Evaluation of heavy crude oil from a water-oil model system as starting material for the preparation of adsorbents type NaY zeolite-templated carbon.
In this work, NaY zeolite is explored as a possible "template" to obtain porous materials type ZTC from the adsorption of heavy crude oil in a water-oil model system (emulsion). In order to produce the adsorbents, a cationic surfactant is selected to facilitate the adsorption of the crude oil into the pores of the zeolite and to get the composite, which was activated with controlled thermal treatments (T: 700-800 °C and t: 0.5-1 h) in inert conditions (N2gaseous). The starting materials, composite and porous carbons were characterized using structural/surface analysis techniques (API Gravity, SARA, IR, XRD, XRF, TGA, Langmuir isotherms, BET and SEM). The results showed that four types of mesoporous carbons were produced with specific surface areas between 70 ± 1 m2/g and 220 ± 3 m2/g, average pore volumes between 0.144 cm3/g and 0.40 cm3/g and average pore widths between 4.9 nm and 8.3 nm. The activation conditions of 800 °C and 1 h allowed to make the carbonaceous material with the best surface characteristics (220 ± 3 m2/g, 0.27 cm3/g, and 4.9 nm). Therefore, it is concluded that under assay conditions employed, the heavy crude oil, as a mixed model (water-oil), from an aqueous environment is a starting material suitable for preparation of "mesoporous" carbons.
Department of Civil and Environmental Engineering, Universidad del Norte, km 5 via Pto. Colombia, P.O. Box 1569-51820, Barranquilla, Atlántico, Colombia. Electronic address: cindyelles@gmail.com.
Cindy J
CJ
Elles-Pérez
Department of Chemistry and Biology, Universidad del Norte, km 5 via Pto. Colombia, P.O. Box 1569-51820, Barranquilla, Atlántico, Colombia. Electronic address: amnerm@uninorte.edu.co.
Amner
A
Muñoz-Acevedo
Department of Civil and Environmental Engineering, Universidad del Norte, km 5 via Pto. Colombia, P.O. Box 1569-51820, Barranquilla, Atlántico, Colombia. Electronic address: faguzman@uninorte.edu.co.
Andrés
A
Guzmán
Faculty of Environmental Chemistry, Universidad Santo Tomás sede Bucaramanga, Cr 18 #9-27, Bucaramanga, Santander, Colombia. Electronic address: director@ginmea.org.
Hernando
H
Camargo
School of Chemistry, Universidad Industrial de Santander, Cr 27 Cl 9, Bucaramanga, Santander, Colombia. Electronic address: jahenao@uis.edu.co.
José
J
Henao
D000327:Adsorption; D002244:Carbon; D010578:Petroleum; D014867:Water; D017641:Zeolites
D010578:Petroleum; D014867:Water; D017641:Zeolites; D002244:Carbon
Heavy oil; Mesoporous carbons; NaY zeolite; Oil-water model; ZTC materials