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40.026  Articles
1 of 4.004 pages  |  10  records  |  more records»
Biodiesel is a renewable energy source that can be produced through esterification as well as transesterification reactions. This work presents a series of zirconia catalysts synthesized by hydrothermal method on various concentrations in acidic (H2SO4 0.... see more

A sulphated tin ion-exchanged montmorillonite (SO42-/Sn-MMT) was successfully prepared by the ion exchange method of montmorillonite (MMT) with SnCl4, followed by the sulphation. This catalysis was applied as a solid acid catalyst for the heterogeneous ca... see more

In this study, a solid acid was prepared by the sulfonation of surface modified a-zirconium phosphate (ZrP) single-layer nanosheets (SO3

Homogeneous base catalysts contained certain limitations including the formation of soap with the usage of high free fatty acid content feedstock and the difficulty of separating the spent catalyst from the biodiesel product. Thus, the research objective ... see more

In this present study, the catalytic dehydration of ethanol over three different Al-based solid acid catalysts including H-beta zeolite (HBZ), modified H-beta zeolite with ?-Al2O3 (Al-HBZ) and mixed ?-? phase of Al2O3 (M-Al) catalysts was investigated. Th... see more

A sustainable route to ketones is described where stearone is produced via ketonic decarboxylation of stearic acid mediated by solid base catalysts in yields of up to 97%, at 250 °C. A range of Mg/Al layered double hydroxide (LDH) and mixed metal oxide (M... see more

A highly versatile and convenient synthetic route for biologically act­ive a-amino acid, glutamic acid catalyzed facile and mild preparation of poly­functionalized dihydro-2-oxypyrroles via one-pot, four condensation dom­ino reaction between aromatic/alip... see more

Catalytic refining of bio-oil by reacting with olefin/alcohol over solid acids can convert bio-oil to oxygen-containing fuels. Reactivities of groups of compounds typically present in bio-oil with 1-octene (or 1-butanol) were studied at 120 °C/3 h over Do... see more

The main objective of thus study was production, optimization, and fuel quality characterization of biodiesel from equal weight ratio blended acid oil of cottonseed and sunflower soapstock using silica sulfuric acid as a solid acid catalyst in laboratory ... see more

1 of 4.004 pages  |  10  records  |  more records»