The Experts below are selected from a list of 84 Experts worldwide ranked by ideXlab platform
Toshiaki Kabe - One of the best experts on this subject based on the ideXlab platform.
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study of hydrodeSulfurization by the use of Sulfur 35 labeled dibenzothiophene 1 hydrodeSulfurization mechanism on sulfided molybdenum alumina
The Journal of Physical Chemistry, 1994Co-Authors: Weihua Qian, Atsushi Ishihara, Shinji Ogawa, Toshiaki KabeAbstract:To estimate the behavior of Sulfur on a hydrodeSulfurization catalyst, 35 S-labeled dibenzothiophene ([ 35 S] DBT) was hydrodeSulfurized on a sulfided Mo/Al 2 O 3 in a fixed-bed pressurized flow reactor. After the hydrodeSulfurization of [ 32 S]DBT reached the steady state, the reactant solution of [ 35 S]DBT was substituted for that of [ 32 S] DBT at the same concentration of DBT. In this period, the radioactivities of unreacted [ 35 S]-DBT and formed [ 35 S] H 2 S was monitored
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study of hydrodeSulfurization by the use of Sulfur 35 labeled dibenzothiophene 2 behavior of Sulfur in hydrodeSulfurization hydrodeoxygenation and hydrodenitrogenation on a sulfided molybdenum alumina catalyst
The Journal of Physical Chemistry, 1994Co-Authors: Toshiaki Kabe, Weihua Qian, Atsushi IshiharaAbstract:To investigate the behavior of Sulfur during the hydrodeSulfurization (HDS), 35 S-labeled dibenzothiophene ([ 35 S]DBT) was reacted on a sulfided Mo/Al 2 O 3 . It was found that 35 S in [ 35 S]DBT was accommodated on the catalyst and the concentration of 35 S on the catalyst always reached a steady state under fixed reaction conditions. 35 S accommodated on the catalyst cannot be removed without the incorporation of Sulfur from HDS of Sulfur compounds such as DBT, benzothiophene, thiophene, and thiophenol
Atsushi Ishihara - One of the best experts on this subject based on the ideXlab platform.
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study of hydrodeSulfurization by the use of Sulfur 35 labeled dibenzothiophene 1 hydrodeSulfurization mechanism on sulfided molybdenum alumina
The Journal of Physical Chemistry, 1994Co-Authors: Weihua Qian, Atsushi Ishihara, Shinji Ogawa, Toshiaki KabeAbstract:To estimate the behavior of Sulfur on a hydrodeSulfurization catalyst, 35 S-labeled dibenzothiophene ([ 35 S] DBT) was hydrodeSulfurized on a sulfided Mo/Al 2 O 3 in a fixed-bed pressurized flow reactor. After the hydrodeSulfurization of [ 32 S]DBT reached the steady state, the reactant solution of [ 35 S]DBT was substituted for that of [ 32 S] DBT at the same concentration of DBT. In this period, the radioactivities of unreacted [ 35 S]-DBT and formed [ 35 S] H 2 S was monitored
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study of hydrodeSulfurization by the use of Sulfur 35 labeled dibenzothiophene 2 behavior of Sulfur in hydrodeSulfurization hydrodeoxygenation and hydrodenitrogenation on a sulfided molybdenum alumina catalyst
The Journal of Physical Chemistry, 1994Co-Authors: Toshiaki Kabe, Weihua Qian, Atsushi IshiharaAbstract:To investigate the behavior of Sulfur during the hydrodeSulfurization (HDS), 35 S-labeled dibenzothiophene ([ 35 S]DBT) was reacted on a sulfided Mo/Al 2 O 3 . It was found that 35 S in [ 35 S]DBT was accommodated on the catalyst and the concentration of 35 S on the catalyst always reached a steady state under fixed reaction conditions. 35 S accommodated on the catalyst cannot be removed without the incorporation of Sulfur from HDS of Sulfur compounds such as DBT, benzothiophene, thiophene, and thiophenol
K J Thomas - One of the best experts on this subject based on the ideXlab platform.
