DAVID NUNUK / SCIENCE PHOTO LIBRARY DAVID NUNUK / SCIENCE PHOTO LIBRARY
Sour gas plant. Industrial plant for treating sour gas. Sour gas is natural gas which is rich in the acidic compound, hydrogen sulphide (formula H2.S). At this plant, the hydrogen sulphide impurity is broken down into inert sulphur which can be marketed as a by-product. Once purified the natural gas is known as 'sweet' gas. Photographed in Alberta, Canada.
Model release not required. Property release not required.