Characterisation of petrologic end members of oil sands from the athabasca region, Alberta, Canada

Osacký, Marek; Geramian, Mirjavad; Dyar, M. D.; Sklute, E. C.; Val'ter, M. B.; Ivey, Douglas G.; Liu, Qingxia; Etsell, Thomas H.

doi:10.1002/cjce.21860

Cited by 20 publications

(29 citation statements)

References 49 publications

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“…The highest standard deviation of the water content was found for the MC supernatant at 1 min (±0.016 %), which could be related to the heterogeneous nature of this end member. This conjecture is consistent with previously published papers …”

Section: Discussionsupporting

confidence: 94%

“…The shoulder near 420 °C was attributed to the low amount of siderite in the SFS of ES‐1, 7.5, and 15 min. The band attributed to the siderite mineral at 420 °C was reported by Osacky et al and Patterson et al, who identified carbonates in oil sands and coal ores, respectively . The band near 710 °C present in MC‐1, 7.5, and 15 min was mainly due to the thermal decomposition of carbonates (i.e., calcite, dolomite, and siderite).…”

Section: Discussionsupporting

confidence: 61%

“…Four oil sands ores mined in the Fort McMurray area, collected by Syncrude Canada Ltd. from their North Mine in November 2012 (NM12), were used in the current study. Each mined ore was essentially a representative of one of the four petrologic end members, namely the following: estuarine sand (ES); estuarine claystone (EC); marine sand (MS); and marine claystone (MC) . The sands and claystones were manually separated from the as‐received (ASRE) samples, disaggregated, and passed through a sieve (aperture size of 6.3 mm, according to ASTM E.11).…”

Section: Methodsmentioning

confidence: 99%

“…Previous studies have reported that kaolinite and illite are the main clay constituents whereas the minor clays are smectite, chlorite, and mixed‐layer clay minerals in Alberta oil sands . Different types of clay minerals may have differing effects on the processability of oil sands ore during extraction.…”

Section: Introductionmentioning

confidence: 99%

“…Although the role of various minerals in the oil sands in water‐based extraction has been identified, there is insufficient information about the surface properties of various minerals, especially nano and microsize minerals (NMM), during non‐aqueous bitumen extraction and post‐extraction solvent recovery. As previous studies have identified, the most important factor affecting bitumen extraction processes (either aqueous or non‐aqueous) is oil sands composition . Therefore, it is crucial to understand the influence of water, bitumen, and solids, particularly nano and microsize species, on the extraction process .…”

Section: Introductionmentioning

confidence: 99%

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Influence of Oil Sands Composition on Bitumen Quality During Non‐Aqueous Bitumen Extraction from the Athabasca Deposit

et al. 2018

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The aim of the present work is to identify the most important species affecting a non‐aqueous bitumen extraction process and bitumen quality. This investigation was carried out on four petrologic end member samples from Syncrude's North Mine collected in 2012 (NM12), i.e., marine claystone (MC), marine sand (MS), estuarine claystone (EC), and estuarine sand (ES). Each end member was separately mixed with cyclohexane at a ratio of 40:60 (cyclohexane:end member), and the bitumen‐cyclohexane solutions were collected at different settling times (1–30 min). These solutions were analyzed to determine the amount, particle size distribution, and mineralogical composition of suspended fine solids (SFS), water content, as well as the bitumen content using a focused beam reflectance measurement (FBRM) particle size analyzer, Karl Fischer (KF) titration, x‐ray diffraction (XRD), quantitative XRD (QXRD), and elemental analysis. The SFS was composed of mainly illite and kaolinite after cyclohexane extraction from MC, MS, EC, and ES. Although mixed layer expandable clay minerals (i.e., illite‐smectite and kaolinite‐smectite) were identified in the original clay, end members (EC and MC), illite‐smectite, and kaolinite‐smectite were not observed in the SFS of the bitumen‐cyclohexane solutions obtained from the four petrologic end members. The SFS content and bitumen quality of the bitumen product were affected slightly but significantly by the end member composition and settling time, respectively. Illite and kaolinite were identified as the main minerals in the SFS of the bitumen products after relatively long settling times.

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Section: Discussionsupporting

confidence: 94%

Section: Discussionsupporting

confidence: 61%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of Oil Sands Composition on Bitumen Quality During Non‐Aqueous Bitumen Extraction from the Athabasca Deposit

et al. 2018

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Characterization of four petrologic end members from Alberta oil sands and comparison between different mines and sampling times

et al. 2017

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The current research was performed on four petrologic end members samples from Syncrude's North Mine collected in 2012 (NM12), i.e. marine clay (MC), marine sand (MS), estuarine clay (EC), and estuarine sand (ES). The mineralogical compositions of the four petrological end members were determined using X-ray diffraction (XRD), quantitative XRD (QXRD), elemental analysis, and particle size distribution (PSD) measurements.Bulk samples from the four petrologic end members, after bitumen removal, were mainly composed of clay minerals (kaolinite, illite, chlorite, and mixed-layer expandable clays) and non-clay minerals such as quartz, carbonates, feldspars, and traces of TiO 2 minerals, gypsum, and pyrite. Bulk samples of the clay end members were composed of significantly higher amounts of clay minerals and lower amounts of quartz compared with the bulk samples of the sand end members. XRD analysis of oriented preparations (air dried-54 % RH and ethylene glycolated) of the < 0.2 mm fractions of the four end members showed that interstratified illite-smectite of high ($30 %) and low ($10 %) expandability were observed only in clay-rich end members, i.e. NM12-EC and MC, respectively. Kaolinite-smectite was only found in the < 0.2 mm fraction of the NM12-MC with an expandability between 5 and 10 %. Interstratification of illite-smectite was observed in the < 0.2 mm fraction of NM09-MC and EC samples but the expandability was only 10 % for both fractions. However, kaolinite-smectite was not found in the same fraction for NM09-MC and EC. ES and EC had the highest and lowest bitumen contents, respectively, for the NM12, NM09, and AM10 samples.

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Oscillatory rheometry to characterize polymer flocculation of fluid fine tailings

et al. 2021

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Characterisation of petrologic end members of oil sands from the athabasca region, Alberta, Canada

Cited by 20 publications

References 49 publications

Influence of Oil Sands Composition on Bitumen Quality During Non‐Aqueous Bitumen Extraction from the Athabasca Deposit

Influence of Oil Sands Composition on Bitumen Quality During Non‐Aqueous Bitumen Extraction from the Athabasca Deposit

Characterization of four petrologic end members from Alberta oil sands and comparison between different mines and sampling times

Oscillatory rheometry to characterize polymer flocculation of fluid fine tailings

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