相关实验视频

Updated: Jan 20, 2026

Author Spotlight: Employing Green-Chemistry Principles for Safe and Sustainable Synthesis of Biodiesels
04:40

Author Spotlight: Employing Green-Chemistry Principles for Safe and Sustainable Synthesis of Biodiesels

Published on: April 19, 2024

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提高生物柴油化中的乙指数:从NiO-MoO3/TiO2和NiO/TiO2催化剂的见解

María Elena Manríquez Ramírez1, Carmen M Reza San Germán1, Miriam Estrada Flores1

  • 1Instituto Politécnico NacionalESIQIE, Unidad Profesional Adolfo López Mateos, Departamento de Ingeniería Química Industrial (DIQI) Edif Z-5 2do. Piso, Zacatenco, GAM, Mexico City C.P. 07338, Mexico.

ACS omega
|January 19, 2026
PubMed
概括

生物柴油被催化化以改善其燃烧质量,显著提高其 cetane 指数. 这个过程将生物柴油升级为高质量的可再生柴油,符合国际燃料标准.

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Catalytic Hydrogenation of Alkene: Applications in Chemistry06:06

Catalytic Hydrogenation of Alkene: Applications in Chemistry

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Predicting Catalyst Extrudate Breakage Based on the Modulus of Rupture

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相关概念视频

Hydrogenation06:06

Hydrogenation

Source: Vy M. Dong and Zhiwei Chen, Department of Chemistry, University of California, Irvine, CA
This experiment will demonstrate the hydrogenation of chalcone as an example of an alkene hydrogenation reaction (Figure 1). In this experiment, palladium on carbon (Pd/C) will be used as a heterogeneous catalyst for the process. A balloon will be used to supply the hydrogen atmosphere.
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Ultrasonic-Assisted Preparation of Biodiesel Products from Vegetable Oils04:40

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A safe ultrasonic-assisted transesterification method for vegetable oils using an alkaline catalyst is presented here. The method is rapid and efficient for preparing pure biodiesel products.
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Predicting Catalyst Extrudate Breakage Based on the Modulus of Rupture

Here we present a protocol to measure the modulus of rupture of an extruded catalyst and the breakage of said catalyst extrudates by collision against a surface or by compression in a fixed...
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Catalytic Reactor: Hydrogenation of Ethylene08:56

Catalytic Reactor: Hydrogenation of Ethylene

Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA
The hydrogenation of ethylene (C2H4) to ethane (C2H6) has often been studied as a model reduction reaction in characterizing new metal catalysts.1-2 While supported nickel is not the most active metal catalyst for this reaction, it is active enough that reaction can take place at < 200°C.
The reaction typically involves adsorbed, dissociated hydrogen (H2)...
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Hydrogen Bonds00:26

Hydrogen Bonds

Hydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge.
Hydrogen Bonds Control the World!
Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared....
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Temperature-programmed Deoxygenation of Acetic Acid on Molybdenum Carbide Catalysts08:15

Temperature-programmed Deoxygenation of Acetic Acid on Molybdenum Carbide Catalysts

Presented here is a protocol for the operation of a micro-scale temperature-programmed reactor for evaluating the catalytic performance of molybdenum carbide during acetic acid...
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