High quality oil recovery from oil-based drill cuttings via catalytic upgrading in presence of near-/supercritical water and different industrial wastes

Zhong, Cheng; Tong, Kun; He, Chunlan; Xue, Ming; Lyu, Chong; Chen, Hongzhen; Qiao, Chunming; Xu, Yuan

doi:10.1016/j.jclepro.2021.129061

Cited by 20 publications

(5 citation statements)

References 52 publications

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“…There is a 316 stainless steel capillary with an inner diameter of 1.5 mm that is welded on the top cover and inserted into the middle part of the reactor to act as a protective pipe, by which a K-type thermocouple can be inserted to detect the reaction temperature in real time. More details about this reactor can be found in our previous studies. , …”

Section: Methodsmentioning

confidence: 99%

“…More details about this reactor can be found in our previous studies. 33,40 First, heavy oil and catalyst are blended evenly in a ratio of 10:1. For each run, 1.1 g of the mixture (equivalent to 1 g of oil (M oil , g) + 0.1 g of catalyst) and 4 mL of D 2 O are loaded in the reactor.…”

Section: Experimental Apparatus Andmentioning

confidence: 99%

“…In our previous study, electroplating sludge was used as a costless catalyst for supercritical water oxidation and upgrading of oily sludge. 39,40 Results suggested that the electroplating sludge shows good catalysis activity, and the active compound was found to be the metal hydroxide (M−OH). The M−OH is not stable under hydrothermal conditions and will also decompose.…”

Section: Introductionmentioning

confidence: 99%

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Metal Hydroxide-Catalyzed Heavy Oil Upgrading in Supercritical Water: Deuterium Tracing Study

Chen,

et al. 2024

Energy Fuels

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Conversion of heavy oil is urgent as most of the explored fossil oil reserves and renewable raw biodiesel can be categorized as heavy oil. Supercritical water upgrading (SCWU) is a green and promising technology for heavy oil conversion, but the hydrogen-donating capacity of pure water is inadequate. This study adopts transition-metal hydroxide (M−OH) to enhance the in situ hydrogen-donating capacity of water for the first time. Both M− OH and the corresponding metal oxide nanoparticle (MO n ) of one post-transition metal (Al) and five transition metals (Cr, Cu, Fe, Ni, Zn) are tested. The SCWU conditions are selected as 425 °C, 60 min, water-to-oil ratio of 4:1, catalyst-to-oil ratio of 1:10, and water density of 308 kg m −3 . Deuterium oxide (D 2 O) instead of H 2 O is used as the reaction medium for a deuterium tracing study. Results indicate that the different metal-based MO n nanoparticles display various effects on heavy hydrocarbon cracking, gasification, coke suppression, and D addition reactions. The overall performance is found to be on the order of NiO > Cr 2 O 3 > Fe 2 O 3 > CuO > Al 2 O 3 > ZnO. Compared to MO n , M−OH can generally improve the oil yield and H/C ratio and reduce the coke yield simultaneously. The mechanism analysis suggests that the M−OH decomposition behavior under hydrothermal conditions is the primary cause by which MO n and lattice H 2 O are generated in the oil-rich phase. The lattice H 2 O can not only take part in SCWU reactions but also suppress coke formation. In conclusion, M−OH is a promising catalyst as it combines the good dispersibility and catalytic activity of MO n nanoparticles and the low cost of water-soluble inorganic metal salts (M-IAc) but does not result in any corrosive species, such as inorganic acid from M-IAc.

