Results 341 to 350 of about 2,241,134 (405)

Diatomite supported by CaO/MgO nanocomposite as heterogeneous catalyst for biodiesel production from waste cooking oil

Journal of Molecular Liquids, 2019
Production of renewable, biodegradable, and non-toxic biodiesel by recycling waste cooking oil offers a profitable way to reduce the raw materials of waste oil. Low-cost, efficient, reusable, and ecofriendly heterogeneous catalyst is therefore obligatory
A. M. Rabie, M. Shaban, Mostafa R. Abukhadra, R. Hosny, S. Ahmed, N. Negm   +5 more
semanticscholar   +1 more source

Heterogeneous Catalysts for Biodiesel Production

Energy & Fuels, 2007
The production of biodiesel is greatly increasing due to its enviromental benefits. However, production costs are still rather high, compared to petroleum-based diesel fuel. The introduction of a solid heterogeneous catalyst in biodiesel production could reduce its price, becoming competitive with diesel also from a financial point of view.
DI SERIO, MARTINO, TESSER, RICCARDO, L. Pengmei, SANTACESARIA, ELIO   +3 more
openaire   +3 more sources

New heterogeneous catalyst for biodiesel production from waste tucumã peels (Astrocaryum aculeatum Meyer): Parameters optimization study

Renewable Energy, 2019
Peels from tucuma, a widely consumed fruit in the North of Brazil, were calcined at 800 °C and employed as heterogeneous catalyst in biodiesel synthesis. The catalyst characterization by WDXRF showed it was mostly composed of K, P, Ca, and Mg.
Iasmin Maquiné Mendonça, Orlando A.R.L. Paes, P. J. S. Maia, Mayane P. Souza, R. A. Almeida, C. C. Silva, S. Duvoisin, F. A. Freitas   +7 more
semanticscholar   +1 more source

Heterogeneous Enantioselective Catalysts: Strategies for the Immobilization of Homogeneous Catalysts

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Paul, McMorn, Graham J, Hutchings
openaire   +2 more sources

High efficiency heterogeneous Fenton-like catalyst biochar modified CuFeO2 for the degradation of tetracycline: Economical synthesis, catalytic performance and mechanism

Applied Catalysis B: Environmental, 2021
The heterogeneous Fenton-like catalysts biochar modified CuFeO2 (CuFeO2/BC) were fabricated by hydrothermal method without additional chemical reducing agent. The systematic characterization demonstrated that higher CuFeO2 particles dispersion and larger
Shuaishuai Xin, Guocheng Liu, Xiaohang Ma, Jiaxin Gong, Bingrui Ma, Qinghua Yan, Qinghua Chen, Dong Ma, Guangshan Zhang, M. Gao, Yanjun Xin   +10 more
semanticscholar   +1 more source

Sulfonated graphitic carbon nitride as a highly selective and efficient heterogeneous catalyst for the conversion of biomass-derived saccharides to 5-hydroxymethylfurfural in green solvents

Green Chemistry, 2019
Sulfonated graphitic carbon nitride having both Brønsted base and Brønsted acid sites is used as a heterogeneous catalyst for the selective conversion of different biomass-derived saccharides to 5-hydroxymethylfurfural in green solvents.
Tripti Chhabra, Ashish Bahuguna, S. Dhankhar, C. Nagaraja, V. Krishnan   +4 more
semanticscholar   +1 more source

Heterogeneous hydrogenation catalysts

Russian Chemical Reviews, 1998
The main types of heterogeneous catalysts used for hydrogenation, the methods for their preparation, and the structure and chemistry of their surfaces are considered, as well as the catalytic activity and the mechanism of action in the hydrogenation of unsaturated and aromatic compounds, of CO, and of carbonyl compounds and in the hydrorefining of ...
Marina D Navalikhina, Oleg V Krylov
openaire   +1 more source

Degradation of chloramphenicol and metronidazole by electro-Fenton process using graphene oxide-Fe3O4 as heterogeneous catalyst

Journal of Environmental Chemical Engineering, 2019
This study investigates the degradation and mineralization of two widely used antibiotics, chloramphenicol and metronidazole, by an electro-Fenton process using graphene oxide-Fe3O4 as a heterogeneous catalyst.
Fatma Görmez, Özkan Görmez, B. Gözmen, D. Kalderis   +3 more
semanticscholar   +1 more source

Synthesis of biomass as heterogeneous catalyst for application in biodiesel production: State of the art and fundamental review

Renewable & Sustainable Energy Reviews, 2018
Biodiesel is gaining attention as a remedy for the increasing demand of fossil fuels which is depleting rapidly. Commercial homogeneous catalysts in the biodiesel production industry are facing challenges such as separation difficulties and severe ...
Z. Tang, Steven Lim, Y. Pang, Hwai Chyuan Ong, Keat-Teong Lee   +4 more
semanticscholar   +1 more source

Kinetics and optimization studies using Response Surface Methodology in biodiesel production using heterogeneous catalyst

Chemical engineering research & design, 2018
Biodiesel is an eco-friendly fuel is known to be an alternative source for fossil fuels. Many studies reported transesterification based reaction methods for biodiesel production from edible/non-edible oils.
Chandra Sekhar Latchubugata, Raghu Vamsi Kondapaneni, Kiran Kumar Patluri, U. Virendra, S. Vedantam   +4 more
semanticscholar   +1 more source