What type of natural gas is characterized as containing significant sulfur compounds?

Natural gas that is characterized as containing significant sulfur compounds is often referred to as "not sweet gas." The term "sweet gas" is used to describe natural gas that has little to no hydrogen sulfide (H2S) and other sulfur compounds, making it safe and pleasant to work with.

In contrast, "not sweet gas" indicates the presence of these sulfur compounds, which can be quite hazardous and require treatment to remove or manage the sulfur content before the gas can be safely used or transported. This distinction is crucial because gases with higher sulfur content pose challenges in processing, environmental concerns, and safety risks in handling and utilizing the gas.

Understanding the difference in terminology is important for safety and operational practices in the gas industry. Sweet gas is generally easier to handle due to its lower toxicity, while not sweet gas requires additional measures in terms of safety and processing.