Effects of different seed forms on crystal size distribution for seeded batch crystallization process

The effects of different seed forms on crystal product distribution are presented for optimizing crystal size distribution (CSD) in the case of seeded batch cooling crystallization process. Three different seed distributions and quality are introduced as variable parameter for CSD control of seeded...

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Main Authors: Siti Zubaidah, Adnan, Noor Asma Fazli, Abdul Samad
Format: Article
Language:English
English
Published: Elsevier Ltd 2023
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/37898/
http://umpir.ump.edu.my/id/eprint/37898/1/Effects%20of%20different%20seed%20forms%20on%20crystal%20size%20distribution.pdf
http://umpir.ump.edu.my/id/eprint/37898/2/Effects%20of%20different%20seed%20forms%20on%20crystal%20size%20distribution%20for%20seeded%20batch%20crystallization%20process.pdf
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author Siti Zubaidah, Adnan
Noor Asma Fazli, Abdul Samad
author_facet Siti Zubaidah, Adnan
Noor Asma Fazli, Abdul Samad
author_sort Siti Zubaidah, Adnan
building UMP Institutional Repository
collection Online Access
description The effects of different seed forms on crystal product distribution are presented for optimizing crystal size distribution (CSD) in the case of seeded batch cooling crystallization process. Three different seed distributions and quality are introduced as variable parameter for CSD control of seeded batch crystallization process via simulation in Matlab software. Similar implementation is conducted in the experimental study using the same operating conditions and parameters. Cubic cooling profile is adapted as the temperature profile for potash alum crystallization system due to its ability to control secondary nucleation. The experimental data obtained from laboratory works are validated the simulation results from Matlab where good agreement has been achieved. In terms of mean crystal size of the final CSD, the seed profile with 0.29 standard deviation labelled Sieved Seed 2, produces the best seed profile for seeded batch potash alum crystallization process because it has the largest size of crystals at mean crystal size of 500 μm grown from 90 μm of seed crystals. However, considerable fine crystals at mean crystal size of 30 μm are also obtained indicating trade-off between large size of crystals and fine crystals are needed. In conclusion, this work highlights the effects of different seed quality in terms of distribution and shape on crystal size distribution as one of the important quality specifications in crystallization process and demonstrates narrow distribution of seed crystals as recommendation on the best seed quality for producing desired CSD.
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spelling ump-378982025-03-03T04:46:33Z http://umpir.ump.edu.my/id/eprint/37898/ Effects of different seed forms on crystal size distribution for seeded batch crystallization process Siti Zubaidah, Adnan Noor Asma Fazli, Abdul Samad QD Chemistry T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology The effects of different seed forms on crystal product distribution are presented for optimizing crystal size distribution (CSD) in the case of seeded batch cooling crystallization process. Three different seed distributions and quality are introduced as variable parameter for CSD control of seeded batch crystallization process via simulation in Matlab software. Similar implementation is conducted in the experimental study using the same operating conditions and parameters. Cubic cooling profile is adapted as the temperature profile for potash alum crystallization system due to its ability to control secondary nucleation. The experimental data obtained from laboratory works are validated the simulation results from Matlab where good agreement has been achieved. In terms of mean crystal size of the final CSD, the seed profile with 0.29 standard deviation labelled Sieved Seed 2, produces the best seed profile for seeded batch potash alum crystallization process because it has the largest size of crystals at mean crystal size of 500 μm grown from 90 μm of seed crystals. However, considerable fine crystals at mean crystal size of 30 μm are also obtained indicating trade-off between large size of crystals and fine crystals are needed. In conclusion, this work highlights the effects of different seed quality in terms of distribution and shape on crystal size distribution as one of the important quality specifications in crystallization process and demonstrates narrow distribution of seed crystals as recommendation on the best seed quality for producing desired CSD. Elsevier Ltd 2023 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/37898/1/Effects%20of%20different%20seed%20forms%20on%20crystal%20size%20distribution.pdf pdf en http://umpir.ump.edu.my/id/eprint/37898/2/Effects%20of%20different%20seed%20forms%20on%20crystal%20size%20distribution%20for%20seeded%20batch%20crystallization%20process.pdf Siti Zubaidah, Adnan and Noor Asma Fazli, Abdul Samad (2023) Effects of different seed forms on crystal size distribution for seeded batch crystallization process. Materials Today: Proceedings. ISSN 2214-7853. (In Press / Online First) (In Press / Online First) https://doi.org/10.1016/j.matpr.2023.06.110 https://doi.org/10.1016/j.matpr.2023.06.110
spellingShingle QD Chemistry
T Technology (General)
TA Engineering (General). Civil engineering (General)
TP Chemical technology
Siti Zubaidah, Adnan
Noor Asma Fazli, Abdul Samad
Effects of different seed forms on crystal size distribution for seeded batch crystallization process
title Effects of different seed forms on crystal size distribution for seeded batch crystallization process
title_full Effects of different seed forms on crystal size distribution for seeded batch crystallization process
title_fullStr Effects of different seed forms on crystal size distribution for seeded batch crystallization process
title_full_unstemmed Effects of different seed forms on crystal size distribution for seeded batch crystallization process
title_short Effects of different seed forms on crystal size distribution for seeded batch crystallization process
title_sort effects of different seed forms on crystal size distribution for seeded batch crystallization process
topic QD Chemistry
T Technology (General)
TA Engineering (General). Civil engineering (General)
TP Chemical technology
url http://umpir.ump.edu.my/id/eprint/37898/
http://umpir.ump.edu.my/id/eprint/37898/
http://umpir.ump.edu.my/id/eprint/37898/
http://umpir.ump.edu.my/id/eprint/37898/1/Effects%20of%20different%20seed%20forms%20on%20crystal%20size%20distribution.pdf
http://umpir.ump.edu.my/id/eprint/37898/2/Effects%20of%20different%20seed%20forms%20on%20crystal%20size%20distribution%20for%20seeded%20batch%20crystallization%20process.pdf