Composition of Low-Temperature Thermal Extracts from Colorado Oil Shale.

Robinson, W.E.; Cummins, J.J.

doi:10.1021/je60005a019

Cited by 23 publications

(3 citation statements)

References 4 publications

(7 reference statements)

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“…Robinson and Cummins [11] studied decomposition of 350 g carbonaceous Colorado oil shale containing 35% of OM in 810 mL tetralin in the range of temperatures 25-350 • C and durations 24-144 h. The total yield of extract using subsequently tetralin and benzene increased sharply in the range of temperatures 300-350 • C reaching 85% after 48 h and 95% from kerogen after 144 h. The gas yield was about 6% consisting mainly of moles of hydrogen, carbon dioxide, and methane. The extract obtained at 350 • C was fractionated between 45-50% of pentane insolubles and pentane soluble material.…”

Section: Reaction Of Solid Fuels With Tetralin In Inert Atmospherementioning

confidence: 99%

Catalytic Thermal Liquefaction of Oil Shale in Tetralin

Johannes

Tiikma

Luik

et al. 2012

ISRN Chemical Engineering

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A short review on the publications concerning thermal liquefaction of solid fuels in the environment of hydrogen donor solvents and catalysts is compiled. New experimental results on the catalytic thermal dissolution of oil shale in tetralin as the hydrogen donor solvent in a batch autoclave are presented. The impacts of pyrolysis temperature, duration, and catalyst type on the yields of gas, maltenes, asphaltenes, preasphaltenes, and coke in the presence of tetralin are described.

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Section: Reaction Of Solid Fuels With Tetralin In Inert Atmospherementioning

confidence: 99%

Catalytic Thermal Liquefaction of Oil Shale in Tetralin

Johannes

Tiikma

Luik

et al. 2012

ISRN Chemical Engineering

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“…The large fraction of inorganics makes it difficult to study the organic fraction in detail, so that there has, for a long time, been considerable interest in treating the oil shale to obtain an organic matter-rich fraction. Lengthy physical procedures, which have the advantage of not changing the structure of the organic material, have been used, such as sink-float [5], making up a slurry of oil shale in a mixture of n-cetane and water and separating the aqueous phase which become charged with mineral matter [6], and froth flotation [7], often combined with mild acid treatment to remove carbonates and other mineral species.…”

Section: Introductionmentioning

confidence: 99%

Isolation of Organic Matter by the Naoh-HCL Method From Two Marine Oil Shales Using Oven and Sealed Autoclave Techniques

Alhesan¹,

Marshall²,

Jackson³

et al. 2019

Oil Shale

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Organic matter (OM) was isolated from two marine oil shales, El-Lajjun and Julia Creek, using NaOH-HCl and humin and humic acid fractions separated. Two treatments were required to reduce humin ash yield to below 11 wt% db. The humin yield of the autoclave method was 80 wt% of OM (dry mineral-matter-free, dmmf), compared to only 20-60 wt% dmmf for the oven method, possibly due to the increased NaOH solution strength and some oxidation. Oven and autoclave methods both gave humin similar in chemical structure to shale OM, regardless of yield. This similarity has implications as to shale OM structure.

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“…values of the n-paraffins found in crude oil and those found in recent sediments. Normal paraffins were identified previously in this laboratory in room temperature tetralin extracts of kerogen (12) and from reduced kerogen oxidation products (13).…”

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confidence: 99%