Environmentally-Benign Liquid-Phase Acetone Condensation Process Using Novel Heterogeneous Catalysts

2000 ◽  
pp. 194-205 ◽  
Author(s):  
A. A. Nikolopoulos ◽  
B. W-L. Jang ◽  
R. Subramanian ◽  
J. J. Spivey ◽  
D. J. Olsen ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Heterogeneous Catalysts ◽  
Environmentally Benign ◽  
Condensation Process ◽  
Acetone Condensation

scholarly journals Solvent inhibition in the liquid-phase catalytic oxidation of 1,4-butanediol: understanding the catalyst behaviour from NMR relaxation time measurements

2016 ◽  
Vol 6 (21) ◽  
pp. 7896-7901 ◽  
Author(s):  
Carmine D'Agostino ◽  
Mark R. Feaviour ◽  
Gemma L. Brett ◽  
Jonathan Mitchell ◽  
Andrew P. E. York ◽  
...  
Keyword(s):  
Relaxation Time ◽  
Liquid Phase ◽  
Catalytic Oxidation ◽  
Heterogeneous Catalysts ◽  
Nmr Relaxation ◽  
Nmr Relaxation Time

Solvent inhibition over surfaces affects behaviour and performances of heterogeneous catalysts.

A facile approach to fabricate halloysite/metal nanocomposites with preformed and in situ synthesized metal nanoparticles: a comparative study of their enhanced catalytic activity

2015 ◽  
Vol 44 (19) ◽  
pp. 8906-8916 ◽  
Author(s):  
Sankar Das ◽  
Subhra Jana
Keyword(s):  
Catalytic Activity ◽  
Comparative Study ◽  
Metal Nanoparticles ◽  
Heterogeneous Catalysts ◽  
Cost Effective ◽  
Environmentally Benign ◽  
Metal Nanocomposites

Halloysite/metal nanocomposites have been synthesized through the immobilization of preformed and in situ synthesized metal nanoparticles over halloysite surfaces, which in turn produce efficient, cost-effective, and environmentally benign heterogeneous catalysts.

Environmentally Benign Route for the Synthesis of Polycarbonate Diols (PCDLs)−Calcined MgAl Hydrotalcites as Heterogeneous Catalysts

2008 ◽  
Vol 47 (7) ◽  
pp. 2140-2145 ◽  
Author(s):  
Yue Xia Feng ◽  
Ning Yin ◽  
Qi Feng Li ◽  
Jun Wei Wang ◽  
Mao Qing Kang ◽  
...  
Keyword(s):  
Heterogeneous Catalysts ◽  
Environmentally Benign

MOFs as Heterogeneous Catalysts in Liquid Phase Reactions

2018 ◽  
pp. 379-398 ◽  
Author(s):  
Maksym Opanasenko ◽  
Petr Nachtigall ◽  
Jiří Čejka
Keyword(s):  
Liquid Phase ◽  
Heterogeneous Catalysts

scholarly journals Recent advances on the utilization of layered double hydroxides (LDHs) and related heterogeneous catalysts in a lignocellulosic-feedstock biorefinery scheme

2017 ◽  
Vol 19 (22) ◽  
pp. 5269-5302 ◽  
Author(s):  
Willinton Y. Hernández ◽  
Jeroen Lauwaert ◽  
Pascal Van Der Voort ◽  
An Verberckmoes
Keyword(s):  
Liquid Phase ◽  
Layered Double Hydroxides ◽  
Heterogeneous Catalysts ◽  
Recent Advances ◽  
Lignocellulosic Feedstock ◽  
Different Types ◽  
Double Hydroxides

Layered double hydroxides (LDHs) and derived materials have been widely used as heterogeneous catalysts for different types of reactions either in gas or in liquid phase.

ChemInform Abstract: Heterogeneous Catalysts for Liquid-Phase Oxidations: Philosophers′ Stones or Trojan Horses?

ChemInform ◽  
2010 ◽  
Vol 29 (49) ◽  
pp. no-no
Author(s):  
R. A. SHELDON ◽  
M. WALLAU ◽  
I. W. C. E. ARENDS ◽  
U. SCHUCHARDT
Keyword(s):  
Liquid Phase ◽  
Heterogeneous Catalysts

Various ligand-stabilized metal nanoclusters as homogeneous and heterogeneous catalysts in the liquid phase

2001 ◽  
Vol 15 (3) ◽  
pp. 178-196 ◽  
Author(s):  
Naoki Toshima ◽  
Yukihide Shiraishi ◽  
Toshiharu Teranishi ◽  
Mikio Miyake ◽  
Toshihiro Tominaga ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Heterogeneous Catalysts ◽  
Metal Nanoclusters

Biodiesel Production Using Mixed Solid Catalysts

2013 ◽  
Vol 824 ◽  
pp. 451-458
Author(s):  
A.K. Temu
Keyword(s):  
Active Sites ◽  
Heterogeneous Catalysts ◽  
Biodiesel Production ◽  
Environmentally Benign ◽  
Catalyst Loading ◽  
Yield Data ◽  
Continuous Processes ◽  
Solid Catalysts ◽  
Base Catalysts ◽  
Astm D6751

One of the disadvantages of homogeneous base catalysts in biodiesel production is that they cannot be reused or regenerated because they are consumed in the reaction. Besides, homogeneous catalysed process is not environmentally friendly because a lot of waste water is produced in the separation step. Unlike homogeneous, heterogeneous catalysts are environmentally benign, can be reused and regenerated, and could be operated in continuous processes, thus providing a promising option for biodiesel production. This paper presents catalytic activity of single and mixed solid catalysts in production of biodiesel from palm oil using methanol as well as ethanol at atmospheric pressure. The catalysts used are CaO, K2CO3, Al2O3, and CaO/K2CO3, CaO/Al2O3, K2CO3/Al2O3 mixtures. Results show that methanol is a better reactant with biodiesel yield ranging from 48 to 96.5% while ethanol gives yields ranging from 20 to 95.2%. The yield data for single catalysts range from 20 to 89.2% while that for mixed catalysts range from 52 to 96.5% indicating improvement in the activity by mixing the catalysts. The study also shows that biodiesel yield increases with catalyst loading which emphasizes the need for sufficient number of active sites. The properties of biodiesel produced compares well with ASTM D6751 and EN 14124 biodiesel standards.

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