scholarly journals Carbon Sequestration Capacity in Oil Shale Production Zones, CRADA No. TC02131.0

2011 ◽  
Author(s):  
S Carroll
Keyword(s):  
Carbon Sequestration ◽  
Oil Shale

Corrigendum: Carbon sequestration in a chronosequence of Scots pine stands in a reclaimed opencast oil shale mine

2010 ◽  
Vol 40 (3) ◽  
pp. 595-595
Author(s):  
Helen Karu ◽  
Robert Szava-Kovats ◽  
Margus Pensa ◽  
Olevi Kull
Keyword(s):  
Carbon Sequestration ◽  
Scots Pine ◽  
Oil Shale ◽  
Pine Stands ◽  
Scots Pine Stands

Carbon sequestration in a chronosequence of Scots pine stands in a reclaimed opencast oil shale mine

2009 ◽  
Vol 39 (8) ◽  
pp. 1507-1517 ◽  
Author(s):  
Helen Karu ◽  
Robert Szava-Kovats ◽  
Margus Pensa ◽  
Olevi Kull
Keyword(s):  
Carbon Sequestration ◽  
Scots Pine ◽  
Oil Shale ◽  
Forest Succession ◽  
Carbon Accumulation ◽  
Total Carbon ◽  
Litter Production ◽  
Soil Profiles ◽  
Degraded Land ◽  
Tree Layer

Ecosystems that develop on mine spoil can serve as significant sinks for CO2. The aim of this study was to estimate the rate of carbon accumulation and its distribution along forest ecosystem partitions in young Scots pine ( Pinus sylvestris L.) plantations in the Narva oil shale opencast, Estonia. The tree layer was measured in 2004 in 13 stands afforested with 2-year-old seedlings during 1968 to 1994. Three stands (afforested in 1990, 1983, and 1968) were selected for detailed analysis of the carbon sequestration. Soil profiles were sampled in these stands in 2005. Radiocarbon analysis combined with a simple model of litter production was used to differentiate between plant-derived recent carbon and carbon stemming from fragments of oil shale. Total carbon accumulated since afforestation in vegetation, forest floor, and A horizon was 7.8 t·ha–1 in the stand established in 1990, 34.5 t·ha–1 in that established in 1983, and 133.4 t·ha–1 in that established in 1968. Most of the sequestered carbon was allocated to tree stems; their portion increasing with age from 28% to 51%. The portion of recent soil organic carbon increased from 5% to 23%, which shows that soils contribute significantly to carbon accumulation during early forest succession on degraded land.

The Value of a Tree: Comparing Carbon Sequestration to Forest Products

Science Scope ◽  
2014 ◽  
Vol 037 (07) ◽  
Author(s):  
Jennifer Schon ◽  
R. Hougham ◽  
Karla Bradley Eitel ◽  
Steve Hollenhorst
Keyword(s):  
Carbon Sequestration ◽  
Forest Products

Operation of an advanced 1/2 ton per day oil shale retort

1994 ◽  
Author(s):  
John Stehn ◽  
Scott Carter ◽  
Asmund Vego
Keyword(s):  
Oil Shale

Spectro-mechanical Characterization of Aromaticity and Maturity of Kerogens in Oil Shale at 6 nm Spatial Resolution

2018 ◽  
Author(s):  
Devon Jakob ◽  
Le Wang ◽  
Haomin Wang ◽  
Xiaoji Xu
Keyword(s):  
Spatial Resolution ◽  
Oil Shale ◽  
Infrared Imaging ◽  
Mechanical Characterization ◽  
Optical Diffraction ◽  
Chemical Compositions ◽  
Valuable Insight ◽  
Eagle Ford Shale

<p>In situ measurements of the chemical compositions and mechanical properties of kerogen help understand the formation, transformation, and utilization of organic matter in the oil shale at the nanoscale. However, the optical diffraction limit prevents attainment of nanoscale resolution using conventional spectroscopy and microscopy. Here, we utilize peak force infrared (PFIR) microscopy for multimodal characterization of kerogen in oil shale. The PFIR provides correlative infrared imaging, mechanical mapping, and broadband infrared spectroscopy capability with 6 nm spatial resolution. We observed nanoscale heterogeneity in the chemical composition, aromaticity, and maturity of the kerogens from oil shales from Eagle Ford shale play in Texas. The kerogen aromaticity positively correlates with the local mechanical moduli of the surrounding inorganic matrix, manifesting the Le Chatelier’s principle. In situ spectro-mechanical characterization of oil shale will yield valuable insight for geochemical and geomechanical modeling on the origin and transformation of kerogen in the oil shale.</p>

Transgressive-regressive cycles in the metalliferous, oil shale-bearing Heath Formation (UpperMississippian), central Montana

Stratigraphy ◽  
2017 ◽  
Vol 14 (1-4) ◽  
pp. 97-122 ◽  
Author(s):  
Julie A. Dumoulin ◽  
Craig A. Johnson ◽  
Karen D. Kelley ◽  
Palma Jarboe ◽  
Paul Hackley ◽  
...  
Keyword(s):  
Oil Shale ◽  
Central Montana

The use of insoluble matter of Moroccan oil shale for removal of dyes from aqueous solution

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Methylene Blue ◽  
Oil Shale ◽  
Heating Temperature ◽  
Blue Dye ◽  
Adsorption Capacities ◽  
Experimental Parameters ◽  
Initial Ph ◽  
New Material ◽  
Activating Agent ◽  
Moderate Cost

The study aims to use an adsorbent natural based of Moroccan oil shale of Timahdit area (Y layer) in a physical-chemical adsorption process for treating industrial discharges colorful. The used adsorbent is the insoluble party of the sub-critical extraction of decarbonized oil shale of Timahdit. The tests performed on the methylene blue (MB), showed a strong elimination in the first 10 minutes. The influences of various experimental parameters were studied: mass ratio of adsorbent, time and temperature of thermal treatment, contact time, pH of MB and heating temperature of solution on the parameters of material were studied. The experimental results have shown that the adsorption of methylene blue dye by the adsorbent is more than 90% at initial pH a range 6-7 at room temperature for 30 minutes. The process is simple and the adsorbent produced is a new material with interesting adsorption capacities of moderate cost which does not require an activating agent and can be used as industrial adsorbent for the decontamination of effluents containing organic pollutants.

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