Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


New method for producing catalyst materials to reduce sulfur content in petroleum fuels

Trimetallic Ni-Mo-W catalysts for the hydrodesulphurization of dibenzothiophene

Increasingly strict environmental legislation is being applied to motor vehicle emissions. An important aspect of these regulations is the restriction of the amount of sulfur in vehicle transportation fuels. The process used to modify fuels and remove the sulfur is known as hydrodesulphurization (HDS). The HDS process requires novel catalyst materials that are often difficult to synthesize using traditional methods. Another synthesis method, mechanical alloying (MA), shows potential for producing catalysts but to date is not well documented for this application.

It is known that NEBULA (New Bulk Activity) catalysts based on Ni-Mo-W, are four times more active than typical catalysts and two times more than other advanced formulations. These types of catalysts opened the way to new bulk catalysts with improved catalytic activity in HDS.

In this work, researchers R. Huirache-Acuna, M. I. Flores Z., M. A. Albiter, I. Estrada-Guel, C. Ornelas, F. Paraguay-Delgado, J.L. Rico, L. Bejar-Gomez, G. Alonso-Nunez and R. Martinez-Sanchez, from Centro de Investigación en Materiales Avanzados (CIMAV) and Universidad Michoacana de San Nicolás de Hidalgo in Mexico prepared quaternary alloys of Ni-Mo-W-Al by mechanical alloying. In addition, a process of chemical extraction by alkaline leaching was applied to remove aluminum in order to increase the specific surface area (SSA) and to generate porous materials which were tested in the HDS of dibenzothiophene (DBT) to determine their catalytic activity and selectivity.

The catalyst materials produced were found to have a moderate catalytic activity, due to the synergized effect of small particle and crystal size, and presence of porosity.

Dr. Ian Birkby | EurekAlert!
Further information:

More articles from Materials Sciences:

nachricht From ancient fossils to future cars
21.10.2016 | University of California - Riverside

nachricht Study explains strength gap between graphene, carbon fiber
20.10.2016 | Rice University

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Etching Microstructures with Lasers

Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.

This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...

Im Focus: Light-driven atomic rotations excite magnetic waves

Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion

Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Ice shelf vibrations cause unusual waves in Antarctic atmosphere

25.10.2016 | Earth Sciences

Fluorescent holography: Upending the world of biological imaging

25.10.2016 | Power and Electrical Engineering

Etching Microstructures with Lasers

25.10.2016 | Process Engineering

More VideoLinks >>>