Extraction of molybdenum-containing species from heavy oil residues using the filtration combustion method

Манелис, Г. Б.; Глазов, С. В.; Salgansky, E. A.; Лемперт, Д. Б.; Gudkova, I. Yu.; Домашнев, И. А.; Колесникова, А. М.; Кислов, В. М.; Kolesnikova, Yu. Yu.

doi:10.1016/j.ijheatmasstransfer.2015.09.056

Cited by 20 publications

(10 citation statements)

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“…This has been combined with other approaches, such as steam injection, to maximize oil production ahead of the combustion front [34]. Smouldering has also been proposed for recovering metals from heavy oil waste [40], for sintering of iron ore [41,42], for underground coal gasification [43], for landmine detection [44], for recycling shredded tires [45], and for reducing the volume of landfills [46].…”

Section: Introductionmentioning

confidence: 99%

Processes defining smouldering combustion: Integrated review and synthesis

Torero

Gerhard

Martins

et al. 2020

Progress in Energy and Combustion Science

107

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Smouldering combustion is an important and complex phenomenon that is central to a wide range of problems (hazards) and solutions (applications). A rich history of research in the context of fire safety has yet to be integrated with the more recent, rapidly growing body of work in engineered smouldering solutions. The variety of disciplines, materials involved, and perspectives on smouldering has resulted in a lack of unity in the expression of key concepts, terminology used, interpretation of results, and conclusions extracted. This review brings together theoretical, experimental, and modelling studies across both fire safety and applied smouldering research to produce a unified conceptual understanding of smouldering combustion. The review includes (i) a synthesis of nomenclature to generate a consistent set of terms for the underlying processes, (ii) an overview of smouldering emissions and emission treatment systems, (iii) a distillation of ignition and extinction research, including the role of heat losses and factors underpinning smouldering robustness, (iv) a review of the temporal and spatial distribution of heat and mass transfer processes as well as their solution using analytical and numerical methods, (v) a summary of smouldering chemical kinetics, and (vi) a summary of key gaps and opportunities for future research. Beyond merely review, a new conceptual model is provided that articulates similarities and critical differences between the two main smouldering systems: porous solid fuels and condensed fuels in inert porous media. A quantitative analysis of this conceptual model reveals that the evolution of a smouldering front, while a local process, is determined by a global energy balance that is cumulative in time and has to be integrated in space. As such, the fate of a smouldering reaction can be predicted before the effects of global heat exchange have affected the reaction. This approach is relevant to all forms of smouldering propagation (including fire safety), but it is particularly important when using smouldering as an engineered process that results in the positive use of the energy released by the smouldering reaction (applied smouldering). In applied smouldering, predicting the fate of a reaction ahead of time allows operators to modify the conditions of the process to maintain self-sustained smouldering propagation and thus fully harness the benefits of the reaction.

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Section: Introductionmentioning

confidence: 99%

Processes defining smouldering combustion: Integrated review and synthesis

Torero

Gerhard

Martins

et al. 2020

Progress in Energy and Combustion Science

107

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“…Thus, the characteristics of a combustible, inert material and metal were assumed to be equal to the characteristics of birch coal, chamotte and cadmium, respectively. It should be noted that the selected characteristics of the materials are close to those of coal gasification in the works of other researchers (Aldushin, 1997;Rozenberg et al, 2009;Manelis et al, 2016;Antonov et al, 2017). We suppose that the solid phase is premixed, its properties at each point in the reactor at the initial time are constant and equal.…”

Section: Resultsmentioning

confidence: 81%

“…The method of filtration combustion with superadiabatic heating is a way of efficiently burning of various combustible materials (Manelis et al, 2011;Toledo et al, 2018). The possibility of concentrating and separation of molybdenum compounds (Manelis et al, 2016), zinc (Rozenberg et al, 2009) in a laboratory reactor has been experimentally shown. The theory of filtration combustion of solid fuels is well developed (Aldushin, 1997).…”

Section: Introductionmentioning

confidence: 99%

The Model of the Extraction Process of Rare Metals Under Condition of Filtration Combustion Wave

2020

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To study the mass transfer of metal compounds, a model of filtration combustion of metal-containing combustible mixtures is developed. Using cadmium-containing mixture as an example, the main characteristics of filtration combustion are determined when the gas pressure at the reactor inlet is constant. It is shown that under the conditions of a filtration combustion wave, a metal can evaporate into the gas phase and be transferred with gas through the reactor. Due to the evaporation and condensation of cadmium, it is transported and accumulated before the combustion front. The possibility of controlling the mass transfer of metal compounds under the conditions of a filtration combustion wave with the aim of concentrating them is shown. It is revealed that a 4-fold increase in the pressure difference at the open boundaries of the reactor can lead to a decrease in the maximum metal concentration by about 1.5 times. An increase in the concentration of metals due to mass transfer will subsequently make it economically feasible to extract them by traditional methods.

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“…The presence of sulfur may change the equilibrium composition of the products. So in work [10], in the absence of sulfur, the main metal-containing products were various molybdenum oxides. The figures below show only metal-containing products.…”

Section: Resultsmentioning

confidence: 99%

“…The low content of rare and precious metals in the feedstock is one of the reasons for the difficulty of their extraction. The possibility to concentrate molybdenum in the filtration combustion wave, when its initial concentration in the solid phase is equal to 0.15% wt, was shown experimentally in [10]. In the filtration combustion with super-adiabatic heating mode, a high temperature is realized in the combustion front due to heat recovery from the products to the initial reagents.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamically Equilibrium Compositions of the Products Formed During the Filtration Combustion of the Metal-Containing Mixtures

Salgansky

Podlesniy

Цветков

et al. 2020

Eurasian Chem. Tech. J.

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Thermodynamic calculations for describing the compositions of the products formed in conditions of the filtration combustion of the metal-containing mixtures were carried out. The analysis of the equilibrium compositions of the products was carried out using the TERRA high-temperature thermochemical equilibrium calculation program. According to the results of calculations, the metals were divided into two groups. First one forms both the condensed and gaseous phases and in the second one ‒ metals that are only in the condensed phase. In case of the presence of metal compounds in the gas phase, as a rule, these are the following compounds: metals, oxides, hydroxides, hydrides, sulfides and metal sulfates. Metals of the second group cannot be subjected to mass transfer under conditions of the filtration combustion wave and will remain in solid combustion products (in ash).

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Extraction of molybdenum-containing species from heavy oil residues using the filtration combustion method

Cited by 20 publications

References 1 publication

Processes defining smouldering combustion: Integrated review and synthesis

Processes defining smouldering combustion: Integrated review and synthesis

The Model of the Extraction Process of Rare Metals Under Condition of Filtration Combustion Wave

Thermodynamically Equilibrium Compositions of the Products Formed During the Filtration Combustion of the Metal-Containing Mixtures

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