Separation and characterization of bitumen from Athabasca oil sand

Yoon, Seung Soo; Bhatt, Shreya; Lee, Wonkyu; Lee, Heung Yeoun; Jeong, Soon Yong; Baeg, Jin‐Ook; Lee, Chul Wee

doi:10.1007/s11814-009-0011-3

Cited by 95 publications

(55 citation statements)

References 25 publications

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“…Strausz et al (2010) described bitumen as the heaviest form of petroleum which is viscous, black and sticky. It is a complex mixture of high boiling point range of hydrocarbon compounds and molecules with relatively low hydrogen to carbon ratio (Yoon et al, 2009). The exploitation and exploration of the Nigerian natural bitumen deposits can best be described to be at the planning stage.…”

Section: Microbial J 1 (4): 139-148 2011mentioning

confidence: 99%

Preliminary Study on Biodegradation of Nigerian Natural Bitumen

Olabemiwo¹,

Adediran²,

Adekola³

et al. 2011

Microbiology J.

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One of the major problems facing the existence of man in this millennium is pollution. Thus, it is no surprise that much attention is given to pollution control and remediation of polluted environment. While remediation can be achieved by physicochemical and biological methods, application of the latter tends to be gaining upper hand due to some of its inherent advantages. This study investigated the biodegradability of bitumen from Agbabu, Southwestern Nigeria by hydrocarbon utilizing strains of Pseudomonas putrefaciens, Pseudomonas nigrificans, Bacillus licheniformis, Pseudomonas tragi and Achromobacter aerogenes. The organisms were used to inoculate Mineral Salts Medium (MSM) supplemented with 0.2 g L-1 solution of Agbabu bitumen in dichloromethane. Cultures were inoculated at different temperature and pH (27°C/pH 3.5; 27°C/pH 5.6; 30°C/pH 7.0 and 40°C/pH 7.0) for two weeks. The quantity of bitumen degraded by each organism was determined gravimetrically at the end of first and second week. The rate of degradation was calculated for each organism and residual bitumen analyzed by infraredSpectroscopy. In the first week of incubation, Achromobacter aerogenes exhibited the highest rate of degradation (1.750±0.027 mg h-1 ) at 30°C and pH 7 while Bacillus licheniformis showed the least degradation rate (0.300±0.018 mg h-1 ) at 40°C and pH 7. Structural indices such as aromaticity, sulphonation, aliphaticity and oxidation calculated from the infrared spectra of recovered bitumen from the inoculated samples were different from that of the control. This thus, confirms the degradation capability of the bacteria used in this work on the Agbabu bitumen and hence their potentials for use in bioremediation of bitumen-polluted environments.

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Section: Microbial J 1 (4): 139-148 2011mentioning

confidence: 99%

Preliminary Study on Biodegradation of Nigerian Natural Bitumen

Olabemiwo¹,

Adediran²,

Adekola³

et al. 2011

Microbiology J.

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“…In this figure, absorbance peaks appeared at 2924, 2855, 1458 and 1376 cm -1 , which corresponded to the aliphatic hydrogen for C-H stretching in -CH 3 and -CH 2 in TMA. 13 These bands are commonly observed in TMA and p-TMA as shown in Figure 1. Also, the peaks near 1029 and 1300 cm -1 were attributed to -C-O and -C-N vibration in TMA and p-TMA, respectively.…”

Section: Methodsmentioning

confidence: 88%

“…The band around 3500 cm -1 corresponded to N-H stretching in two molecules. 13 In IR spectra of p-TMA, particularly, the peak at 1601 cm -1 associated with C=C stretching mostly disappeared in p-TMA, indicating that TMA was polymerized. From above NMR and IR measurements, it was confirmed that polymerization using AIBN initiator was well conducted.…”

Section: Methodsmentioning

confidence: 93%

Investigation of Oxidation Methods of Organic Radical Polymer for Cathode Material in Lithium Ion Batteries

Lee¹,

Kim²,

Moon³

et al. 2014

Polymer Korea

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An organic radical polymer (ORP) was prepared by radical polymerization and following oxidation into nitroxyl radical. Two different oxidation methods were employed and their radical concentrations were measured using electroparamagnetic resonance spectroscopy (EPR) and UV-visible absorption (UV-vis) spectroscopy. From these measurements, H 2 O 2 -Na 2 WO 4 oxidation method exhibited a complete oxidation, which resulted in 97.6% spin concentration. Also, it was revealed that convenient and cheap UV-vis measurement was useful for preliminary radical concentration comparison. After applied as a cathode material in lithium ion batteries, ORP electrode showed a high initial capacity (110 mAh g -1 ), a good initial efficiency (96%), a very high rate performance (70% charging during 1.2 min) and stable cycle performance.

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“…The Iatroscan MK 5 Thin Layer Chromatography (TLC) was used for the chemical characterisation of bitumen by separating it into four fractions: Saturates, Aromatics, Resins and Asphaltenes (SARA) [19]. During the measurement, the separation took place on the surface of silica-coated rods.…”

Section: Sara Determinationmentioning

confidence: 99%

Mechanical Resilience of Modified Bitumen at Different Cooling Rates: A Rheological and Atomic Force Microscopy Investigation

et al. 2017

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Due to the wide variation in geographic and climatic conditions, the search for high-performance bituminous materials is becoming more and more urgent to increase the useful life of pavements and reduce the enormous cost of road maintenance. Extensive research has been done by testing various bitumen modifiers, although most of them are petroleum-derived additives, such as polymers, rubbers and plastic, which in turn do not prevent oxidative aging of the binder. Thus, as an alternative to the most common polymeric rheological modifiers, selected binder additives falling in the categories of organosilane (P2KA), polyphosphoric acid (PPA) and food grade phospholipids (LCS) were homogeneously mixed to a base bitumen. The goal was to analyse the micro-morphology of the bitumens (neat and modified) subjected to different cooling rates and to find the corresponding correlations in the mechanical response domain. Therefore, microstructural investigations carried out by Atomic Force Microscopy (AFM) and fundamental rheological tests based on oscillatory dynamic rheology, were used to evaluate the effect of additives on the bitumen structure and compared with pristine binder as a reference. The tested bitumen additives have been shown to elicit different mechanical behaviours by varying the cooling rate. By comparing rheological data, analysed in the framework of the "weak gel" model, and AFM images, it was found that both P2KA and PPA altered the material structure in a different manner whereas LCS revealed superior performances, acting as "mechanical buffer" in the whole explored range of cooling rates.

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Separation and characterization of bitumen from Athabasca oil sand

Cited by 95 publications

References 25 publications

Preliminary Study on Biodegradation of Nigerian Natural Bitumen

Preliminary Study on Biodegradation of Nigerian Natural Bitumen

Investigation of Oxidation Methods of Organic Radical Polymer for Cathode Material in Lithium Ion Batteries

Mechanical Resilience of Modified Bitumen at Different Cooling Rates: A Rheological and Atomic Force Microscopy Investigation

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