Optimized Gas Treating, Inc. (OGT) was established in 1992 by Ralph Weiland and Jack Dingman for the single purpose of providing a commercial version of a Windows-based software package for simulating acid gas removal with aqueous alkanolamines that uses a fundamental mass and heat transfer rate approach to column modeling. ProTreat is the culmination of more than 30 years of research in gas treating supported by government and industry in both academic and commercial environments. ProTreat is our sole product. Consequently, it receives our undivided attention in maintaining and enhancing its capabilities so that it remains the premier software package for gas treating with amines. OGT’s principals are recognized world experts in most aspects of gas treating — they offer a total of nearly 60 years of relevant experience. Dr. Ralph H. Weiland
Ralph is a cofounder of OGT. He began working in the area of gas treating as an M.A.Sc. student in 1965 and has been active in basic and applied research in this field ever since. He received B.A.Sc., M.A.Sc., and Ph.D. degrees in Chemical Engineering from the University of Toronto, then spent two years as a post-doctoral fellow in applied mathematics at the University of Western Australia. He taught Chemical Engineering for 30 years at universities in Canada, Australia, and the U.S.A. and directed graduate research in gas treating. Ralph was co-developer with Dr. Sivasubramanian of an earlier version of a mass transfer rate-based model for amine columns and commercialized its concepts in the pre-Windows software package, GasPlant.

Dr. M. S. Sivasubramanian
Siva joined OGT as Vice President, Technology in 2002. Siva holds M.S. and Ph.D. degrees in Chemical Engineering from Clarkson University, Potsdam, NY. As part of his Ph.D. research, he was one of the premier developers of computer-based mass and heat transfer rate models for acid gas treating with aqueous alkanolamines. He also holds a B.Tech. in Chemical Engineering from Madras University, India and has attended executive programs at the Harvard Business School, Boston, MA.

Siva has more than 20 years experience in the design and development of state-of-the-art software to simulate such mass transfer operations as distillation and absorption, including 14 years with Aspen Technology, Inc. where he was the principal architect of RateFrac. At OGT he is responsible for the sales and technical direction of the ProTreat simulator, OGT’s mass and heat transfer rate based gas treating process modeling package.