Efecto de la temperatura y la concentración del hcl en la velocidad de corrosión de los aceros aisi/sae 1020 y astm a106 característicos de los equipos de cima de las torres de destilación
Durante los últimos años la producción de petróleo en Colombia se ha caracterizado por el aumento de los crudos pesados o de oportunidad; actualmente, alcanzan el 55% de las reservas totales. Los crudos pesados contienen cantidades variables de compuestos como azufre, ácidos nafténicos y sales inorg...
- Autores:
-
Aguirre Duran, Cesar
Diaz Carvajal, Lorenzo Andres
- Tipo de recurso:
- http://purl.org/coar/version/c_b1a7d7d4d402bcce
- Fecha de publicación:
- 2016
- Institución:
- Universidad Industrial de Santander
- Repositorio:
- Repositorio UIS
- Idioma:
- spa
- OAI Identifier:
- oai:noesis.uis.edu.co:20.500.14071/34351
- Palabra clave:
- Corrosión
Hidrólisis
Crudo Pesado
Ácido Clorhídrico
Sistema De Cima.
During the last years
Colombian oil production has been characterized by the increase of heavy crudes or opportunity crudes; nowadays
these reach 55% of total reserves. Heavy oils contain variable amounts of compounds such as sulfur
naphthenic acids and inorganic salts affecting the refining equipment. The inorganic salts that are not totally removed in the desalter pass to the furnace where they are hydrolyzed and form an aqueous solution of hydrochloric acid (HCl) which
arriving to the heat exchangers of the top of the distillation towers
it is condensed and adhered to the equipment walls
generating corrosion and damage to the structural integrity of them. Therefore
it is evaluated the temperature and concentration effect of HCl on the steels AISI/SAE 1020 and ASTM A106
at overhead system conditions of the distillation towers
doing the calculation of the corrosion rate by gravimetric technique using standard ASTM G1
analysis of morphology and corrosion products with Scanning Electron Microscopy (SEM)
Energy Dispersive Spectrometry X-ray (EDS) and X-Ray Diffraction (XRD) and statistical analysis of the variables studied. The obtained results show severe corrosion levels in all tests. For this reason
it is proposed a mathematical model for each steel that permits predict the trend of the corrosion rate for the studied conditions; furthermore
it is presented stable and unstable oxides
being magnetite the stable oxide adhered to the surface of the steel and hematite the unstable oxide adhered to the reactor surface
- Rights
- License
- Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)