Estudio de la acuatermólisis catalítica en procesos de upgrading de crudos pesados como método complementario en el recobro térmico de hidrocarburos

• Published in: Revista fuentes, el reventón energético (En linea) Vol. 16; no. 1; pp. 51 - 62
• Main Authors: Angel Mauricio Castillo Cubillos, Jorge Anderson Arboleda Lamus, Samuel Fernando Muñoz Navarro
• Format: Journal Article
• Language: English
• Published: Universidad Industrial de Santander 01.07.2018
• Subjects: Aquathermolysis; Aromatics; Asphaltenes; Catalytic; Saturated; Steam; Viscosity
• ISSN: 1657-6527; 2145-8502
• DOI: 10.18273/revfue.v16n1-2018005

Density and viscosity are the properties which differentiates light oil of the heavy and extra-heavy oil; heavy-extra-heavy oil contains more indefinite chemical elements such as resins and asphaltenes whose have more pures components (saturated and aromatics). In the steam injection, the viscosity is reduced at 97%, in addition, the implementation of steam also changes the composition of the mixure due to chemical reactions between the water steam, organics petroleum compounds, minerals and catalysts, reaching a switch in the molecular structure of petroleum; this process is defined as catalytic aquatermolysis. The reactions of catalytic aquatermolysis are: pyrolysis, hydrolysis, Water Gas Shift, hydrodesulphurization (HDS), hydrodesnitrogenación (HDN) and hidrodeoxygenation (HDO). The use of metal catalysts and hydrogen donors have a synergistic effect, in addition, the compounds that react with water steam are resins and asphaltenes. On a macro scale, it is reduced by 90%. At the field scale, pilots were implemented in the Liaohe basin, China, where it was used as a complement to the cyclic steam injection technology, showing reductions in viscosity of 80% and relevant changes in the composition of the oil.