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Problems in resid—feedstock heat exchange in visbreaking units

  • R. R. Vezirov
  • R. G. Gareev
  • S. A. Obukhova
  • N. R. Vezirova
  • D. E. Khalikov
Article
  • 40 Downloads

Introduction

Visbreaking is one of the most common processes used in OR and NHC for refining petroleum resids – atmospheric resid, vacuum resid, and asphalt. The fundamental problem is to ensure the required degree of thermal conversion of the feedstock. Developers have concentrated all of their forces on solving this problem. At the same time, insufficient attention is being focused on the feedstock resid heat exchange block in the visbreaking unit, which has led to serious problems in operating the units:
  • • decrease in heat-exchange efficiency and increase in operating costs for heating the feedstock in the furnace;

  • • an increase in power consumption for aftercooling the outgoing visbreaking resid;

  • • reduction of the operating time between repairs due to clogging of the heat-exchange equipment.

All of this is due to the properties of the visbreaking resid and requires carefully working out the configuration of the equipment and design of the heat-exchange block with consideration of...

Keywords

Heat Exchanger Vacuum Gasoil Vacuum Resid Visbreaking Atmospheric Resid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer Science+Business Media, Inc. 2010

Authors and Affiliations

  • R. R. Vezirov
    • 1
  • R. G. Gareev
    • 1
  • S. A. Obukhova
    • 1
  • N. R. Vezirova
    • 1
  • D. E. Khalikov
    • 1
  1. 1.BR Institute of Petrochemical Refining GUPUfaRussia

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