Results 1 to 10 of about 485,699 (306)

A Waste-derived Lithium Metasilicate Basic Catalyst [PDF]

MATEC Web of Conferences, 2017
A mixed product of lithium metasilicate (74%) and minor proportions of calcium carbonate, lithium carbonate and calcium hydroxide was prepared by hydrothermal synthesis from waste green container glass in 4 M lithium hydroxide solution at 125 °C.
Elmes Victoria Katherine, Mendham Andrew Paul, Coleman Nichola Jayne   +2 more
doaj   +6 more sources

Catalyst in Basic Oleochemicals

Bulletin of Chemical Reaction Engineering & Catalysis, 2007
Currently Indonesia is the world largest palm oil producer with production volume reaching 16 million tones per annum. The high crude oil and ethylene prices in the last 3 – 4 years contribute to the healthy demand growth for basic oleochemicals: fatty ...
Eva Suyenty, Herlina Sentosa, Mariani Agustine, Sandy Anwar, Abun Lie, Erwin Sutanto   +5 more
doaj   +2 more sources

Environmentally Friendly New Catalyst Using Waste Alkaline Solution from Aluminum Production for the Synthesis of Biodiesel in Aqueous Medium

Bioengineering, 2023
Red mud (RM) is composed of a waste alkaline solution (pH = 13.3) obtained from the production of alumina. It contains high concentrations of hematite (Fe2O3), goethite (FeOOH), gibbsite [Al(OH)3], a boehmite (AlOOH), anatase (Tetragonal–TiO2), rutile ...
Sandro L. Barbosa, David Lee Nelson, Lucas Paconio, Moises Pedro, Wallans Torres Pio dos Santos, Alexandre P. Wentz, Fernando L. P. Pessoa, Foster A. Agblevor, Daniel A. Bortoleto, Maria B. de Freitas-Marques, Lucas D. Zanatta   +10 more
doaj   +1 more source

Reusable Catalyst of KF/Mg-Al Layered Double for Biodiesel Conversion and Optimization using Bohn-Behnken Design

Bulletin of Chemical Reaction Engineering & Catalysis, 2022
This work aimed to synthesize a reusable catalyst of KF/Mg-Al layered double hydroxide (KF/LDH) for a microwave-assisted biodiesel conversion from rice bran oil (RBO).
Totok Eka Suharto, Fethi Kooli, Sheikh Ahmad Izaddin Sheikh Mohd Ghazali, Is Fatimah   +3 more
doaj   +1 more source

Preparation and Physicochemical Characterization of Biodiesel from Recycled Vegetable Oil in Cuenca, Ecuador by Transesterification Catalyzed by KOH and NaOH

Eng, 2023
Due to the environmental impact of using fossil fuels, alternatives for the generation of biofuels are being studied. An option for this problem is to obtain biodiesel from recycled vegetable oil.
Jennifer Ramírez, Lourdes Buestán, Eduardo Alberto López-Maldonado, Verónica Pinos-Vélez   +3 more
doaj   +1 more source

Are Ni/ and Ni5Fe1/biochar catalysts suitable for synthetic natural gas production? A comparison with γ-Al2O3 supported catalysts

Green Energy & Environment, 2023
Among challenges implicit in the transition to the post–fossil fuel energetic model, the finite amount of resources available for the technological implementation of CO2 revalorizing processes arises as a central issue. The development of fully renewable
M. González-Castaño, C. Morales, J.C. Navarro de Miguel, J.H. Boelte, O. Klepel, J.I. Flege, H. Arellano-García   +6 more
doaj   +1 more source

Loading of g‐C3N4 on Core‐Shell Magnetic Mesoporous Silica Nanospheres as a Solid Base Catalyst for the Green Synthesis of some Chromene Derivatives under Different Conditions

ChemistryOpen, 2022
Using heterogeneous basic catalysts has a great importance in chemical reactions because of their advantages (such as easy separation and thermal stability at harsh conditions) over homogeneous catalysts.
Dr. Shekofeh Neamani, Dr. Leila Moradi
doaj   +1 more source

Sustainable conversion of waste corn oil into biofuel over different forms of synthetic muscovite based K+/Na+ sodalite as basic catalysts; characterization and mechanism

Materials Research Express, 2021
Novel types of sodalite enriched in both K ^+ and Na ^+ ions were synthesized from muscovite at different time intervals (24 h (SD-24), 48 (SD-48), and 72 h (SD-72)).
Mostafa R Abukhadra, Alyaa Adlii, May N Bin Jumah, Sarah I Othman, Reem Saleh Alruhaimi, Yasser F Salama, Ahmed A Allam   +6 more
doaj   +1 more source

Functionalized Biochar from the Amazonian Residual Biomass Murici Seed: An Effective and Low-Cost Basic Heterogeneous Catalyst for Biodiesel Synthesis

Molecules, 2023
This study presents the synthesis of a basic heterogeneous catalyst based on sodium functionalized biochar. The murici biochar (BCAM) support used in the process was obtained through the pyrolysis of the murici seed (Byrsonimia crassifolia), followed by ...
Thaissa Saraiva Ribeiro, Matheus Arrais Gonçalves, Geraldo Narciso da Rocha Filho, Leyvison Rafael Vieira da Conceição   +3 more
doaj   +1 more source

Plasma-assisted CO2 methanation: effects on the low-temperature activity of an Ni–Ce catalyst and reaction performance [PDF]

Royal Society Open Science, 2019
Ni–Ce three-dimensional material with macropore diameter of 146.6 ± 8.4 nm was synthesized and used as a methanation catalyst. Firstly, H2 reduction of the catalyst was conducted in the thermal fixed bed and plasma reactor, respectively, then X-ray ...
Yuanzheng Ge, Tao He, Dezhi Han, Guihua Li, Ruidong Zhao, Jinhu Wu   +5 more
doaj   +1 more source