期刊
JOURNAL OF FOOD ENGINEERING
卷 116, 期 4, 页码 840-851出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jfoodeng.2013.01.034
关键词
Vegetable oil refining; Process simulation; Advanced thermodynamic models; Formation of flammable mixtures
资金
- Regione Toscana (Bando Unico RS) [2009DUA/526090469/1]
This work focuses on the performance analysis of an industrial vegetable oil refinery. Using a commercial process simulator, a process model was developed and validated against actual vegetable oil refinery field data. The simulator allowed investigating both energy and safety aspects related to the presence of residual extraction solvent (extraction grade hexane) in the processed crude vegetable oil. The critical nodes for hexane accumulation in the process were evaluated, both considering ordinary operative conditions and undesired process deviations due to increase of the hexane content. In this latter case, the control actions able to restore the normal operation were simulated, in terms of increased utility consumption (e.g., motive steam for ejectors and cooling water) or by modifying and optimizing equipment operating conditions. Finally, the possibility of flammable mixtures formation inside process vent pipes, caused by the entrainment of air due strong vacuum conditions, was also investigated. (C) 2013 Elsevier Ltd. All rights reserved.
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