Enhanced pyrolysis and oxidation of asphaltenes adsorbed onto transition metal oxides nanoparticles towards advanced in-situ combustion EOR processes by nanotechnology

Hosseinpour, Negahdar; Mortazavi, Yadollah; Bahramian, Alireza; Khodatars, Leila; Khodadadi, Abbas Ali

doi:10.1016/j.apcata.2014.03.017

Cited by 85 publications

(87 citation statements)

References 44 publications

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“…Hence, metakaolin surface contribution generates a synergetic effect in the R-A steam gasification in comparison with the results observed for functionalized clay. The main decomposition peak for R-A mixture is observed at 773 K, which is attributed to aromatics rings decomposition [13]. However, in the presence of the synthesized metakaolin-supported catalysts, this temperature can be reduced significantly, probably related to the chemical content (Al 2 O 3 and SiO 2 ) and the pore size distribution that could determine the interaction degree of the adsorbed species and the adsorbate.…”

Section: Adsorption Isotherms Of Resins and Asphaltenesmentioning

confidence: 98%

“…Under inert atmosphere R-A is converted mainly to CO 2 , light hydrocarbons, and CH 4 with a less extent. Also, oxygen sources present on catalyst structure and R-A functional groups are probably used in CO 2 production during the thermal cracking by the reaction of free carbon radicals and the oxygen sources [13]. From Figure 9a,b it is observed that steam injection has hydrogen source contribute to a less condensation of light hydrocarbons by the cracking of LCH and saturation of free radicals [59], which means a higher yield in methane production under steam atmosphere.…”

Section: Analysis Of the Evolution Of The Gaseous Product During The mentioning

confidence: 99%

“…Different gasses could be detected during the cracking of heavy oil compounds, predominately CO 2 , H 2 , CO, CH 4 , and O 2 in the steam gasification process [101]. The characteristic intensity of the adsorption bands at 2149, 2349, 3016 and 2750 cm −1 were analyzed respectively for CO, CO 2 , CH 4 , and other light hydrocarbons, respectively [13]. All experiments were performed in duplicate to confirm reproducibility.…”

Section: Catalytic Steam Gasification Of Asphaltenes and Resinsmentioning

confidence: 99%

See 2 more Smart Citations

Metal Oxide Nanoparticles Supported on Macro-Mesoporous Aluminosilicates for Catalytic Steam Gasification of Heavy Oil Fractions for On-Site Upgrading

López

Giraldo

Salazar³

et al. 2017

Catalysts

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Abstract:Catalytic steam gasification of extra-heavy oil (EHO) fractions was studied using functionalized aluminosilicates, with NiO, MoO 3 , and/or CoO nanoparticles with the aim of evaluating the synergistic effect between active phase and the support in heavy oil on-site upgrading. Catalysts were characterized by chemical composition through X-ray Fluorescence, surface area, and pore size distribution through N 2 adsorption/desorption, catalyst acidity by temperature programmed desorption (TPD), and metal dispersion by pulse H 2 chemisorption. Batch adsorption experiments and catalytic steam gasification of adsorbed heavy fractions was carried out by thermogravimetric analysis and were performed with heavy oil model solutions of asphaltenes and resins (R-A) in toluene. Effective activation energy estimation was used to determine the catalytic effect of the catalyst in steam gasification of Colombian EHO. Additionally, R-A decomposition under inert atmosphere was conducted for the evaluation of oil components reactions with active phases and steam atmosphere. The presence of a bimetallic active phase Inc.reases the decomposition of the heavy compounds at low temperature by an increase in the aliphatic chains decomposition and the dissociation of heteroatoms bonds. Also, coke formation after steam gasification process is reduced by the application of the bimetallic catalyst yielding a conversion greater than 93%.

