An Experimental Study of a Pilot Plant Deasphalting Process in CO2 Supercritical

Autor(es)

Lodi, Leandro ^{[1, 2]} ; Cardenas Concha, Viktor Oswaldo ^{[3, 1]} ; Medina, Lilian Carmen ^[4] ; Maciel Filho, Rubens ^[5] ; Wolf Maciel, Maria Regina ^[1]

Afiliação do(s) autor(es)

^[1] Univ Campinas UNICAMP, Sch Chem Engn, Lab Separat Proc Dev LDPS, Campinas, SP - Brazil

^[2] Fed Univ Alfenas ICT UNIFAL, Sci & Technol Inst, Pocos De Caldas, MG - Brazil

^[3] Fed Univ Sao Paulo UNIFESP, Sao Paulo - Brazil

^[4] Petrobras SA, Ctr Res & Dev CENPES PDEDS, Rio De Janeiro - Brazil

^[5] Univ Estadual Campinas, Sch Chem Engn, Lab Optimizat Design & Adv Control LOPCA, Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: PETROLEUM SCIENCE AND TECHNOLOGY; v. 33, n. 4, p. 481-486, 2015.
• Citações Web of Science: 5

Resumo

The authors aimed to study the deasphalting process on laboratory scale through the design and development of a supercritical extraction experimental unit. The experimental unity used in tests is composed by a pump, an extractor with useful volume of 3 L and one separator vessel. Extractions in supercritical conditions were carried out using petroleum residue (vacuum and atmospheric residuum) as feedstock and dioxide carbon (CO2) 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)

• Processo FAPESP: 11/00875-1 - Estudo de processo de desasfaltação em condições normais e supercríticas utilizando diferentes solventes de extração.
• Beneficiário: Leandro Lodi
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 10/12955-7 - Obtenção de asfaltenos e óleo lubrificante a partir do resíduo de petróleo empregando diferentes solventes na desasfaltação supercrítica - análise computacional e experimental
• Beneficiário: Viktor Oswaldo Cardenas Concha
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado