How does a natural gas pipeline work?
At the gas processing facility, natural gas liquids (NGLs) like ethane, propane and butane, are separated from the natural gas, and contaminants like water, carbon dioxide and hydrogen sulfide are removed, before being transported via liquid pipelines to oil refineries for processing. Because natural gas is odourless, a product called methanethiol is added to the remaining natural gas to make it smell like rotten eggs, making it easy for people to detect gas leaks.
Original Article Source Credits: About Pipelines , https://www.aboutpipelines.com/
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Link to Original Article: https://www.aboutpipelines.com/en/pipeline-101/whats-in-the-pipelines/natural-gas-lines/