Results 91 to 100 of about 76,488 (262)

The role of pellet thermal stability in reactor design for heterogeneously catalysed chemical reactions [PDF]

open access: yes, 1991
For exothermic fluid-phase reactions, a reactor which is cooled at the wall can exhibit multiplicity or parametric sensitivity. Moreover, for heterogeneously catalysed exothermic fluid-phase reactions, each of the catalytically active pellets in the ...
Westerterp, K.R., Wijngaarden, R.J.
core   +4 more sources

CATALYTIC WET AIR OXIDATION OF PHENOL USING METAL MODIFIED ZEOLITIC VOLCANIC TUFFS

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2015
zeolitic volcanic tuff modified with metals (Cu, Ce, Co, Ni, Zn, Mn and Fe) by ionic exchange was tested as catalyst in wet air oxidation process for phenol removal from aqueous solutions.
Raluca PLEŞA CHICINAŞ   +3 more
doaj  

Surface-functionalization of PDMS for potential micro-bioreactor and embryonic stem cell culture applications [PDF]

open access: yes, 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

Methane Pyrolysis Performance in Catalytic Molten Media for Hydrogen Production From the Perspective of Bubble Column Reactor Design and Configuration

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In the hydrogen production routes from natural gas (methane), methane pyrolysis offers a cleaner option than the established steam methane reforming by producing CO2‐free hydrogen. However, in fixed bed reactors over solid catalysts, this technology experiences rapid catalyst deactivation due to carbon (coke) deposition encapsulating its ...
Muhammad Irfan Fakarudin   +3 more
wiley   +1 more source

Two-stage gasification: fine characterisation of wood chips pyrolysis step in a continuous fixed bed reactor [PDF]

open access: yes, 2011
Two-stage gasification is a proven technology for combined heat and power generation, particularly as it enables the production of a high quality, virtually tar-free gas.
Commandre, Jean-Michel   +4 more
core  

Technobiological Pathways for High‐CO₂ Capture Using Micro‐/Macroalgae: Genetic Engineering, Process Automation, and Value‐Added Bioproducts

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Greenhouse gas (GHG) emissions have emerged as one of the most critical drivers of climate change; this is primarily due to high concentrations and long atmospheric life of carbon dioxide (CO2). For a significant amount of time, various biological processes such as microalgal cultivation, cyanobacterial systems, photosynthetic microorganisms ...
Sadhana Semwal, Harish Chandra Joshi
wiley   +1 more source

N-Doped graphene fiber anchored Pd nanoparticles as a fixed-bed catalyst for continuous-flow reduction of N-containing unsaturated compounds

open access: yesGreen Synthesis and Catalysis
Catalytic fixed-bed is an efficient and facile system for scalable organic synthesis due to its continuous and fast flow operation process. As a key unit in the fixed-bed system, catalytically active packing materials are required to possess some ...
Shuaihu Du, Zhuoyuan Bi, Jiangbo Xi
doaj   +1 more source

Hydrogen production from cassava in anaerobic fixed bed reactor

open access: yesRevista Produção e Desenvolvimento, 2016
The use of agro-industrial waste for the production of hydrogen has shown a very promising trend, because its improper disposal creates environmental problems.
Andressa Nóe Nunes   +1 more
doaj   +1 more source

Hydrogen production by sorption-enhanced steam reforming of glycerol [PDF]

open access: yes, 2009
Catalytic steam reforming of glycerol for H(2) production has been evaluated experimentally in a continuous flow fixed-bed reactor. The experiments were carried out under atmospheric pressure within a temperature range of 400-700 degrees C.
Blakeman, N   +7 more
core   +1 more source

Effect of Temperature and Atmosphere on Agglomeration of Bed Particles in a Bubbling Fluidised Bed Burning Na‐Enriched Coal

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Agglomeration of bed materials during circulating fluidised bed (CFB) combustion or gasification of high‐alkali fuel is a practical challenge in industrial practice. This work investigates experimentally the effect of temperatures (700°C–900°C) and atmosphere (air equivalence ratios 1.61–0.53) on agglomeration in a lab‐scale bubbling fluidised
Zipeng Guo   +4 more
wiley   +1 more source

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