April 2005

Process Optimization

Quickly estimate hydrate formation conditions in natural gases

Using this simple technique to predict unfavorable conditions can save time and cost

Mokhatab, S., Consultant; Towler, B., University of Wyoming

Gas hydrates have detrimental effects on operating systems as hydrate crystals deposit on pipe walls and accumulate as large plugs, resulting in blocked pipelines and over pressuring.1, 2 These plugs can also be accelerated due to pressure gradients which can result in considerable damage to transportation facilities. Due to these problems, preventing hydrate solid formation in gas transmission systems has been of considerable interest for many years. In order to prevent hydrate formation (HF) in gas transmission lines, it is important to understand hydrate-stability conditions. This will be critical to developing new and improved technologies for controlling gas HF in transmission pipelines

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