Evolution of porosity in kerogen type I during hydrous and anhydrous pyrolysis: Experimental study, mechanistic understanding, and model development

Liu, Bo; Mohammadi, Mohammad-Reza; Ma, Zhongliang; Bai, Longhui; Wang, Liu; Xu, Ying; Ostadhassan, Mehdi; Hemmati‐Sarapardeh, Abdolhossein

doi:10.1016/j.fuel.2022.127149

Cited by 64 publications

(27 citation statements)

References 96 publications

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“…Table S3 lists the corresponding pore parameters and specific surface area. The N 2 adsorption–desorption isotherms of the samples showed the classic type IV with H 4 hysteresis (Figure a) . The desorption isotherm hysteresis loops revealed the presence of mesopores in the as-prepared HPN.…”

Section: Resultsmentioning

confidence: 92%

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Hydroxymethyl-Functionalized Polymer Nanospheres with a Hollow Mesopore Structure for Efficient Acteoside Adsorption

Zhang,

Sun,

Che

et al. 2023

ACS Appl. Nano Mater.

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In this study, hydroxymethyl (−CH2OH)-functionalized hollow polymer nanospheres (HPN) were prepared by a hypercross-linking self-assembly strategy for acteoside (ACT) adsorption. The prepared HPN possessed a large pore volume, robust hollow structure, and centralized distribution mesopores, achieving excellent adsorption capacity for ACT. The highest adsorption capacity was 357.99 mg/g observed for ACT. The reason can be attributed to the following three aspects: first, HPN-2 has a hollow structure with the largest pore volume, and the large pore volume is a decisive factor in improving adsorption capacity. The large pore volume provided enough space to accommodate more ACT molecules. Second, the −CH2OH functional groups inside and outside of HPN-2 acted as high-affinity binding sites for ACT molecules, making ACT more easily adsorbed on HPN-2. Finally, the larger mesopore on HPN-2 provides fast diffusion channels for the adsorption of ACT. Therefore, developing hydroxymethyl-functionalized hypercross-linked adsorbents with hollow mesopore structures will provide a facile and effective strategy for separating bioactive components from natural products.

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Section: Resultsmentioning

confidence: 92%

“…The N 2 adsorption−desorption isotherms of the samples showed the classic type IV with H 4 hysteresis (Figure 3a). 32 The desorption isotherm hysteresis loops revealed the presence of mesopores in the as-prepared HPN. Figure 3b exhibits the pore size distribution results.…”

Section: Characterization Of Hpnmentioning

confidence: 93%

Hydroxymethyl-Functionalized Polymer Nanospheres with a Hollow Mesopore Structure for Efficient Acteoside Adsorption

Zhang,

Sun,

Che

et al. 2023

ACS Appl. Nano Mater.

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“…52 The obtained density (1.25 g/cm 3 ) is typical of values expected for immature kerogen, 17,52 and the models show almost no porosity after relaxation, which is consistent with the very low amounts of micropores (<0.006 cm 3 /g) reported for immature type I kerogen. 53 The ∼5 GPa modulus of these models thus corresponds to the intrinsic stiffness of the immature kerogen backbone. Models in the early (D−F) and late (G−I) metagenesis states retain most of the porosity that existed prior to fluid expulsion, indicating that the mature kerogen backbone is actually stiffer than that of immature kerogen.…”

Section: ■ Discussionmentioning

confidence: 99%

Replica-Exchange Molecular Dynamics Simulation of the Natural Evolution of a Model Type I Kerogen

Leyssale,

Valdenaire,

Potier

et al. 2023

Energy Fuels

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Kerogen evolution in organic-rich sedimentary rocks, by its time scale and complexity, is a particularly challenging process for atomistic modeling and simulations. Yet, such modeling approaches, provided that appropriate simulation techniques are used and reasonable simplifications are made, can unravel the most significant physicochemical mechanisms underlying oil and gas generation and the evolution of the kerogen structure and properties. Here, we combine reactive molecular dynamics and the replica-exchange molecular dynamics simulation technique to simulate a simple model of type I organic matter, described as a mixture of five unsaturated fatty acids as a simplified model of algae, along its maturation pathway, from diagenesis to late metagenesis. We describe fluid production, from the oil to gas windows, and kerogen evolution in terms of the structure and properties. We show that the formation of permanent microporosity within the kerogen matrix is intimately correlated to both the fluid production and the rigidification of the kerogen skeleton occurring in the gas window, i. e., at low O/C and H/C atomic ratios. We show that because of their pristine molecular structures with a more or less long tail made of alternating single and double carbon–carbon bonds, fatty acid molecules do decompose into alkanes of various lengths, up to octane in our simulations, by contrast to lignin and cellulose that only produces short alkanes, mostly methane.

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“…According to the United States Energy Information Administration’s statistical prediction of tight oil resources in 2013, the world’s recoverable reserves of tight oil technology are 48.3 billion tons, accounting for 11% of the world’s conventional petroleum technology recoverable reserves (421.68 billion tons). − Among them, Russia has the largest amount of tight oil resources (Table ). Tight oil is the main source of future global oil production growth .…”

Section: Global Tight Oil Resources and Distributionmentioning

confidence: 99%

Review of the Development Status and Technology of Tight Oil: Advances and Outlook

Liu

2023

Energy Fuels

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Tight sandstone and shale oil reservoirs are one of the most promising and realistic important oil exploration fields in the 21st century. The research on the development technology of tight sandstone and shale oil reservoirs has important theoretical and practical significance for the exploration and development of tight sandstone and shale oil reservoirs in China. First, this article introduces the distribution of tight oil in the world and calculates the recoverable reserves of tight oil technology worldwide. The review also introduces the current status of tight oil exploration and development in major countries such as the United States, Canada, and China, including the distribution of tight oil resources, the main parameters of tight oil basins, and tight oil production. Second, it analyzes the current development status of tight oil in the United States, summarizes the four main factors that led to the success of tight oil exploration and development in the United States, and points out the impact of the successful development of tight oil in the United States on the global oil supply and demand relationship. Third, in the review of the main development technologies for tight oil, the current status, application, and progress of the main development technologies for tight oil are summarized and analyzed, including horizontal well drilling, fracturing and transformation technology, microscale seismic diagnosis, gas injection, and other technologies. Finally, the development examples of tight oil such as the Bakun shale in the United States are analyzed, and the application effects and experiences of horizontal well volume fracturing in regions such as the United States are summarized.

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Evolution of porosity in kerogen type I during hydrous and anhydrous pyrolysis: Experimental study, mechanistic understanding, and model development

Cited by 64 publications

References 96 publications

Hydroxymethyl-Functionalized Polymer Nanospheres with a Hollow Mesopore Structure for Efficient Acteoside Adsorption

Hydroxymethyl-Functionalized Polymer Nanospheres with a Hollow Mesopore Structure for Efficient Acteoside Adsorption

Replica-Exchange Molecular Dynamics Simulation of the Natural Evolution of a Model Type I Kerogen

Review of the Development Status and Technology of Tight Oil: Advances and Outlook

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