Question

Along the 800-mile Alyeska (Alaska) pipeline transporting oil from Prudhoe Bay (north) to the Valdez Marine Terminal (south), zinc ribbon is buried to inhibit the corrosion of the below-ground sections of the (iron/steel) pipeline. Explain how zinc serves in this function.

Answer 1

Zinc ribbon act as cathodic protection where An ICCP system for a pipeline consists of a DC power source, often an AC powered transformer rectifier and an anode, or array of anodes buried in the ground (the anode groundbed).

various pipe materials are also provided with cathodic protection where owners determine the cost is reasonable for the expected pipeline service life extension attributed to the application of cathodic protection. Here zinc is the example

answered by: anonymous