Reviewing the Reviews

“A good review from the critics is just another stay of execution.” -- Dustin Hoffman (American actor, b.1937)

Sometimes all you want is a good article that provides an overview of the developments in a particular technology.  Today’s search tip addresses this need.

SEARCH TIP: in Google® Scholar, add  “review article” to your search string

For example, if you enter the following search string …

Desulfurization OR dibenzothiophene OR thiophene OR hydrodesulfurization AND “review article”

… most if not all of the resulting hits will be review articles.  Here are two of them.

///////
Applied Petrochemical Research
Volume 1, Numbers 1-4 (2012)
Rashad Javadli (1,2)
javadli@ualberta.ca
Arno de Klerk (1)
Author Affiliations
1. Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 2V4, Canada
2. ConocoPhillips Canada, Fort McMurray, AB, Canada
Review Article
Desulfurization of heavy oil
Abstract
Strategies for heavy oil desulfurization were evaluated by reviewing desulfurization literature and critically assessing the viability of the various methods for heavy oil. The desulfurization methods including variations thereon that are discussed include hydrodesulfurization, extractive desulfurization, oxidative desulfurization, biodesulfurization and desulfurization through alkylation, chlorinolysis, and by using supercritical water. Few of these methods are viable and/or efficient for the desulfurization of heavy oil. This is mainly due to the properties of the heavy oil, such as high sulfur content, high viscosity, high boiling point, and refractory nature of the sulfur compounds. The approach with the best chance of leading to a breakthrough in desulfurization of heavy oil is autoxidation followed by thermal decomposition of the oxidized heavy oil. There is also scope for synergistically employing autoxidation in combination with biodesulfurization and hydrodesulfurization.
Free Full Text Source: http://www.springerlink.com/content/4k1t37w341213253/

Biotechnology Research InternationalVolume 2012 (2012), Article ID 243217, 20 pagesdoi:10.1155/2012/243217
Review Article
Involvement of the Ligninolytic System of White-Rot and Litter-Decomposing Fungi in the Degradation of Polycyclic Aromatic Hydrocarbons
Natalia N. Pozdnyakova
Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are natural and anthropogenic aromatic hydrocarbons with two or more fused benzene rings. Because of their ubiquitous occurrence, recalcitrance, bioaccumulation potential and carcinogenic activity, PAHs are a significant environmental concern. Ligninolytic fungi, such as Phanerochaete chrysosporium, Bjerkandera adusta, and Pleurotus ostreatus, have the capacity of PAH degradation. The enzymes involved in the degradation of PAHs are ligninolytic and include lignin peroxidase, versatile peroxidase, Mn-peroxidase, and laccase. This paper summarizes the data available on PAH degradation by fungi belonging to different ecophysiological groups (white-rot and litter-decomposing fungi) under submerged cultivation and during mycoremediation of PAH-contaminated soils. The role of the ligninolytic enzymes of these fungi in PAH degradation is discussed.
Free Full Text Source: http://www.hindawi.com/journals/btri/2012/243217/abs/
///////