The critical runaway condition and stability criterion in the phenol–formaldehyde reaction

The procedure of phenol–formaldehyde polymerization is a rather important and complicated reaction in the chemical industry. This exothermic polymeric reaction releases a huge amount of heat. The high amount of energy accumulated and increasing temperature in this reaction process always lead to run...

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Bibliographic Details
Published in:Journal of loss prevention in the process industries 2000-03, Vol.13 (2), p.91-108
Main Authors: Luo, Kuo-Ming, Lin, Sheann-Huei, Chang, Jih-Guang, Lu, Kai-Tai, Chang, Ching-Tu, Hu, Kwan-Hua
Format: Article
Language:English
Subjects:
Alkali–catalyst
Critical temperature
Phenol–formaldehyde polymerization
Runaway reaction
Stable criteria
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Summary:The procedure of phenol–formaldehyde polymerization is a rather important and complicated reaction in the chemical industry. This exothermic polymeric reaction releases a huge amount of heat. The high amount of energy accumulated and increasing temperature in this reaction process always lead to runaway reaction and a hazard situation owing to the high released heat and improper operation. In this investigation, we used sodium hydroxide as alkali–catalyst in the phenol–formaldehyde polymerization and estimated the reaction kinetics parameters to evaluate the thermal hazard conditions. The critical temperatures and stable criteria of the runaway reaction in this exothermic polymerization were evaluated. This technique is important and useful for safe operation in the phenol–formaldehyde polymerization process.
ISSN:0950-4230
DOI:10.1016/S0950-4230(99)00071-6