Friday, August 7, 2009

Sometimes, the Government Gets It Right: Science.gov

As a more focused alternative to Google®, Yahoo!® et al, try Science.gov (www.science.gov) In a quick search for “dibenzothiophene,” I obtained results that I could have gotten with the popular search engines, but with much less clutter.

The side bar that pops up next to the search results lets you refine your search with a click. When I clicked on “Sulfur Removal” a list of 46 hits appeared. The first 10 hits are reproduced below …

Elucidation of 2-hydroxybiphenyl effect on dibenzothiophene desulfurization by Microbacterium sp. strain ZD-M2.
Chen, Han; Zhang, Wen-Juan; Cai, Yu-Bei; Zhang, Ying; Li, Wei2008-02-26
The effect of 2-hydroxybiphenyl (2-HBP), the end product of dibenzothiophene (DBT) desulfurization via 4S pathway, on cell growth and desulfurization activity was investigated by Microbacterium sp. The experimental results indicate that 2-HBP would…
Bioresource technology
PubMed

Evidence for the role of zinc on the performance of dibenzothiophene desulfurization by Gordonia alkanivorans strain 1B [electronic resource].
Alves, Luís2008-01-01
AGRICOLA Articles

Adsorption equilibrium and kinetics of dibenzothiophene from n-octane on bamboo charcoal
Zhao, Dishun Zhang, Juan Duan, Erhong Wang, Jinlong2008-03-01
Not Available
Applied Surface Science
NASA Astrophysics Data System (ADS)

Effect of TiO₂-Al₂O₃ Sol-Gel Supports on the Superficial Ni and Mo Species in Oxidized and Sulfided NiMo/TiO₂-Al₂O₃ Catalysts: Influence on Dibenzothiophene Hydrodesulfurization [electronic resource].
Guevara, A.2008-01-01
AGRICOLA Articles

Genetic Rearrangement Strategy for Optimizing the Dibenzothiophene Biodesulfurization Pathway in Rhodococcus erythropolis▿
Li, Guo-qiang; Li, Shan-shan; Zhang, Ming-lu; Wang, Jun; Zhu, Lin; Liang, Feng-lai; Liu, Ru-lin; Ma, Ting2008-02-28
Dibenzothiophene (DBT) and its derivatives can be microbially desulfurized by enzymes DszC, DszA, and DszB, which are encoded by the operon dszABC and contribute to the conversion in tandem. We investigated the expression characteristics of the dsz…
Applied and Environmental Microbiology
PubMed Central

Study of the Individual Reactions of Hydrodesulphurization of Dibenzothiophene and Hydrogenation of 2-Methylnaphthalene on ZnNiMo/γ-Alumina Catalysts [electronic resource].
Linares, Carlos F.2008-01-01
AGRICOLA Articles

Effects of nicotinamide and riboflavin on the biodesulfurization activity of dibenzothiophene by Rhodococcus erythropolis USTB-03.
Yan, Hai; Sun, Xudong; Xu, Qianqian; Ma, Zhao; Xiao, Chengbin; Jun, Ning2008-06-26
Rhodococcus erythropolis USTB-03 is a promising bacterial strain for the biodesulfurization of dibenzothiophene (DBT) via a sulfur-specific pathway in which DBT is converted to 2-hydroxybiphenyl (2HBP) as an end product. The effects of nicotinamide…
Journal of environmental sciences (China)
PubMed

Genetic Rearrangement Strategy for Optimizing the Dibenzothiophene Biodesulfurization Pathway in Rhodococcus erythropolis.
Li, Guo-Qiang2008-01-01
AGRICOLA Articles

Description of by-product inhibiton effects on biodesulfurization of dibenzothiophene in biphasic media [electronic resource].
Caro, Ainhoa2008-01-01
AGRICOLA Articles

Study of a newly isolated thermophilic bacterium capable of Kuhemond heavy crude oil and dibenzothiophene biodesulfurization following 4S pathway at 60 °C [electronic resource].
Torkamani, Sarah2008-01-01
AGRICOLA Articles

The enhanced adsorption of dibenzothiophene onto cerium/nickel-exchanged zeolite Y.
Wang, Juan; Xu, Fang; Xie, Wei-Jie; Mei, Zhi-Jian; Zhang, Qiu-Zhuo; Cai, Jun2008-08-30
The investigations for selective adsorption of dibenzothiophene (DBT) over Ce/Ni-loaded Y zeolites with the emphasis on the effect of Ce as a cocation in the Ni-loaded Y zeolite are carried out in an attempt to produce more effective adsorbents for…
Journal of hazardous materials
PubMed

