Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 49,
  • Issue 5,
  • pp. 682-684
  • (1995)

Comparison of Microwave-Assisted Digestion Methods for the Analysis of Hydrotreating Catalysts by Atomic Emission

Not Accessible

Your library or personal account may give you access

Abstract

Nickel-molybdenum catalysts make up a large portion of hydrotreating catalysts and have very wide applications in the petroleum refining industry. They are primarily used to remove undesirable elements such as N, O, and S along with Ni, V, and Fe from petroleum feedstocks or products. They have also been useful in hydrogenation of unsaturates and hydrocracking of heavy compounds. However, they are not universal catalysts; each catalyst is designed to perform one major task in the process. In a procedure to make Ni-Mo catalysts selective for a particular reaction or improve the thermomechanical properties, promoters and modifiers are incorporated into the catalysts. Their concentrations play a crucial role in the performance of the catalyst, whether it is thermal stability or catalytic activity.

PDF Article
More Like This
Application of laser-induced breakdown spectroscopy to assess palladium catalyst deactivation

Sahar Belyani, Mohammad Hossein Keshavarz, Seyyed Mohammad Reza Darbani, and Masoud Kavosh Tehrani
Appl. Opt. 58(4) 794-799 (2019)

Infrared emission spectra from a heterogeneous catalyst system in reaction conditions. 1: Description of the microreactor assembly

P. C. M. van Woerkom, P. Blok, H. J. van Veenendaal, and R. L. de Groot
Appl. Opt. 19(15) 2546-2550 (1980)

Rapid trace element analysis of microgram soft materials with cryogenic milling and laser ablation spectroscopy

Yuanchao Liu, Yi-Kong Hsieh, Conrad Wong, Irfan Ahmed, Rafay Ahmed, Muhammad Shehzad Khan, Richard Y. H. Cheung, Chu-Fang Wang, and Condon Lau
Appl. Opt. 59(26) 7752-7759 (2020)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved