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Oxidative Desulfurization of Naphtha with Hydrogen Peroxide in Presence of Acid Catalyst in Naphtha/Acetic Acid Biphasic System
被引:6
作者:
Yazu, Kazumasa
[1
]
Matsumura, Akimitsu
[1
]
Sato, Shinya
[1
]
机构:
[1] Natl Inst Adv Ind Sci & Technol, Energy Technol Res Inst, Tsukuba, Ibaraki 3058569, Japan
关键词:
Oxidative desulfurization;
Naphtha;
Hydrogen peroxide;
Acetic acid;
Thiophene;
Hydrodesulfurization;
DEEP DESULFURIZATION;
MILD OXIDATION;
LIQUID-PHASE;
THIOPHENE;
KINETICS;
OIL;
MECHANISM;
FUELS;
TS-1;
H2O2;
D O I:
10.1627/jpi.53.251
中图分类号:
TE [石油、天然气工业];
TK [能源与动力工程];
学科分类号:
0807 ;
0820 ;
摘要:
Oxidative desulfurization of naphtha with H2O2 in the presence of H2SO4 in the naphtha/acetic acid (AeOH) biphasic system was investigated All organosulfur compounds examined were smoothly oxidized in AeOH by peracetic acid effectively formed from AeOH and H2O2 in the presence of H2SO4 The order of the oxidation reactivities was sulfides, disulfides > benzothiophenes > thiophenes The organosulfur compounds in octane were also oxidized with H2O2 in the presence of H2SO4 in the octane/AeOH biphasic system The oxidation proceeded in the AcOH phase and most of the oxidized sulfur compounds resided in this phase, resulting in the successive removal of the sulfur compounds from the octane phase. This oxidative treatment effectively reduced the sulfur content of naphtha. and adsorption with silica gel further reduced the sulfur content to below 0.5 mass ppm In addition, hydrodesulfurization is an effective pretreatment for this oxidative desulfurization of naphtha, resulting in further reduction of the sulfur content to below 0.1 mass ppm
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页码:251 / 255
页数:5
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