Interaction between saturates, aromatics and resins during pyrolysis and oxidation of heavy oil

Liu, Dong; Song, Qiang; Tang, Junshi; Zheng, Rencheng; Yao, Qiang

doi:10.1016/j.petrol.2016.12.013

Cited by 58 publications

(31 citation statements)

References 17 publications

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“…suggesting that oxidation of carbon cluster during pyrolysis would be possible 17) . Nevertheless, these results would confirm that typical sample of kerosene could represent slop oil with only small deviation in carbon content.…”

Section: Methodsmentioning

confidence: 99%

Effect of Preloaded Ferrocene in Co-pyrolysis of Kerosene/Ferrocene on CNT Synthesis

Thonganantakul¹,

Chaiwat²,

Srinives³

et al. 2018

J. Jpn. Inst. Energy

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Based on elemental analyses, slop oil which is typical petroleum waste could be represented by kerosene according to the major content of hydrocarbons containing 8-15 of carbon atoms. It was found that co-pyrolysis of mixture of kerosene and ferrocene with a certain amount of ferrocene preloaded into a quartz tube reactor could result in formation of carbon nanotubes with uniform morphology and substantial yield. Based on thermogravimetric and SEM analyses, it was found that typical sample of CNTs synthesized with a designated weight ratio of ferrocene mixed with kerosene and preloaded ferrocene of 1:1 exhibited better thermal stability and more uniform morphology with an average diameter of less than 100 nm.

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Section: Methodsmentioning

confidence: 99%

Effect of Preloaded Ferrocene in Co-pyrolysis of Kerosene/Ferrocene on CNT Synthesis

Thonganantakul¹,

Chaiwat²,

Srinives³

et al. 2018

J. Jpn. Inst. Energy

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“…The main cause of the problems presented by heavy crude oils and bitumen is the high content of heavy fractions such as asphaltenes and resins in their molecular structure. Crude oil components are generally categorized as saturates, aromatic, resins, and asphaltenes (SARA) [59,60]. The saturated compounds are the nonpolar fraction of the crude oil, and it comprises linear, branched, and cyclic saturated hydrocarbons [61].…”

Section: Physical-chemical Properties Of Heavy (Ho) Extra-heavy Crudmentioning

confidence: 99%

“…The saturated compounds are the nonpolar fraction of the crude oil, and it comprises linear, branched, and cyclic saturated hydrocarbons [61]. Aromatics are the nonpolar fraction that contains aromatic rings in its molecular structure [60]. On the other hand, asphaltenes are the polar component of the crude oil and together with the resins compose the heaviest fraction, leading to high production and refinery costs [62,63].…”

Section: Physical-chemical Properties Of Heavy (Ho) Extra-heavy Crudmentioning

confidence: 99%

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Nanotechnology Applied to Thermal Enhanced Oil Recovery Processes: A Review

et al. 2019

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The increasing demand for fossil fuels and the depleting of light crude oil in the next years generates the need to exploit heavy and unconventional crude oils. To face this challenge, the oil and gas industry has chosen the implementation of new technologies capable of improving the efficiency in the enhanced recovery oil (EOR) processes. In this context, the incorporation of nanotechnology through the development of nanoparticles and nanofluids to increase the productivity of heavy and extra-heavy crude oils has taken significant importance, mainly through thermal enhanced oil recovery (TEOR) processes. The main objective of this paper is to provide an overview of nanotechnology applied to oil recovery technologies with a focus on thermal methods, elaborating on the upgrading of the heavy and extra-heavy crude oils using nanomaterials from laboratory studies to field trial proposals. In detail, the introduction section contains general information about EOR processes, their weaknesses, and strengths, as well as an overview that promotes the application of nanotechnology. Besides, this review addresses the physicochemical properties of heavy and extra-heavy crude oils in Section 2. The interaction of nanoparticles with heavy fractions such as asphaltenes and resins, as well as the variables that can influence the adsorptive phenomenon are presented in detail in Section 3. This section also includes the effects of nanoparticles on the other relevant mechanisms in TEOR methods, such as viscosity changes, wettability alteration, and interfacial tension reduction. The catalytic effect influenced by the nanoparticles in the different thermal recovery processes is described in Sections 4, 5, 6, and 7. Finally, Sections 8 and 9 involve the description of an implementation plan of nanotechnology for the steam injection process, environmental impacts, and recent trends. Additionally, the review proposes critical stages in order to obtain a successful application of nanoparticles in thermal oil recovery processes.

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“…SARA fractions were separated from the FC heavy oil based on the industry standard of China Petroleum NB/SH/T 0509-2010. 38 First, the asphaltenes in the crude oil were filtered and separated using the characteristics of asphaltenes that were not soluble in n-heptane. Then, the solutes (saturates, aromatics, and resins) from which the asphaltenes were removed were passed through an alumina chromatography column, and the soluble components were separated into saturated, aromatic, and resin fractions using alumina liquid chromatography.…”

Section: Methodsmentioning

confidence: 99%

Exothermal Property and Kinetics Analysis of Oxidized Coke and Pyrolyzed Coke from Fengcheng Extra-Heavy Oil

Wang

et al. 2021

Ind. Eng. Chem. Res.

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The exothermic combustion characteristics of coke play a direct and essential role in artificial ignition and the stability of the combustion front during the heavy oil in situ combustion (ISC) process. However, there is little research on the exothermal properties of pure oxidized coke and pyrolyzed coke. Oxidized coke and pyrolyzed coke formed by Fengcheng (FC) extra-heavy oil in an air or nitrogen atmosphere is studied in this work to obtain the exothermal behavior of different coke utilizing TG and DSC. The kinetics of both cokes are analyzed by the Friedman and Ozawa–Flynn–Wall methods. The morphological structures and main elemental distribution of each coke are identified by SEM and EDS. Results show that oxidized coke can release more heat than pyrolyzed coke. The whole enthalpy values of oxidized coke are 25.804 kJ/g (300 °C) and 28.717 kJ/g (350 °C), which are greater than those of pyrolyzed coke (18.325 kJ/g and 25.617 kJ/g). The activation energy curves of 300 °C coke fluctuate dramatically with the conversion rates, but 350 °C coke only changes slightly. The 350 °C pyrolyzed coke has much more combustion reactivity followed by the 350 °C oxidized coke. Compared with other coke, the 350 °C pyrolyzed coke has a more obvious porous structure with a regular arrangement and has the highest relative percentage of C, which is inconsistent with its higher reactivity. Combined with the research results, we show that preheating FC heavy oil fields to 350 °C with air injection is an effective method to ensure the successful application of ISC technology and to improve oil reservoir recovery.

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Interaction between saturates, aromatics and resins during pyrolysis and oxidation of heavy oil

Cited by 58 publications

References 17 publications

Effect of Preloaded Ferrocene in Co-pyrolysis of Kerosene/Ferrocene on CNT Synthesis

Effect of Preloaded Ferrocene in Co-pyrolysis of Kerosene/Ferrocene on CNT Synthesis

Nanotechnology Applied to Thermal Enhanced Oil Recovery Processes: A Review

Exothermal Property and Kinetics Analysis of Oxidized Coke and Pyrolyzed Coke from Fengcheng Extra-Heavy Oil

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