Why Filtration Matters in Oil Refining The refining process involves multiple stages where solid contaminants, catalyst particles, and process by-products must be separated from valuable hydrocarbons. Inefficient filtration can cause: • Catalyst fouling and reduced activity. • Pressure drop increases across reactor beds. • Unplanned downtime and costly maintenance. • https://www.wedgewire-filter.com/news-filtration-and-screening-for-oil-refining-wedge-wire-internals.html