Direct Mass Spectrometry of tar sands: A new approach to bitumen identification

Flego, C.; Carati, Claudio; Gaudio, L. Del; Zannoni, Carla

doi:10.1016/j.fuel.2013.04.010

Cited by 13 publications

(12 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure illustrates possible tar compounds detected. Starting from the most abundant, it is possible to recognize pyrene, chrysene and dibenzo‐chrysene, which was indicated by Flego and co‐workers as a possible pyrolysis compound in the proximity of our peak at 301 m/z.…”

Section: Resultsmentioning

confidence: 91%

A study on supercritical water gasification of black liquor conducted in stainless steel and nickel-chromium-molybdenum reactors

Blasio

Lucca

Özdenkçi

et al. 2016

J. Chem. Technol. Biotechnol.

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 91%

A study on supercritical water gasification of black liquor conducted in stainless steel and nickel-chromium-molybdenum reactors

Blasio

Lucca

Özdenkçi

et al. 2016

J. Chem. Technol. Biotechnol.

View full text Add to dashboard Cite

“…4 classes were found to be present in the acidic fractions. Relative abundance of each class was calculated by normalizing the peak abundance to the total abundance (all the assigned peaks).…”

Section: Compound Class Distributionmentioning

confidence: 94%

“…Among these unconventional oils, bitumens from tar sand reservoirs have great potential to assist in meeting the world's rising energy demand. 4,5 The occurrence of tar sand bitumens is common in many basins worldwide, but they are mainly found in shallow reservoirs on the flanks of foreland basins in North and South America. The largest accumulations are the supergiant deposits of tar sands in the Alberta (Canada) and Eastern Venezuelan (Venezuela) basins.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Acidic Compounds in Brazilian Tar Sand Bitumens by LTQ Orbitrap XL: Assessing Biodegradation Using Petroleomics

Martins¹,

Angolini²,

Cruz³

et al. 2016

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

A set of eight tar sand samples with identical source, from sedimentary facies of the Pirambóia Formation, Paraná Basin, provides an interesting opportunity to assess the biodegradation extent of bitumens using high-resolution mass spectrometry with Orbitrap mass analyzer. The results suggest that acidic compounds have been degraded by microorganisms, since the O 2 and O 3 classes were lower to bitumens from dry interdune facies, the most biodegraded. It was also proposed a new parameter to evaluate biodegradation, DBE ratio (ratio between acidic species with the same number of double bond equivalent), that was used together with the already proposed A/C ratio (acyclic to cyclic naphthenic acids), both obtained from O 2 class distribution. The bitumens from dry interdune facies presented the highest DBE ratios and lowest A/C ratios, which suggested that these parameters can be used to assess the extent of bitumen biodegradation in which the DBE ratios increase and the A/C ratios decrease with increasing biodegradation. Keywords: heavy oil, biodegradation, heteroatom class, sedimentary facies, Paraná Basin IntroductionIt is expected that the production of heavy, biodegraded oil will increase worldwide as lighter conventional oil reserves are depleted.1 This shortage of light oil makes these less attended energy resources more attractive, especially considering that heavy oils are currently 10 times more abundant than conventional oils.2 Even with the fluctuation of crude oil prices, unconventional oil probably will gain a considerable market share in the short term, although conventional oil remains as a major source of global oil market in the long term.3 Therefore, these unconventional oils are potential resources that could be used to fulfill current and future energy requirements. Among these unconventional oils, bitumens from tar sand reservoirs have great potential to assist in meeting the world's rising energy demand. 4,5 The occurrence of tar sand bitumens is common in many basins worldwide, but they are mainly found in shallow reservoirs on the flanks of foreland basins in North and South America. The largest accumulations are the supergiant deposits of tar sands in the Alberta (Canada) and Eastern Venezuelan (Venezuela) basins. 6,7 In Brazil, there are tar sand bitumen accumulations in the Paraná Basin, mostly occurring in sandstones of the Triassic Pirambóia Formation. These tar sands are restricted to the eastern margin, with approximately 25 known localities spread over two areas in the state of São Paulo. The Anhembi Exudation area is one of the major heavy oil exudations in this area. The oil reservoir was estimated at 5,712,000 barrels based on a mean content of 5.5% weight oil. These bitumen deposits have a high viscosity and medium-to-high sulfur content (2-3% by weight). 8The Paraná Basin is a very large intracratonic basin in which the tar sand accumulations are attributed to the Irati-Pirambóia petroleum system. 8,9 In the Pirambóia Formation, there are four different sedimentary eolic facies...

show abstract

“…It gives no direct chemical information. Mass spectrometry is an analytical technique that produces the spectrum of the masses of the molecules [ 15 , 16 ]. They might be combined together to characterize the additional chemical information.…”

Section: Materials and Test Methodsmentioning

confidence: 99%

Investigation on Using SBS and Active Carbon Filler to Reduce the VOC Emission from Bituminous Materials

Cui

et al. 2014

Materials

View full text Add to dashboard Cite

Abstract:Bituminous materials are playing a vital role in pavement design and the roofing industry because of outstanding properties. Unfortunately, bituminous materials will release volatile organic compounds (VOC), making them non-environmentally friendly. Therefore, technologies that can be used to decrease the VOC emission are urgently required. In this research, the VOC emission and material behaviors were analyzed and compared to investigate the possibility of adding styrene butadiene styrene (SBS) and active carbon filler into bituminous materials to develop environmentally-friendly materials. Thermal gravimetric analysis-mass spectrometry (TG-MS) and ultraviolet-visible spectroscopy testing (UV-Vis) were employed to characterize the VOC emission process. Temperature sweep testing and frequency sweep testing were conducted to evaluate the rheological properties of bituminous materials. Research results indicated that the combined introduction of 4 wt% styrene butadiene styrene (SBS) and 4 wt% active carbon filler cannot only significantly lower the VOC emission speed and amount, but also improve the deformation resistance behavior at a higher temperature. SBS and active carbon filler can be used to reduce the VOC emission form bituminous materials.

show abstract

Direct Mass Spectrometry of tar sands: A new approach to bitumen identification

Cited by 13 publications

References 19 publications

A study on supercritical water gasification of black liquor conducted in stainless steel and nickel-chromium-molybdenum reactors

A study on supercritical water gasification of black liquor conducted in stainless steel and nickel-chromium-molybdenum reactors

Characterization of Acidic Compounds in Brazilian Tar Sand Bitumens by LTQ Orbitrap XL: Assessing Biodegradation Using Petroleomics

Investigation on Using SBS and Active Carbon Filler to Reduce the VOC Emission from Bituminous Materials

Contact Info

Product

Resources

About