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Oil Shale
Scopus
ISSN 0208-189X · Estonian Academy Publishers · 950 artikel di indeks
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Environmental advantages of oil shale ash as a secondary raw material: a focus on dioxin levels
Secondary raw materials, such as ashes from the combustion of various fuels, are frequently used as alternatives to virgin raw materials. Among these, oil shale ash, a residue from oil shale power production and the shale oil industry, presents significant potential for use in sectors such as…
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Ionic liquids, [EMIM]Cl and [BMIM]SCN for sulfur removal from shale oils
Oil shales from Attarat and Sultani were pyrolyzed at 550 °C to produce shale oils for the present study. The organic sulfur content of the two shale oils was determined to be 9.3 and 10.5 wt.%, respectively. Two ionic liquids (IL), 1-ethyl-3-methylimidazolium chloride ([EMIM]Cl) and…
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Reservoir characteristics and influencing factors of multi-lithofacies shales in the Lianggaoshan Formation, Northeast Sichuan Basin
This study focuses on the shale of the Lianggaoshan Formation in the Northeast Sichuan Basin, aiming to analyze the pore structure characteristics and influencing factors of its lithofacies â critical for shale oil exploration, as the area has seen major shale oil and gas exploration breakthroughs…
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Genesis and depositional environment of organic-rich sediments in the Neogene organic-rich sediments from the Aleksinac deposit (Serbia): Part B
To determine the characteristics of the palaeoenvironment that affected organic richness, the Neogene organic-rich sediments in the Upper layer of the Aleksinac deposit (Dubrava block, Serbia) were examined. The studied samples are presumed to be of andesitic to felsic origin, with evidence of…
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Major, trace, and rare earth elements geochemistry and enrichment in the Neogene organic-rich sediments from the Aleksinac deposit (Serbia): Part A
The composition of inorganic matter and the enrichment of trace and rare earth elements (TEs and REEs) in the Neogene organic matter-rich sediments in the Upper layer of the Aleksinac deposit (Dubrava block, Serbia) were analysed. Correlation analysis clearly showed that TEs and REEs are associated…
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Review and outlook on the application of thermal-hydraulic-mechanical coupling simulation in in-situ oil shale mining
Against the backdrop of surging global energy demand, oil shale, as a plentiful unconventional energy resource, has emerged as a research hotspot for in-situ exploitation. Oil shale pyrolysis involves temperature, seepage, and stress field coupling, leading to surface deformation and fracture…
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Well pattern-controlled heat transfer in in-situ oil shale conversion: a review of numerical modeling
As an important alternative to conventional oil and gas resources, oil shale holds significant strategic importance. While in-situ conversion technology has addressed the challenges of deep oil shale mining, heat transfer efficiency remains the core bottleneck for its large-scale application…
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Effect of organic macerals on hydrocarbon generation ability of oil shale and coal and establishment of a contribution model – constraints from machine learning
To quantify the impact of organic macerals on hydrocarbon generation in oil shale and coal, this study analyzed 403 datasets. The results show distinct differences in maceral composition between the two materials. Using a random forest model with aquatic liptinite, terrigenous liptinite, vitrinite…
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Kerogen destruction and partial transfer of metals to shale oil: detection and quantification
Oil shale is pyrolyzed to investigate the transfer of selected metals (Fe, V, Ni, Mn, and Pb) to shale oil. Several heating rates are employed to study the transfer process during the heating of oil shale under a nitrogen environment. The migration or transfer of Fe, V, Ni, Mn, and Pb from oil…
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Characteristics and facies classification of oil shales in major continental basins of China
The continental oil shales of China exhibit pronounced heterogeneity in organic matter abundance, mineral composition, and sedimentary structures. Characterizing their lithofacies is therefore fundamental for reconstructing depositional environments, assessing resource potential, and guiding…
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Numerical investigation of oil shale combustion characteristics in a high-low differential velocity CFB boiler using the CPFD model
This study employs the computational particle fluid dynamic model to simulate a 65 t/h oil shale-fired high-low differential velocity circulating fluidized bed (CFB) boiler. The effects of the excess air ratio on furnace temperature, gas composition, particle residence time, and pollutant emissions…
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Optimization of oil shale retorting process based on heat transfer model
To optimize the oil shale retorting process and improve the thermal efficiency of the retort, a heat transfer model of the oil shale retorting in the Fushun-type retort was established based on the gas-solid heat transfer equation. The orthogonal experimental method was used, with hot air volume…
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Methylation of kukersite kerogen – estimation of the content of free hydroxyl groups
Derivatization of the kerogen backbone changes its chemical reactivity profile. In this study, kukersite kerogen was methylated with dimethyl carbonate. The substance was analyzed before and after processing by Fourier transform infrared spectroscopy, 13C cross-polarization/magic angle spinning…
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Heat transfer optimization in oil shale rotary retorting via DEM and BP neural network
To enhance heat transfer between shale ash and oil shale particles in a rotary retorting furnace, this study coupled the discrete element method (DEM) with a particle heat conduction model to simulate mixing and heat transfer, examining the effects of particle filling ratio, furnace rotational…
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Numerical investigation of superheated steam injection for in situ oil shale exploitation: fracture network optimization and energy efficiency analysis
This study numerically investigates in situ oil shale exploitation by superheated steam injection, emphasizing coupled thermo-hydraulic-mechanical processes. An anisotropic multi-field model was developed to evaluate how hydraulic fracture distribution and thermally activated weak planes affect…
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Review on in situ conversion of oil shale
In situ conversion technology for oil shale is an innovative method of energy extraction that involves the underground heating of oil shale reservoirs to thermally crack kerogen into oil and gas. This approach avoids the environmental damage and high energy consumption associated with traditional…
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Logging-based prediction of organic geochemical parameters in oil shale during thermal evolution using the XGBoost algorithm
Oil shale in large basins undergoes multiple evolutionary stages, limiting the applicability of a single logging-based prediction model. This study focuses on the oil shale of the Qingshankou Formation in the Songliao Basin, using gamma ray (GR), deep resistivity (LLD), acoustic travel time (DT)…
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Oil shale electric heater and its optimization: a review
Oil shale is a type of unconventional energy with abundant reserves. In the in situ mining technology of oil shale, electric heating technology has become a research hotspot due to its multiple advantages, and electric heater is the core of this technology. Despite growing interest in electric…
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Organic-rich shale in Lianggaoshan Formation: study on macroscopic and microscopic mechanical properties and mechanism of influencing factors
This study investigates the mechanical properties of organic-rich shale from the Lianggaoshan Formation using uniaxial and triaxial tests, nanoindentation, and atomic force microscopy. Key parameters such as elastic modulus and hardness are analyzed with NanoScope Analysis software. The results…