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The majority of the sulfur in crude oil occurs bonded to carbon atoms, with a small amount occurring as elemental sulfur in solution and as hydrogen sulfide gas. Sour oil can be toxic and corrosive, especially when the oil contains higher levels of hydrogen sulfide, which is a breathing hazard.
Like sour oil, there is some natural gas naturally high in sulfur, called sour gas (natural gas with little or no sulfur is called sweet gas). The sulfur is present in the form of hydrogen sulfide, a toxic gas that must be removed for safety reasons. Most natural gas has less than 1 percent hydrogen sulfide, but deposits have been discovered ...
Sulfur dioxide is a mild but useful reducing agent. It is oxidized by halogens to give the sulfuryl halides, such as sulfuryl chloride: SO 2 + Cl 2 → SO 2 Cl 2. Sulfur dioxide is the oxidising agent in the Claus process, which is conducted on a large scale in oil refineries. Here, sulfur dioxide is reduced by hydrogen sulfide to give ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 1 February 2025. This article is about the chemical element. For other uses, see Sulfur (disambiguation). Chemical element with atomic number 16 (S) Sulfur, 16 S Sulfur Alternative name Sulphur (pre-1992 British spelling) Allotropes see Allotropes of sulfur Appearance Lemon yellow sintered microcrystals ...
The company also sold a 25% interest in oil and gas assets primarily in the western United States to Britoil for $73.5 million. [25] [26] In 1989, the company sold about $1.5 billion in assets to finance development of the Grasberg mine and the Main Pass offshore sulfur-oil-gas deposit off Louisiana. [27]
Crude oil contains sulfur in its composition, with the latter being the most abundant element after carbon and hydrogen. [2] Depending on its source, the amount of sulfur present in crude oil can range from 0.05 to 10%. [3] Accordingly, the oil can be classified as sweet or sour if the sulfur concentration is below or above 0.5%, respectively. [4]
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By 1929, the company's original sulfur mines were depleted, but the company had located oil near the edge of the salt dome where it mined sulfur. The company thereafter acquired additional properties for sulfur mining, but gradually transitioned to oil and natural gas extraction in Louisiana, Mississippi and Texas.