Green Synthesis of Hydrophobic Magnetite Nanoparticles Coated with Plant Extract and Their Application as Petroleum Oil Spill Collectors

In this study, an easy, rapid and eco-friendly method was used successfully to synthesize the magnetite nanoparticles (MNPs). In order to fine-tune the synthesized MNPs for the collection of heavy crude oil spills, the particles’ surface was modified with green hydrophobic biocomponents that were extracted from Anthemis pseudocotula (AP). The surface modified reaction carried with that of the MNPs in the presence of n-hexane extract (APH) resulted in the formation of APH-MNPs, while in the presence of chloroform extract (APC), resulted in APC-MNPs formation. The as-formed MNPs were thoroughly characterized using transmittance electron microscopy, X-ray powder diffraction, vibrating sample magnetometer and thermogravimetric analysis. The efficiency of the surface-modified MNPs for the collection of oil spills in the presence of an external magnetic field was evaluated by taking different ratios of MNPs:crude oil. From the analysis of the results, we found that the APH-MNPs particles have higher efficiency in the collection of heavy crude oil than the corresponding APC-MNPs.

Download Full-text

Synthesis of Zinc Oxide Nanoparticles for Oil Upgrading and Wax Deposition Control: Effect of Calcination Temperature

Indonesian Journal of Chemistry ◽

10.22146/ijc.43317 ◽

2020 ◽

Vol 20 (4) ◽

pp. 746

Author(s):

Siti Nurliyana Che Mohamed Hussein ◽

Fatin Syahirah Mohamed Fuad ◽

Marina Ismail

Keyword(s):

Crude Oil ◽

Crystallite Size ◽

Calcination Temperature ◽

Zno Nanoparticles ◽

Viscosity Reduction ◽

Heavy Crude Oil ◽

Wax Deposition ◽

X Ray ◽

Heavy Crude ◽

Deposition Control

In this study, ZnO nanoparticles were synthesized using a sol-gel method for oil upgrading and wax deposition control. The synthesized ZnO nanoparticles were used to measure viscosity and wax deposition in the heavy crude oil and to investigate the effectiveness of the nanoparticles in the reduction of viscosity and wax deposition control of the heavy crude oil. This study investigated the effect of calcination temperature on ZnO nanoparticles during synthesis towards viscosity reduction and wax deposition control. ZnO nanoparticles were calcined at different temperatures ranging from 300 to 900 °C. The calcined ZnO nanoparticles were characterized using X-ray diffraction (XRD), Field Emission Scanning Electron microscope (FESEM), and Energy-dispersive X-ray spectroscopy (EDX) for its structure, size, shape, and morphology. The characterization results showed a hexagonal wurtzite structure of ZnO nanoparticles. The physical properties and rheology of heavy crude oil were characterized by using Electronic Rheometer and cold finger method to analyze the viscosity, shear rate, and wax deposition of the heavy crude oil for performance study. Decreased in crystallite size from 15.59 to 12.84 nm was observed with increasing calcination temperature from 300 to 400 °C, and a further increase of calcination temperature from 400 to 900 °C, the crystallite size increased from 12.84 to 41.58 nm. The degree viscosity reduction (DVR %) of heavy crude oil was observed to increase by 41.7%, with decreasing ZnO nanoparticles size from 30.11 nm to 12.84 nm. The optimum calcination temperature was 400 °C. Wax deposition decreases by 32.40% after the addition of ZnO nanoparticles into heavy crude oil.

Download Full-text

Aggregate structure analysis of Colombian heavy crude oil-derived asphaltenes using small angle X-ray scattering

CT&F - Ciencia Tecnología y Futuro ◽

10.29047/01225383.73 ◽

2017 ◽

Vol 6 (5) ◽

pp. 49-58 ◽

Cited By ~ 1

Author(s):

Lina R Morante ◽

Juan C Poveda ◽

Raúl Montiel ◽

José A Henao

Keyword(s):

Crude Oil ◽

Structure Analysis ◽

Small Angle ◽

Heavy Crude Oil ◽

Aggregate Structure ◽

X Ray ◽

X Ray Scattering ◽

Heavy Crude ◽

Ray Scattering

Download Full-text

COMPARATIVE TOXICITY OF TWO OIL TYPES AND TWO DISPERSANTS ON THE GROWTH OF A SEASHORE GRASS, PASPALUM VAGINATUM(SWARTZ)

International Oil Spill Conference Proceedings ◽

10.7901/2169-3358-2008-1-875 ◽

2008 ◽

Vol 2008 (1) ◽

pp. 875-880

Author(s):

Ruth I. Ibemesim ◽

Joseph F. Bamidele

Keyword(s):

Crude Oil ◽

Oil Pollution ◽

Heavy Crude Oil ◽

Stem Density ◽

Crude Petroleum ◽

Growth And Survival ◽

Light Crude Oil ◽

Paspalum Vaginatum ◽

Heavy Crude ◽

Petroleum Oil

ABSTRACT The present study consists of assessing the effects of Abura heavy crude petroleum oil (AC) and Oredo light crude petroleum oil (OC) on the survival of Paspalum vaginatum. The effectiveness of two dispersants, Goldcrew and Corexit 9527, in removing oil from P. vaginatum previously sprayed with either Abura of Oredo crude petroleum oil was assessed, the effect of time of dispersant application following crude oil pollution on growth and survival of P. vaginatum was also studied. Plants treated with AC recovered after 8 days while 100% mortality was recorded for plants treated with OC + Corexit 9527 (O24C0 and O48C0). Corexit 9527 was not effective in ameliorating the lethal effects of Oredo crude oil. Although, P. vaginatum recovery was apparent 70 days after AC pollution and after cleaning with Goldcrew (A24GCand A48GC), both treatments resulted in significant (P <0.05) lower biomass and stem density compared to control. It is concluded that plants cleaned with Goldcrew dispersant after 24 h recovered faster than those cleaned after 48 h. Exposure of P. vaginatum to light crude oil or light crude oil + Corexit 9527 is detrimental and can inhibit growth where as it will recover when exposed to heavy crude oil or heavy crude oil + Goldcrew.

Download Full-text