Final answer:
In natural gas processing, dehydration, separating liquid hydrocarbons, and removing H2S are included, but fracturing is an extraction technique, not a purification process.
Step-by-step explanation:
The process of purifying natural gas involves multiple steps to remove different types of impurities. Common processes in natural gas treatment include dehydration, to remove water; separating liquid hydrocarbons such as butane and propane; and removing H2S (hydrogen sulfide) and other acidic gases to ensure the gas is safe for consumption and transportation. The purification process does not typically include fracturing, also known as hydraulic fracturing or 'fracking', which is a method used to extract gas from the ground rather than to purify it once extracted.
During the purification of natural gas, undesirable components are removed, and the by-products are segregated and can be used for other applications. For instance, liquid hydrocarbons like propane can be used for heating or cooking, while the dried gas is transported through pipelines. The goal is to deliver cleaner, consumer-ready natural gas.