[Construction and evaluation of a genetic engineered strain for biodesulfurization]
Li, Huanjie; Yu, Zhijian; Xiong, Xiaochao; Li, Yuguang; Li, Xin2009-03-25
We first cloned the dsz operon of Pseudomonas delafieldii R-8 into the expressing plasmid (pPR9TT) to construct the recombinant plasmid pPR-dsz, and then reintroduced it into strain R-8 to obtain a muti-copy dsz operon engineering strain R-8-1. Compared w…
Sheng wu gong cheng xue bao = Chinese journal of biotechnology
PubMed

Ultrasound-assisted oxidative process for sulfur removal from petroleum product feedstock.
Mello, Paola D.; Duarte, Fábio A.; Nunes, Matheus A.; Alencar, Mauricio S.; Moreira, Elizabeth M.; Korn, Mauro2009-04-08
A procedure using ultrasonic irradiation is proposed for sulfur removal of a petroleum product feedstock. The procedure involves the combination of a peroxyacid and ultrasound-assisted treatment in order to comply with the required sulfur content recommen…
Ultrasonics sonochemistry
PubMed

Liquid phase adsorption by microporous coordination polymers: removal of organosulfur compounds.
Cychosz, Katie A.; Wong-Foy, Antek G.; Matzger, Adam J.2008-05-10
The utility of microporous coordination polymers (MCPs) for the adsorption of large organosulfur compounds (benzothiophene, dibenzothiophene, 4,6-dimethyldibenzothiophene) found in fuels is demonstrated. Large capacities are obtained at both low an…
Journal of the American Chemical Society
PubMed

Integrated biodesulfurization process, including inoculum preparation, desulfurization and sulfate removal in a single step, for removing sulfur from oils [electronic resource].
Tangaromsuk, Jantana2008-01-01
AGRICOLA Articles

Electron spin resonance of sulfide catalysts
Silbernagel, B. G.1983-02-01
ESR observations of finely divided MoS2 and MoS3 compounds and sulfided molybdenum species on high surface area alumina supports show two distinct defect classes: an oxygen-coordinated (oxo-Mo5+) form and a sulfur coordinated (thio-Mo5+) form. The density…
Journal of Magnetism and Magnetic Materials
NASA Astrophysics Data System (ADS)

SULFUR REDUCTION IN GASOLINE AND DIESEL FUELS BY EXTRACTION/ADSORPTION OF REFRACTORY DIBENZOTHIOPHENES
Scott G. McKinley; Celedonio M. Alvarez
The purpose of this study was to remove thiophene, benzothiophene and dibenzothiophene from a simulated gasoline feedstock. We found that Ru(NH{sub 3}){sub 5}(H{sub 2}O){sup 2+} reacts with a variety of thiophenes (Th*), affording Ru(NH{sub 3}){sub…
NSDL National Science Digital Library

Applications of micellar enzymology to clean coal technology. [Laccase]
Walsh, C. T.
This project is designed to develop methods for pre-combustion coal remediation by implementing recent advances in enzyme biochemistry. The novel approach of this study is incorporation of hydrophilic oxidative enzymes in reverse micelles in an organic so…
NSDL National Science Digital Library

Adsorption removal of thiophene and dibenzothiophene from oils with activated carbon as adsorbent: effect of surface chemistry
Yu, Chang; Qiu, Jie S.; Sun, Yu F.; Li, Xian H.; Chen, Gang; Bin Zhao, Zong
Commercial coconut-based activated carbons (AC), before and after being treated using 65?wt% HNO3 at different temperatures (termed as AC?Hs), were used as adsorbents to remove thiophene (T) or dibenzothiophene (DBT) from model oils. The fresh AC s…
NSDL National Science Digital Library

A NOVEL APPROACH TO CATALYTIC DESULFURIZATION OF COAL
Verkade, John G.
A gas chromatographic method has been developed for the quantitation of sulfur removed from coal as tributyl phosphine sulfide (SPBu{sub 3}). This method also works very well for speciating and quantitating the products of sulfur removal from organosulfur…
NSDL National Science Digital Library

No comments:

Post a Comment