Results 111 to 120 of about 8,448 (204)

Riding the sulfur cycle - metabolism of sulfonates and sulfate esters in Gram-negative bacteria [PDF]

open access: yes, 2017
Sulfonates and sulfate esters are widespread in nature, and make up over 95% of the sulfur content of most aerobic soils. Many microorganisms can use sulfonates and sulfate esters as a source of sulfur for growth, even when they are unable to metabolize ...
Kertesz, Michael A.
core  

Deep Oxidative Desulfurization Utilizing Hybrid Keggin Catalyst with 1-methyl-3-octyl imidazolium hexafluorophosphate

open access: yesمجلة بغداد للعلوم
Deep oxidative desulfurization is a crucial topic for environmental catalysis research for producing a low-sulfur diesel. One of the effective catalysts that have been used recently for oxidative desulfurization of the refractory sulfur compound from ...
Yasmeen Mundher   +2 more
doaj   +1 more source

Advanced Desulfurization via Ultrasonic-Assisted Oxidative Methods in Gasoline and Crude Oil Towards Sustainability

open access: yesChemical Engineering Transactions
The presence of sulfur in crude oil and gasoline is crucial in both environmental and industrial contexts. This paper explores the intricate nature of sulfur, including elemental sulfur, hydrogen sulfide, carbonyl sulfide, and various organic compounds ...
Kate Andre T. Alviar   +3 more
doaj  

Development of carbon slurry fuels for transportation (hybrid fuels, phase 2) [PDF]

open access: yes
Slurry fuels of various forms of solids in diesel fuel are developed and evaluated for their relative potential as fuel for diesel engines. Thirteen test fuels with different solids concentrations are formulated using eight different materials. A variety
Dodge, L. G., Ryan, T. W., III
core   +1 more source

Advancing gasoline desulfurization: Multi-objective fuzzy optimization in systems technology

open access: yesHeliyon
Ultrasonic-assisted oxidative desulfurization (UAOD) is utilized to lessen environmental problems due to sulfur emissions. The process uses immiscible polar solvents and ultrasonic waves to enhance desulfurization efficiency.
Stephen S. Correa   +3 more
doaj   +1 more source

Recuperación de V y Mo de catalizadores gastados de la industria petroquímica. Parte II [PDF]

open access: yes, 2001
En el presente trabajo se desarrollaron dos procesos para la recuperación de los metales vanadio, molibdeno y níquel contenidos en catalizadores de desecho de la industria petroquímica.
Elizondo V., Nora   +2 more
core   +1 more source

High temperature regenerative H.sub.2 S sorbents [PDF]

open access: yes, 1988
Efficient, regenerable sorbents for removal of H.sub.2 S from high temperature gas streams comprise porous, high surface area particles. A first class of sorbents comprise a thin film of binary oxides that form a eutectic at the temperature of the gas ...
Flytani-Stephanopoulos, Maria   +2 more
core   +1 more source

Effect of Flow Rate and Partial Pressure of Oxygen on Desulfurization of KR Slag

open access: yesMetals
KR (Kanbara Reaction) desulfurization slag is a solid waste that is not sufficiently utilized. This is because the KR desulfurization slag contains 1–2.5% sulfur, which is directly used in steel smelting to increase the sulfur content in molten steel ...
Peng Jiang   +3 more
doaj   +1 more source

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