A New Method for Estimating the EFV Distillation Curve

Tarifa, Enrique Eduardo; Erdmann, Eleonora; Humana, Demetrio; Martínez, J.

doi:10.1080/10916460701707695

Cited by 1 publication

(5 citation statements)

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“…The 0% atmospheric Flash temperature of the current is obtained; with this value (starting from graphics) we obtain the value of the lateral extraction temperature, t 7 . For lineal interpolation between t 5 and t 7 , t 6 is calculated.…”

Section: Washing Zonementioning

confidence: 99%

“…The calculation procedure is presented below: Data: S B , OF, t 5 , products performances (N, JP, GOL, GOP), t ZF , V ZF . Unknown Variables: S i (water vapor of lateral stripping), V Si (despoiled vapor in the lateral stripping), t 7 (temperature of the side stream tray), t 6 (vapor temperature that ascends toward extraction tray), L 7 (liquid flow that leaves the extraction tray). Equations of matter balances, (4) (5) = + + + + (4)…”

Section: Washing Zonementioning

confidence: 99%

“…For topping design by conventional procedure is necessary to transform the data distillation curve from TBP to EFV, Tarifa et al (2009) [7] presents a new method to estimate the equilibrium flash vaporization (EFV) distillation curve from standard laboratory analytical assay procedures. The cuts of this process should take place with ASTM maximum temperature specifications presented in Table 1.…”

Section: Conventional Proceduresmentioning

confidence: 99%

“…The comparison of EFV curves of each products obtained from the conventional method and simulation (Tarifa et al (2009) [7] ) was performed. The EFV curve of naphtha is presented in Fig.10, where a small difference between the two methodologies is observed, matching in the 100% value of the mentioned curve.…”

Section: International Organization Of Scientific Researchmentioning

confidence: 99%

“…Three of the most important assays are [4] [5] [6] ASTM (considered the universal, normalized method), TBP (whose results are difficult to reproduce), and Flash (instantaneous vaporization) [7] .…”

Section: Petroleum Characterizationmentioning

confidence: 99%

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Topping Process Using Different Methodologies

Martínez¹,

Erdmann²

2014

IOSRJEN

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-The first process which crude oil undergoes in a refinery is the atmospheric distillation o topping, whose aim is to fraction the crude oil in their products: naphtha, kerosene, gas oil, etc. The stages involved are: process analysis, carrying out laboratory analysis, identification of parameters, determination of operating conditions and analysis of operating procedures, data processing, stationary simulation and development of results. The column to simulate consists of a rectification column with three side separators and a condenser. For modeling this process a conventional procedure was performed using the Excel spreadsheet. And for simulating stationary was used HYSYS software. First the crude was characterized by laboratory analysis. Starting from these analyses, the TBP curve was built and global properties of crude were defined. Resolved the crude oil physicochemical, a model of the column was built. The stationary states found from simulation were compared with the results of the conventional procedure; the comparison had an acceptable degree of consistency. Finally, a series of alternatives were studied for the design and operating conditions. By resolving the designing process of the topping column, the advantages and disadvantages of a simulator can be compared with a conventional resolution method.

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Section: Washing Zonementioning

confidence: 99%

Section: Washing Zonementioning

confidence: 99%