Results 71 to 80 of about 83,642 (311)

Comparative Study of Fixed and Fluidized Bed Reactor for Zirconium Tetrachloride Production [PDF]

مجله علوم و فنون هسته‌ای, 2018
In this research, zirconium tetrachloride production is studied as one of the stages of zirconium production. Basically, there are two main methods for producing zirconium tetrachloride from zirconium dioxide: The first and older method used in Iran is ...
M. R Ghasemi, S. M Ghoreishi, M Ghannadi Maragheh, M. H Jazini   +3 more
doaj  

Reinforcing Oxygen Activation of Spinel Oxide via Mn─O Covalency Engineering for VOCs Oxidation

Advanced Science, EarlyView.
A MnCo spinel catalyst with weakened Mn─O covalency was synthesized via a hard‐template method. The reduced Mn─O covalency facilitates localized electron redistribution, promoting the activation of both molecular oxygen and lattice oxygen, and thereby enabling the efficient and complete oxidation of VOCs (ethyl acetate, toluene, and propane).
Gan Li, Ruochen Zhou, Qianqian Chen, Guobo Li, Xiang Tu, Fengbo Yu, Wenming Liu, Jian Ji, Honggen Peng   +8 more
wiley   +1 more source

Effect of partial wetting on liquid/solid mass transfer in trickle bed reactors [PDF]

, 2007
The wetting efficiency of liquid trickle flow over a fixed bed reactor has been measured for a wide range of parameters including operating conditions, bed structure and physico-chemistry of liquid/solid phases.
Baussaron, Loïc, Boyer, Christophe, Delmas, Henri, Julcour-Lebigue, Carine, Wilhelm, Anne-Marie   +4 more
core   +2 more sources

Reaction‐Induced Reversible Reconstruction Enhanced Ni‐MgO/CaO Dual Functional Material for Stable CO2 Capture and In Situ Conversion

Advanced Science, EarlyView.
A highly dispersed NiO‐MgO solid solution (MgxNi1‐xO) is created in a hierarchically porous Ca‐based matrix to protect Ni and CaO nanoparticles against carbon deposition and sintering. Owing to the reversible reconstruction of MgxNi1‐xO, this superior structure is self‐regenerative in the calcium looping dry reforming of methane process, thereby ...
Hao Xu, Chen Hou, Jiawei Zhong, Chuande Huang, Wei Wei, Jiawei Hu   +5 more
wiley   +1 more source

Kajian Kinerja Fixed Bed Dan Suspended Growth Reactors Dalam Penyisihan Ammonium Konsentrasi Tinggi [PDF]

, 2017
Ammonium merupakan bentuk primer dari penyebaran polutan nitrogen dalam badan air dan menyebabkan peningkatan kebutuhan oksigen dan mengakibatkan eutrofikasi.
Samudro, G. (Ganjar), Septiani, R. W. (Retno), Sudarno, S. (Sudarno)   +2 more
core  

Large scale production of multi-walled carbon nanotubes by fluidized bed catalytic chemical vapor deposition : a parametric study [PDF]

, 2007
A parametric study investigating the impact of temperature, run duration, total pressure, and composition of the gaseous phase on the catalytic growth of multi-walled carbon nanotubes (MWNT) has been performed.
Bernard, Daniel, Caussat, Brigitte, Gaillard, Patrice, Kalck, Philippe, Kihn, Yolande, Morançais, Aurore, Plee, Dominique, Serp, Philippe   +7 more
core   +2 more sources

Physics‐Constrained Constitutive Learning of Rate‐Limiting Timescales for Efficient Hydrogen‐Based Direct Reduction for Green Steel Making

Advanced Science, EarlyView.
A conversion‐resolved constitutive framework is developed for the hydrogen‐based direct reduction of iron oxide pellets. Effective reaction and transport timescales are inferred directly from measured trajectories and mapped against operating conditions, pellet architecture, and composition. The analysis reveals how late‐stage transport control emerges
Anurag Bajpai, Barak Ratzker, Pasquale Cavaliere, Dierk Raabe   +3 more
wiley   +1 more source

Tar cracking and reforming in fluidized-bed biomass gasification conditions [PDF]

, 2011
In this work realized by CIRAD, a specially designed crossed fixed-bed reactor was used to characterize thermal and catalytic tar reduction due to cracking and reforming reactions in fluidized-bed gasification conditions.
Commandre, Jean-Michel, Nitsch, Xavier
core  

Dual‐Stage Microneedle Patch With Lipid Droplet‐Mediated ‘Capture‐Kill’ and Sustained Release for Enhanced Wound Healing

Advanced Science, EarlyView.
We report a lipid‐droplet‐engineered, gallium‐loaded sonodynamic therapeutic platform (LDTG) incorporated into a bilayer microneedle (MN) patch co‐delivering all‐trans retinoic acid (ATRA), termed LDTG A‐MNs, for synergistic antibacterial therapy and accelerated wound repair.
Peng Jiang, Meijun Jiang, Jiapeng Lei, Wen Zhang, Huiyuan Yang, Xueyang Wang, Siyu Zhang, Qiongfang Ruan, Shuhua Liu, Wei Li   +9 more
wiley   +1 more source

Modeling and simulation of the startup of the coupling reactor for Industrial-Scale production of Diethyl oxalate

Journal of King Saud University: Engineering Sciences
A one-dimensional homogeneous reactor model was developed to simulate the dynamic behavior of a fixed-bed reactor for a catalytic coupling reactor of carbon monoxide and ethyl nitrite to diethyl oxalate.
Mohammad Dudin, Deeb Abu Fara, Mamdouh Allawzi   +2 more
doaj   +1 more source