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Section: Methodsmentioning

confidence: 99%

Section: Experimental Apparatus Andmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Metal Hydroxide-Catalyzed Heavy Oil Upgrading in Supercritical Water: Deuterium Tracing Study

Chen,

et al. 2024

Energy Fuels

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“…More recently, the focus has been placed on the production of syngas from oily sludge using subcritical and supercritical water [139][140][141][142]. To facilitate fuel recovery, some researchers also examined the effects of catalysts on the oil recovery and gasification processes [143,144].…”

Section: Hydrothermal Treatmentmentioning

confidence: 99%

Trend in Research on Characterization, Environmental Impacts and Treatment of Oily Sludge: A Systematic Review

Niu¹,

Sun²,

Lin

2022

Molecules

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Oily sludge is a hazardous material generated from the petroleum industry that has attracted increasing research interest. Although several review articles have dealt with specific subtopics focusing on the treatment of oily sludge based on selected references, no attempt has been made to demonstrate the research trend of oily sludge comprehensively and quantitatively. This study conducted a systematic review to analyze and evaluate all oily sludge-related journal articles retrieved from the Web of Science database. The results show that an increase in oily sludge-related research did not take place until recent years and the distribution of the researchers is geographically out of balance. Most oily sludge-related articles focused on treatment for harmfulness reduction or valorization with limited coverage of formation, characterization, and environmental impact assessment of oily sludge. Pyrolytic treatment has attracted increasing research attention in recent years. So far, the research findings have been largely based on laboratory-scale experiments with insufficient consideration of the cost-effectiveness of the proposed treatment methods. Although many methods have been proposed, few alone could satisfactorily achieve cost-effective treatment goals. To enable sustainable management of oily sludge on a global scale, efforts need to be made to fund more research projects, especially in the major oil-producing countries. Pilot-scale experiments using readily available and affordable materials should be encouraged for practical purposes. This will allow a sensible cost-benefit analysis of a proposed method/procedure for oily sludge treatment. To improve the treatment performance, combined methods are more desirable. To inform the smart selection of methods for the treatment of different oily sludge types, it is suggested to develop universally accepted evaluation systems for characterization and environmental risk of oily sludge.

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“…Date stones might be regarded as one of the greatest candidates among agricultural wastes for the synthesis of activated carbon that can be used as a support of the catalyst as they are inexpensive and plentiful, especially in Mediterranean nations. The use of such a catalyst is determined by the possibility of application as a kinetic reaction [15,16].…”

Section: Introductionmentioning

confidence: 99%

On Kinetics of Upgrading Reactions by Supercritical Water Technology of Highly Sour Qayara Crude Oil over an Activated Carbon-Based Catalyst

Gheni

Mohammed

Hamad³

et al. 2023

Journal of Petroleum Research and Studies

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Currently clean energy and zero emission fuel is a priority as there is a growing level of pollutants in air, sea and soil. Also, the conventional Iraqi crude oil is going to deplete according to the statistical analysis. Thus, methods of upgrading should attract attention in Iraqi fuel sector. The method of supercritical fluids (SCF) is one of the advanced approaches to upgrade the unconventional crude oil and removal of high levels of sulfur compounds. The present work aims at developing a kinetic model for upgrading reactions by supercritical water technology of a sour Iraqi crude oil. This aim was achieved via conducting sets of experiments in a hydrothermal autoclave reactor over a cobalt/activated carbon catalyst. The AC was used as a support for Co as an active metal. A set of upgrading kinetics experiments were applied at different temperatures (290-350 °C) and reaction times (0-45 min). Upon evaluation of the prepared catalysts for kinetics of upgrading by supercritical water technology, it was found that the process flows pseudo first order mechanism. Also, the activation energy of the chemical reaction was found to be 204.1 kJ/mol which is much less compared to previous studies

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High quality oil recovery from oil-based drill cuttings via catalytic upgrading in presence of near-/supercritical water and different industrial wastes

Cited by 20 publications

References 52 publications

Metal Hydroxide-Catalyzed Heavy Oil Upgrading in Supercritical Water: Deuterium Tracing Study

Metal Hydroxide-Catalyzed Heavy Oil Upgrading in Supercritical Water: Deuterium Tracing Study

Trend in Research on Characterization, Environmental Impacts and Treatment of Oily Sludge: A Systematic Review

On Kinetics of Upgrading Reactions by Supercritical Water Technology of Highly Sour Qayara Crude Oil over an Activated Carbon-Based Catalyst

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