Results 101 to 110 of about 73,874 (292)

Coal desulfurization by low temperature chlorinolysis, phase 2 [PDF]

open access: yes
An engineering scale reactor system was constructed and operated for the evaluation of five high sulfur bituminous coals obtained from Kentucky, Ohio, and Illinois.
Ernest, J.   +4 more
core   +1 more source

ZnO‐Functionalized Silicon Carbide Ceramic Membranes for Removing Impurities From Biodiesel

open access: yesInternational Journal of Ceramic Engineering &Science, Volume 8, Issue 3, May 2026.
Silicon carbide (SiC) ceramic membranes functionalized with zinc oxide (ZnO) were assessed for biodiesel purification through crossflow filtration. The ZnO–SiC membranes effectively retained metallic impurities, especially calcium, sodium, and phosphorus, achieving levels that meet biodiesel quality standards.
Arthur Santos Romero   +6 more
wiley   +1 more source

Effect of Ion-exchange Sequence of Copper and Cerium on the Performance of Y Zeolite for the Adsorption Removal of Thiophene from Benzene

open access: yesTaiyuan Ligong Daxue xuebao
Purposes The bimetallic modified Y zeolite is of great importance for the deep removal of thiophene in coking benzene. The influence of metal ion-exchange sequence on the desulfurization performance of zeolite is crucial.
WEN Zhihui   +7 more
doaj   +1 more source

Dual‐Phosphorus, Dual‐Nitrogen‐Embedded Corannulene: Synthesis, Structure, and Electronic Coupling

open access: yesChemistryEurope, Volume 4, Issue 5, May 2026.
P2N2‐TBC, a corannulene‐based bowl structure incorporating two phosphorus and two nitrogen atoms, represents the first P2N2‐embedded heterobuckybowl. The cis and trans stereoisomers of this compound display distinct packing motifs, leading to markedly different electronic coupling patterns.
Marina Nagai   +6 more
wiley   +1 more source

Carbon−Phosphorus Bond Activation of Tri(2-thienyl)phosphine at Dirhenium and Dimanganese Centers [PDF]

open access: yes, 2009
Reaction of [Re2(CO)9(NCMe)] with tri(2-thienyl)phosphine (PTh3) in refluxing cyclohexane affords three substituted dirhenium complexes: [Re2(CO)9(PTh3)] (1), [Re2(CO)8(NCMe)(PTh3)] (2), and [Re2(CO)8(PTh3)2] (3).
Begum, Noorjahan   +12 more
core   +2 more sources

Desulfurization of Benzothiophene Derivatives by Solvent Extraction Coupled With Oxidation Using Oxomolybdenum(VI) Bis(pyrazolyl)methane Catalysts

open access: yesEuropean Journal of Inorganic Chemistry, Volume 29, Issue 13, 1 May 2026.
A polymeric hybrid material formulated as [MoO3(bis(pyrazolyl)methane)] has been prepared and used as a catalyst precursor for the complete oxidative desulfurization of a model diesel containing recalcitrant benzothiophene derivatives. The precursor is converted in situ to an oxodiperoxo active species which is retained in the recyclable extractant ...
Ana C. Gomes   +4 more
wiley   +1 more source

Removal and Reuse of Phosphorus as a Fertilizer from CAFO Runoff [PDF]

open access: yes, 2019
Eutrophication is the process in which nutrient saturated waters promote algal blooms on the surface of the water. This limits the amount of dissolved oxygen content in the water, effectively limiting the range of species that can survive in a body of ...
Moore, Kristin
core   +2 more sources

Potentialities of TEC topping: A simplified view of parametric effects [PDF]

open access: yes, 1980
An examination of the benefits of thermionic-energy-conversion (TEC)-topped power plants and methods of increasing conversion efficiency are discussed. Reductions in the cost of TEC modules yield direct decreases in the cost of electricity (COE) from TEC-
Morris, J. F.
core   +2 more sources

What Is the Best Use of Biomass? A Harmonized LCA‐TEA Framework Quantifying Economic and Environmental Metrics for Bioenergy Pathways

open access: yesGCB Bioenergy, Volume 18, Issue 5, May 2026.
A harmonized LCA and TEA framework evaluates 19 bioenergy pathways, quantifying carbon intensity (CI), minimum fuel selling price (MFSP), and marginal abatement cost (MAC). CCS reduces CI to net‐negative values and lowers MAC by up to 64%, with bioelectricity achieving the lowest MAC and liquid biofuels critical for hard‐to‐abate sectors.
Saurajyoti Kar   +5 more
wiley   +1 more source

Reactivity of pi-complexes of Ti, V, and Nb towards dithioacetic acid: Synthesis and structure of novel metal sulfur-containing complexes [PDF]

open access: yes
In order to use sulfur-containing resources economically and with minimal environmental damage, it is important to understand the desulfurization processes. Hydrodesulfurization, for example, is carried out on the surface of a heterogeneous metal sulfide
Andras, Maria T.   +2 more
core   +1 more source

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