oil refining

uncountable

The industrial process of converting crude oil into petroleum and other useful products

Japanese Meaning

原油を石油および他の有用な製品に変換する工業的な工程、すなわち油の精製

Advances in catalysis have significantly improved efficiency and reduced emissions in oil refining plants worldwide.

触媒の進歩により、世界中の石油精製プラントで効率が大幅に向上し、排出量が削減されました。

Sense（1）

The industrial process of converting crude oil into petroleum and other useful products