). Chemical Engineering Design: Principles, Practice and Economics of Plant and Process Design, 2nd Edition, Butterworth-Heinemann publications, 225 Wyman Street, Waltham, MA 02451, USA.

Turton, R.; R. C. Bailie; W. B. Whiting and J. A. Shaeiwitz. (2009). Analysis, Synthesis, and Design of Chemical Processes, 3rd Edition, Prentice Hall, Upper Saddle River, New Jersey, United State.

Ulyev, L.; M. Vasiliev and S. Boldyryev. (2018). Process Integration of Crude Oil Distillation with Technological and Economic Restrictions. Journal of Environmental Management, 222: 454 – 464.

Venkatesh, G. (2019). Pinch Analysis, as a Technique for Optimising Resource Utilisation and Promoting Environmental Sustainability: A Review of Recent Case Studies from the Developing World and Transition Economies. Resources Environment and Information Engineering, 1(1): 1-17.

Verma, S. and Kumar, S. Y. (2017). Process Integration Using Pinch Analysis: A Cement Industry Case Study. International Journal of Applied Engineering Research, 12(24): 14760 – 14763.

Yoro, K. O.; A. J. Isafade and M. O. Daramola. (2018). Sequential Synthesis of Mass Exchanger Networks for CO2 Capture. Paper Presented at World Congress on Engineering and Computer Science, 503 – 508, San Francisco, USA.

Yoro, K. O.; P. T. Sekoai; A. J. Isafade and M. O. Daramola. (2019). A Review on Heat and Mass Integration Techniques for Energy and Material Minimization during CO2 Capture. International Journal of Energy and Environmental Engineering, 10(3): 367-387.