hey how do i find the boiling point of a crude stream in hysys

Once when you have crude assay/blend installed in the main flowsheet, you can use Boilin Point Curves utility to calculate/plot various boiling point curves for you. Different standard methods are available.

You can find the same results within the Oil Manager environment once when you finalize the oil characterization procedure.

Thank you very much

Once your fluid is well defined in HYSYS, you may easily get the bubble point at Pressure by setting the Vapor Fraction to 0.