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السجلات المعروضة 21 -- 40 من 49
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Impact of sampling technique on the performance of surrogate models generated with artificial neural network (ANN): A case study for a natural gas stabilization unit
( MDPI AG , 2019 , Article)Data-driven models are essential tools for the development of surrogate models that can be used for the design, operation, and optimization of industrial processes. One approach of developing surrogate models is through ... -
Influence of carbon uniformity on its characteristics and adsorption capacities of CO2 and CH4 gases
( MDPI AG , 2021 , Article)Activated carbons of resorcinol-formaldehyde aerogels (AC-RFA) were prepared and mixed with multiwall carbon nanotubes (MWCNTs) with various ratios. Samples were characterized by different techniques. The novelty of the ... -
Influence of casting solvents on co2/ch4 separation using polysulfone membranes
( MDPI AG , 2021 , Article)Polysulfone membranes exhibit resistance to high temperature with low manufacturing cost and high efficiency in the separation process. The composition of gases is an important step that estimates the efficiency of separation ... -
Influence of chitosan addition on resorcinol-formaldehyde xerogel structure
( MDPI AG , 2019 , Article)Gels are usually not environment-friendly due to their difficult biodegradability. Therefore, the addition of chitosan, even in small amounts, will make such gels biodegradable and thus can be useful in many applications ... -
Innovative bppo anion exchange membranes formulation using diffusion dialysis-enhanced acid regeneration system
( MDPI AG , 2021 , Article)Recycling of acid from aqueous waste streams is crucial not only from the environmental point of view but also for maturing the feasible method (diffusion dialysis). Anion exchange membrane (AEM)–based diffusion dialysis ... -
Key applications and potential limitations of ionic liquid membranes in the gas separation process of CO2, CH4, N2, H2 or mixtures of these gases from various gas streams
( MDPI AG , 2020 , Article Review)Heightened levels of carbon dioxide (CO2) and other greenhouse gases (GHGs) have prompted research into techniques for their capture and separation, including membrane separation, chemical looping, and cryogenic distillation. ... -
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 ... -
Modified zeolite/polysulfone mixed matrix membrane for enhanced CO2/CH4 separation
( MDPI AG , 2021 , Article)In recent years, mixed matrix membranes (MMMs) have received worldwide attention for their potential to offer superior gas permeation and separation performance involving CO2 and CH4. However, fabricating defect-free MMMs ... -
Novel aluminum oxide-impregnated carbon nanotube membrane for the removal of cadmium from aqueous solution
( MDPI AG , 2017 , Article)An aluminum oxide-impregnated carbon nanotube (CNT-Al2O3) membrane was developed via a novel approach and used in the removal of toxic metal cadmium ions, Cd(II). The membrane did not require any binder to hold the carbon ... -
Novel electrodeposited Ni-B/Y 2 O 3 composite coatings with improved properties
( MDPI AG , 2017 , Article)Ni-B/Y 2 O 3 composite coatings were developed through an electrodeposition process to study the effect of addition of Y 2 O 3 particles on structure, surface, thermal, mechanical, and anticorrosion properties of Ni-B ... -
Optimum design of n continuous stirred-tank bioreactors in series for fermentation processes based on simultaneous substrate and product inhibition
( MDPI AG , 2021 , Article)Optimization of the continuous fermentation process is important for increasing efficiency and decreasing cost, especially for complicated biochemical processes described by substrate and product inhibition. The optimum ... -
Paper mill sludge as a source of sugars for use in the production of bioethanol and isoprene
( MDPI AG , 2020 , Article)Paper mill sludge (PMS) solids are predominantly comprised of cellulosic fibers and fillers rejected during the pulping or paper making process. Most sludges are dewatered and discharged into landfills or land spread at a ... -
Polydopamine functionalized graphene oxide as membrane nanofiller: Spectral and structural studies
( MDPI AG , 2021 , Article)High-degree functionalization of graphene oxide (GO) nanoparticles (NPs) using polydopamine (PDA) was conducted to produce polydopamine functionalized graphene oxide nanoparticles (GO-PDA NPs). Aiming to explore their ... -
Potential use of treated wastewater as groundwater recharge using gis techniques and modeling tools in dhuleil-halabat well-field/jordan
( MDPI AG , 2021 , Article)Due to limited rainfall and precipitations, different developing countries depend on groundwater (G.W.) resources to challenge water scarcity. This practice of continuous and excessive G.W. pumping has led to severe water ... -
Recycled polyethylene/paraffin wax/expanded graphite based heat absorbers for thermal energy storage: An artificial aging study
( MDPI AG , 2019 , Article)An artificial aging study of novel heat absorbers based on phase change materials (PCMs) prepared from recycled high-density polyethylene (HDPE), paraffin wax (PW), and expanded graphite (EG) was investigated. The optimal ... -
Review of membranes for helium separation and purification
( MDPI AG , 2017 , Article Review)Membrane gas separation has potential for the recovery and purification of helium, because the majority of membranes have selectivity for helium. This review reports on the current state of the research and patent literature ... -
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 ... -
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-objective optimization of a dual-chamber microbial fuel cell operating in continuous-flow mode at steady state
( MDPI AG , 2020 , Article)Microbial fuel cells (MFCs) are a promising technology for bioenergy generation and wastewater treatment. Various parameters affect the performance of dual-chamber MFCs, such as substrate flow rate and concentration. ...