The petrochemical plants have a few thousands of feet of electric heat tracing. These are used primarily for process heating. The process heating protection is required to protect lines and vessels from extreme freezing during the colder months of travel. It is the process heating that keeps the pipes as well as the vessels warm enough to enable all the systems to function properly.
Please read the originial post here: https://www.maximizemarketresearch.com/market-report/asia-pacific-electric-heat-tracing-market/6938/