化学工业与工程
Home  |   |  About Journal  |  Editorial Board  |  Instruction  |  Subscriptions  |  Download  |  Publication Ethics  |  Contacts Us  |  Chinese
Chemcial Industry and Engineering 2023, Vol. 40 Issue (4) :58-66    DOI: 10.13353/j.issn.1004.9533.20220350
Current Issue | Next Issue | Archive | Adv Search << | >>
Kinetics of semi-batch reaction crystallization of methionine under CO2 acidification condition
CHEN Zhirong, ZHANG Fujia, YUAN Shenfeng, YIN Hong
College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China

Abstract
Reference
Related Articles
Download: PDF (2335KB)   HTML ()   Export: BibTeX or EndNote (RIS)      Supporting Info
Abstract Aiming at the synthesis of methionine by hydantion method, using potassium methionine as raw material, the reaction crystallization process of methionine under CO2 acidification condition was studied by batch-dynamic method, and the crystallization kinetic model was established. The population number balance equation was solved by moment method, and the crystallization kinetic parameters were obtained by fitting the data with multiple linear regression using least square method. The results show that the crystal growth is size-independent, and growth activation energy is 21.0 kJ·mol-1. The exponents of supersaturation with respect to nucleation rate and growth rate are 0.62 and 1.52, respectively. The effect of crystal agglomeration on the crystallization process cannot be ignored. The apparent gas velocity and stirring speed have obvious effects on crystal nucleation and agglomeration. High supersaturation and high stirring speed are not conducive to the increase of average crystal size.
Service
Email this article
Add to my bookshelf
Add to citation manager
Email Alert
RSS
Articles by authors
CHEN Zhirong
ZHANG Fujia
YUAN Shenfeng
YIN Hong
Keywordsmethionine   reaction crystallization   batch-dynamic method   crystallization kinetics     
Received 2022-06-15;
About author:
Cite this article:   
CHEN Zhirong, ZHANG Fujia, YUAN Shenfeng, YIN Hong.Kinetics of semi-batch reaction crystallization of methionine under CO2 acidification condition[J]  Chemcial Industry and Engineering, 2023,V40(4): 58-66
Copyright 2010 by Chemcial Industry and Engineering