Efficient pretreatment of dirty feedstocks using filter aid adsorbents

Monday, April 28, 2025

1:55 PM – 2:15 PM PST

Room: A107-109

Presenting Author(s)

Jacob Misuraca

Research Scientist
Imerys
Suwanee, GA, United States

Co-Author(s)

AR

Amelia Reid

Research Scientist
Imerys
Suwanee, Georgia, United States
David Gittins (he/him/his)

Technical Business Development Director
Imerys
Suwanee, Georgia, United States
JO

Jim O'Neil

Sales Manager
Imerys
Suwanee, Georgia, United States

Abstract:

Renewable diesel feedstocks, including used cooking oil (UCO), animal fats, crude vegetable oils, and their blends, contain metal ion and phospholipid contaminants that can reduce the lifespan of precious metal catalysts used in renewable diesel production. These impurities are typically removed through a pre-treatment process incorporating water-wash, chemical degumming, and dry-washing techniques.

This presentation delves into the various types of filter aids used in the dry-wash process, such as diatomaceous earth, bleaching earth, and silica gel. It also explores process improvements and waste cake pyrophoricity differences between various filter aids and adsorbents.

By examining these aspects, we aim to provide insights into enhancing the efficiency and effectiveness of renewable diesel pre-treatment. processes.