What is wet vs dry gas?
When natural gas is retrieved, it can be considered wet or dry. Dry natural gas is at least 85% methane, but often more. Wet natural gas contains some methane, but also contains liquids such as ethane, propane or butane. The more methane natural gas contains, the dryer it is.
Wet gases refer to natural gasses that contain trace amounts of other liquid "gasses" in them. This is primarily methane gas with a small amount of the other liquid natural gases present in it. Dry gases are those gases that don't come with unwanted liquid traces of other natural gases.
Wet hydrogen gas contains a certain amount of water vapor, while dry hydrogen gas is completely free of water vapor. The presence of water vapor can affect the behavior and properties of hydrogen gas in various applications, so it's important to consider whether wet or dry hydrogen is needed for a specific use.
Dry gas contains around 1 GPM. Rich gas plays are usually considered to have at least 2.5 GPM, and really rich wells may be as high as 9.0 GPM.
A wet gas is any gas with a small amount of liquid present. The term "wet gas" has been used to describe a range of conditions varying from a humid gas which is gas saturated with liquid vapour to a multiphase flow with a 90% volume of gas.
Moist air is lighter and less dense than dry air with the same temperature and pressure. The air that has accumulated moisture becomes lighter and rises to the top.
dry gas, natural gas that consists of little more than methane, producing little condensable heavier hydrocarbon compounds such as propane and butane when brought to the surface. In the United States, dry gases are defined as those that contain less than 0.1 gallon of condensables per 1,000 cubic feet of produced gas.
Natural gas withdrawn from natural gas or crude oil wells is called wet natural gas because, along with methane, it usually contains NGLs—ethane, propane, butanes, and pentanes—and water vapor.
Rich/Wet Gas: Raw natural gas with relatively high concentration of heavier hydrocarbons. Lean/Dry Gas: Raw natural gas with a low concentration of heavier hydrocarbons; dry natural gas or dry gas can also refer gas after it has been processed to remove natural gas liquids.
Also known as dry gas or consumer-grade natural gas, this is gas that is mostly methane and contains only negligible amounts of dissolved liquid hydrocarbons (for example, hexane and octane) and impurities. The higher the methane concentration, the drier the natural gas.
What is dry gas good for?
Dry gas is an alcohol-based additive gas used in automobiles to prevent water from freezing in water-contaminated fuels, thereby restoring the combustive power of gasoline spoiled by water.
Using dry gas is not mandatory, but it's always better to have it in the car's fuel tank. This ensures that the vehicle is not running on water-contaminated gas. It also helps keep the engine working as efficiently as possible. It comes in handy in cold temperatures by keeping the gas diluted and running.
Using dry gas in a car can help remove water from the fuel system and prevent fuel line freeze-up during cold weather. To use dry gas, you typically pour the recommended amount into the gas tank before filling it with fuel.
wet gas, natural gas that contains an appreciable proportion of hydrocarbon compounds heavier than methane (e.g., ethane, propane, and butane).
If you are having gas extracted from the Marcellus Shale, for example, that is considered a wet gas. This is because wet gas contains methane and other compounds like ethane and butane. These ingredients are what makes this gas best for production of Natural Gas Liquids (also referred to as NGLs).
Steam often has droplets of water, which is what is seen water is boiling. Since both water droplets and water vapour are present, this is called wet steam (also called wet vapour). As the mixture gets hotter, the water droplets go away and it becomes dry steam (also called dry vapour).
As has been pointed out, humid air is less dense than dry air.
The amount of water vapor in the air can range from trace amounts up to about 4% by volume. Humidity is a term used to describe the relative amount of water vapor dissolved in the air. In general terms, humid refers to moist air and arid refers to dry air conditions. Warm air can hold more moisture than cold air.
Relative Humidity
The colder the air gets, the less water vapour it can hold. “Relative humidity” is a measure that tells us how much water vapour is actually in the air compared to the maximum amount it can hold.
Explanation: Dry gas is pretty much pure methane (CH4) and is either found naturally this way or is the quality when raw natural gas is scrubbed of any impurities. Its not water that makes "wet gasses" wet. "Wet gas" contains liquid natural gases (LNGs) such as ethane or butane and hence the methane content is lower.
How is dry gas produced?
Dry natural gas, produced from natural gas wells, is output that does not contain a significant amount of liquids or impurities. Dry gas usually is processed and transported via pipelines to distribution networks and end-users.
Dry gas is an alcohol-based fuel additive containing isopropyl or methanol. Alcohol can be corrosive, and non-flex fuel systems aren't built to handle it, so using dry gas depends on your vehicle. Your vehicle might develop rust and driveability issues if you use bad gas.
Unlike dry gas, wet gas contains heavier compounds in addition to methane – such as ethane (or C2), propane (C3) and butane (C4). Wet gas mixtures may be gaseous or may contain liquids. These natural gas liquids (NGLs) can be broken down and their individual components sold separately.
"Dry gas" is not a specific chemical compound, but rather a term used to refer to a gaseous mixture that contains a high concentration of methane and other hydrocarbons, with very little water vapor.
2: The total pressure exerted by a wet gas is equal to the sum of the partial pressure of the gas itself + the vapor pressure of water at that temperature. (At 20°C the vapor pressure of water is 17.3 mmHg.)
