Search results
Aug 30, 2015 · Discover the diverse types of gases, classified as Natural and Synthetic, based on Source, Chemistry, and Applications with Examples.
- Distillation
This is collected in a separate flask, and it can be easily...
- Sublimation Process
Matter converts into different forms as solid, liquids and...
- Plant Tissue Culture
Plant Tissue Culture is a process of growing isolated plant...
- Flame Photometry
There are different types of burners like Total consumption...
- Nitrogen
Nitrogen is natural gas available in the air with a...
- Hydrogen
Hydrogen is one of the gases which can be used as a mobile...
- Metal
10. Security systems. Metals play an important role in...
- Biomolecule
Different types of biomolecules are available in different...
- Distillation
- Overview
- Hydrocarbon content
- Nonhydrocarbon content
- Thermal and physical properties
- Measurement systems
Natural gas is a hydrocarbon mixture consisting primarily of saturated light paraffins such as methane and ethane, both of which are gaseous under atmospheric conditions. The mixture also may contain other hydrocarbons, such as propane, butane, pentane, and hexane. In natural gas reservoirs even the heavier hydrocarbons occur for the most part in g...
Natural gas is a hydrocarbon mixture consisting primarily of saturated light paraffins such as methane and ethane, both of which are gaseous under atmospheric conditions. The mixture also may contain other hydrocarbons, such as propane, butane, pentane, and hexane. In natural gas reservoirs even the heavier hydrocarbons occur for the most part in g...
Other gases that commonly occur in association with the hydrocarbon gases are nitrogen, carbon dioxide, hydrogen, and such noble gases as helium and argon. Nitrogen and carbon dioxide are noncombustible and may be found in substantial proportions. Nitrogen is inert, but, if present in significant amounts, it reduces the heating value of the mixture; it must therefore be removed before the gas is suitable for the commercial market. Carbon dioxide is removed in order to raise heating value, reduce volume, and sustain even combustion properties.
Often natural gases contain substantial quantities of hydrogen sulfide or other organic sulfur compounds. In this case, the gas is known as “sour gas.” Sulfur compounds are removed in processing, as they are toxic when breathed, are corrosive to plant and pipeline facilities, and are serious pollutants if burned in products made from sour gas. However, after sulfur removal a minute quantity of a noxious mercaptan odorant is always added to commercial natural gas in order to ensure the rapid detection of any leakage that may occur in transport or use.
Commercial natural gas stripped of NGL and sold for heating purposes usually contains 85 to 90 percent methane, with the remainder mainly nitrogen and ethane. It usually has a calorific, or heating, value of approximately 38 megajoules (MJ; million joules) per cubic metre or about 1,050 British thermal units (BTUs) per cubic foot of gas.
Methane is colourless, odourless, and highly flammable. However, some of the associated gases in natural gas, especially hydrogen sulfide, have a distinct and penetrating odour, and a few parts per million are sufficient to impart a decided odour to natural gas.
The amounts of gas accumulated in a reservoir, as well as produced from wells and transported through pipelines, are measured by volume, calculated in either cubic metres or cubic feet. The calculations are made with reference to the volume occupied by the gas at standard atmospheric pressure (i.e., 760 mm of mercury, or 14.7 pounds per square inch) and at a temperature of 15 °C (60 °F). Since gas in the reservoir is compressed by the high pressures exerted underground, it expands upon reaching the surface and thus occupies more space. However, since its volume is calculated in reference to standard conditions of temperature and pressure, this expansion does not constitute an increase in the amount of gas produced. Natural gas reserves are usually measured in billions and trillions of cubic metres (bcm and tcm) or in billions and trillions of cubic feet (bcf and tcf). Volumes produced on a daily basis at wells are frequently measured in thousands and millions of cubic metres (Mcm and MMcm) or in thousands and millions of cubic feet (Mcf and MMcf). By tradition the natural gas industry uses the Roman numeral M to designate 1,000 and MM (1,000 × 1,000) to denote one million.
On the market, natural gas is usually bought and sold not by volume but by calorific value, noted above as approximately 38 MJ per cubic metre or about 1,050 BTUs per cubic foot. These units are frequently abbreviated as MJ/m3 and BTU/ft3. In practice, purchases of natural gas are usually denoted in much larger units, such as GJ (gigajoules, billions of joules) and MMBTUs (millions of BTUs).
Sep 1, 2021 · Gases can be pure elements, compounds, or mixtures. They can contain solitary atoms, ions, and compounds. Gases have many uses. Oxygen is one of the most important gases for humans. Carbon dioxide is one of the most important gases for all life on Earth because plants need it for photosynthesis.
- Anne Marie Helmenstine, Ph.D.
The natural gas industry is extracting an increasing quantity of gas from challenging, unconventional resource types: sour gas, tight gas, shale gas, and coalbed methane. There is some disagreement on which country has the largest proven gas reserves.
Greenhouse gases are gases—like carbon dioxide, methane, and nitrous oxide—that keep the Earth warmer than it would be without them.
5 days ago · natural gas, colourless highly flammable gaseous hydrocarbon consisting primarily of methane and ethane. It is a type of petroleum that commonly occurs in association with crude oil. A natural resource and fossil fuel, natural gas is used for electricity generation, heating, and cooking
People also ask
What type of gas is natural gas?
What gases are found in gas?
What are the different types of gas?
What is the basic ingredient of natural gas?
Is natural gas a hydrocarbon?
Why is natural gas called natural gas?
Oct 19, 2023 · When it is extracted, natural gas can contain a variety of elements and compounds other than methane. Water, ethane, butane, propane, pentanes, hydrogen sulphide, carbon dioxide, water vapor, and occasionally helium and nitrogen may be present in a natural gas well.
