Abstract

Iraqi oil crudes have some of the physical and chemical characteristics that distinguish it from other types of oil crudes in the world. Some of these features such us molecular composition, rheological, viscosity and emulsions are studied carefully by researchers. In this work, a comparative study of the linear and the non-linear optical properties for typical heavy and light crude oils of Iraqi origin was studied utilizing Z-scan technique. The He -Ne laser of wavelength 632.8 nm had been used for this purpose. These samples were collected from Basra and Kut oil fields. The values of the non-linear refractive index (n2), non-linear absorption coefficient (β), and third-order electrical susceptibility (χ3) were estimated respectively. The obtained results show that Iraqi oil has a significant linear and non-linear optical properties.

Highlights

  • Crude oil is a liquid fuel source located underground, it is extracted through drilling, and it is a base part of vehicle fuel, plastics, chemicals, and other petroleum products

  • The crude oil can be categorized as either light or heavy according to the American Petroleum Institute (API0) gravity [2]

  • The non-linear absorption coefficient was obtained from the transmittance curves in open-cell configuration, for all samples we finding that the non-linear absorption effect is associated to saturable absorption

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Summary

Introduction

Crude oil is a liquid fuel source located underground, it is extracted through drilling, and it is a base part of vehicle fuel, plastics, chemicals, and other petroleum products. We set out to compare the linear and the nonlinear optical properties of different heavy and light Iraqi crude oils extracted from Basra and Kut oil fields. The Z-Scan technique had been used to study the linear and the nonlinear optical properties of the oil samples.

Results
Conclusion

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