Saeid Mokhatab is an internationally renowned process expert in the fields of natural gas transmission and processing. Over the past two decades, he has been actively involved in different phases of several large-scale projects in the natural gas midstream sector, from conceptual design through facilities startup and operational support. He has also provided consulting services and expert guidance to a number of pioneering technology-based and operating companies in Canada and Europe. He has made significant contributions to his areas of expertise through four reference books (published by Elsevier in the United States) and more than 300 technical papers, many of which have been coauthored with leading experts from the largest international engineering companies and prominent process licensors. To bridge the gap between engineering and the science of natural gas, he founded Elsevier's peer-reviewed "Journal of Natural Gas Science and Engineering which has become a leading publication in the field. He has been an editorial contributor for the 14th edition of the GPSA Engineering Data Book, and has served on the editorial or advisory boards of several other notable publications pertaining to the midstream business. He is a lifetime member of the Society of Petroleum Engineers (SPE) and has served that organization in various capacities, including as a member of the Distinguished Achievement for Petroleum Engineering Faculty Award Committee and a member of the Projects, Facilities & Construction Award Committee. He has also been active in other professional organizations, including the Gas Processors Association Europe (GPAE) and the American Society of Mechanical Engineers (ASME). He has delivered several invited lectures and short courses for both commercial and academic institutions, and has served on the technical program and advisory committees of many acclaimed midstream gas conferences worldwide.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.