期刊
CHEMICAL ENGINEERING & TECHNOLOGY
卷 34, 期 8, 页码 1359-1367出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ceat.201000277
关键词
Atmospheric distillation column; Crude oil; Energy saving; Flash zone
资金
- Royal Institute of Technology (KTH)
- Shazand-Arak refinery complex
Optimization of a typical crude oil atmospheric distillation unit and reduction of energy conservation were carried out through modifying the implementation and change in the flash zone of the tower. A conventional procedure in such units involves the combination of liquid and vapor product of the prefractionation train surge drum upon introduction to the tower. However, it is theoretically illustrated and represented by simulation means that introducing the vapor feed into the upper stages of the distillation column separately can lead to an energy saving of 12.6% in the condenser duty, an increased liquid-to-gas flow (L/G) at certain points of the column, and hence to a reduction in diameter and investment costs of new tower designs of approximately US$ 0.7 million a(-1). The proposal can be put into practice without the need of additional equipments or additional cost of difficult rerouting the streams. An industrial case study of a steadystate crude oil distillation unit is given by simulation provision of AspenHysys (TM).
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