Cold condensing scrubbing method for fine particle reduction from saturated flue gas

Feng, Yupeng; Li, Yuzhong; Cui, Lin; Li-fan, Yan; Zhao, Cheng; Dong, Yong

doi:10.1016/j.energy.2019.01.065

Cited by 35 publications

(24 citation statements)

References 28 publications

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“…(3) In grinding, the starting material is subjected to extremely high energy, and ground with steel balls to obtain powdered nanoparticles. These nanoparticles have a size that varies from 3 to 25 nm [160]; (4) scrubbing in which thin silicon strips rub by immersion in chemicals (e.g., hydrofluoric acid) to obtain silicone particles on the strip surface. Then, strips are placed in a solution (e.g., isopropanol) at an ultrasound device to form nanosized droplets [159,161].…”

Section: Classification Based On the Nature Of The Deriving Forcesmentioning

confidence: 99%

Review on Natural, Incidental, Bioinspired, and Engineered Nanomaterials: History, Definitions, Classifications, Synthesis, Properties, Market, Toxicities, Risks, and Regulations

et al. 2022

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Nanomaterials are becoming important materials in several fields and industries thanks to their very reduced size and shape-related features. Scientists think that nanoparticles and nanostructured materials originated during the Big Bang process from meteorites leading to the formation of the universe and Earth. Since 1990, the term nanotechnology became very popular due to advances in imaging technologies that paved the way to specific industrial applications. Currently, nanoparticles and nanostructured materials are synthesized on a large scale and are indispensable for many industries. This fact fosters and supports research in biochemistry, biophysics, and biochemical engineering applications. Recently, nanotechnology has been combined with other sciences to fabricate new forms of nanomaterials that could be used, for instance, for diagnostic tools, drug delivery systems, energy generation/storage, environmental remediation as well as agriculture and food processing. In contrast with traditional materials, specific features can be integrated into nanoparticles, nanostructures, and nanosystems by simply modifying their scale, shape, and composition. This article first summarizes the history of nanomaterials and nanotechnology. Followed by the progress that led to improved synthesis processes to produce different nanoparticles and nanostructures characterized by specific features. The content finally presents various origins and sources of nanomaterials, synthesis strategies, their toxicity, risks, regulations, and self-aggregation.

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Section: Classification Based On the Nature Of The Deriving Forcesmentioning

confidence: 99%

Review on Natural, Incidental, Bioinspired, and Engineered Nanomaterials: History, Definitions, Classifications, Synthesis, Properties, Market, Toxicities, Risks, and Regulations

et al. 2022

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“…The inward Stefan flow continuously carries particles to the surface of the droplet at this moment. Feng et al 16 plotted Figure 3, which visualizes the opposite effects of Stefan flow on the particle collection on evaporating and condensing surfaces.…”

Section: Overview Of Experimental Work On Particle Collection Involvi...mentioning

confidence: 99%

“…Feng et al 16 conducted a particle collection experiment in which cold water was sprayed into a saturated gas and achieved a collection efficiency of up to 99.2%. The comparative experiment revealed that the other collection mechanisms, including thermophoretic force, slightly contributed to the particle collection, and 80%−90% of the collection efficiency of particles came from the contribution of the inward Stefan flow caused by water vapor condensation.…”

Section: Overview Of Experimental Work On Particle Collection Involvi...mentioning

confidence: 99%

“…The collection efficiency of the submicrometer and ultrafine particles is far lower than the experimental results of Feng et al 16 under basically the same conditions. The overall particle collection efficiency is more than 90% by Feng et al 16 Hence, a large gap exists between the theoretical calculation and the experimental results. The reasons for the gap will be discussed below.…”

Section: Stefan Flow Ignored In Diffusiophoresis Efficiencymentioning

confidence: 99%

“…Stefan flow is closely related to the phase change process as the bulk flow and plays a key role in the particle collection at the phase interface. Studies found that Stefan flow can control the movement of particles near the phase interface. , According to the literature on particle collection, previous studies show that researchers have an insufficient understanding of the significance of Stefan flow, even misunderstandings are observed. Therefore, Stefan flow theory in the field of particle collection is comprehensively discussed and analyzed in this study.…”

Section: Introductionmentioning

confidence: 99%

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Mechanism of Stefan Flow in the Collection of Particles on Evaporating/Condensing Surfaces: A Review

Gan

Zhang

Nie

et al. 2021

Ind. Eng. Chem. Res.

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Evaporation and condensation are important in the field of heat and mass transfer. Particle collection by an evaporating or condensing surface is an interesting phenomenon. The Stefan flow generated on the phase change surface has a significant effect on the movement of particles. The transport mechanism of Stefan flow in previous studies lacks a systematic review. This study introduces the Stefan flow mechanism in particle collection, and the different theoretical models of particle collection are systematically summarized. The differences between the theoretical calculation and the experimental results of the effect of the phoretic forces (thermophoresis and Stefan flow) in particle collection on evaporating/condensing surfaces are pointed out. The variations are discussed from the viewpoint of Stefan flow. This study also emphasizes that Stefan flow on the condensing surface may become an important mechanism to further improve the particle collection efficiency.

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Combustion Equipment Used in Food Preparation Around the World: What Is Its Influence on Air Pollution and How to Mitigate These Harmful Effects?

da Silva,

Ucella Filho,

da Silva

et al. 2023

Green Energy and Technology

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Cold condensing scrubbing method for fine particle reduction from saturated flue gas

Cited by 35 publications

References 28 publications

Review on Natural, Incidental, Bioinspired, and Engineered Nanomaterials: History, Definitions, Classifications, Synthesis, Properties, Market, Toxicities, Risks, and Regulations

Review on Natural, Incidental, Bioinspired, and Engineered Nanomaterials: History, Definitions, Classifications, Synthesis, Properties, Market, Toxicities, Risks, and Regulations

Mechanism of Stefan Flow in the Collection of Particles on Evaporating/Condensing Surfaces: A Review

Combustion Equipment Used in Food Preparation Around the World: What Is Its Influence on Air Pollution and How to Mitigate These Harmful Effects?

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