thumb|upright=1.35|Shell Haven Oil Refinery A refinery is a production facility composed of a group of chemical engineering unit processes and unit operations refining certain materials or converting raw material into products of value.
thumb|upright=1.35|Shell Haven Oil Refinery A refinery is a production facility composed of a group of chemical engineering unit processes and unit operations refining certain materials or converting raw material into products of value.
==Types of refineries==
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).