This terminology depends on the sulfur content of the crude oil. Sweet crude oil contains less than 5% of sulfur, while sour contains over 5%/. In the nineteenth century, the oil would be tasted to determine its composition, and the lower sulfur content is reported to give it a slightly sweet taste and pleasant smell.
Sweet crude oil can become sour due to the presence of sulfur compounds which can develop over time or be introduced during production. These sulfur compounds can react with the oil to create hydrogen sulfide, giving the crude oil a sour smell and making it more corrosive. Sour crude oil typically has higher sulfur content than sweet crude oil.
Crude oil can be classified as sour or sweet based on its sulfur content; sour crude contains higher levels of sulfur, while sweet crude has less. Wet service typically refers to environments where water is present, which can occur with both types of crude, especially during extraction and transportation. Therefore, crude oil can be either sour or sweet, and it can be involved in wet service conditions depending on the specifics of the operation.
Sour crude is high in sulfur. Sweet crude is low in sulfur. Petroleum is considered "sweet" if it contains less than 0.5% sulphur. Sour crude oil has >0.5% sulphur. Sweet crude oil also contains small amounts of hydrogen sulfide (H2S) and carbon dioxide (CO2).
Crude petroleum is mainly classified into three categories based on its density and sulfur content: light, medium, and heavy crude. Light crude has a low density and high API gravity, making it easier to refine, while heavy crude has a high density and lower API gravity, requiring more complex processing. Additionally, crude oil can be categorized as sweet or sour, depending on its sulfur content; sweet crude has low sulfur levels, while sour crude contains higher sulfur levels, affecting its market value and refining processes.
first they're sour, then they're sweet. sour patch kids ((:
There are 3 different types of Crude Oil, 1) Light sweet (WTI= West Texas Intermediate): High-quality, Sweet oil, traded at the NYMEX (Newyork Exchange) 2) North Sea Brent (Sourced from the North Sea): Light oil 3) Oman Dubai: Sour oil (Crude oil is light if if the density is low & heavy if the density is high. Sweet if sulfur content is low and Sour if sulfur is high). Now check the day today price at market....
Crude oil is a very complex mixture of hydrocarbon compounds with some inorganic compounds. Simple quality terms (light/ heavy and sour/ sweet) are defined for convenience and are inadequate terms to fully characterize the crude. However, as discussed in the links, a crude that has less than 0.5% sulfur content is sweet crude. Oil that is between 37 to 42 degrees API in density is light oil. Other definitions exist (see link), however this appears the range used for US produced crude. Light sweet crude will sell for higher prices than other grades, (Heavy sour, heavy sweet, light sour). Many countries produce light sweet crude including Russia, Saudi Arabia, Iraq, Brazil, Angola, Nigeria, and the US. Please see related links.
The ISBN of Sour Sweet is 0233973656.
Sour Sweet was created in 1982.
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a hateful/mean/unpleasant person
it means you should be sweet to her and not sour.