Thermocouple for Fluid Catalytic Cracking Unit

Fluid catalytic cracking (FCC) is one of the most important conversion processes used in petroleum
refineries. It is widely used to convert the highboiling, high-molecular weight hydro carbon fractions of petroleum crude oils into more valuable gasoline, olefin gases and other products. Cracking
of petroleum hydrocarbons was originally done by thermal cracking.
The purpose of Shear Valve is to close the valve manually & to cut the thermocouple probe, if the
protection tube fails or get punctured inside the process which in turns will avoid any leakages.
A boron coating minimize the formation of hydrocarbons on the surface of the parent material
at a temperature of around 900°C in order to achieve all the desirable properties. An extremely
hard coating can be done with a thickness (0.007 to 0.4 mm) and a surface hardness (1200 to 2800 HV)
depending on the material type, temperature and process reaction time.