resid

Thân thiện

A worker checks the resid in a large industrial storage tank.

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.

Học thuật

Noun

1. oil products that remain after petroleum has been distilled

Từ đồng nghĩa

• residual oil