Gaseous Emission and Thermal Analysis During Co-Combustion of Oil Shale Semi-Coke and Sawdust Using Tg-Ftir

QING, W; Yang, Xiaomeng; HONGPENG, L; XIYAN, L; MINGSHU, C

doi:10.3176/oil.2015.4.05

Cited by 12 publications

(10 citation statements)

References 19 publications

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“…[24][25][26] According to these studies, it has been reported that the value of activation energy decreases with the proportion of biomass mixed with SC and OS. [24][25][26] According to these studies, it has been reported that the value of activation energy decreases with the proportion of biomass mixed with SC and OS.…”

Section: Kinetic Analysis Of the Oxidation Processmentioning

confidence: 97%

“…In general, thermal behaviour and kinetics of different OS, SC, and PSD blends have been observed by several authors. [24][25][26] According to these studies, it has been reported that the value of activation energy decreases with the proportion of biomass mixed with SC and OS. Besides, activation energy increases with the increase in SC mass fraction in the blend.…”

Section: Kinetic Analysis Of the Oxidation Processmentioning

confidence: 97%

“…Several studies have considered co-firing of unconventional fuels, including OS and SC, with other fuels (biomass, sludge, waste, etc) [23][24][25][26][27] to better understand the interactions between these fuels and support designers and operators when they evaluate the feasibility of different fuel blends for varying combinations in their installations. Trikkel et al performed combustion tests with SC and its mixtures with small additions of OS (from Estonia) on the 50 kW circulating fluidized bed combustion (CFBC) test rig.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, it was advised that SC with low calorific value should be burnt together with OS, as well as at a higher oxygen concentration and in the FB combustor. The effect of cofiring of sawdust with SC (with different ratios) and related gaseous emissions were investigated by Qing et al 25 using TG analysis and Fourier transform infrared spectroscopy. The main conclusion of this study was that biomass blended with SC is a promising option for cofiring because of the formation of a sufficient amount of volatile matter to maintain stability in ignition and combustion.…”

Section: Introductionmentioning

confidence: 99%

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Thermogravimetric analysis and process simulation of oxy-fuel combustion of blended fuels including oil shale, semicoke, and biomass

et al. 2018

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Summary Oxy‐fuel (OF) combustion is considered as one of the promising carbon capture and storage technologies for reducing CO2 emissions from power plants. In the current work, the thermal behaviour of Estonian oil shale (EOS) and its semicoke (SC), pine saw dust, and their blends were studied comparatively under model air (21%O2/79%Ar) and OF (30%O2/70%CO2) conditions using thermogravimetric analysis. Mass spectrometry analysis was applied to monitor the evolved gases. The effect of SC and pine saw dust addition on different combustion stages was analysed using kinetic analysis methods. In addition, different co‐firing cases were simulated using the ASPEN PLUS V8.6 (APV86) software tool to evaluate the effects of blending EOS with different biomass fuels of low and high moisture contents. The specific boiler temperatures of each simulated case with the same adjusted thermal fuel input were calculated while applying the operation conditions of air and OF combustion. According to the experiment and process simulation results, the low heating value and high carbonate content of SC brings along endothermic decomposition of carbonates, which negatively affects the heat balance during the conventional co‐combustion of EOS with SC. Instead, firing of EOS with SC and biomass in OF process can be an effective solution to reduce the environmental impact in terms of the reduction of CO2 emissions and ash. Furthermore, the sensible heat from SC can positively affect the energy balance of the system as the endothermic effect of decomposition of CaCO3 (for both EOS and SC) can be avoided in OF combustion.

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Section: Kinetic Analysis Of the Oxidation Processmentioning

confidence: 97%

Section: Kinetic Analysis Of the Oxidation Processmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Thermogravimetric analysis and process simulation of oxy-fuel combustion of blended fuels including oil shale, semicoke, and biomass

et al. 2018

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“…The bands at 2240-2060 cm −1 are characteristic for CO produced due to incomplete combustion. It was mainly formed by the breaking of C-O-C and C=O [32]. However, all the carbon-containing compounds mentioned above can be further oxidized to CO 2 with further temperature treatment.…”

Section: Colloids Interfaces 2019 3 For Peer Reviewmentioning

confidence: 99%

Influence of the Synthesis Method on the Structural Characteristics of Novel Hybrid Adsorbents Based on Bentonite

Sternik

Galaburda

Bogatyrov

et al. 2019

Colloids and Interfaces

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New hybrid composite materials were prepared by polymerization of resorcinolformaldehyde resins in the presence of bentonite with various contents of polymer and water, and then exposed to pyrolysis in an inert atmosphere at 800 • C. The influence of the filler and synthesis method on the morphological, textural and structural characteristics has been described. The materials were characterized using low temperature nitrogen adsorption-desorption, small angle X-ray scattering, scanning electron microscopy, Raman spectroscopy, differential scanning calorimetry (DSC), and thermogravimetry analysis (TGA). The maximal values of the specific surface area of organo-bentonite and carbonized samples were 254 and 200 m 2 /g, respectively, which is much larger than that of the initial bentonite. The TGA and DSC experiments showed changes in the thermal stability of samples depending on their composition. The obtained data could provide a better understanding of the principles of preparing hybrid bentonite-containing composites that may provide an additional incentive to develop advanced technologies.

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Study on the anisotropy of mass transfer for oxygen in the ash layer of extremely low calorific oil shale semi-coke

Wang

et al. 2018

Applied Thermal Engineering

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Gaseous Emission and Thermal Analysis During Co-Combustion of Oil Shale Semi-Coke and Sawdust Using Tg-Ftir

Abstract: The kinetics and thermal characteristics of oil shale semi-coke and sawdust, including their blends, during co-combustion were investigated using a non-isothermal thermogravimetric analyzer (TGA). The ratio of semicoke to sawdust in the blends by mass was set as 10:

Cited by 12 publications

References 19 publications

Thermogravimetric analysis and process simulation of oxy-fuel combustion of blended fuels including oil shale, semicoke, and biomass

Thermogravimetric analysis and process simulation of oxy-fuel combustion of blended fuels including oil shale, semicoke, and biomass

Influence of the Synthesis Method on the Structural Characteristics of Novel Hybrid Adsorbents Based on Bentonite

Study on the anisotropy of mass transfer for oxygen in the ash layer of extremely low calorific oil shale semi-coke

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