Results 81 to 90 of about 82,480 (289)
Surface-functionalization of PDMS for potential micro-bioreactor and embryonic stem cell culture applications [PDF]
, 2013 This study presents a novel and inexpensive method to prepare a disposable micro-bioreactor for stem cell expansion. The micro-bioreactor was fabricated in the form of a fixed bed bioreactor with a microchannel reactor bed.
Chan, P +4 more
core +2 more sources
Non‐Destructive Hydrophobic Engineering of Inverse Catalysts for Methanol Synthesis from CO2
Advanced Science, EarlyView.In this study, we report a non‐destructive hydrophobic modification strategy for ZrO2/Cu catalyst through physical mixing with PDVB. The optimized ZrO2/Cu‐PDVB catalyst achieves a methanol space‐time yield of 920.10 mgCH3OH gcat−1 h−1 under mild conditions, outperforming the unmodified catalyst by 30 %.
Dingran Wang +7 more
wiley +1 more source
Improvement of Hydrodynamics Performance of Naphtha Catalytic Reforming Reactors Using CFD [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2014 Due to high applicability of the fixed bed catalytic naphtha reforming reactors, hydrodynamic features of this kind of reactors with radial flow pattern are improved in this work by utilising computational fluid dynamics technique.
Rasool Mohammadikhah +3 more
doaj
Bulletin of Chemical Reaction Engineering & Catalysis, 2008 A one-dimensional mathematical model was developed to simulate the performance of catalytic fixed bedreactor for carbon dioxide reforming of methane over Rh/Al2O3 catalyst at atmospheric pressure.
New Pei Yee +2 more
doaj +1 more source
Ultra-clean hydrogen production by ammonia decomposition
Journal of King Saud University: Engineering Sciences, 2018 A rigorous heterogeneous mathematical model is used to simulate a cascade of multi-stage fixed bed membrane reactors (MSFBMR) with inter-stage heating and fresh sweep gas for the decomposition of ammonia to produce high purity hydrogen suitable for the ...
M.E.E. Abashar
doaj +1 more source
Advanced Energy and Sustainability Research, EarlyView.Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira +4 more
wiley +1 more source
Effects of Purification on the Hydrogen Production in Biomass Gasification Process
Chemical Engineering Transactions, 2017 Energy from renewable sources such as biomass are expected to complement the energy derived from fossil fuel resources due to its abundant reserves and relatively low price compared with other energy sources.
M.B. Muslim, S. Saleh, N.A.F.A. Samad
doaj +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) +2 more
core
Analysis of products from the pyrolysis of plastics recovered from the commercial scale recycling of waste electrical and electronic equipment [PDF]
, 2007 Three plastic fractions from a commercial waste electrical and electronic equipment (WEEE) processing plant were collected and investigated for the possibility of recycling them by batch pyrolysis. The first plastic was from equipment containing cathode
Hall, W.J., Williams, P.T.
core +1 more source
3D investigation and modeling of the geometric effects on porosity in packed beds
AIChE Journal, EarlyView.Abstract In porous beds, physical boundaries restrict particle arrangement, leading to inhomogeneous porosity. This paper reports on the porosity profiles that are the result of geometric effects on monodisperse packed beds in cylindrical and cubic arrangements. Special focus is given to the influence of edges and corners in cubic geometries.
Bastian Oldach +3 more
wiley +1 more source