residual oil
Học thuậtThân thiện
Definition
Noun: * A heavy, viscous oil that remains as a residue after the more volatile components (like gasoline, kerosene, and diesel) have been distilled from crude petroleum. It is also known as fuel oil or resid.
Usage
- "Residual oil" is a technical term used primarily in the petroleum and energy industries.
- It refers to the leftover, less refined fraction from the crude oil refining process.
- This substance is typically used as fuel for large industrial boilers, power plants, and ships.
Examples
- The power station switched from coal to burning residual oil.
- After distillation, the residual oil is further processed into asphalt or other heavy products.
- The price of residual oil often fluctuates with industrial demand.
Advanced Usage
- In economic and energy reports, "residual oil" is often discussed in the context of fuel switching and emissions, as it is a heavier, more polluting fuel compared to natural gas or distillates.
Variants and Related Words
- Fuel Oil: A common synonym, especially for the grades used in heating and large engines.
- Resid (or Residuum): An abbreviated, industry-specific term for residual oil.
- Heavy Fuel Oil (HFO): Another synonym emphasizing its high viscosity and density.
- Asphalt and Bitumen: Some residual oils are further processed into these paving and waterproofing materials.
Synonyms
- Fuel oil
- Heavy fuel oil (HFO)
- Resid
- Residuum
Antonyms
- Distillate: Refers to the lighter, more refined products (e.g., gasoline, diesel) separated during distillation, as opposed to the residual bottom product.
Noun
- oil products that remain after petroleum has been distilled