Showing papers in "Chemical Engineering Science in 2016"

TL;DR: In this article, the authors provide a review of the computational fluid dynamics (CFD) work in the simulation of dense particulate reaction system (DPRS) in many engineering fields such as energy conversion, petrochemical processing, mineral processing, chemical engineering and pharmaceutical manufacturing.

TL;DR: In this paper, a novel thin-film composite (TFC) membrane for forward osmosis (FO) application was developed by incorporating graphene oxide (GO) nanosheets into the polyamide (PA) selective layer.

TL;DR: In this paper, the authors comprehensively review recent findings on gasification kinetics related to the reaction mechanism, the effects of the experimental procedure on the overall reaction, and methods to evaluate kinetic models.

TL;DR: In this paper, the authors used polydopamine (PDA) as a novel covalent linker to enhance the stability of asymmetric graphene oxide (GO) membranes for seawater desalination.

TL;DR: In this article, a novel bimetallic MIL-101(Cr, Mg) was successfully synthesized for the first time by doping Mg during the solvothermal synthesis, and then characterized.

TL;DR: Ni(bdc)(ted) 0.5 as discussed by the authors was synthesized with double ligands (bdc and ted) by a hydrothermal method and its C 2H 6 and C 2 H 4 isotherms were subsequently measured.

TL;DR: In this article, a coarse-grained constitutive model is proposed to account for unresolved gas-particle structures via sub-grid corrections, and new closures for the filtered inter-phase drag and stresses in the gas and particle phases are constructed from highly-resolved 3D simulations of gasparticle flows.

TL;DR: In this article, the influence of the counter-current mode on bubble column hydrodynamics was investigated using a variety of experimental techniques, including holdup, gas disengagement, image analysis and optical probe measurements.

TL;DR: In this article, the catalytic reaction for the synthesis of 5-hydroxymethylfurfural (HMF) from pretreated biomass/isolated cellulose using green processes is systematically summarized and the bio-toxicity of synthesized chemicals connected into different functional groups have been summarized to meet the criteria of the green technology for commercialization.

TL;DR: In this article, a computational fluid dynamics (CFD) model of an industrial-scale steam methane reforming reactor (reforming tube) used to produce hydrogen was developed and three different feedback control schemes were evaluated to drive the area-weighted average hydrogen mole fraction measured at the reforming tube outlet ( x ¯ H 2 outlet ) to a desired set-point value under the influence of a tube-side feed disturbance.

TL;DR: In this paper, three commercial metal-Organic Frameworks (HKUST-1, MIL-53(Al) and ZIF-8) were modified by wetness impregnation of tetraethylenepentamine (TEPA) molecules.

TL;DR: A coarse-grained discrete particle method defined by the energy-minimization multi-scale (EMMS) model is deployed for high-resolution simulations of fluidized beds, with the gas- and solid-phase equations solved concurrently by CPUs and GPUs in a heterogeneous supercomputing system.

TL;DR: In this article, the authors studied cake filterability and compressibility as a function of the particle shape and particle size distribution (PSD) and quantitatively assessed the impact of the PSD and the shape.

TL;DR: In this paper, the authors compared a fed-batch and a continuously operated platform process based on a cost of goods (CoG) calculation for a production capacity of 200kgAPI/a.

TL;DR: In this article, the coarsening of the fluid and particle phases has been investigated in fine-grained Euler-Euler simulations of gas-fluidization of uniformly sized particles in three-dimensional periodic domains.

TL;DR: In this article, the authors used the shrinkage trace of a thermodynamic software FactSage™ to reveal the relation between liquid phase formation and ash fusion behaviors, and proposed a sintering-fusion-dissolving mechanism according to the fusion behavior.

TL;DR: In this article, the authors studied the dissociation kinetics of natural and artificial methane hydrate under non-isothermal conditions, taking into account heat and mass transfer, gas filtering inside the granules and porous characteristics (size and density of pores).

TL;DR: In this paper, the authors used a grand canonical Monte Carlo simulation to investigate the displacement of shale gas by CO 2 and the sequestration of CO 2 simultaneously in a modeled shale matrix at different geological depths from 1 to 4 km, where the shale is modeled by inorganic clay mineral and organic matter.

TL;DR: A series of CuO-Fe 2 O 3 -CeO 2 catalysts with various CeO 2 doping were prepared via the homogeneous precipitation method, characterized and mechanically mixed with HZSM-5 as mentioned in this paper.

TL;DR: In this paper, a porous carbon-based material C-PDA (Carbonized Polydopamine Adsorbent) was prepared using one-step synthesis method for adsorption separation of C 2 H 6 /C 2 H 4, and then characterized by N 2 adsoreption at 77 K, FTIR, XPS and TG.

TL;DR: The kinetics of the reaction were found to be consistent with a mechanism in which adsorbed CO2 dissociated to adsormed CO and O on the surface of the catalyst with the rate-limiting step being the subsequent dissociation of adsorbing CO.

TL;DR: In this article, the combined approach of discrete element method (DEM) and computational fluid dynamics (CFD) is extended to study the heat transfer in packed and fluidized beds of ellipsoids.

TL;DR: In this paper, high quality ZIF-8 membranes were prepared through hydrothermal synthesis under the partial self-conversion of sputter-coated ZnO layer on porous α-alumina supports.

TL;DR: In this paper, the reduction of CO2 to methanol in the presence of effective and stable MWCNTs impregnated with Cu2O was evaluated in a two-component polycarbonate electrochemical cell.

TL;DR: In this paper, an attempt has been made to investigate the complex flow and temperature pattern in such a short shell and tube type heat exchanger, with and without baffles in the shell side.

TL;DR: In this paper, a new class of alkali-bonded ceramics, called geopolymer materials, were prepared in monolith porous form, in order to investigate the adsorptive performances of CO 2 and light gases (CH 4 and N 2 ) by means of a volumetric method in the sub-atmospheric pressure range.

TL;DR: In this paper, the authors investigated microfluidic solvent extraction of rare earth elements (REEs) from a leached mixed rare earth oxide (REO) mineral concentrate using a phosphorus-based cationic exchange extractant (Cyanex® 572).

TL;DR: In this article, the fabrication of natural polymer cellulose derived hydroxyethyl cellulose (HEC) based nanostructured scaffolds with uniform fiber morphology through electrospinning was reported.

TL;DR: In this article, the authors present a set of experiments conducted in a high-pressure sapphire autoclave apparatus using 10 to 70% water in partially-dispersing mineral oil at three fixed rotational speeds: 300, 500 and 900 RPM.

TL;DR: In this article, a double loop staged fluidized bed system operated with solid amine sorbents is proposed and evaluated for temperature swing adsorption (TSA) CO2 separation from flue gas streams.