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Section: Adsorption Isotherms Of Resins and Asphaltenesmentioning

confidence: 98%

Section: Analysis Of the Evolution Of The Gaseous Product During The mentioning

confidence: 99%

Section: Catalytic Steam Gasification Of Asphaltenes and Resinsmentioning

confidence: 99%

See 1 more Smart Citation

Metal Oxide Nanoparticles Supported on Macro-Mesoporous Aluminosilicates for Catalytic Steam Gasification of Heavy Oil Fractions for On-Site Upgrading

López

Giraldo

Salazar³

et al. 2017

Catalysts

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“…However, most of these techniques do not exceed 20 %-25 % oil recovery or 50 % for the steam-assisted gravity drainage (SAGD) process (Butler 1998;Nasr et al 2003;Hashemi et al 2013). Nanoparticle technology has emerged as an alternative with a great potential to improve the previously mentioned techniques and increase oil recovery (Hashemi et al 2014a, b, c;Galarraga and Pereira-Almao 2010;Hashemi et al 2012;Franco et al 2013aFranco et al , b, 2014Hosseinpour et al 2014). …”

Section: Introductionmentioning

confidence: 99%

“…Because of their small sizes, high surface area/volume ratios, and tunable chemical characteristics, nanoparticles have exceptional adsorptive and catalytic properties and can be employed for in situ adsorption and post-adsorption catalytic cracking of heavy hydrocarbons, such as asphaltenes (Nassar et al 2011a(Nassar et al , b, c, d, e, 2012a(Nassar et al , b, 2013bNassar 2010;Franco et al 2013c;Hosseinpour et al 2014;Hashemi et al 2014c). It has been demonstrated that with advanced research, nanoparticles can be used to sustain the heavy oil industry via the development of environmentally sound processes with cost-effective approaches.…”

Section: Introductionmentioning

confidence: 99%

Kinetics and mechanisms of the catalytic thermal cracking of asphaltenes adsorbed on supported nanoparticles

et al. 2016

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The production of heavy and extra-heavy oil is challenging because of the rheological properties that crude oil presents due to its high asphaltene content. The upgrading and recovery processes of these unconventional oils are typically water and energy intensive, which makes such processes costly and environmentally unfriendly. Nanoparticle catalysts could be used to enhance the upgrading and recovery of heavy oil under both in situ and ex situ conditions. In this study, the effect of the Ni-Pd nanocatalysts supported on fumed silica nanoparticles on post-adsorption catalytic thermal cracking of n-C 7 asphaltenes was investigated using a thermogravimetric analyzer coupled with FTIR. The performance of catalytic thermal cracking of n-C 7 asphaltenes in the presence of NiO and PdO supported on fumed silica nanoparticles was better than on the fumed silica support alone. For a fixed amount of adsorbed n-C 7 asphaltenes (0.2 mg/m 2 ), bimetallic nanoparticles showed better catalytic behavior than monometallic nanoparticles, confirming their synergistic effects. The corrected OzawaFlynn-Wall equation (OFW) was used to estimate the effective activation energies of the catalytic process. The mechanism function, kinetic parameters, and transition state thermodynamic functions for the thermal cracking process of n-C 7 asphaltenes in the presence and absence of nanoparticles are investigated.

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Nanoparticles for Heavy Oil In Situ Upgrading

Suwaid

Ситнов

Al‐Muntaser

et al. 2023

Catalytic In‐Situ Upgrading of Heavy and Extra‐Heavy Crude Oils

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Enhanced pyrolysis and oxidation of asphaltenes adsorbed onto transition metal oxides nanoparticles towards advanced in-situ combustion EOR processes by nanotechnology

Cited by 85 publications

References 44 publications

Metal Oxide Nanoparticles Supported on Macro-Mesoporous Aluminosilicates for Catalytic Steam Gasification of Heavy Oil Fractions for On-Site Upgrading

Metal Oxide Nanoparticles Supported on Macro-Mesoporous Aluminosilicates for Catalytic Steam Gasification of Heavy Oil Fractions for On-Site Upgrading

Kinetics and mechanisms of the catalytic thermal cracking of asphaltenes adsorbed on supported nanoparticles

Nanoparticles for Heavy Oil In Situ Upgrading

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