Showing papers in "Chemical Engineering Science in 2017"

TL;DR: In this paper, a review of the synthesis and properties of high energy density (HED) liquid fuels along with challenges appearing especially in the past decade is presented, where the currently used multi-cyclic HED fuels are introduced first with a focus on more efficient and greener synthesis routes.

TL;DR: A review of microflow extraction from its more basic form to its utilizations can be found in this paper, where the authors introduce the progress of research into fluidic dynamics and mass transfer on the microscale.

TL;DR: In this article, a mixed anionic collector sodium oleate (NaOL) and cationic collector dodecyl ammonium chloride (DTAC) demonstrate high selectivity for the flotation of spodumene from feldspar, and the optimal molar ratio of NaOL and DTAC is 9:1.

TL;DR: In this article, a new model for predicting hydrate deposition is proposed, which considers hydrate formation from both liquid film and liquid droplets, and an effective deposition ratio is introduced to calculate the deposition of hydrate particles from the gas phase by considering the influence of liquid film atomization.

TL;DR: In this article, the effects of various transition metallic substituents on the activation of peroxymonosulfate (POMS) in chemical oxidation reactions were investigated and LaCoO 3 was found to exhibit the highest catalytic activity, followed by LaNiO 3, LaCuO 3 and then LaFeO 3.

TL;DR: In this paper, a review and discussion of molecular dynamics (MD) studies conducted on the thermophysical properties of nanofluids, considering the thermal conductivity and shear viscosity as two important factors for the industrial application of nanophotonics, is presented.

TL;DR: In this article, a relative permeability model for gas-water two phase flow in water-wet nanoporous media is proposed based on the continuity equation with modified non-slip boundary in a single nanotube and the pore size distribution (PSD) of the media.

TL;DR: In this article, the liquid flow in the cavity zone of a rotating packed bed (RPB) was studied under different experimental conditions using photographs taken by a high-speed camera Two typical liquid flow patterns and liquid disintegrating modes were observed A flow pattern transition criterion for the transition of ligament flow to droplet flow was presented Effects of rotational speed, liquid initial velocity, outer packing radius, liquid viscosity, and liquid surface tension on the average droplet diameter and droplet size distribution were investigated Furthermore, a correlation of the average DR diameter was proposed

TL;DR: In this article, a 3D computational fluid dynamics (CFD) simulation of endothermic steam methane reforming in a random packed bed of 807 spherical catalyst particles at a tube-to-particle diameter ratio of N = 5.96 with constant wall heat flux is presented.

TL;DR: In this paper, the authors investigated the dual effect of viscosity on gas holdup and flow regime transition as well as bubble size distributions in a large-diameter and large-scale bubble column.

TL;DR: In this article, a series of phenolic ILs containing different cations were synthesized and investigated for the absorption of H 2 S and CO 2 in this work, and the results indicated that [TMGH][PhO] is a promising candidate for the selective sweetening of natural gas.

TL;DR: In this article, the authors reported the inhibition effect of amino acids on the carbon dioxide hydrate phase equilibrium condition using the isochoric T-cycle method in the pressure range of 253-40MPa.

TL;DR: In this article, the characterization methods of electrostatics and the mechanisms of charge generation and distribution in fluidized beds are presented, followed by an account of the interplay between the hydrodynamics and electrostatic phenomena.

TL;DR: In this article, asphalt-based activated carbons (A-ACs) with high C 2 H 6 /C 2 H 4 adsorption capacity and selectivity were reported.

TL;DR: In this article, a computational fluid dynamics (CFD) model of an industrial-scale steam methane reformer that consists of 336 reforming reactors, 96 burners and 8 flue gas tunnels is presented.

TL;DR: In this paper, the authors investigated the initial rates of absorption and desorption of primary, secondary and tertiary aqueous alkanolamine solutions with different numbers of hydroxyl groups and investigated pK a, equilibrium solubility of CO 2, heat duty (Q reg ) for solvent regeneration, and heat of CO2 absorption (ΔH abs ).

TL;DR: In this article, the design of temperature swing adsorption (TSA) cycles aimed at recovering the heavy product at high purity is investigated by model-based design and applied to the capture of CO2 from flue gases.

TL;DR: In this article, a computation-ready, experimental covalent organic framework (CoRE COF) database was constructed and provided, which contains 187 COFs with disorder-free and solvent-free structures.

TL;DR: In this article, the effect of cyclone arrangements on the gas-solid flow dynamics in the three-dimensional full-loop CFB is investigated by the computational fluid dynamics coupled with discrete element method (CFD-DEM).

TL;DR: In this article, a volume-of-fluid (VOF) based simulation of coupled transport and reaction processes in micro-scale segmented flow microreactors is presented, which accurately captures the circulation patterns and micron-scale wetting film of the segmented flows.

TL;DR: In this paper, a non-noble bimetallic nanocatalysts for the selective hydrogenation of phenol with cyclohexanol as the sole product was reported.

TL;DR: In this article, a fully resolved direct numerical simulation of flow and heat transfer is presented for slender randomly packed bed reactors, where the flow and temperature field are solved over a non-body fitted, non-conformal Cartesian computational domain.

TL;DR: In this paper, the authors describe catalytic consequence of hydrothermal liquefaction (HTL) of Dunaliella tertiolecta over carbon nanotubes (CNTs) supported by metals catalysts to produce bio-oil.

TL;DR: In this article, a catalyst screening comprising zeolites and ion exchange resins for the synthesis of oligomeric oxymethylene dimethyl ethers (OME) from methanol (MeOH) and formaldehyde (FA) has been carried out.

TL;DR: In this article, a comprehensive review of particle clustering in CFB risers is presented, focusing on the performance of gas-solid fluidized beds in terms of hydrodynamics and overall performance.

TL;DR: The proposed two-level no-split HEN synthesis hybrid method is able to present near-optimal solutions by more efficiently exploring the search space and using simple moves for local searches.

TL;DR: In this article, the authors investigated the heat duty of tri-solvent blends containing AMP-PZ-MEA and the individual contribution of desorption heat, sensible heat, and heat of vaporization to heat duty.

TL;DR: In this article, the CO2 equilibrium solubility in 1-dimethylamino-2-propanol (1DMA2P) solution was determined as a function of 1DMA 2P concentration, temperature, and CO2 partial pressure, and the data used to fit the correlations for K2 using Kent-Eisenberg, Austgen, Li-Sheng and Hu-Chakma models.

TL;DR: In this article, the highlights of different reactors (passive and active) used for treating sulfate and metal containing wastewater, factors affecting the process parameters, effect of different electron donors, merits and demerits of various reactors are emphasized.

TL;DR: The recent advances in making micro- and nanostructures for pharmaceutical applications, including microparticles and microcapsules for controlled release, nanoparticles for drug delivery and microgels for 3D cell culture are introduced.