During what phase does the "Line Displacement" procedure occur at an oil terminal facility?

"Line Displacement" is an important procedure that occurs during the operations at an oil terminal facility, specifically concerning the loading of cargo. This procedure is essential for ensuring that the cargo being loaded is not contaminated by any residual product that may be left in the cargo lines.

During the final phase of loading, "Line Displacement" involves pumping a clean product through the lines to flush out any residual substances that might be left from previous operations. This ensures that the new cargo is loaded without any of the previous product mixing in, which can lead to contamination and affect the quality and integrity of the shipment.

In contrast, the phases involving cargo lines before loading, product after final discharge, or product before the start of loading focus on different aspects of operation management and do not specifically address the need for displacing residuals in preparation for the purity of the cargo being loaded. Therefore, the final phase during loading is the most appropriate time for "Line Displacement" to occur, making it the correct choice. This practice is crucial for maintaining the standards of handling and transporting oil products safely and effectively.