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Processes
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Modelling of Fluidized Adsorption Beds
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Modelling of Fluidized Adsorption Beds

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Chemical Processes and Systems".

Deadline for manuscript submissions: closed (20 November 2023) | Viewed by 3191

Special Issue Editor

Dr. Anna Zylka

E-Mail Website
Guest Editor
Division of Advanced Computational Methods, Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, 42-200 Czestochowa, Poland
Interests: chemical looping combustion; fluidization; heat transfer; waste heat recovery; renewable energy; environment protection
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Fluidization processes are constantly researched and developed. In recent years, many scientists have focused their attention on fluidized adsorption beds. These processes are, undoubtedly, a great opportunity for the development of many areas of technology.

This Special Issue on the “Modelling of Fluidized Adsorption Beds” seeks high-quality works focusing on the latest novel technological advances for fluidized adsorption beds. Topics include, but are not limited to:

  • Materials suitable for fluidization and adsorption processes (e.g., silica gel);
  • Specific conditions of the process with the adsorption fluidized bed (e.g., different temperatures, low pressure, etc.);
  • Modeling of fluidized bed adsorption processes with the use of various innovative tools, e.g., artificial intelligence.

Dr. Anna Zylka
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Processes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • fluidized bed
  • adsorption
  • modelling
  • porous materials

Published Papers (2 papers)

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Research

12 pages, 7333 KiB  
Article
Influence of the Adsorption Bed Composition on the Low-Pressure Fluidization
by Anna Kulakowska, Anna Zylka, Jaroslaw Krzywanski, Dorian Skrobek, Karolina Grabowska, Marcin Sosnowski and Wojciech Nowak
Processes 2023, 11(7), 1912; https://doi.org/10.3390/pr11071912 - 26 Jun 2023
Cited by 1 | Viewed by 829
Abstract
The paper presents an innovative concept of the fluidization of an adsorption bed carried out under low-pressure conditions. Additionally, different bed mixes were used to test the effects of the bed composition on fluidization. Fluidization was caused by the pressure difference and the [...] Read more.
The paper presents an innovative concept of the fluidization of an adsorption bed carried out under low-pressure conditions. Additionally, different bed mixes were used to test the effects of the bed composition on fluidization. Fluidization was caused by the pressure difference and the velocity of the flowing water vapor. These features make the research presented in this article significantly different from other studies known in the literature and constitute the main novelty of the paper. Silica gel with a particle diameter of 200–250 µm (Geldart group B) with aluminum and carbon nanotube additives was fluidized under reduced pressure (10–25 mbar). The pressure difference results in the flow of water vapor and, consequently, induces fluidization. The pressure in the evaporator was approx. 10 mbar, while in the reaction chamber it was approx. 25 mbar. The pressure difference of about 10–15 mbar allows for a flow of water vapor between the evaporator and the reaction chamber. During the tests, the pressures, temperatures and mass were measured. The pressure drop in the bed was closely related to the mass change in the fluidized bed. Full article
(This article belongs to the Special Issue Modelling of Fluidized Adsorption Beds)
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17 pages, 4504 KiB  
Article
A Combined CFD-Response Surface Methodology Approach for Simulation and Optimization of Arsenic Removal in a Fixed Bed Adsorption Column
by Zulfiqar Ali Solangi, Inamullah Bhatti and Khadija Qureshi
Processes 2022, 10(9), 1730; https://doi.org/10.3390/pr10091730 - 01 Sep 2022
Cited by 3 | Viewed by 1884
Abstract
An experimentally validated CFD model was developed for lab-scale arsenic (As) fixed-bed columns using COMSOL Multiphysics. The effects of key factors such as the adsorbent bed depth, the feed flow rate, and the initial As concentration (conc.) on the overall As removal performance [...] Read more.
An experimentally validated CFD model was developed for lab-scale arsenic (As) fixed-bed columns using COMSOL Multiphysics. The effects of key factors such as the adsorbent bed depth, the feed flow rate, and the initial As concentration (conc.) on the overall As removal performance were investigated. Subsequently, the CFD was combined with response surface methodology (RSM) to optimize process conditions and examine main and interaction effects of these factors on model responses, i.e., the As removal efficiency and the bed saturation time. The ANOVA results suggested that quadratic regression models were highly significant for both responses. The established regression model equations predicted the response values closer to CFD measurements. It was found that, compared with the initial As conc. and the feed flow rate, the effect of the bed depth was more significant. Moreover, both the As removal efficiency and the bed saturation time were increased reasonably with the increasing bed depth and decreased with the increasing feed flow rate and initial As conc. The optimum conditions for the As removal process were obtained as the bed height of 80 cm, the initial As concentration of 2.7 mmol/m3, and the feed flow rate of 1 L/min. The present combined CFD−RSM approach is a useful guideline in overall design and optimization of various lab-scale and industrial applications for removal of As from wastewater. Full article
(This article belongs to the Special Issue Modelling of Fluidized Adsorption Beds)
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