نتایج جستجو برای: deep desulfurization

تعداد نتایج: 211755  

Journal: :Applied and environmental microbiology 1998
Rhee Chang

A dibenzothiophene (DBT)-desulfurizing bacterial strain was isolated and identified as Gordona strain CYKS1. Strain CYKS1 was found to transform DBT to 2-hydroxybiphenyl via the 4S pathway and to be able to also use organic sulfur compounds other than DBT as a sole sulfur source. Its desulfurization activity was susceptible to sulfate repression. Active resting cells for desulfurization could b...

2011
V. E. Santos F. Garcia - Ochoa

Sulfur content in fossil fuels is known to be the most important anthropogenic cause of sulfur oxide emissions to the atmosphere. In order to avoid health, environmental and technical problems caused by this compound, legislation imposes restrictive limitations to fuel sulfur content. Biodesulfurization (BDS) can become a complementary technology to hydrodesulfurization (HDS) to face this situa...

2017
Lucas Teixeira Roberto Parreiras Tavares

In the present chapter, a computational fluid dynamics (CFD) model for multiphase flow was developed, allowing the simulation of two different processes, the desulfurization of hot metal in a ladle mechanically agitated by an impeller (KR process) and the desulfuri‐ zation of steel in a gas-agitated ladle. The model gives important information to charac‐ terize the fluid flow conditions, to def...

2016
Mengjing Wang Wenbin Liu Meifang Hou Qianqian Li Ying Han Guorui Liu Haifeng Li Xiao Liao Xuebin Chen Minghui Zheng

The sintering flue gas samples were collected at the inlets and outlets of the desulfurization systems to evaluate the influence of the systems on PCNs emission concentrations, profiles, and emission factors. The PCNs concentrations at the inlets and outlets were 27888-153672 pg m(-3) and 11988-42245 pg m(-3),respectively. Desulfurization systems showed excellent removal for PCNs, and the remov...

Journal: :Chemical communications 2009
Myung Gil Choi Youn Hwan Kim Ji Eun Namgoong Suk-Kyu Chang

The highly selective chemodosimetric behavior of thiocoumarins toward Hg(2+) ions was investigated; significant chromogenic and fluorogenic signaling of Hg(2+) ions occurs from the transformation of thiocoumarin to coumarin by Hg(2+)-induced selective desulfurization.

Journal: :Dalton transactions 2012
Hui Yang Fei Wang Yao Kang Tie-Hu Li Jian Zhang

Presented here is a multifunctional microporous indium-organic framework material with doubly linked MIL-88D structure, which exhibits high surface area, excellent CO(2)/N(2) adsorption selectivity, good hydrogen storage ability and notable desulfurization behavior.

Journal: :Molecules 2017
Taras M Sokolenko Maya I Dronkina Emmanuel Magnier Lev M Yagupolskii Yurii L Yagupolskii

The "chlorination/fluorination" technique for aliphatic trifluoromethyl ether synthesis was investigated and a range of products with various functional groups was prepared. The results were compared with oxidative desulfurization-fluorination of xanthates with the same structure.

Journal: :Japanese Journal of Applied Physics 2023

Abstract Bitumen contains approximately 5 wt% sulfur so it must be removed before being used as fuel. Herein, we performed oxidative desulfurization of bitumen at room temperature using n-pentane and ultrasound to reduce viscosity mix the bitumen-dissolved aqueous reaction solution physically. The states in ratio were investigated confirm process. Additionally, developed a novel method for sepa...

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