Evaluation of oil potential and pyrolysis kinetics of renewable fuel and shale samples by Rock-Eval analyzer

Johannes, Ille; Kruusement, Kristjan; Veski, R.

doi:10.1016/j.jaap.2006.12.001

Cited by 30 publications

(17 citation statements)

References 12 publications

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“…The carbonate contents of oil shales from Estonia and Jordan account for approximately 0.6–0.8 g/g (60–80 mass%) on a dry ash mass basis, consisting mainly of calcite and dolomite greater than 0.95 g/g (95 mass%) of their contents . The global activation energies of oil shale pyrolysis processes determined in this study are in close agreement with the values for each stage reported as 132–200 kJ/mol and 273 kJ/mol for Estonian oil shales, and 65–75 kJ/mol and 171 kJ/mol for Jordanian oil shales, respectively . In addition, comparison of literature data shows that the kinetic parameters are unique to each individual case of oil shale, as the values for Turkish, Moroccan, and Chinese oil shales are reported within the ranges of 13–70 kJ/mol, 70–110 kJ/mol, and 240–270 kJ/mol, respectively .…”

Section: Resultssupporting

confidence: 85%

Pyrolysis and char oxidation characteristics of oil shales and coal in a thermogravimetric analyzer

Park

Song

2017

Can J Chem Eng

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Non‐isothermal thermogravimetric analysis was carried out on two different oil shales and sub‐bituminous coal in order to evaluate effects of the fuel properties and compare the reaction characteristics. The samples and their chars after the devolatilization were heated up to 900 °C at a constant heating rate of 10 K/min under inert and oxidizing atmospheres, respectively. Experimental results exhibit distinct behaviour between the samples for both pyrolysis and char oxidation processes. Pyrolysis of oil shale occurs in two temperature regimes corresponding to its organic and mineral degradation, and mineral matter plays important roles in production of the residual char at the second pyrolysis stage and its reactivity to the subsequent char oxidation. Kinetic analysis was performed using the global one‐ and multi‐step models with nth order reaction mechanism. Organic devolatilization processes of coal and oil shale are analyzed by three‐ and two‐step models, respectively, however mineral degradation of oil shale and char oxidation are analyzed by a one‐step model. Finally, a reasonable fit to the experimental data can be achieved for all the samples and their chars at different atmospheres.

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Section: Resultssupporting

confidence: 85%

Pyrolysis and char oxidation characteristics of oil shales and coal in a thermogravimetric analyzer

Park

Song

2017

Can J Chem Eng

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“…Rock-Eval (RE) characterizes the hydrocarbon released during pyrolysis. In order to identify and quantify the stages of kerogen decomposition and other reactions during pyrolysis, we performed TGA and RE pyrolysis experiments at four heating rates (10,20,30, and 40°C/min) on two oil shales from Huadian and Fushun in northeast China. We determined the kinetic parameters of oil shale pyrolysis by applying parallel first-order reaction models to data from TGA and RE experiments.…”

Section: Introductionmentioning

confidence: 99%

“…RE is used extensively to study the kinetics of petroleum generation [16][17][18], where the kinetic parameters from models of hydrocarbon conversion can be extrapolated to geological conditions. RE can also evaluate the kinetics of oil shale pyrolysis [19][20][21]. Used together, TGA and RE can record the total weight loss and hydrocarbon generation, respectively, thereby revealing the relative importance of kerogen versus mineral decomposition during pyrolysis.…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis kinetics of oil shale from northeast China: Implications from thermogravimetric and Rock–Eval experiments

Han

Zhong

Huang

et al. 2015

Fuel

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“…The key to produce oil from such heavy oil resources is to reduce oil viscosity, and that is best accomplished by heating these resources up to 500°C which is known as the pyrolysis temperature (Farouq Ali, 2003;Johannes et al, 2007). The Bati Raman and Camurlu fields are two well known sizable heavy-oil deposits in Turkey.…”

Section: Field Characteristicsmentioning

confidence: 99%

Experimental and Numerical Modeling of Heavy-Oil Recovery by Electrical Heating

2008

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Electrical heating for heavy-oil recovery is not a new idea but commercialization and wider application of this technique require detailed analyses for determination of optimal application conditions. In this study, applicability of electrical heating for heavy-oil recovery from two heavy-oil fields in Turkey (Bati Raman and Camurlu) was tested experimentally and numerically. The physical and chemical properties of the oil samples for the two fields were compiled and measured. Then, core samples were exposed to electrical heating and oil recovery performances by the retort technique were determined for different conditions. Experiments with and without using iron powder were analyzed and in-situ viscosity reduction during the heating process was determined through a history matching process using the simulation of the laboratory experiments. Experimentally obtained oil recovery and temperature distributions were used in this history matching exercise. Iron powder addition to oil samples causes a decrease in the polar components of oil and the viscosity of oil can strongly be influenced by the magnetic fields created by iron powders. Therefore, three different iron powder types at three different doses were tested to observe their impact on oil recovery. Experimental observations showed that viscosity reductions were accomplished as 88% and 63% for Bati Raman and Camurlu crude oils, respectively, after 0.5% Fe addition, which was determined as the optimum type and dose for both crude oil samples. Different parameters (thermal diffusion coefficients, oil viscosity, and relative permeabilities) that are needed in numerical modeling as data were determined through experimentally validated numerical modeling study. Furthermore, field scale recovery was tested numerically using the parameters obtained from laboratory scale experimental and numerical modeling results. The power of the system, operation period and the number of heaters were optimized. Economic evaluation done using the field scale numerical modeling study showed that the production of one barrel petroleum costs about 5 USD and at the end of 70 days, 320 barrels petroleum can be produced. When 0.5% Fe is added, oil production increased to 440 barrels for the same operational time period.

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Evaluation of oil potential and pyrolysis kinetics of renewable fuel and shale samples by Rock-Eval analyzer

Cited by 30 publications

References 12 publications

Pyrolysis and char oxidation characteristics of oil shales and coal in a thermogravimetric analyzer

Pyrolysis and char oxidation characteristics of oil shales and coal in a thermogravimetric analyzer

Pyrolysis kinetics of oil shale from northeast China: Implications from thermogravimetric and Rock–Eval experiments

Experimental and Numerical Modeling of Heavy-Oil Recovery by Electrical Heating

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