logo


Question

  • How does quantity of HP steam (34kgf/cm2) to strippers of hydrotreaters (10-11kgf/cm2g) for removal of H2S is finalized? What is the basis for it?

    Jan-2023

Answers


  • Marcio Wagner da Silva, Petrobras, marciows@petrobras.com.br

    The flowrate of stripping steam is defined by the desired specification of the final product, normally are conducted adjustments to ensure the specification of the hydrotreated stream with minimum consumption of stripping steam. Despite this, there is some references in the literature which stabilises the value of 3 to 5 pounds of stripping steam per barrel of bottoms liquid. It's important to quote that the thermal charge of the steam supplied to the stripping column is negligible and the main effect of the stripping steam is to reduce the partial pressure of the hydrocarbon leading to the vaporization of the lighter fractions which drag contaminants like H2S and NH3.

     

     

    Jan-2023



  • Responsive image Follow Lummus Technology on LinkedIn
  • Responsive image ITW technologies online cleaning
  • Responsive image Get an overview of your Unit Lifecycle
  • Responsive image Trap more foulants with ActiPhase®
  • Responsive image Atlas Copco Expander Compressors
  • Responsive image Process catalysts
  • Responsive image RVP in process
  • Responsive image Grid nozzles for fluid catalytic cracking units
  • Responsive image Becht fired heaters services
  • Responsive image OpX® Digital