INVESTIGADORES
VERA carlos Roman
artículos
Título:
Non-catalytic thermal decomposition of naphthenic acids of petroleum crude
Autor/es:
MARIANA BUSTO; CARLOS VERA
Revista:
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING
Editorial:
BRAZILIAN SOC CHEMICAL ENG
Referencias:
Lugar: BRASIL; Año: 2021 p. 1 - 8
ISSN:
0104-6632
Resumen:
Laboratory experiments on the thermal decomposition of naphthenic acids of petroleum crudes at 360 °C to 400 °C were carried out in thermal equipment allowing for reducing the acidity of a petroleum crude of TAN=5. Results show that the concentrations of naphthenic acids follow a pseudo second order equation based on decreasing concentrations of naphthenic acids with time at different temperature. Four carrier gases were tested, nitrogen, hydrogen, carbon dioxide and steam. Best results were obtained when using nitrogen as stripping gas, at 400 °C and 1.5 L h-1 stripping rate. A 90% decrease of acidity were achieved with a treatment of 4 h. This final TAN value is acceptable for a subsequent refining of the crude in a common refinery.
