John Y. Mak is a Senior Fellow and Technical Director at Fluor, the United States, and leads the technology and design development for Fluor chemical and energy division. He is the technical expert and SME with Fluor for over 40 years and has been leading major oil and gas, petrochemical and refinery projects from conceptual designs, feasibility studies, FEED development, detailed engineering, to plant start-up and performance testing. John has made contributions to innovations in natural gas treating and processing, NGL recovery, LNG liquefaction and regasification, synthesis gas purification, and carbon capture methods. John is the co-author of the Handbook of Liquefied Natural Gas, first edition (2013) published by Elsevier, the United States. He has published over 80 technical papers and has frequently presented his findings at technical conferences such as GPA Midstream Convention, GPA Europe, Laurance Reid Gas Conditioning Conference, LNG Summit, Offshore Technology Conference, GASTECH, and China Coal Forum. John is the inventor of over 90 patents and patent pending processes. John is specializing in more complex NGL recovery designs for conventional and unconventional gases, treating high CO2 content gases using physical solvents, acid gas removal with amines, cryogenic nitrogen rejection and helium recovery.