Distinctive oil shale pyrolysis behavior in indirectly heated fixed bed with internals

Lin, Lanxin; Lai, Dengguo; Shi, Zhen; Han, Zhennan; Xu, Guangwen

doi:10.1039/c7ra02347b

Cited by 8 publications

(3 citation statements)

References 32 publications

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“…Advanced geological exploration techniques are essential for identifying and locating oil shale deposits [1,29]. Traditional oil shale exploration techniques involve drilling wells and analyzing core samples to determine the organic content and quality of the rock.…”

Section: Exploration Methodsmentioning

confidence: 99%

Advancements and Environmental Implications in Oil Shale Exploration and Processing

Jia

2023

Applied Sciences

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This comprehensive review presents a holistic examination of oil shale as a significant energy resource, focusing on its global reserves, extraction technologies, chemical characteristics, economic considerations, and environmental implications. Oil shale, boasting reserves equivalent to approximately 6 trillion barrels of shale oil worldwide, holds substantial potential to augment the global energy supply. Key extraction methods analyzed include surface mining, modified in situ, and true in situ conversion processes, each exhibiting distinct operational parameters and efficiencies. The review further delves into the chemical aspects of oil shale retorting and pyrolysis, highlighting the critical role of variables such as retorting temperature, residence time, particle size, and heating rate in determining the yield and composition of shale oil and byproducts. Economic analyses reveal that capital and operating costs, which vary according to the specific extraction and processing technologies implemented, are crucial in appraising the economic feasibility of oil shale projects. Lastly, the review acknowledges the potential environmental hazards linked with oil shale development, such as groundwater contamination and harmful emissions. It emphasizes the importance of rigorous monitoring programs, environmental impact assessments, sustainable technologies, and innovative strategies like co-combustion and comprehensive utilization systems in mitigating such impacts. The review underlines the need for a balanced approach that harmonizes technological advancement, economic viability, and environmental sustainability in oil shale exploitation.

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Section: Exploration Methodsmentioning

confidence: 99%

Advancements and Environmental Implications in Oil Shale Exploration and Processing

Jia

2023

Applied Sciences

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“…[1][2][3] Because it is similar to natural petroleum, shale oil is considered a promising alternative energy and supplementary resource. 4,5 China has the second largest oil shale reserves in the world, which is approximately 47.6 billion tons (converted into shale oil). 6,7 Thus, realizing high-efficient exploitation of oil shale is conducive to meeting China's energy demand and alleviating its dependence on imports.…”

Section: Introductionmentioning

confidence: 99%

Comparative study on the pyrolysis behavior and pyrolysate characteristics of Fushun oil shale during anhydrous pyrolysis and sub/supercritical water pyrolysis

Wang

Kang

et al. 2022

RSC Adv.

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“…In the last few decades, the consumption of fossil fuels has increased drastically, [ 1 ] and the resources of conventional crude oil are declining continually, which has led the petroleum industry to enter into a new significant period. The utilization of non‐conventional oil, either heavy or extra heavy residual oil is more worthwhile.…”

Section: Introductionmentioning

confidence: 99%

Direct conversion of poor‐quality residual oil to light gases in electricity‐driven thermal plasma reactor

Ali

Cheng

et al. 2022

Can J Chem Eng

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Nowadays, the utilization of non‐conventional oil resources has become an increasingly attractive solution for producing valuable chemicals and materials due to the depletion of conventional oil resources. Plasma technology, powered by renewable energy sources, provides a potential way to convert low‐grade residual oil into lighter hydrocarbons in an environmentally friendly fashion. This study has developed a laboratory‐scale plasma pyrolysis system to investigate the impacts of residual oil characteristics and operating variables such as residual oil‐specific enthalpy, arc gas flow rate, arc gas composition, quenching, and plasma configuration. The results show that the higher specific enthalpy of the residual oil leads to higher yields of C1, C2, and H2, particularly C2H2. An increment in the arc gas flow rate improves the pyrolysis impact; however, an excessively high arc gas flow rate lowers the thermal plasma jet's temperature, causing a limited pyrolysis effect. In the composition of arc gas, the increasing concentration of H2 can enhance the specific enthalpy and improve carbon conversion from residual oil to gas products, both of which result in a higher yield of light gases. Furthermore, ethane gas has been used as a quenching medium after plasma pyrolysis. The results reveal that ethane can be cracked into ethylene and other products by taking full use of the heat energy of the gas. Meanwhile, the sharp decrease in the gas temperature inhibits the further pyrolysis of the main valuable products.

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Distinctive oil shale pyrolysis behavior in indirectly heated fixed bed with internals

Abstract: Variation of chemical species from pyrolysis with temperature, with light oil/diesel and VGO dominant at temperatures below 450 °C and above 300 °C.

Cited by 8 publications

References 32 publications

Advancements and Environmental Implications in Oil Shale Exploration and Processing

Advancements and Environmental Implications in Oil Shale Exploration and Processing

Comparative study on the pyrolysis behavior and pyrolysate characteristics of Fushun oil shale during anhydrous pyrolysis and sub/supercritical water pyrolysis

Direct conversion of poor‐quality residual oil to light gases in electricity‐driven thermal plasma reactor

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