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simplified method for the in situ collection and laboratory analysis of cosmogenic tracers Sulfur 35 and sodium 22 to determine residence time distributions and water ages
Analytical Chemistry, 2021Co-Authors: A Deinhart, Richard K Bibby, A Visser, Melissa Thaw, K J ThomasAbstract:The use of cosmogenically produced Sulfur-35 (T1/2 = 87 days) and sodium-22 (T1/2 = 2.6 years) as intrinsic tracers can provide valuable information on catchment hydrology, flow paths, and subsurface storage. A new and straightforward method was created to determine the activities of both 35S and 22Na in various water sources by pumping large volumes (up to 1000 L) of water through cation- and anion-exchange resin columns in the field to collect sodium and sulfate ions and simple chemistry in the lab. Samples are counted for 35S using liquid scintillation counting (LSC) and for 22Na via γ spectroscopy. Our novel in situ method provides faster sample throughput as well as better counting statistics and lower detection limits. Both methods were successfully applied at the Southern Sierra Critical Zone Observatory.
Weihua Qian - One of the best experts on this subject based on the ideXlab platform.
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study of hydrodeSulfurization by the use of Sulfur 35 labeled dibenzothiophene 1 hydrodeSulfurization mechanism on sulfided molybdenum alumina
The Journal of Physical Chemistry, 1994Co-Authors: Weihua Qian, Atsushi Ishihara, Shinji Ogawa, Toshiaki KabeAbstract:To estimate the behavior of Sulfur on a hydrodeSulfurization catalyst, 35 S-labeled dibenzothiophene ([ 35 S] DBT) was hydrodeSulfurized on a sulfided Mo/Al 2 O 3 in a fixed-bed pressurized flow reactor. After the hydrodeSulfurization of [ 32 S]DBT reached the steady state, the reactant solution of [ 35 S]DBT was substituted for that of [ 32 S] DBT at the same concentration of DBT. In this period, the radioactivities of unreacted [ 35 S]-DBT and formed [ 35 S] H 2 S was monitored
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study of hydrodeSulfurization by the use of Sulfur 35 labeled dibenzothiophene 2 behavior of Sulfur in hydrodeSulfurization hydrodeoxygenation and hydrodenitrogenation on a sulfided molybdenum alumina catalyst
The Journal of Physical Chemistry, 1994Co-Authors: Toshiaki Kabe, Weihua Qian, Atsushi IshiharaAbstract:To investigate the behavior of Sulfur during the hydrodeSulfurization (HDS), 35 S-labeled dibenzothiophene ([ 35 S]DBT) was reacted on a sulfided Mo/Al 2 O 3 . It was found that 35 S in [ 35 S]DBT was accommodated on the catalyst and the concentration of 35 S on the catalyst always reached a steady state under fixed reaction conditions. 35 S accommodated on the catalyst cannot be removed without the incorporation of Sulfur from HDS of Sulfur compounds such as DBT, benzothiophene, thiophene, and thiophenol
Bao Lin - One of the best experts on this subject based on the ideXlab platform.
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transformation of sulfate and organic s in rice straw in flooded paddy soils and its availability to plants using Sulfur 35 labeling
Geoderma, 2006Co-Authors: Wei Zhou, H E Ping, Bao LinAbstract:Abstract Sulfur transformation and its availability to plants in two flooded paddy soils, derived from Black soil in Heilongjiang (soil 1) and from Red earth in Jiangxi (soil 2), were investigated in a closed incubation system using carrier-free 35 S–SO 4 2− and 35 S-labeled rice straw. After incubation for 120 days, 51.1% and 60.3% of the 35 S added in the Na 2 35 SO 4 treatment were found in the sulfate–S fraction, 14.0% and 11.1% as sulfide–S, 5.2% and 5.3% as other non-sulfate inorganic S fraction (OI-S), 9.5% and 6.0% as C–O–S, 8.1% and 7.3% as C-bonded S, and 12.1% and 10.0% as non-reducible organic S fraction (NRO-S) for soil 1 and soil 2, respectively. Since soil Eh increased greatly after planting the rice, sulfide–S and OI-S could be transformed into sulfate as plant-available S. Most of the 35 S uptake by plants came from sulfate– 35 S, sulfide– 35 S and OI– 35 S, with little contribution from C–O– 35 S, C-bonded 35 S or NRO– 35 S. In the treatment with 35 S-labeled rice straw, 23.3% and 26.4% of the 35 S applied was found in the sulfate–S fraction, 25.3% and 26.3% as sulfide–S, 6.0% and 6.1% as OI-S, 16.4% and 14.0% as C–O–S, 10.1% and 8.3% as C-bonded S, and 18.9% and 18.9% as NRO-S at 120th day of incubation in these two soils, respectively. Higher availability of C–O– 35 S, C-bonded 35 S and NRO– 35 S from 35 S-labeled straw was observed in the 35 S-labeled straw treatment, compared to the carrier-free Na 2 35 SO 4 treatment.
