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Showing papers in "Chemical Engineering Science in 2018"


Journal ArticleDOI
TL;DR: In this article, modified biopolymer adsorbents on the basis of polysaccharides (derived from chitin, chitosan, and starch) have been proposed as new materials for the removal of Cu2+ ions from wastewater.

187 citations


Journal ArticleDOI
TL;DR: In this paper, a review of the latest trends and advancements in microstructured reactors is presented, focusing on the fabrication, commercial aspects, design principles, and cutting-edge applications of microreactors.

183 citations


Journal ArticleDOI
TL;DR: In this paper, activated ginkgo leaf-derived carbons were investigated as porous cheap biomass carbons with utility as supercapacitor electrode materials in the acid electrolyte.

182 citations


Journal ArticleDOI
TL;DR: In this paper, an iron-based metal-organic framework PCN-250 was used as a C2H6-selective adsorbent for efficient C 2H6/C2H4 purification.

161 citations


Journal ArticleDOI
TL;DR: In this paper, an anionic surfactant was synthesized from coconut oil as an alternative during oil recovery, and the synthesized sodium ethyl ester sulfonate (SEES) was characterized by FT-IR, 1 H NMR and TGA analyses.

128 citations


Journal ArticleDOI
Xi Gao, Tingwen Li1, Avik Sarkar2, Liqiang Lu, William A. Rogers 
TL;DR: In this paper, an enhanced filtered drag model along with other different drag models derived from different methods for three-dimensional two-fluid model simulations of gas-solid fluidized beds of Geldart A particles covering a broad range of fluidization regimes.

126 citations


Journal ArticleDOI
TL;DR: A hybrid methodology to detect and diagnose the faults in dynamic processes based on principal component analysis with T2 statistics and a Bayesian network that can diagnose the root cause of the process fault precisely as well as identify the fault propagation pathway.

113 citations


Journal ArticleDOI
TL;DR: In this article, an analytical representation for the prediction of the molar Gibbs free energies of gaseous diatomic molecule substances was established. But the present model is related to three molecular constants and away from the need of lots of experimental spectroscopy data.

108 citations


Journal ArticleDOI
TL;DR: In this paper, mesoporous SBA-15 synthesized by two different methods and MCM-41 were used as supports for Ni and Ni-Ce catalysts applied in CO2 methanation reaction.

103 citations


Journal ArticleDOI
TL;DR: In this paper, an explicit representation of molar entropy for gaseous substances was established based on the improved Rosen-Morse oscillator for describing the internal vibration of a molecule, using the dissociation energy, equilibrium internuclear distance and harmonic vibrational frequency.

101 citations


Journal ArticleDOI
TL;DR: In this paper, the photocatalytic degradation process fits into first-order kinetics for most of the operational parameters, while follows zero-order ketics for the condition of high dye concentration.

Journal ArticleDOI
TL;DR: In this article, the authors present a summary of the recent progress on the transport and reaction processes with ionic liquids in microreactors, and propose new correlations considering both shear and inertial forces to predict the flow regime transitions in a wide range of fluid viscosity.

Journal ArticleDOI
TL;DR: In this paper, molecular dynamics simulations are employed to investigate the aggregation behavior at the late stages of silica production in a colloidal solution to find new insights into the structures and dynamics of the produced aggregates and pores.

Journal ArticleDOI
TL;DR: In this article, a reduced-order model for advective-dispersive transport due to flow of a non-Newtonian power-law (or Ostwald-de Waele) fluid in a conduit with porous walls is derived through which the dispersion coefficient can be obtained.

Journal ArticleDOI
TL;DR: In this article, the authors optimize the extractive distillation process for separating the acetonitrile-water azeotropic mixture with ethylene glycol by using a multi-objective genetic algorithm for minimizing under purity constraints the total cost, the energy consumption and the separation efficiency.

