Oil and Gas

Oil and Gas | Facilities and Surface Operations

Sulphur Recovery

Course Code: N643
Instructors:  Ed Wichert
Course Outline:  Download
Format and Duration
1 days


This one-day course will provide participants with a thorough review of the design, operation and optimization of the modified Claus sulphur recovery process, including a review of process chemistry, process equipment, operating problems, catalyst deactivation, tail gas technologies, and new technologies related to the sulphur recovery industry, such as degassing and pelletizing.  The presentation is designed for personnel involved in the design or operation of sour natural gas processing plants and sulphur recovery facilities.

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 different pieces of equipment in a modified Claus sulphur recovery train
• Select the mode of operation between straight through or split flow
• Identify the factors affecting the recovery efficiency of sulphur
• Discuss the different methods of reheating the process gas stream between catalytic stages
• Understand the processes of deactivation of the catalyst
• Review the different methods of process enhancements
• Describe the different tail gas clean-up methods
• Determine the density of liquid sulphur
• Calculate the recovery efficiency of sulphur of the sulphur plant

Course Agenda

• Sulphur conversion chemistry
• Modified Claus Plant process equipment
• Mode of operation related to H2S in feed gas
• Factors affecting sulphur recovery
• Process gas reheat methods
• Sulphur plant enhancements
• Tail gas cleanup methods
• Sulphur property estimation
• Sulphur degassing methods
• Sulphur pelletizing methods
• Sulphur purity specifications

All sour natural gas has to be treated for the removal of virtually all H2S before it can be distributed to a consumer.  The course is designed to benefit junior design engineers, sour plant supervisors and operators, and persons supplying materials and solvents to the sour gas industry.

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.