Refinery (noun)

1. A factory where crude oil is processed and refined into petroleum products.
2. A place where something is purified or processed to improve its quality.

Origin:

Mid 19th century: from refine + -ery.

Examples:

1. The explosion at the oil refinery caused a massive fire.
2. The refinery processes thousands of barrels of crude oil every day.
3. The sugar refinery produces high quality sugar from raw sugar cane.
4. The gold refinery was a major contributor to the local economy.
5. The information was refined in the research process to produce a more accurate report.