Dry gas, liquefied gas
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What is the difference between dry gas and liquefied gas, and how do their compositions differ?
Generally, natural gas with a methane content of over 90% is called dry gas.
Natural gas associated with oil fields, after undergoing dehydration, purification, and light hydrocarbon recovery processes to yield liquefied gas and light oils, is referred to as dry gas when its main component is methane. Generally, natural gas with a methane content of over 90% is called dry gas. Gas with a methane content of less than 90%, and an alkane content such as that of ethane and propane of over 10%, is called wet gas. Liquefied gas refers to Liquefied Petroleum Gas, which is primarily composed of propane (C3H8) and butane (C4H10); some LPG also contains propylene (C3H6) and butylene (C4H8).
What are the main components of gas?
4# Liu Yishun – Repost: The main component of gas is methane (CH4), a colorless, odorless, and tasteless flammable gas. The conditions for explosion are a concentration of 5 to 16% along with an oxygen level above 12%; exposure to an open flame or temperatures between 650 and 750 degrees can trigger an explosion. The highest explosive power is achieved at a concentration of 9.5%, while combustion occurs but no explosion takes place when the concentration exceeds 16%. This gas is primarily produced by coal deposits or decaying plants, and it exists in either adsorbed or free states. In coal mines, it represents a major threat to miners from day one. Coal mines have complex geological conditions, as well as complex air and working environments. For various reasons, certain concentrations of this gas can lead to explosions when exposed to open flames, making it a major cause of mining accidents and a global problem.
Gas is methane (CH4), also known as coalbed methane
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According to the information I just found, generally, natural gas with a methane content of over 95% is referred to as dry gas. Gas with a methane content of less than 95%, and a content of higher alkanes such as ethane of over 5%, is called wet gas. Has the requirement for content changed now?