Oil and Gas

Oil and Gas | Facilities and Surface Operations

Sour Gas Treating

Course Code: N632
Instructors:  Ed Wichert
Course Outline:  Download
Format and Duration
1 days


This one-day course is designed for engineers, technologists, plant supervisors, and plant operators wanting to broaden their understanding of sour gas treating.  The session includes a review of the evolution of sour gas sweetening solvents, and the problems associated with the operation of sour gas treating, such as corrosion and foaming.  Design and operational considerations for the process train equipment are presented.  Scavenger methods of treating sour gas are also discussed.  A comprehensive set of notes is provided.


Excellent course for learning an overview and the particulars of sour gas treating.

Duration and Training Method

One classroom day providing .8 CEU (Continuing Education Credits) or 8 PDH (Professional Development Hours)

Course Overview

Participants will learn to:

• Describe the typical process equipment in a sweetening train
• Appreciate the function of each piece of equipment in a sweetening train
• Select the appropriate sweetening solvent for a sour gas mixture
• Calculate mole loading of acid gas-to-solvent for a circulation rate
• Select the appropriate operating range for solvent concentration
• Describe the basic process equipment design considerations
• Reduce the potential causes of foaming
• Select scavenger sweetening chemical

Course Agenda

•    Review of types of sulphur-containing compounds in sour natural gas
•    Occurrence of sour gas in the world
•    Typical process equipment in a sweetening train
•    Regenerative chemical sweetening solvents
•    Proprietary solvents
•    Physical solvents
•    Mixed solvents
•    Selective removal of H2S
•    Design considerations for components of sweetening train
•    Types of operating problems and solutions
•    Causes of corrosion
•    Scavenger chemical sweetening process

A case review of solvent change from MEA to DEA to MDEA is presented.

This course is intended for engineers and technologists responsible for the selection and design of sweetening processes and for foremen and operators responsible for plant operations.

Ed Wichert

Edward Wichert has an extensive background in the oil and gas industry.  This includes experience at the technical level as well as in management in drilling, oil and gas production and processing, reservoir engineering and economic analysis.  He gained this experience through employment in the oil and gas industry in Alberta, with small, intermediate and large companies.  He holds a B. Sc. degree in Petroleum Engineering and a Master's degree in Chemical Engineering.  His research interests are mainly related to sour gas.  He has published several articles dealing with determining the properties of sour gas and the application of technology in sour gas production and processing, as well as the disposal of acid gas by compression and injection. 

He is an independent oil and gas industry consultant in Calgary, and was Adjunct Professor in the Department of Chemical and Petroleum Engineering at the University of Calgary from 1996 to 2005.  He has presented courses in natural gas technology worldwide, and is the recipient of the Award of Merit from the Canadian Gas Processors Association, in 1994, the Lifetime Achievement in Hydrocarbon Measurement award from the Canadian Institute of Hydrocarbon Measurement, in 2003, and the Project, Facilities and Construction Award from the Society of Petroleum Engineers.  He has recently written a comprehensive book on the technology of sour gas production, gathering, treating, and the different methods of acid gas disposal. 

Affiliations and Accreditation
Member of Retirees, Canadian Gas Processors Association, 2018
Member of APEGA since July, 1961
Lifetime Member of SPE

BSc Degree in Petroleum Engineering, 1958
MEng Degree in Chemical Engineering, 1970
Adjunct Professor in Chemical and Petroleum Engineering, University of Calgary, 1996 to 2005
Recipient of the following industry awards:
 - Award of Merit, Canadian Gas Processors Association, 1994
 - Lifetime Achievement in Hydrocarbon Measurement, Canadian Institute of Hydrocarbon
      Measurement, 2003
 - Project, Facilities and Construction Award, Society of Petroleum Engineers, 2008
Authored or Co-authored over 20 technical articles (CV at www.grayjay.ventures)
Wrote “The Sour Gas, Sulfur and Acid Gas Book”, 2018 (The Book at www.grayjay.ventures)

Courses Taught
N632 - Acid Gas Compression and Injection   
N635 - Metering of Natural Gas and Associated Liquids  
N632 - Sour Gas Treating     


CEU: 0.8 Continuing Education Units
PDH: 8 Professional Development Hours
Certificate: Certificate Issued Upon Completion
RPS is accredited by the International Association for Continuing Education and Training (IACET) and is authorized to issue the IACET CEU. We comply with the ANSI/IACET Standard, which is recognised internationally as a standard of excellence in instructional practices.
We issue a Certificate of Attendance which verifies the number of training hours attended. Our courses are generally accepted by most professional licensing boards/associations towards continuing education credits. Please check with your licensing board to determine if the courses and certificate of attendance meet their specific criteria.