Results 21 to 30 of about 34,563 (277)

Continuous Production of Biodiesel with Supercritical Methanol: a Simple Compressible Flow Model for Tubular Reactors [PDF]

, 2011
From an industrial point of view, the continuous process for biodiesel production with supercritical methanol (SCM) is more appropriate than the batch process.
Sawangkeaw, Ruengwit, Somkiat, Ngamprasertsith, Kunchana, Bunyakiat, Ruengwit Sawangkeaw, Witsanee Satayanon, Camy, Séverine, Witsanee, Satayanon, Séverine Camy, Somkiat Ngamprasertsith, Condoret, Jean-Stéphane, Kunchana Bunyakiat, Jean-Stéphane Condoret   +11 more
core   +1 more source

ANALYSIS OF FREE FATTY ACID ON SOYBEAN OIL USING GAS CHROMATOGRAPHY – MASS SPECTROSCOPY

Indonesian Journal of Chemistry, 2010
Research on transesterification of soybean oil with sodium methoxide as the catalyst in methanol has been conducted. Yields of transesterification reaction were analyzed by gas chromatography-mass spectroscopy (GC-MS).
Deni Pranowo, M Muchalal
doaj   +1 more source

The synthesis of biodiesel from palm oil and waste cooking oil via electrolysis by various electrodes

Case Studies in Chemical and Environmental Engineering, 2023
The influence of various electrodes used in the synthesis of biodiesel from palm oil and waste cooking oil via electrolysis processes was studied. The results revealed that electro-catalysts introduced to the transesterification of palm oil and waste ...
Darwin, Muhammad Thifal, Muhammad Alwi, Zhairi Murizal, Atmadian Pratama, Muhammad Rizal   +5 more
doaj   +1 more source

A New Metal‐Ester Bonding Motif for the Synthesis of Hybrid Molecular Catalysts on Metal Oxide Supports Leads to Tunable Reactivity

Angewandte Chemie, EarlyView.
This work reports a new metal–ester bonding strategy for anchoring molecular catalysts to metal oxide supports, achieving exceptionally high surface loadings. Catalyst reactivity is predictably tuned by the support's properties, enabling control over electronic behavior and reaction pathways, thus opening new possibilities for designing highly ...
Joseph J. Kuchta III, Sarah M. Moody, Alexia M. Bradbury, D. M. S. C. Dissanayake, Laura C. Maybach, Santosh K. Balijepalli, John R. Regalbuto, Aaron K. Vannucci   +7 more
wiley   +2 more sources

Merging Biocatalysis and Chemocatalysis in Flow: State‐of‐the‐Art and Future Directions for Sustainable Synthesis

Angewandte Chemie, EarlyView.
This review highlights recent advances in integrating biocatalysis and chemocatalysis in continuous flow to create streamlined, sustainable processes. It examines chemo‐enzymatic cascades combining at least one enzymatic and one chemical step, discusses challenges such as enzyme immobilization, leaching, and reactor clogging, and presents solutions ...
Petros Siasiaridis, Matteo Damian, Francesco G. Mutti   +2 more
wiley   +2 more sources

Fluorogenic Coupled Assays Reveal Catalytic Properties, Inhibition Constants and Cellular Location of Mucin‐Active Carbohydrate Sulfatases

Angewandte Chemie, EarlyView.
We report plate‐based coupled assays to rapidly and quantitatively determine the activity and selectivity of mucin‐active carbohydrate sulfatases. This fluorogenic assay further enables inhibitor identification and allows determination of (sub‐)cellular location. ABSTRACT Sulfated glycans play a central role in human health and influence cell signaling,
Charles W. E. Tomlinson, Madouc D. Bergers, David N. Bolam, Ana S. Luis, Alan Cartmell, Zachary Armstrong   +5 more
wiley   +2 more sources

Advanced Chemical Reactor Technologies for Biodiesel Production from Vegetable Oils - A Review

Bulletin of Chemical Reaction Engineering & Catalysis, 2016
Biodiesel is an alternative biofuel that can replace diesel oil without requiring modifications to the engine and advantageously produces cleaner emissions.
Luqman Buchori, Istadi Istadi, Purwanto Purwanto   +2 more
doaj   +1 more source

Process intensification approach for design and optimization of biodiesel production from palm fatty acid distillate

Biotechnology Reports, 2021
Design of the biodiesel production from palm fatty acid distillate (PFAD) using process intensification approach is studied in technical, economic and environmental view points.
Karittha Im-orb, Amornchai Arpornwichanop, Lida Simasatitkul   +2 more
doaj   +1 more source

Synergistic Lewis Acid Photocatalysis Over Cluster‐Defect‐Engineered UiO‐66 for Efficient Liquid Biomass Upgrading

Angewandte Chemie, EarlyView.
A cluster‐defect engineering strategy is presented for the rational design of Zn‐incorporated UiO‐66 photocatalysts. Selective acid etching mediates hierarchical porosity and abundant Lewis acid sites, tailoring the electronic structure and enhancing light harvesting.
Hao Wang, Li‐Long Zhang, Haimei Xu, Baohua Jia, Liqun Ye, Tianyi Ma, Heng Zhang   +6 more
wiley   +2 more sources

Modification of chiral dimethyl tartrate through transesterification : immobilisation on POSS and enantioselectivity reversion in Sharpless asymmetric epoxidation

, 2010
Modification of dimethyl tartrate has been investigated through transesterification with aminoalcohols to provide reactive functionalities for the covalent bonding of chiral tartrate to polyhedral oligomeric silsesquioxanes.
Sherrington, D.C., Van Grieken, R., Van Grieken, Rafael, Sherrington, David C., Gibson, Colin L., Iglesias, José, García, R.A., Gibson, C.L., Iglesias, J., García, Rafael A.   +9 more
core   +1 more source