Co-liquefaction of Cayirhan lignite blended with petroleum vacuum residue

PETR 84

Arif Hesenov, a_tween@yahoo.com1, Ömer Gül, omergul@psu.edu2, Parvana Gafarova Aksoy, pug2@psu.edu2, Harold H. Schobert, schobert@ems.psu.edu3, and Oktay Erbatur, erbatur@cu.edu.tr1. (1) Faculty of Sciences and Letters, Department of Chemistry, Cukurova University, Balcali, Adana 01330, Adana, 01330, Turkey, (2) The Energy Institute, Pennsylvania State University, C209 Academic Projects, University Park, PA 16802, (3) The Energy Institute, The Pennsylvania State University, C211, Coal Utilization Lab, University Park, PA 16802
In this study the possibility of conversion of the blends of a high-sulfur lignite (Cayirhan lignite) and the vacuum residue from a petroleum refinery (Izmir Tupras refinery, Turkey) by hydroliquefaction has been investigated. Cayirhan lignite, petroleum vacuum resid, and blends thereof (1:1, 2:1, and 3:1) were hydrogenated at three different reaction temperatures, 400, 425, and 450°C. The distribution of the main product fractions such as oil, asphaltene, preasphaltene and gas has been determined and the synergetic effect of the presence of two different hydrocarbon matrixes blended together on the thermal hydrocracking reactions followed by either quenching of radical moieties and/or retrogressive reactions were discussed. Addition of vacuum resid into the system increased the oil formation. Increasing the reaction temperature increased the gas formation. At 450°C some retrogressive reactions were observed. Additon of catalyst precursor in all ratios increased the formation of light products, e.g., oil and gas.
 

2nd International Symposium on Hydrotreating/Hydrocracking Technologies
8:30 AM-11:30 AM, Tuesday, 12 September 2006 Palace -- Presidio Room, Oral

Division of Petroleum Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006