24. Desulfurization Process for
Dibenzothiophenes from Light Oil by Photochemical Reaction and Liquid-Liquid
Extraction
Takayuki
Hirai, Ken Ogawa and Isao Komasawa
Ind.
Eng. Chem. Res., 35(2), 586-589 (1996)
32. Desulfurization Process for Light Oil by
Photochemical Reaction and Liquid-Liquid Extraction: Removal of Benzothiophenes
and Alkyl Sulfides
Takayuki
Hirai, Yasuhiro Shiraishi and Isao Komasawa
J.
Chem. Eng. Japan, 30(1), 173-175 (1997)
33. Effect of Photosensitizer and Hydrogen
Peroxide on Desulfurization of Light Oil by Photochemical Reaction and
Liquid-Liquid Extraction
Takayuki
Hirai, Yasuhiro Shiraishi, Ken Ogawa and Isao Komasawa
Ind.
Eng. Chem. Res., 36(3), 530-533 (1997)
40. A Deep Desulfurization Process for Light Oil
by Photochemical Reaction in an Organic Two-Phase Liquid-Liquid Extraction
System
Yasuhiro
Shiraishi, Takayuki Hirai and Isao Komasawa
Ind.
Eng. Chem. Res., 37(1), 203-211 (1998)
50. Visible Light-Induced Desulfurization
Technique for Light Oil
Yasuhiro
Shiraishi, Yasuto Taki, Takayuki Hirai and Isao Komasawa
Chem.
Commun., 2601-2602 (1998) (No.23)
51. Photochemical Desulfurization of Light Oils
Using Oil/Hydrogen Peroxide Aqueous Solution Extraction System: Application for
High Sulfur Content Straight-Run Light Gas Oil and Aromatic Rich Light Cycle
Oil
Yasuhiro
Shiraishi, Takayuki Hirai and Isao Komasawa
J.
Chem. Eng. Japan, 32(1), 158-161 (1999)
53. A
Deep Desulfurization Process for Light Oil by Photosensitized Oxidation Using a
Triplet Photosensitizer and Hydrogen Peroxide in an Oil/Water Two-Phase
Liquid-Liquid Extraction System
Yasuhiro Shiraishi, Hiroyuki Hara, Takayuki
Hirai and Isao Komasawa
Ind. Eng. Chem. Res.,
38(4), 1589-1595 (1999)
54. Photochemical Desulfurization of Methyl-Substituted
Organic Sulfur Compounds from Light Oil Using an Oil/Hydrogen Peroxide Aqueous
Solution System
Yasuhiro
Shiraishi, Takayuki Hirai and Isao Komasawa
Solv.
Extr. Res. Dev. Japan, 6, 137-143 (1999)
57. Identification
of Desulfurization Products in the Photochemical Desulfurization Process for
Benzothiophenes and Dibenzothiophenes from Light Oil Using an Organic Two-Phase
Extraction System
Yasuhiro Shiraishi, Takayuki Hirai and Isao
Komasawa
Ind. Eng. Chem. Res.,
38(9), 3300-3309 (1999)
58. Visible
Light-Induced Deep Desulfurization Process for Light Oils by Photochemical
Electron-Transfer Oxidation in an Organic Two-Phase Extraction System
Yasuhiro Shiraishi, Yasuto Taki, Takayuki
Hirai and Isao Komasawa
Ind. Eng. Chem. Res.,
38(9), 3310-3318 (1999)
60. Visible
Light-Induced Desulfurization Process for Catalytic-Cracked Gasoline Using an
Organic Two-Phase Extraction System
Yasuhiro Shiraishi, Yasuto Taki, Takayuki
Hirai and Isao Komasawa
Ind. Eng. Chem. Res.,
38(12), 4538-4544 (1999)
64. Photochemical
Desulfurization for Light Cycle Oil Using an Organic Two-Phase Extraction
System
Yasuhiro Shiraishi, Takayuki Hirai and Isao
Komasawa
