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Poly(4-vinylpyridinium) perchlorate as an efficient solid acid catalyst for the chemoselective preparation of 1,1-diacetates from aldehydes under solvent-free conditions
Poly(4-vinylpyridinium) perchlorate Chemoselective Supported catalyst Acylation Aldehyde
2014/3/8
Poly(4-vinylpyridinium) perchlorate has been used as a supported, recyclable, environmentally-benign catalyst for the formation of acylals from aliphatic and aromatic aldehydes in good to excellent yi...
Aldol condensations of a variety of different aldehydes and ketones under ultrasonic irradiation using poly(N-vinylimidazole) as a new heterogeneous base catalyst under solvent-free conditions in a liquid-solid system Nader Ghaffari Khaligha, Taraneh Mihankhahb（图）
Ultrasound-assisted reaction Liquid-solid system Poly(N-vinylimidazole) Aldol condensation, Solvent-free
2013/12/5
An ultrasound-assisted aldol condensation reaction has been developed for a range of ketones with a variety of aromatic aldehydes using poly(N-vinylimidazole) as a solid base catalyst in a liquid-soli...
Synthesis of 2-Amino-4,6-diarylnicotinonitriles Using Silica-Bound N-Propyl Triethylenetetramine Sulfamic Acid as a Recyclable Solid Acid Catalyst（图）
silica-bonded N-propyl triethylenetetramine sulfamic acid 2-amino-4,6-diarylnicotinonitrile pyridine aldehyde solvent-free
2013/10/5
A simple and efficient procedure for the preparation of silica-bound N-propyl triethylenetetramine sulfamic acid (SBPTETSA) by the reaction of silica-bound N-propyl triethylenetetramine (SBPTET) with ...
Silica-Bonded N-Propyl Diethylenetriamine Sulfamic Acid as a Recyclable Solid Acid Catalyst for the Synthesis of α-Aminonitriles（图）
silica-bonded N-propyl diethylenetriamine sulfamic acid α-aminonitrile solid acid aldehyde
2013/10/7
Silica-bonded N-propyl diethylenetriamine sulfamic acid (SBPDSA) is employed as a recyclable catalyst to synthesize α-aminonitriles. These syntheses involved one-pot condensation of an aldehyde, an am...
Nanosized Unsupported and Alumina-Supported Ceria-Zirconia and Ceria-Terbia Solid Solutions for CO Oxidation（图）
ceria zirconia terbia alumina-support deposition coprecipitation CO oxidation
2013/10/13
Ceria-zirconia (CZ) and ceria-terbia (CT) and alumina-supported ceria-zirconia (CZA) and ceria-terbia (CTA) solid solutions were synthesized by coprecipitation and deposition precipitation methods, re...
Deactivation Modes of Solid Catalysts with Different Active Sites（图）
solid catalyst deactivation mode bifunctional catalyst active site
2013/10/15
An approach is suggested to distinguish different types of active sites responsible for different reactions on bifunctional catalysts. The model assumes a non-uniform vulnerability of active sites tha...
OPTIMIZATION OF 6-PENTYL-ALPHA-PYRONE PRODUCTION BY SOLID STATE FERMENTATION USING SUGARCANE BAGASSE AS RESIDUE
OPTIMIZATION 6-PENTYL-ALPHA-PYRONE PRODUCTION BY
2010/10/25
Solid state fermentation (SSF) has been used as a model for the study of metabolism and physiology of microorganisms. The aim of the present study was to enhance 6-PP production by Trichoderma harzian...
UTILIZATION OF GASES FROM BIOMASS GASIFICATION IN A REFORMING REACTOR COUPLED TO AN INTEGRATED PLANAR SOLID OXIDE FUEL CELL: SIMULATION ANALYSIS
hydrogen chemical reactor fuel cell
2009/10/13
One of the high-efficiency options currently under study for a rational employment of hydrogen are fuel cells. In this scenario, the Integrated Planar Solid Oxide Fuel Cell (IP-SOFC) is a new concept ...
Solid Oxide Fuel Cell as a Multi-fuel Applicable Power Generation Device
Solid oxide fuel cell Fuel flexibility Shift reaction Steam reforming Carbon deposition
2009/7/24
The solid oxide fuel cell (SOFC) has high conversion efficiency, and is quite attractive from the viewpoint of fuel flexibility, especially the possibility of internal reforming of methane and other ...
Effect of Sudden Increase of Solid Feed Rate on the Arching in Hoppers Connected to a Standpipe with Interstitial Gas Flow
moving-bed standpipe width of arching model
2009/4/22
In this paper, a model is proposed for the prediction of the width of arching in hoppers resulted from sudden changes in solid feed rates. Such changes in solid feed rate usually come from the colli...
Numerical Simulation on Gas-Solid Two-Phase Turbulent Flow in FCC Riser Reactors (I) Turbulent Gas-Solid Flow-Reaction Model
riser reactor turbulent flow gas-solid flow
2009/3/30
Gas-solid two-phase turbulent flows, mass transfer, heat transfer and catalytic cracking reactions are known to exert interrelated influences in commercial fluid catalytic cracking(FCC) riser reactor...
Numerical Simulation on Gas-Solid Two-Phase Turbulent Flow in FCC Riser Reactors (II) Numerical Simulation on the Gas-Solid Two-Phase Turbulent Flow
commercial riser reactor flow-reaction model turbulent flow
2009/3/26
Numerical simulation on the flow, heat transfer and cracking reactions in commercial fluid catalytic cracking(FCC)riser reactors were carried out employingthe developed turbulent gas-solid two-phase ...
Numerical solution of viscous flow past a solid sphere with the control volume formulation
sphere laminar flow numerical simulation
2009/3/26
Numerical solution of viscous flow past a solid sphere with the control volume formulation.
Fundamental studies on the hydrodynamics and mixing of gas and solid in a downer reactor
circulating fluidized bed gas-solid mixing, RTD
2009/3/26
Fundamental studies on the hydrodynamics and mixing of gas and solid in a downer reactor。
Prediction of Diffusion Coefficients of Liquid and Solid Solutes in Supercritical Solvents
diffusion coefficient supercritical fluids
2009/3/25
Prediction of Diffusion Coefficients of Liquid and Solid Solutes in Supercritical Solvents.