Browsing Chemical Engineering by Title
Now showing items 726-745 of 943
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Safety and techno-economic analysis of ethylene technologies
( Elsevier Ltd , 2016 , Article)Recent growth in shale gas production has contributed to the interest in establishing numerous petrochemical plants for shale-gas monetization. The ethylene industry is one of the main beneficiaries of such growth because ... -
Screening alternatives for producing paraffinic phase change materials for thermal energy storage in buildings
( John Wiley and Sons Ltd , 2017 , Article)Screening alternatives for producing paraffinic phase change materials (PCMs) from natural gas‐based products was investigated. Based on the quality and cost of these PCMs, two sources were identified: (i) hydrogenated ... -
Second law analysis of a gravity-driven liquid film flowing along an inclined plate subjected to constant wall temperature
( Inderscience Publishers , 2014 , Article)The second law analysis of a gravity-driven liquid having temperature-dependent viscosity and flowing along an inclined heated plate was studied. The computational fluid dynamics (CFD) package FLUENT was used to obtain the ... -
Second law analysis of compressible flow through a diffuser subjected to constant heat flux at wall
( Elsevier Ltd , 2010 , Article)Entropy generation is equivalent to destruction of available work (exergy). The useful energy is destroyed due to the intrinsic irreversibility associated within thermodynamic systems. Exergy analysis can be used as an ... -
Second law analysis of compressible flow through a diffuser subjected to constant wall temperature
( Inderscience , 2010 , Article)This study presents the investigation of entropy generation in compressible turbulent flow of air through a diffuser. Constant temperature boundary condition is applied at the wall. Two-dimensional solution of velocity and ... -
Selective adsorption of carbon dioxide, methane and nitrogen using resorcinol-formaldehyde-xerogel activated carbon
( Springer New York LLC , 2017 , Article)Resorcinol–formaldehyde xerogel was prepared, carbonized and activated in specific conditions to form resorcinol–formaldehyde activated carbon xerogel (RF-ACX) that was to produce microporous nanoparticles. RF-ACX was used ... -
Self-healing behavior of epoxy-based double-layer nanocomposite coatings modified with Zirconia nanoparticles
( Qatar University Press , 2021 , Poster)This work reports the self-healing behavior of epoxy reinforced ZrO2 double-layer nanocomposite coatings to alleviate the deleterious effects of corrosion in the oil and gas industry. The corrosion inhibitor (imidazole) ... -
Self-healing performance of multifunctional polymeric smart coatings
( MDPI AG , 2019 , Article)Multifunctional nanocomposite coatings were synthesized by reinforcing a polymeric matrix with halloysite nanotubes (HNTs) loaded with corrosion inhibitor (NaNO3) and urea formaldehyde microcapsules (UFMCs) encapsulated ... -
Self-Healing Performance of Smart Polymeric Coatings Modified with Tung Oil and Linalyl Acetate
( Qatar University Press , 2021 , Poster)This work focuses on the synthesis and characterization of polymeric smart self-healing coatings. A comparison of structural, thermal, and self-healing properties of two different polymeric coatings comprising distinct ... -
Self-Healing Silicones for Outdoor High Voltage Insulation: Mechanism, Applications and Measurements
( MDPI , 2022 , Article Review)This paper discusses the state of the art in the application of self-healing silicone-based materials for outdoor high-voltage insulation. Both the dynamic behavior of the dimethyl side groups of silicone rubber and the ... -
Self-organization in ionic liquids: From bulk to interfaces and films
( Sociedade Brasileira de Quimica , 2016 , Article)In this contribution we present an overview on the relation between the complex structure of ionic liquids (ILs) and its impact in the field of surface science. The results herein described result mainly from modeling and ... -
Self-standing elastomeric composites based on lithium ferrites and their dielectric behavior
( American Institute of Physics Inc. , 2014 , Article)Lithium ferrite (LiFe5O8) is an attractive material for technological applications due to its physical properties, which are significantly dependent on the preparation method and raw materials. In this work, LiFe5O8 ... -
Settling behavior of fine cuttings in fiber-containing polyanionic fluids for drilling and hole cleaning application
( Elsevier B.V. , 2021 , Article)For efficient drilling operations, cuttings transport within the oil and gas wellbore is fundamental. Inadequate hole cleaning results in many problems including reduced rate of penetration, increased torque, bit wearing, ... -
Silica and carbon decorated silica nanosheet impact on primary human immune cells
( Elsevier B.V. , 2018 , Article)Silica nanosheets (SiO 2 NS) are considered to be a promising material in clinical practice for diagnosis and therapy applications. However, an appropriate surface functionalization is essential to guarantee high ... -
A simplified method for calculating saturated liquid densities
( Elsevier B.V. , 2004 , Article)A simplification for the Nasrifar–Moshfeghian (NM) liquid density correlation has been developed. A replacement for the Mathias and Copeman temperature-dependent term with the original Soave–Redlich–Kwong equation of state ... -
Simulation and economic evaluation of natural gas hydrates [NGH] as an alternative to liquefied natural gas [LNG]
( Elsevier B.V. , 2005 , Article)Despite the fact that relatively little is known about the ultimate resource potential of natural gas hydrates, it is certain that gas hydrates are a vast storehouse of natural gas and significant technical challenges need ... -
Simulation and Optimization of an LNG Plant Cold Section
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)Simulation and Optimization of an LNG Plant Cold Section Mary Anna Katebah, Mohamed Mamoon Hussein, Easa I. Almusleh* Chemical engineering department, Qatar University Global energy demands are expected to rise by almost ... -
Simulation of large capacity MSF brine circulation plants
( Elsevier B.V. , 2006 , Article)New multistage flashing desalination units (MSF) are being constructed with large capacity that may vary from 50,000 to 75,000 m3/d. This is almost 2–3 times the conventional unit capacity of 27,000–32,000 m3/d, which were ... -
Simulation-optimization framework for synthesis and design of natural gas downstream utilization networks
( MDPI AG , 2018 , Article)Many potential diversification and conversion options are available for utilization of natural gas resources, and several design configurations and technology choices exist for conversion of natural gas to value-added ... -
Single and multi-component adsorption of aromatic acids using an eco-friendly polyaniline-based biocomposite
( Elsevier B.V. , 2017 , Article)The polyaniline coated with an agricultural waste (Argan nut shell) was prepared via in-situ chemical polymerization and used as an adsorbent material for removal of trimellitic (Tri), hemimellitic (Hemi) and pyromellitic ...
