Steam tracing for gaseous ammonia pipelines
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The operating temperature of the ammonia in the product gas coming out of the urea hydrolyzer is 180°C, with an operating pressure of 1.2 Mpa. How can steam tracing be used in combination with insulation to transport this gas over a distance of 200 meters to the SCR area? How should steam tracing be designed to ensure that the temperature of the ammonia remains above 180°C upon arrival at the target area? What values should be assigned to the temperature and pressure of the tracing steam, as well as the diameter and number of tracing pipes?
It is recommended to use a full jacketed tube; a saturated steam temperature of around 200°C is sufficient
Agree with the suggestion above. Additionally, it is recommended to install a safety valve on the jacket system. To prevent major steam accidents caused by urea pipeline leaks.