ERIC Number: EJ935055
Record Type: Journal
Publication Date: 2011
Abstractor: As Provided
Reference Count: 0
Class and Home Problems. Modeling an Explosion: The Devil Is in the Details
Hart, Peter W.; Rudie, Alan W.
Chemical Engineering Education, v45 n1 p15-20 Win 2011
Within the past 15 years, three North American pulp mills experienced catastrophic equipment failures while using 50 wt% hydrogen peroxide. In two cases, explosions occurred when normal pulp flow was interrupted due to other process problems. To understand the accidents, a kinetic model of alkali-catalyzed decomposition of peroxide was developed. Modeling a normal start-up condition where peroxide and sodium hydroxide flow to a mixer in a stoichiometric ratio does not show a significant pressure rise, but a scenario in which peroxide enters the pump in advance of the sodium hydroxide displays a rapid pressure rise that greatly exceeds the rated pressure for the pumps.
Descriptors: Accidents, Mechanics (Physics), Chemistry, Chemical Engineering, Models, Scientific Principles, Equipment Maintenance, College Science, Kinetics
Chemical Engineering Education, Chemical Engineering Division of ASEE. P.O. Box 142097, Gainesville, FL 32614. Tel: 352-392-0861; Fax: 352-392-0861; e-mail: email@example.com; Web site: http://cee.che.ufl.edu/index.html
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Authoring Institution: N/A