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Structure Analysis of the Fractionator Overhead Vapor Line of a Delayed Coker Unit
Applied SciencesIn view of the great impact of the pipeline system in a delayed coker unit (DCU) on production and operation safety, we applied computational fluid dynamics (CFD) to investigate the flow in a fractionator overhead vapor line connected to an air cooler in
Chun-Lang Yeh, Yu-Hsi Chung
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Revista Principia, 2023 This paper describes a dynamic mathematical model developed to simulate a diolefin reactor currently used in an existing naphtha hydrotreating process. Diolefins polymerize at temperatures above 200 °C, which is reached in a reactor of hydrotreatment of ...
Marteson Cristiano dos Santos Camelo +2 more
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NTU Journal of Pure Sciences, 2021 Groundwater is one of the most important sources of water storage in the world, which is used as an alternative when rains are scarce and the drainage of the Tigris River is low.
Arwa M. Othman +2 more
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BMC Health Services Research, 2021 Background The COVID-19 pandemic has caused major disruption to healthcare services globally and has impacted on tuberculosis (TB) patients and TB diagnosis and treatment services both in low- and high-income countries.
Oluwatosin Nkereuwem +9 more
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Upgrading of coker distillate under variable hydrotreating operating conditions
Egyptian Journal of Petroleum, 2011 Studies on hydrotreating coker distillates, produced from a delayed coker unit were done using a commercially available CoMo/γ-Al2O3 catalyst, on which 0.2 wt% P2O5 was added in order to improve its characteristics.
H.A. Elsayed, H.S. Ahmed, M.F. Monufy
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On the classification of nonsimple graph C*-algebras [PDF]
, 2009 We prove that a graph C*-algebra with exactly one proper nontrivial ideal is classified up to stable isomorphism by its associated six-term exact sequence in K-theory.
C -algebras +2 more
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Maximal equicontinuous factors and cohomology for tiling spaces [PDF]
, 2012 We study the homomorphism induced on cohomology by the maximal equicontinuous factor map of a tiling space. We will see that this map is injective in degree one and has torsion free cokernel.
Barge, Marcy +2 more
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An Axiomatic Setup for Algorithmic Homological Algebra and an Alternative Approach to Localization [PDF]
, 2011 In this paper we develop an axiomatic setup for algorithmic homological algebra of Abelian categories. This is done by exhibiting all existential quantifiers entering the definition of an Abelian category, which for the sake of computability need to be ...
Auslander M. +11 more
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A note on coherent orientations for exact Lagrangian cobordisms
, 2019 Let $L \subset \mathbb R \times J^1(M)$ be a spin, exact Lagrangian cobordism in the symplectization of the 1-jet space of a smooth manifold $M$. Assume that $L$ has cylindrical Legendrian ends $\Lambda_\pm \subset J^1(M)$.
Karlsson, Cecilia
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, 2013 Generalizing local Gromov-Witten theory, in this paper we define a local version of symplectic field theory. When the symplectic manifold with cylindrical ends is four-dimensional and the underlying simple curve is regular by automatic transversality, we
Fabert, Oliver
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