Amadeu K. Sum

Professor, Chemical and Biological Engineering

Amadeu SumMy main research focus is on the study of phase transformation with special focus on water and its many phases, including clathrate, ice, and liquid water. My research is diverse, with depth and breadth from the SCIENCE (fundamental) to the ENGINEERING (applied). For water in the form of clathrate hydrates, I am particularly concerned in understanding gas hydrates in the flow assurance and energy storage by concertedly incorporating multiphase flow. In water science, my research aims to understand the many roles and forms that water interact with chemical, physical, and biological systems, ranging from electrolytes, nanoparticles, and biomembranes. My group has extensive experience in diverse topics as multiphase flow, deposition, nucleation/growth, phase equilibria, metastability, chemical inhibition, structure/composition, structural transition. The research is based on experimental, theoretical, and computational approaches, bringing a comprehensive approach to the study of phase transformations.


  • BS, MS – Colorado School of Mines
  • PhD – University of Delaware
  • Post-Doctoral Study – University of Wisconsin, Madison


426 Alderson Hall
1613 Illinois Street
Golden, CO 80401
Office: (303) 273-3873
Fax: (303) 273-3730

Selected Publications

  • C. L. Bassani, A. M. Melchuna, A. Cameirão, J.-M. Herri, R. E. M. Morales, A. K. Sum, “A Multiscale Approach for Gas Hydrates Considering Structure, Agglomeration, and Trans- portability under Multiphase Flow Conditions: I. Phenomenological Model,” Industrial & Engineering Chemistry Research, 58 (31) 14446-14461 (2019). [doi: 10.1021/acs.iecr.9b01841]
  • J.-H. Sa, A. K. Sum, “Promoting Gas Hydrate Formation with Ice-Nucleating Additives for Hydrate-Based Applications,” Applied Energy, 251, 113352 (2019). [doi: 10.1016/j.apenergy. 2019.113352]
  • Y. Hu, J.-H. Sa, B. R. Lee, and A. K. Sum, “Universal Correlation for Gas Hydrates Suppression Temperature of Inhibited Systems: III. Salts and Organic Inhibitors,” AIChE Journal, 64 (11), 4097-4109 (2018). Editor’s Choice article. [doi: 10.1002/aic.16369]
  • K. J. Kinnari, K. M. Askvik, X. Li, X. Zhang, J.-H. Sa, B. R. Lee, and A. K. Sum, “Hydrate Management of Deadlegs in Oil and Gas Production Systems – Background and Development of Experimental System,” Energy & Fuels, 31 (11), 11783-11792 (2017). [doi: 10.1021/ acs.energyfuels.7b02051]
  • P. G. Lafond, R. G. Grim, and A. K. Sum, “Clathrate Hydrate Equilibrium Modeling: Do Self-Consistent Cell Models Provide Unique Equilibrium Solutions?,” Canadian Journal of Chemistry, 93 (8), 826-830 (2015). Special Issue Honoring John Ripmeester. [doi: 10.1139/cjc-2014-0558]
  • B. C. Barnes, B. C. Knott, G. T. Beckham, D. T. Wu, and A. K. Sum, “Reaction Coordinate of Incipient Methane Clathrate Hydrate Nucleation,” Journal of Physical Chemistry B, 118 (46), 13236-13243 (2014). [doi: 10.1021/jp507959q]

Google Scholar Citations Page

Honors and Awards

  • ASME Best Mechanical Engineering Paper at OTC, Arthur Lubinski Award, 2017
  • DuPont Young Professor Award, 2008-2011