An Experimental Study of a Pilot Plant Deasphalting Process in Subcritical and Supercritical Conditions

Author(s)

Lodi, L. ^[1] ; Cardenas Concha, V. O. ^[2] ; Souza, R. A. ^[3] ; Medina, L. C. ^[4] ; Filho, R. M. ^[5] ; Wolf Maciel, M. R. ^[6]

Affiliation

^[1] Av Albert Einstein 500. BR-13083852 Campinas

^[2] Univ Campinas UNICAMP. Sch Chem Engn

^[3] Univ Campinas UNICAMP. Sch Chem Engn

^[4] Petrobras SA. Ctr Res & Dev CENPES PDEDS

^[5] Univ Campinas UNICAMP. Sch Chem Engn

^[6] Univ Campinas UNICAMP. Sch Chem Engn

• Document type: Journal article
• Source: PETROLEUM SCIENCE AND TECHNOLOGY; v. 32, n. 22, p. 2659-2665, NOV 17 2014.
• Web of Science Citations: 5

Abstract

The authors aimed to study the deasphalting process on laboratory scale through the design and development of a supercritical extraction experimental unit. Extractions in subcritical and supercritical conditions were carried out using petroleum residue as feedstock and propane as solvent. Temperature and pressure were manipulated in order to maintain the solvent in the required conditions, thus facilitating the extraction process and avoiding sharp changes in the system. In supercritical conditions, the products in the deasphalted oil stream present adequate characteristics for the production of lubricant oils and those in the asphalt residue stream present an elevated concentration of asphalt molecules. (AU)

• FAPESP's process: 11/00875-1 - STUDY PROCESS DEASPHALTING DURING NORMAL AND SUPERCRITICAL EXTRACTION USING DIFFERENT SOLVENTS.
• Grantee: Leandro Lodi
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 10/12955-7 - ATTAINMENT OF ASPHALTENES AND LUBRICANT OIL FROM PETROLEUM RESIDUE BY SUPERCRITICAL DEASPHALTING USING DIFFERENTS FLUIDS - COMPUTATIONAL AND EXPERIMENTAL ANALYSIS
• Grantee: Viktor Oswaldo Cardenas Concha
• Support Opportunities: Scholarships in Brazil - Post-Doctoral