Showing papers in "Chemical Engineering Science in 2015"

TL;DR: In this paper, a review of recent developments in the discrete element method (DEM) to model particles of non-spherical shape is presented, including shape representation, algorithms for the efficient detection of contacts and the determination of contact parameters.

TL;DR: This review provides an overview of drug release mechanisms and various nanocarriers with a specific emphasis on approaches to control the drug release kinetics.

TL;DR: The goal is to review this field, which allows scientists and engineers to learn about the EHDA technique and how it might be used to create, process, and assemble micro-/nanoparticulate materials with unique and intriguing properties.

TL;DR: In this paper, the effect of functional group substitution at the ligand benzene ring, alcohol chain length, particle size and contents of defects on the catalytic activity of Zr-containing metal-organic frameworks (MOFs) was studied in detail.

TL;DR: In this paper, a review of the continuous metal-organic framework (MOF) membranes supported by inorganic substrates and polymer substrates is presented, and the MOF-based mixed matrix membranes are employed as fillers to fabricate mixed matrix membrane.

TL;DR: In this paper, a comprehensive CFD-DEM numerical model has been developed to simulate the biomass gasification process in a fluidized bed reactor, which uses an Eulerian method for gas phase and a discrete element method (DEM) for particle phase.

TL;DR: In this paper, a review of metal organic framework membranes which have demonstrated ability to separate carbon dioxide from different light gases is presented, and the advantages of using MOFs in mixed matrix membranes and improvements in gas separation performances with the MOF based mixed matrix membrane are presented.

TL;DR: In this paper, the performance of various functionalized variations of UiO-66 was investigated for ammonia removal from air using powder X-ray diffraction (PXRD) patterns.

TL;DR: In this paper, the intriguing properties of clathrate hydrates are discussed, as well as their environmental impact and prospects for energy exploitation in industry, especially in terms of microscopic mechanisms of thermal conduction, nucleation, hydrogen storage and prospect for carbon sequestration.

TL;DR: In this paper, a full three-dimensional fixed-bed catalytic dry reforming of methane (DRM) over rhodium was simulated with a detailed reaction mechanism, where the reaction mechanism determines regions with catalyst deactivation by carbon deposition.

TL;DR: In this article, a set of closures for two-fluid modelling of adiabatic bubbly flows has been defined as baseline model, which provides a common basis for further improvement and development.

TL;DR: In this paper, a systematic investigation on the promotional effect of base in metal-catalysed hydrogenolysis of lignin model compounds and organosolv Lignin was presented.

TL;DR: In this paper, the authors used the NIPS wet-process to obtain low-fouling composite membranes with TiO 2 nanoparticles entrapped in PVDF membranes.

TL;DR: In this article, the most recent developments around carbon support structure effect, cobalt intrinsic properties and promoter effect on carbon supported cobalt catalyst for Fischer-Tropsch (FT) synthesis are presented.

TL;DR: In this article, a new strategy by using magnesium oxide as seeds was developed to synthesize a dense, defect-free Mg-MOF-74 membrane with hydrogen-selectivity.

TL;DR: In this paper, the authors present an integrated framework and software platform that enables the use of model-based tools in design, operational optimisation and advanced control studies for process systems engineering applications.

TL;DR: Developing nanoparticle systems designed for targeted drug delivery, e.g., treating tumors in humans, requires clear understanding of the uniqueness of nanoparticles, as well as limitations and causes of failures in clinical applications.

TL;DR: In this article, a three-phase axisymmetric numerical model based on Volume of Fluid-Continuum Surface Force (VOF-CSF) model was developed to perform parametric analysis of compound droplet production in three phase glass capillary devices that combine co-flow and countercurrent flow focusing.

TL;DR: In this paper, the authors demonstrate from molecular dynamics insights that the nanoporous graphene membranes with appropriate pore size and geometry can achieve high permeability and selectivity for separating CH 4 /CO 2, CH 4/H 2 S and CH 4 4 /N 2 mixtures.

TL;DR: In this article, a series of aqueous amine blends incorporating monoethanolamine, N,N-dimethylethanolamine (DMEA), N, N-diethylethanolate (DEEA), and 2-amino-2-methyl-1-propanol (AMP) as solvent components were evaluated.

TL;DR: In this article, the effects of the confinement of microchannels and the fluid flow on bubble formation and breakup dynamics are highlighted, and the key issues for the scaling-up of bubble generation in microfluidic devices are demonstrated.

TL;DR: The method is based on orientation discretization and pre-calculated databases and can be applied to any shaped particles in a general scheme and it is used to simulate the packing and flow of different shaped non-spherical particles.

TL;DR: In this article, the authors presented an easy-to-use method based on a Semenov number optimization (SNO) to compute optimal axial temperature profiles in single-stage fixed-bed reactors that account for kinetic and thermodynamic limitations simultaneously, and thus result in maximized yield for a fixed reactor length.

TL;DR: In this article, the COSMO-RS model is used to evaluate the effect of anions and cations and suggest potential ionic liquids (ILs) meeting the criterion, and then the solubility and extractive ability of candidate ILs are investigated by experiments to further confirm their suitability.

TL;DR: This proposed Eulerian–Lagrangian numerical model is the first report that successfully couples the DEM to a VOF solver with non-trivial wall boundaries, thereby highlighting its potential in accurately modeling complicated gas–solid–liquid flows.

TL;DR: In this article, the authors give an overview of research studies that deal with bubble column hydrodynamics at elevated pressures and a recommendation for further research concerning this topic is provided as well.

TL;DR: In this paper, a review summarizes the recent computational studies on cellulose pretreatment, including cellulose dissolution in neat ionic liquids and IL/solvent mixtures, as well as cellulose regeneration by anti-solvents.

TL;DR: In this paper, a previously reported Zr-MOF UiO-66(Zr)-(COOH) 2 with optimal features for CO 2 capture was ionized by neutralization with aqueous MOH solutions.

TL;DR: In this paper, a novel solvent resistant nanofiltration membranes with enhanced rejection ability are synthesized by embedding graphene oxide (GO) sheets into polyethyleneimine (PEI) matrix, using polyacrylonitrile (PAN) ultrafiltration membrane as support layer.

TL;DR: In this article, a series of mixed-linker zirconium-based metal-organic frameworks (Zr-MOFs) have been synthesized in one-pot reactions.