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Crystals
Special Issues
Membrane Technology for Solid Particles Production
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Membrane Technology for Solid Particles Production

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Industrial Crystallization".

Deadline for manuscript submissions: closed (20 June 2022) | Viewed by 6990

Special Issue Editor

Dr. Gianluca Di Profio

E-Mail Website
Guest Editor
Consiglio Nazionale delle Riceche (CNR), Istituto per la Tecnologia delle Membrane (ITM), Università della Calabria, Via Pietro Bucci Cubo 17/C, Rende, CS, Italy
Interests: membrane science and technology; crystallization—fundamentals and operations; water treatment processes; membranes materials—design and development; bioseparation and downstream processes
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue of Crystals intends to serve as a unique, multidisciplinary, and comprehensive forum covering broad aspects of science and technology underpinning the application of membrane-based operations to solidification processes.

Submissions may focus on any of the following non-exhaustive list of topics:

  • Membrane-assisted crystallization or precipitation of bio(macro)molecules (proteins, nucleic acids, polysaccharides, amino acids, organic materials, and their macromolecular complexes);
  • Crystallization in pores and in nano-confined, patterned, or irregular surfaces, including modeling and simulation works;
  • Reactive membrane crystallization processes;
  • Membrane crystallization from brines and industrial (waste)streams for zero waste generation and mining purposes;
  • Membrane crystallization for process intensification in hybrid systems and water desalination;
  • Membrane-assisted precipitation processes;
  • Microfluidics and microdevices for membrane-assisted crystallization.

Dr. Gianluca Di Profio
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. Crystals 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 2600 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

  • membrane-assisted crystallization
  • solid particle production
  • reactive crystallization
  • protein crystallization
  • process intensification strategy
  • membrane technology
  • membrane-assisted precipitation

Published Papers (2 papers)

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Research

16 pages, 5936 KiB  
Article
Phase Behaviour of Methane Hydrates in Confined Media
by Hao Bian, Lu Ai, Klaus Hellgardt, Geoffrey C. Maitland and Jerry Y. Y. Heng
Crystals 2021, 11(2), 201; https://doi.org/10.3390/cryst11020201 - 18 Feb 2021
Cited by 3 | Viewed by 2555
Abstract
In a study designed to investigate the melting behaviour of natural gas hydrates which are usually formed in porous mineral sediments rather than in bulk, hydrate phase equilibria for binary methane and water mixtures were studied using high-pressure differential scanning calorimetry in mesoporous [...] Read more.
In a study designed to investigate the melting behaviour of natural gas hydrates which are usually formed in porous mineral sediments rather than in bulk, hydrate phase equilibria for binary methane and water mixtures were studied using high-pressure differential scanning calorimetry in mesoporous and macroporous silica particles having controlled pore sizes ranging from 8.5 nm to 195.7 nm. A dynamic oscillating temperature method was used to form methane hydrates reproducibly and then determine their decomposition behaviour—melting points and enthalpies of melting. Significant decreases in dissociation temperature were observed as the pore size decreased (over 6 K for 8.5 nm pores). This behaviour is consistent with the Gibbs–Thomson equation, which was used to determine hydrate–water interfacial energies. The melting data up to 50 MPa indicated a strong, essentially logarithmic, dependence on pressure, which here has been ascribed to the pressure dependence of the interfacial energy in the confined media. An empirical modification of the Gibbs–Thomson equation is proposed to include this effect. Full article
(This article belongs to the Special Issue Membrane Technology for Solid Particles Production)
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20 pages, 1275 KiB  
Article
Impact of Surface Roughness on Crystal Nucleation
by Patrick Grosfils and James F. Lutsko
Crystals 2021, 11(1), 4; https://doi.org/10.3390/cryst11010004 - 23 Dec 2020
Cited by 29 | Viewed by 3789
Abstract
We examine the effect of rough surfaces on crystal nucleation by means of kinetic Monte Carlo simulations. Our work makes use of three-dimensional kMC models, explicit representation of transport in solution and rough surfaces modeled as randomly varying height fluctuations (roughness) with exponentially [...] Read more.
We examine the effect of rough surfaces on crystal nucleation by means of kinetic Monte Carlo simulations. Our work makes use of three-dimensional kMC models, explicit representation of transport in solution and rough surfaces modeled as randomly varying height fluctuations (roughness) with exponentially decaying correlation length (topology). We use Forward-Flux Sampling to determine the nucleation rate for crystallization for surfaces of different roughness and topology and show that the effect on crystallization is a complex interplay between the two. For surfaces with low roughness, small clusters form on the surface but as clusters become larger they are increasingly likely to be found in the bulk solution while rougher surfaces eventually favor heterogeneous nucleation on the surface. In both cases, the rough surface raises the local supersaturation in the solution thus leading to another mechanism of enhanced nucleation rate. Full article
(This article belongs to the Special Issue Membrane Technology for Solid Particles Production)
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