تصفح Chemical Engineering حسب العنوان
السجلات المعروضة 639 -- 658 من 1173
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La-Based Perovskites as Oxygen-Exchange Redox Materials for Solar Syngas Production
( Materials Research Society , 2017 , Conference Paper)This contribution reports the synthesis and characterization of La-based perovskites which can be used for the production of syngas via solar thermochemical splitting of H2O/CO2. The La-based perovskites were synthesized ... -
Large CO2 uptake on a monolayer of CaO
( Royal Society of Chemistry , 2017 , Article)Density functional theory calculations are used to study gas adsorption properties of a recently synthesized CaO monolayer, which is found to be thermodynamically stable in its buckled form. Due to its topology and strong ... -
Laundry wastewater treatment using ultrafiltration under different operating conditions
( American Institute of Physics Inc. , 2018 , Conference Paper)The laundry wastewater of one of the hospitals in Qatar was selected and studied. It was found that hospital laundry is releasing considerable amount of wastewater i.e. 1800 - 2500 liters/cycle while washing 40 - 50 kg of ... -
Life cycle assessment of a microbial desalination cell for sustainable wastewater treatment and saline water desalination
( Elsevier Ltd , 2018 , Article)Microbial desalination cells (MDCs), with bifunctional capacity to simultaneously treat wastewater and desalinate seawater at low energy consumption, have attracted great attention in recent years. However, the environmental ... -
Life cycle assessment of osmotic microbial fuel cells for simultaneous wastewater treatment and resource recovery
( Springer Verlag , 2019 , Article)Purpose An osmotic microbial fuel cell (OsMFC) is derived from the integration of a forward osmosis (FO) membrane into a conventional microbial fuel cell (MFC), with enhanced performance in bioelectricity generation from ... -
Life cycle assessment of particulate recycled low density polyethylene and recycled polypropylene reinforced with talc and fiberglass
( Trans Tech Publications Ltd , 2011 , Conference Paper)Although recycled polymers and reinforced polymer composites have been in use for many years there is little information available on their environmental impacts. The goal of the present study is to analyze the environmental ... -
Life cycle environmental impact comparison of bioelectrochemical systems for wastewater treatment
( Elsevier B.V. , 2019 , Conference Paper)Bioelectrochemical systems (BESs) are developed to transform the energy harvested from the biomass into electricity. Different types of BESs including microbial fuel cell (MFC), microbial electrolysis cell (MEC), and ... -
LIME: Long-Term Forecasting Model for Desalination Membrane Fouling to Estimate the Remaining Useful Life of Membrane
( Springer Science and Business Media Deutschland GmbH , 2023 , Conference Paper)Membrane fouling is one of the major problems in desalination processes as it can cause a severe drop in the quality and quantity of the permeate water. This paper presents a data-driven approach for long-term forecasting ... -
Limitations and high pressure behavior of MOF-5 for CO2 capture
( Royal Society of Chemistry , 2013 , Article)Porous network structures (e.g. metal–organic frameworks, MOFs) show considerable potential in dethroning monoethanol amine (MEA) from being the dominant scrubber for CO2 at the fossil-fuel-burning power generators. In ... -
Limits and possible solutions in quantum dot organic solar cells
( Elsevier Ltd , 2018 , Article Review)In this review article, we present recent advancements in the field of organic photovoltaics (OPV) that have been achieved through the applications of quantum dots (QDs). We describe the leading experimental accomplishments ... -
Lipid production under a nutrient-sufficient condition outperforms starvation conditions due to a natural polarization of lipid content in algal biofilm
( Elsevier Ltd , 2023 , Article)Attached algae cultivation for biofuel production has received proliferated attention given its advantage to reduce harvesting/dewatering costs and contamination risk. In this study, the effects of various nutrient starvation ... -
Lithium loaded coal fly ash as sustainable and effective catalyst for the synthesis of glycerol carbonate from glycerol
( Elsevier Ltd , 2021 , Article)Coal fly ash (CFA) has been employed as a catalytic support for lithium ions by impregnation. The basicity, basic strength, and stability of the resultant catalyst were further tuned by varying active species concentration ... -
Long-term residential exposure to PM2.5, PM10, black carbon, NO2, and ozone and mortality in a Danish cohort
( Elsevier Ltd , 2019 , Article)Air pollutants such as NO2 and PM2.5 have consistently been linked to mortality, but only few previous studies have addressed associations with long-term exposure to black carbon (BC) and ozone (O3). We investigated the ... -
Long-Term Treatment of Highly Saline Brine in a Direct Contact Membrane Distillation (DCMD) Pilot Unit Using Polyethylene Membranes
( MDPI , 2022 , Article)Membrane distillation (MD) is an attractive separation process for wastewater treatment and desalination. There are continuing challenges in implementing MD technologies at a large industrial scale. This work attempts to ... -
Looking Ahead: Restructuring Chemical Engineering Undergraduate Curriculum for Optimal Impact of Process Simulation: Student Benefits in Optimization and Sustainability
( American Society for Engineering Education , 2021 , Article)Proper chemical process simulation knowledge is valuable for senior chemical engineering students to deliver optimal design outcomes and achieve many learning objectives. This study aims to highlight the benefits of ... -
Loss circulation in drilling and well construction: The significance of applications of crosslinked polymers in wellbore strengthening: A review
( Elsevier B.V. , 2020 , Article Review)Loss circulation is one of the major concerns in drilling and well construction. The uncontrolled flow of fluids into formation while drilling or primary cementing lead to substantial non-productive time (NPT). The methods ... -
Low temperature activation of carbon dioxide by Ammonia in Methane dry reforming?A thermodynamic study
( MDPI AG , 2018 , Article)Methane dry reforming (MDR) is an attractive alternative to methane steam reforming for hydrogen production with low harmful environmental emissions on account of utilizing carbon dioxide in the feed. However, carbon ... -
Machine learning based photovoltaics (PV) power prediction using different environmental parameters of Qatar
( MDPI AG , 2019 , Article)Photovoltaics (PV) output power is highly sensitive to many environmental parameters and the power produced by the PV systems is significantly affected by the harsh environments. The annual PV power density of around 2000 ... -
Machine Learning for Capillary Pressure Estimation
( Society of Petroleum Engineers (SPE) , 2022 , Article)Capillary pressure plays an essential role in controlling multiphase flow in porous media and is often difficult to be estimated at subsurface conditions. The Leverett capillary pressure function J provides a convenient ... -
Machine learning in hydrogen production
( Institution of Chemical Engineers , 2022 , Other)Global demand for clean fuels is growing due to pollution and global warming. Undoubtedly, hydrogen is one of the main options for producing clean energy, which has been receiving special attention for years and global ...