Results 31 to 40 of about 980 (154)

COMPOSITIONAL VARIABILITY IN BITUMENS FROM EOLIC SEDIMENTARY FACIES OF PIRAMBÓIA FORMATION, PARANÁ BASIN, BRAZIL: CHARACTERIZING BIODEGRADATION [PDF]

open access: yesGeochimica Brasiliensis, 2016
Bitumen accumulations were identified within eolic sedimentary facies of Pirambóia Formation, in the eastern margin of Paraná Basin in Brazil. This basin is known to have great mineable oil sand accumulations (tar sands), with one of the 19 occurrences ...
Laercio Lopes Martins   +3 more
doaj  

OIL SLUDGE AND TAR SANDS AS AN IMPORTANT SOURCE OIL AND PROBLEMATIC ENVIRONMENTAL FACTORS

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
The paper represents the results of implementation of liquid and supercritical fluid extraction processes in order to extract oil-products from oil sludge.
V. F. Khairutdinov, F. M. Gumerov
doaj   +1 more source

Equilibrium and Kinetic Modelling of Phenol Adsorption onto Mixtures of Tar Sands and Titania

open access: yesAdsorption Science & Technology, 2006
The isotherms and kinetics of adsorption of phenol onto mixtures of physically-activated tar sands and titania were studied at 298 K. Three kinetic models, i.e., pseudo-first order, pseudo-second order and intraparticle diffusion, were applied to fit the
Lua'y Zeatoun
doaj   +1 more source

Neutral Ground and Naming: The Implications of Tar Sands and Oil Sands for Environmental Debates in Alberta

open access: yesCritical Approaches to Discourse Analysis across Disciplines, 2016
Lexical choices reflect stances of evaluation and position speakers in relation to each other. With highly controversial issues however, speakers’ terms can index polarized positions, leaving little room for those who wish to indicate a more neutral ...
Keely Kidner
doaj  

Biosurfactants: Promising Molecules for Petroleum Biotechnology Advances

open access: yesFrontiers in Microbiology, 2016
The growing global demand for sustainable technologies that improves the efficiency of petrochemical processes in the oil industry has driven advances in petroleum biotechnology in recent years.
DARNE GERMANO DE ALMEIDA   +6 more
doaj   +1 more source

Reservoir geology and effects on exploitation of natural bitumen deposits (Nigerian deposits as a case study)

open access: yesJournal of Petroleum Exploration and Production Technology, 2018
Geological investigation have led to discovery of huge tar sand deposits within Afowo Formation of the Turonian–Maastrichtianage (95.9–66.0 Ma) in the Nigerian sector of the Eastern Dahomey Basin.
A. Akinmosin   +2 more
doaj   +1 more source

Thin or Thick Inclusiveness? The Constitutional Duty to Consult and Accommodate First Nations in Canada

open access: yesThe London Journal of Canadian Studies, 2019
What has the addition of aboriginal rights to the Canadian constitution in 1982 meant for the place of First Nations’ interests in the Canadian constitutional order?
doaj   +2 more sources

Comparing Critical Capitalist Commodity Chains in the Early Twenty-first Century: Opportunities For and Constraints on Labor and Political Movements

open access: yesJournal of World-Systems Research, 2015
There have been a number of critical historical opportunities for labor to exert power by interrupting long distance flows of commodities at the extraction, processing, and transport stages. This vulnerability has been used by workers in these industries
Elizabeth Sowers   +2 more
doaj   +1 more source

Réflexions sur la notion de réserves énergétiques The Concept of Energy Reserves

open access: yesOil & Gas Science and Technology, 2006
L'étude qui est présentée ici rassemble les estimations les plus récentes relatives aux réserves énergétiques. Les combustibles nucléaires, les combustibles solides, les sables et schistes bitumineux sont tour à tour passés en revue et l'importance de ...
Boy De la Tour X.   +2 more
doaj   +1 more source

The Nature of Athabasca Tar Sand (Canada) and Tar Sand Derivatives. A Comparison with Coal-hydrogenolysis Products [PDF]

open access: yesBulletin of the Chemical Society of Japan, 1979
Abstract Solvent extracts of Athabasca tar sand were analyzed by the Brown-Ladner method, the Takeya et al. method, and the Speight method on the basis of the 1H-NMR data and by 13C-NMR spectroscopy. The structural characteristics of Athabasca tar sand derivatives were also compared with those of coal-hydrogenolysis products. The results
Ryoichi Yoshida   +8 more
openaire   +1 more source

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