Using ultrahigh-resolution mass spectrometry and toxicity identification techniques to characterize the toxicity of oil sands process-affected water: The case for classical naphthenic acids.
Sign Up to like & getrecommendations! Published in 2017 at "Environmental toxicology and chemistry"
DOI: 10.1002/etc.3892
Abstract: Previous assessments of oil sands process-affected water (OSPW) toxicity were hampered by lack of high-resolution analytical analysis, use of nonstandard toxicity methods, and variability between OSPW samples. We integrated ultrahigh-resolution mass spectrometry with a toxicity… read more here.
Keywords: resolution; mass spectrometry; water; toxicity ... See more keywords
Biodegradation of naphthenic acids: identification of Rhodococcus opacus R7 genes as molecular markers for environmental monitoring and their application in slurry microcosms
Sign Up to like & getrecommendations! Published in 2020 at "Applied Microbiology and Biotechnology"
DOI: 10.1007/s00253-020-10378-5
Abstract: Nowadays, the increase of the unconventional oil deposit exploitation and the amount of oil sands process-affected waters (OSPW) in tailing ponds emerges the importance of developing bio-monitoring strategies for the restoration of these habitats. The… read more here.
Keywords: bio monitoring; rhodococcus opacus; naphthenic acids; gene ... See more keywords
Biodegradation of surrogate naphthenic acids and electricity generation in microbial fuel cells: bioelectrochemical and microbial characterizations
Sign Up to like & getrecommendations! Published in 2018 at "Bioprocess and Biosystems Engineering"
DOI: 10.1007/s00449-018-1989-x
Abstract: Waters contaminated with naphthenic acids (NAs) and associated tailings are one of the major environmental challenges associated with the processing of oil sands and production of heavy oil. In the current work biodegradation of linear… read more here.
Keywords: biodegradation; microbial fuel; octanoic acid; naphthenic acids ... See more keywords
Standard method design considerations for semi-quantification of total naphthenic acids in oil sands process affected water by mass spectrometry: A review
Sign Up to like & getrecommendations! Published in 2017 at "Frontiers of Chemical Science and Engineering"
DOI: 10.1007/s11705-017-1652-0
Abstract: Naphthenic acids are a complex class of thousands of naturally occurring aliphatic and alicyclic carboxylic acids found in oil sands bitumen and in the wastewater generated from bitumen processing. Dozens of analytical methods have been… read more here.
Keywords: oil sands; mass; total naphthenic; naphthenic acids ... See more keywords
Understanding the similarities and differences between ozone and peroxone in the degradation of naphthenic acids: Comparative performance for potential treatment.
Sign Up to like & getrecommendations! Published in 2017 at "Chemosphere"
DOI: 10.1016/j.chemosphere.2017.03.113
Abstract: Ozonation at high doses is a costly treatment for oil sands process-affected water (OSPW) naphthenic acids (NAs) degradation. To decrease costs and limit doses, different peroxone (hydrogen peroxide/ozone; H2O2:O3) processes using mild-ozone doses of 30… read more here.
Keywords: degradation; treatment; naphthenic acids; ozone peroxone ... See more keywords
Continuous column adsorption of naphthenic acids from synthetic and real oil sands process-affected water (OSPW) using carbon-based adsorbents.
Sign Up to like & getrecommendations! Published in 2019 at "Chemosphere"
DOI: 10.1016/j.chemosphere.2018.09.078
Abstract: In this study, activated petroleum coke (APC) and commercial activated carbon (CAC) were used in a continuous adsorption column for removal of model naphthenic acids and organics from real oil sands process-affected water (OSPW). Diphenylacetic… read more here.
Keywords: ospw; adsorption; real oil; carbon ... See more keywords
Total Acid Number (TAN) reduction of high acidic crude oil by catalytic esterification of naphthenic acids in fixed-bed continuous flow reactor
Sign Up to like & getrecommendations! Published in 2018 at "Fuel"
DOI: 10.1016/j.fuel.2018.05.074
Abstract: Abstract High acid crude oils contain large amount of naphthenic acids which cause serious corrosion problem in petroleum industry. Therefore, the removal of naphthenic acids becomes a great concern and challenge for oil refineries. In… read more here.
Keywords: tan reduction; naphthenic acids; acidic crude; crude oil ... See more keywords
Contributions of acidic-basic sites on hybridized FER@g-C3N4 for liquid-phase decarboxylation of naphthenic acids
Sign Up to like & getrecommendations! Published in 2021 at "Fuel"
DOI: 10.1016/j.fuel.2021.120679
Abstract: Abstract The efficient removal method of acidic and corrosive organic naphthenic acids (NAs) in heavy crude oils such as benzoic acid as a model acidic component was investigated for a liquid-phase decarboxylation reaction. A novel… read more here.
Keywords: c3n4; decarboxylation; acidic basic; naphthenic acids ... See more keywords
Acid-selective mass spectrometric analysis of petroleum fractions
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Mass Spectrometry"
DOI: 10.1016/j.ijms.2018.10.029
Abstract: Abstract Naphthenic acids are cycloaliphatic carboxylic acids that are naturally-occurring constituents of petroleum. Analytical mass spectrometric methods aimed at carboxylic acids tend to involve deprotonation to generate carboxylate anions, but also produce detectable ions of… read more here.
Keywords: petroleum; acid selective; mass; petroleum fractions ... See more keywords
FT-ICR MS determination of the role of naphthenic acids on the stabilization of alkali/surfactant/polymer emulsified effluents: A field study
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2019.04.047
Abstract: Abstract Numerous Alkali/Surfactant/Polymer flooding (ASP) projects have been developed worldwide. Nevertheless, some disadvantages have limited the success of ASP during the execution in field, such as injection lines scaling and strong emulsification of the produced… read more here.
Keywords: field; surfactant polymer; oil; naphthenic acids ... See more keywords
Adverse effects of naphthenic acids on reproductive health: a focus on placental trophoblast cells.
Sign Up to like & getrecommendations! Published in 2019 at "Reproductive toxicology"
DOI: 10.1016/j.reprotox.2019.09.002
Abstract: There is considerable concern that naphthenic acids (NA) related to oil extraction can negatively impact reproduction in mammals yet the mechanisms are unknown. Since placental dysfunction is central to many adverse pregnancy outcomes, the goal… read more here.
Keywords: production; placental trophoblast; effects naphthenic; naphthenic acids ... See more keywords