Journal ArticleDOI
TL;DR: The effect of substrate heterogeneity on the metabolic response of P. chrysogenum in industrial bioreactors via the coupling of a 9-pool metabolic model with Euler-Lagrange CFD simulations is assessed.

Journal ArticleDOI
TL;DR: In this paper, a planar micro-combustor with combined baffle and bluff configuration for MTPV applications was investigated numerically, and it was shown that the novel combustor outperforms the similar configurations with only baffle or bluff, in terms of the flame stability, efficiencies, and emission.

Journal ArticleDOI
Chang Li1, Yexun Shi1, Xi Chen1, Dafang He1, Liming Shen1, Ningzhong Bao1 
TL;DR: In this article, a modified Hummers method was used to extract graphite oxide from flake graphite, and the reaction rate constant (k) and kinetic parameters were obtained after a systematic investigation of the influence of reaction temperature, concentration of sulfuric acid, and oxidizing agent on the oxidation, with the aid of R2 mathematical model.

Journal ArticleDOI
TL;DR: In this paper, drop formation in a microfluidic flow-focusing device (cross-junction) was studied in absence and presence of one of two ionic surfactants.

Journal ArticleDOI
TL;DR: In this paper, trisodium citrate was used to capillary-based continuous flow system to synthesize ultrasmall gold nanoparticles without strong capping agents, achieving an average enhancement factor (AEF) of 1.54 × 108.

Journal ArticleDOI
TL;DR: In this article, a numerical study of the inhomogeneous platinum loading within the catalyst layer (CL) and porosity inside the gas diffusion layer (GDL) at the cathode of a proton exchange membrane fuel cell is presented.

Journal ArticleDOI
TL;DR: In this paper, a detailed kinetic model for methanol synthesis from H 2, CO 2 and/or CO using a Cu/ZnO/Al 2 O 3 catalyst is proposed.

Journal ArticleDOI
TL;DR: Navas, Marisa Belen as mentioned in this paper, and Ronco, Dr. Jorge J. Ronco. Centro de Investigacion y Desarrollo en Ciencias Aplicadas, Universidad Nacional de la Plata, Argentina.

Journal ArticleDOI
TL;DR: In this paper, a stochastic apparent liquid permeability (ALP) model is developed to reveal water transport mechanisms in dual-wettability nanoporous shale based on the transport behavior in a single nanotube.

Journal ArticleDOI
TL;DR: In this paper, Luo et al. identified a new acidic feature in Cu/SSZ-13 catalysts, related to the presence of two distinct desorption peaks in the NH3-TPD profiles, and to the changes in their relative intensity in response to mild hydrothermal aging.

Journal ArticleDOI
TL;DR: In this article, heavy crude oil and formation brine collected from Xinjiang oilfield were used to prepare crude oil-in-water (O/W) emulsions.

Journal ArticleDOI
TL;DR: In this paper, a kinetic model was built in MATLAB® to better understand the mass transfer of CO2 into semi-aqueous MEA (MEA-NMP-water).

Journal ArticleDOI
TL;DR: In this paper, a review on the flow of free-flowing coarse particles inside silos is provided, focusing on flow patterns, stress distribution, velocity profiles, mass flowrate, Residence Time Distribution (RTD), and segregation inside the silo.

Journal ArticleDOI
TL;DR: In this paper, a new method for phase discrimination in particle image velocimetry was developed to overcome the problems caused by the presence of bubbles in the flow, which uses the pixels intensity information of each interrogation window, to identify if that window corresponds to liquid or bubble region.

Journal ArticleDOI
Jian Yu1, Chongqing Wang1, Long Xiang1, Yuanze Xu1, Yichang Pan1 
TL;DR: In this article, mixed matrix membranes (MMMs) fabricated from incorporating ZIF-8 nanocrystals into the polyvinyl acetate (PVAc) matrix exhibit significant improvement of propylene/propane permeability and selectivity as well as the operating stability.