resid
Definition
Noun 1. The solid or semi-solid material remaining after the distillation or refining of petroleum; a petroleum byproduct. This refers specifically to the heavy, carbon-rich substances left behind after more valuable, volatile components like gasoline and kerosene have been removed from crude oil through the distillation process.
Usage
- Resid is a technical term used primarily in the petroleum and chemical industries.
- It is often used as a shortened form of "residual oil" or "residuum."
- It functions as a mass noun (uncountable) when referring to the substance in general.
Examples
- The refinery sells the resid to other industries for use in asphalt production.
- After the distillation process, a significant amount of resid remains in the bottom of the tower.
- The price of heavy resid has fallen due to decreased demand for industrial fuel oil.
Advanced Usage
- "Resid upgrading": Refers to industrial processes (like cracking or coking) that convert heavy residual oil into lighter, more valuable products such as gasoline.
- The new catalytic cracking unit is designed for efficient resid upgrading.
- "Resid fuel oil": A common term for the heavy fuel oil derived from resid, often used in large ships and power plants.
- The power station switched from coal to resid fuel oil.
Variants and Related Words
- Residual (adjective): Pertaining to or being a residue. (e.g., )
- Residuum (noun): A more formal synonym for resid, meaning "that which remains."
- Residue (noun): A more general term for what remains after a process. In the oil context, it is synonymous with resid.
- Bottom-of-the-barrel (idiomatic adjective, informal): Used figuratively to describe something of the lowest quality, derived from the concept of resid being the heavy material at the bottom of a distillation column.
Synonyms
- Residual oil
- Residuum
- Residue (in this specific context)
- Heavy fuel oil (when used as fuel)
- Asphalt residue (when used for paving)
Related Phrases/Compounds
- Vacuum resid or Vacuum residue: Resid obtained after further distilling atmospheric resid under reduced pressure (vacuum).
- Atmospheric resid: Resid obtained from the initial atmospheric pressure distillation of crude oil.
Noun
-
oil products that remain after petroleum has been distilled
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