MEASURING DIFFUSION COEFFICIENT OF CO2/N2-IRANIAN HEAVY CRUDE OIL SYSTEMS

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ZAMAN BEHJAT; GHAZANFARI MOHAMMAD HOSEEIN; KHARRAT RIYAZ; RASHTCHIAN DAVOOD

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Seminar Paper

Paper Information

Seminar: CHEMICAL ENGINEERING CONGRESS AND EXHIBITION
Year:2010 | Issue:13

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Title

MEASURING DIFFUSION COEFFICIENT OF CO2/N2-IRANIAN HEAVY CRUDE OIL SYSTEMS

Author(s)

ZAMAN BEHJAT | GHAZANFARI MOHAMMAD HOSEEIN | KHARRAT RIYAZ | RASHTCHIAN DAVOOD

Keywords

DIFFUSION COEFFICIENT

CO2/N2

HEAVY OIL

PRESSURE DECAY METHOD

Abstract

IN THIS PAPER THE PRESSURE DECAY METHOD APPLIED TO MEASURE DIFFUSION COEFFICIENTS OF GASES IN ONE OF IRANIAN HEAVY CRUDE OIL USING VISUAL PVT CELL AT DIFFERENT CONDITIONS OF TEMPERATURE. NUMERICAL AS WELL AS GRAPHICAL SOLUTION WERE UTILIZED TO DETERMINE DIFFUSION COEFFICIENTS OF N2 AND CO2 IN CRUDE OIL AT INITIAL PRESSURE OF 54.6 BAR AND THREE DIFFERENT TEMPERATURES, 25, 40, 50OC FOR CO2 AND 25OC FOR N2. THE RESULTS SHOWED THAT DIFFUSIVITY OF CO2 IS LARGER THAN N2 AT SAME CONDITIONS OF TEMPERATURE AND INITIAL PRESSURE. ALSO, THE MEASURED DIFFUSION COEFFICIENT AT EARLY TIMES IS GREATER THAN THAT OF AT LATE TIMES. THE MEASURED DATA WERE USED AND THE CONSTANTS OF TWO TEMPERATURE DEPENDENT DIFFUSION COEFFICIENT CORRELATIONS FOR CO2-HEAVY OIL SYSTEM WERE MODIFIED. THE MEASURED DIFFUSION COEFFICIENTS ARE IN THE RANGE OF AVAILABLE DATA IN THE LITERATURE FOR DIFFERENT CRUDE OILS.

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APA: Copy

ZAMAN, BEHJAT, GHAZANFARI, MOHAMMAD HOSEEIN, KHARRAT, RIYAZ, & RASHTCHIAN, DAVOOD. (2010). MEASURING DIFFUSION COEFFICIENT OF CO₂/N₂-IRANIAN HEAVY CRUDE OIL SYSTEMS. IRANIAN NATIONAL CHEMICAL ENGINEERING CONGRESS & 1ST INTERNATIONAL REGIONAL CHEMICAL AND PETROLEUM E. SID. https://sid.ir/paper/908832/en

Vancouver: Copy

ZAMAN BEHJAT, GHAZANFARI MOHAMMAD HOSEEIN, KHARRAT RIYAZ, RASHTCHIAN DAVOOD. MEASURING DIFFUSION COEFFICIENT OF CO₂/N₂-IRANIAN HEAVY CRUDE OIL SYSTEMS. 2010. Available from: https://sid.ir/paper/908832/en

IEEE: Copy

BEHJAT ZAMAN, MOHAMMAD HOSEEIN GHAZANFARI, RIYAZ KHARRAT, and DAVOOD RASHTCHIAN, “MEASURING DIFFUSION COEFFICIENT OF CO₂/N₂-IRANIAN HEAVY CRUDE OIL SYSTEMS,” presented at the IRANIAN NATIONAL CHEMICAL ENGINEERING CONGRESS & 1ST INTERNATIONAL REGIONAL CHEMICAL AND PETROLEUM E. 2010, [Online]. Available: https://sid.ir/paper/908832/en

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