Compression
Refrigeration
Gas Processing
Refrigeration
Gas Processing Gas Processing
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The gas we use in our homes for heating or cooking is mostly methane. It contains little water and negligible amounts of unpleasant
substances such as H2S.
Gas from a producing well may be mostly methane ("light" hydrocarbon) or a mixture of light and
heavy hydrocarbons, will be water saturated, may be sour (contain H2S), be acid (contain CO2) or all of these.
To make the gas
from the well suitable for us to use in our communities we have to process the gas:
- dehydrate the gas to remove excess water in a "dehy" unit, using glycol to absorbs the water
- "sweeten" the gas to remove H2S or CO2 in an amine unit, using amine solutions which selectively absorb the H2S and CO2
- control the dewpoints - remove, or "knock out", heavier hydrocarbons ("dewpoint control") to leave a "light" or high methane content gas. Dewpoint control ensures that no hydrocarbon liquids will form in the pipelines that transport the gas to our neighbourhoods.The heavier hydrocarbons we knock out are further refined by distillation into saleable liquid products (LPG, NGL). A dewpoint control plant usually includes the distillation portion.
GPE has experience in
the design and packaging of dehy and dewpoint control plant.
