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Sweet crude oil contains small amounts of hydrogen sulfide and carbon dioxide. High-quality, low-sulfur crude oil is commonly used for processing into gasoline and is in high demand, particularly in industrialized nations. Light sweet crude oil is the most sought-after version of crude oil as it contains a disproportionately large fraction that ...
Since sour crude is more common than sweet crude in the U.S. part of the Gulf of Mexico, Platts has come out in March 2009 with a new sour crude benchmark called "Americas Crude Marker (ACM)". [3] Dubai Crude and Oman Crude, both sour crude oils, have been used as a benchmark (crude oil) oil marker for Middle East crude oils for some time.
Crude oil is considered "heavy" if it has long hydrocarbon chains, or "light" if it has short hydrocarbon chains: an API gravity of 34 or higher is "light", between 31 and 33 is "medium", and 30 or below is "heavy". Crude is considered "sweet" if it is low in sulphur content (< 0.5%/weight), or "sour" if high (> 1.0%/weight). Generally, the ...
Western Canadian Select (WCS) is a heavy sour blend of crude oil [1] that is one of North America's largest heavy crude oil streams [2] and, historically, its cheapest. [3] It was established in December 2004 as a new heavy oil stream by EnCana (now Cenovus), Canadian Natural Resources, Petro-Canada (now Suncor) and Talisman Energy (now Repsol Oil & Gas Canada). [4]
Crude oil is most commonly organised into four types - light, heavy, sweet, and sour. [6] Petroleum is a non-renewable energy source (also known as a " fossil fuel "), so the efficacy of extraction and refining is important for its continued use; multiple techniques are used to detect and to extract crude oil, based on the source rock it is ...
The sweet & sour yogurt dipping sauce is E-V-E-R-Y-T-H-I-N-G. Get the recipe from Delish. Cheesy Sweet Potato Casserole. Photo credit: Judy Kim.
For refineries, the interest has been primarily focused on the distribution between the distillation fractions: petrol, paraffin, gas oil, lubricant distillate, etc. Refiners look at the density of the crude oil – whether it is light, medium or heavy – or the sulfur content, i.e. whether the crude oil is “sweet” or “sour”.
Yields: 4 servings. Prep Time: 15 mins. Total Time: 1 hour 15 mins. Ingredients. 14 oz. extra-firm tofu. 1. small red onion. 1. red bell pepper. 1. green bell pepper