• A. Aldroubi, U. Zahid, and H. Baaqeel, Design and simulation of hydrate-based desalination using R-152a refrigerant, 34th European Symposium on Computer Aided Process Engineering (ESCAPE33), Florence, Italy, 2 – 6 June, 2024.
  • R.G Pangestu and U. Zahid, Process Integration of Urea Production with Methane Pyrolysis for Reduced Carbon Emissions, 34th European Symposium on Computer Aided Process Engineering (ESCAPE33), Florence, Italy, 2 – 6 June, 2024.
  • Abdalla, M.G. Mohammed, and U. Zahid, Design of carbon neutral methanol production via integration of renewable hydrogen and dry reforming process, 34th European Symposium on Computer Aided Process Engineering (ESCAPE33), Florence, Italy, 2 – 6 June, 2024.
  • U. Zahid, Cost-Effective Methanol Production from Vacuum Residue Gasification. In 2023 AIChE Annual Meeting. AIChE, Orlando, US, 5 – 10 Nov, 2023.
  • U. Zahid & S. Khalafalla, Integrated Methanol and Hydrogen Production via Natural Gas Autothermal Reforming. Calgary, Canada, 29 Oct – 1 Nov, 2023.
  • M. Awwad & U. Zahid, “Technoeconomic study on the thermochemical recycling of waste plastic to produce dimethyl ether“, 33rd European Symposium on Computer Aided Process Engineering (ESCAPE33), Athens, Greece, 18 – 21 June, 2023.
  • H. Alibrahim, S. Khalafalla,  U. Ahmed, and U. Zahid, “Blue Syngas Synthesis via the Integration of Gasification and Reforming Processes“, 14th International Symposium on Process Systems Engineering – PSE 2021+, 19-23 June, 2022.
  • S. Khalafalla, H. Alibrahim, F. Al-Rowaili, and U. Zahid, “Design and simulation of methanol synthesis using heavy residues with carbon utilization“, European Symposium on Computer Aided Process Engineering (ESCAPE32), Toulouse, France, 12 – 15 June, 2022.
  • M. Awwad & U. Zahid, “Design and Simulation of Thermo-Chemical Plastic Waste Recycling to Produce Di-Methyl Ether (DME), 2021 AiChE Annual Meeting, Boston, US,  7 – 11 Nov, (2021.
  • U. Ahmed & U. Zahid, “Techno-economic assessment of conceptual design for methanol production using coal and natural gas based parallel process configuration“, European Symposium on Computer Aided Process Engineering (ESCAPE30), Milano, Italy, 24 – 27 May, 2020.
  • U. Zahid & A.Al-Amri, “Performance Enhancement of Acid Gas Cleaning Units in the Natural Gas Processing via Design Modification“, European Symposium on Computer Aided Process Engineering (ESCAPE30), Milano, Italy, 24 – 27 May, 2020.
  • U. Zahid & A. Al-Qadri, “Design Development of a Novel Sour Water Stripper“, AiChE, Orlando, US, Nov 10 – Nov 15 (2019).
  • U. Zahid & H. Alibrahim, “Design Development of an Integrated Reforming and Gasification Technology for Syngas Production”, AiChE, Orlando, US, Nov 10 – Nov 15 (2019).
  • H. Alibrahim, S. SeedAhmed, U. Ahmed, U. Zahid, “Comparative analysis of gasification and reforming technologies for the syngas production“, European Symposium on Computer Aided Process Engineering (ESCAPE29), Eindhoven, Netherlands, 16 – 19 June, 2019.
  • U. Zahid, A. Al-Qadri, B. Al-Mousa, A. Al-Nasser, U. Ahmed, “Design of a novel sour water stripping unit”, European Symposium on Computer Aided Process Engineering (ESCAPE29), Eindhoven, Netherlands, 16 – 19 June, 2019.
  • U. Ahmed, U. Zahid, “Techno-economic Assessment of Future Generation IGCC Processes with Control on Greenhouse Gas Emissions“, European Symposium on Computer Aided Process Engineering (ESCAPE29), Eindhoven, Netherlands, 16 – 19 June, 2019.
  • U. Zahid, “Design and Economic Analysis of Liquid CO2 Injection System“, Greenhouse Gas Technologies (GHGT-14), Melbourne, Australia, 21 – 26 Oct, 2018
  • U. Zahid, “Design and Evaluation of Thermodynamic Conditions for an Off-Shore Topside CO2 Injection System,” AiChE, Minneapolis, US, Oct 29 – Nov 3 (2017)
  •  U. Zahid, Y. H. Kim, U. Ahmed, “Topside process design for the liquid CO2 injection”, European Symposium on Computer Aided Process Engineering (ESCAPE27), Barcelona, Spain, 1-5 Oct, 2017.
  • U. Zahid, F. N Al Rowaili, M. K Ayodeji, U. Ahmed, “Performance Analysis of Industrial CO2 Capture from Natural Gas using Diglycolamine”, European Symposium on Computer Aided Process Engineering (ESCAPE27), Barcelona, Spain, 1-5 Oct, 2017.
  • U. Zahid, U. Ahmed, C. Han, “Design and Economic Analysis of IGCC Power Plants with CO2 Capture”, AiChE, San Francisco, US, Nov 13-18 (2016)
  • U. Zahid, J. An, U. Lee, C. Han, “Effect of Liquefaction Plant Performance and Location on the Cost of CO2 Transport”, Computer Aided Chemical Engineering, Volume 33, Pages 1651-1656 (2014)
  • U. Zahid, J. An, U. Lee, C. Han,Techno-Economic Assessment of CO2 Liquefaction for Ship Transportation, The 4th Korea CCS International Conference, Jeju Korea, February 2014.
  • U. Zahid, J. Kim, J. An and C. Han, Transport and Storage of Captured Carbon Dioxide in South Korea, AiChE, San Francisco, US, Nov 3-8 (2013)
  • U. Zahid, C. Park and C. Han, One-Dimensional Modeling and Process Alternative for Biomass Torrefaction, AiChE, San Francisco, US, Nov 3-8 (2013)
  • U. Zahid, Y. Lim, C. Han, “Choosing the suitable Carbon dioxide Storage Location in Sedimentary Basins of Korea” Computer Aided Chemical Engineering, Volume 30, Pages 71–75 (2012).
  • U. Zahid, Y. Lim, C. Han; “CO2Geological Storage: Case Study ofKorea and Pakistan”, Pg 101-102, 8thKorea-China Clean Energy Workshop, Daejeon, November 2010.
  • Zahid, J. An, U. Lee, C. Han, Effect of liquefaction plant location on the cost of CO2 transport, KiChE conference, Daegu, October 2013.
  • Zahid, U. Lee, C. Han, Pipeline Transport of CO2, KIGAS conference, Jeju, November 2012.
  • Zahid, Y. Lim, M. Ilyas, C. Han, Economic Assessment of CO2 Storage in Sedimentary Basins of Korea, KIGAS conference,Chungcheong, May 2011.
  • Zahid, Beenish, C.Han, Potential for CO2 Storage in Pakistan with Enhanced Coal Bed Methane (ECBM), KiChE conference, Daejeon, October 2010.
  • Zahid, C. Han, CO2 Storage Potential in Kunsan, Fuke and Ulleung basins of Korea, KIGAS conference, Jeju, October 2010.
  • Zahid, Y. Lim, C. Han, Options for transporting CO2 from power plant to storage- Korea case, KIGAS conference, Ansan, May 2010.