Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Yavar Karimi"'
Publikováno v:
Journal of Petroleum Science and Technology, Vol 10, Iss 3, Pp 67-74 (2020)
A novel polymeric nanocomposite pour point depressant (PPD), based on polymethyl methacrylate (PMMA) and montmorillonite (MMT) clay, was synthesized and characterized. For a comprehensive comparison, the influence of neat polymethyl methacrylate (PMM
Externí odkaz:
https://doaj.org/article/2ff9d93fa8184777908395105eac6af2
Autor:
Yavar Karimi, Ali Reza Solaimany Nazar
Publikováno v:
Iranian Journal of Oil & Gas Science and Technology, Vol 9, Iss 1, Pp 1-15 (2020)
The influences of several operating factors on the viscosity of the Isfahan refinery waxy crude oil sample are studied through conducting some rheological shear rotational tests. The Taguchi design method is adopted to determine the impact of factors
Externí odkaz:
https://doaj.org/article/2c142ddc43eb4f6080f3dfff1f73be1f
Autor:
Ali Reza Solaimany Nazar, Navvab Salehi, Yavar Karimi, Masoud Beheshti, Roha Kasra Kermanshahi
Publikováno v:
Journal of Petroleum Science and Technology, Vol 8, Iss 2, Pp 70-85 (2018)
To assess the effect of micro-organisms on the reduction of wax appearance temperature (WAT) of waxy crude oil, some appropriate strains were obtained from contaminated samples exposed to hydrocarbon compounds for a long time. By conducting some scre
Externí odkaz:
https://doaj.org/article/4665fa09050547c788048129065f23a2
Autor:
Yavar Karimi, Ali Reza Solaimany Nazar
Publikováno v:
Iranian Journal of Oil & Gas Science and Technology, Vol 6, Iss 1, Pp 26-44 (2017)
Wax deposition phenomenon changes the rheological behavior of waxy crude oil completely. In the current work, the rheological time-dependent and time-independent behaviors of waxy crude oil samples are studied and flow curve and compliance function a
Externí odkaz:
https://doaj.org/article/5e1d53a268ab4602a70db07fed76c9f1
Publikováno v:
Chemical Engineering & Technology. 44:2236-2248
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 143:671-684
The effect of nanoparticles aggregation on the heat transfer coefficient in a heat dissipation process of a circular tube is evaluated through computational fluid dynamics (CFD) technique, and the simulation results are compared to experimental data.
Publikováno v:
Journal of Petroleum Science and Engineering. 163:570-575
In this study, the asphaltene particle aggregation process is studied and effects of asphaltene concentration, n-heptane to toluene volume ratio, type and concentration of asphaltene aggregation inhibitor are investigated on onset of precipitation an