Doc. 68/18Prevention of Carbon Dioxide Backfeed Contamination

All deliveries of liquefied carbon dioxide potentially represent a risk for backfeed and contamination of the supplying tanker. The widespread use of a gas phase return connection when delivering carbon dioxide increases the probability of spreading that contamination to other customers.

This publication gives guidance on how to minimise the probability of contamination arising in customer’s carbon dioxide storage tanks. This publication is concerned with preventing contamination that enters the carbon dioxide storage tank at the user’s premises and subsequently contaminates the delivery tanker and depot storage tank.

The publication is intended for all those involved in the delivery of carbon dioxide to customer storage tanks.