Solv. Extr. Res. Dev. Japan,
7, 11-17 (2000)
66. A
Novel Demetalation Process for Vanadyl- and Nickelporphyrins from Petroleum
Residue by Photochemical Reaction and Liquid-Liquid Extraction
Yasuhiro Shiraishi, Takayuki Hirai and Isao
Komasawa
Ind. Eng. Chem. Res.,
39(5), 1345-1355 (2000)
67. Novel
Deep Desulfurization Processes for Fuel Oils by Photochemical Reaction and
Liquid-Liquid Extraction
Yasuhiro Shiraishi, Takayuki Hirai and Isao
Komasawa
Kagaku Kogaku Ronbunshu,
26(4), 487-496 (2000)
69. Photochemical
Denitrogenation Processes for Light Oils Effected by a Combination of UV
Irradiation and Liquid-Liquid Extraction
Yasuhiro Shiraishi, Takayuki Hirai and Isao
Komasawa
Ind. Eng. Chem. Res.,
39(8), 2826-2836 (2000)
79. Photochemical
Desulfurization and Denitrogenation Process for Vacuum Gas Oil Using an Organic
Two-Phase Extraction System
Yasuhiro Shiraishi, Takayuki Hirai and Isao
Komasawa
Ind. Eng. Chem. Res.,
40(1), 293-303 (2001)
80. A
Novel Desulfurization Process for Fuel Oils Based on the Formation and
Subsequent Precipitation of S-Alkylsulfonium Salts. 1. Light Oil
Feedstocks
Yasuhiro Shiraishi, Yasuto Taki, Takayuki
Hirai and Isao Komasawa
Ind. Eng. Chem. Res.,
40(4), 1213-1224 (2001)
81. A
Novel Desulfurization Process for Fuel Oils Based on the Formation and
Subsequent Precipitation of S-Alkylsulfonium Salts. 2. Catalytic-Cracked
Gasoline
Yasuhiro Shiraishi, Kenya Tachibana, Yasuto
Taki, Takayuki Hirai and Isao Komasawa
Ind. Eng. Chem. Res.,
40(4), 1225-1233 (2001)
83. Operability Study on a Photochemical
Desulfurization Process for Light Oil Using an Organic Two-Phase Extraction
System
Yasuhiro
Shiraishi, Takayuki Hirai and Isao Komasawa
Solv.
Extr. Res. Dev. Japan, 8, 165-171 (2001)
88. A
Novel Desulfurization Process for Fuel Oils Based on the Formation and
Subsequent Precipitation of S-Alkylsulfonium Salts. 3. Denitrogenation
Behavior of Light Oil Feedstocks
Yasuhiro Shiraishi, Kenya Tachibana,
Takayuki Hirai and Isao Komasawa
Ind. Eng. Chem. Res.,
40(15), 3390-3397 (2001)
89. A
Novel Desulfurization Process for Fuel Oils Based on the Formation and
Subsequent Precipitation of S-Alkylsulfonium Salts. 4. Desulfurization
and Simultaneous Denitorogenation of Vacuum Gas Oil
Yasuhiro Shiraishi, Takayuki Hirai and Isao
Komasawa
Ind. Eng. Chem. Res.,
40(15), 3398-3405 (2001)
90. A Novel Methodology Towards Deep
Desulfurization of Light Oil Effected by Sulfimides Formation
Yasuhiro
Shiraishi, Tomoko Naito, Takayuki Hirai and Isao Komasawa
Chem.
Commun., 1256-1257 (2001) (No.14)
92. A Novel Desulfurization Process for Fuel Oils
Based on the Formation and Subsequent Precipitation of S-Alkylsulfonium
Salts. 5. Denitrogenation Reactivity of Basic and Neutral Nitrogen Compounds
Yasuhiro
Shiraishi, Kenya Tachibana, Takayuki Hirai and Isao Komasawa
Ind.
Eng. Chem. Res., 40(22), 4919-4924 (2001)
95. Denitrogenation Behavior of Light Oils in a
Desulfurization Process Based on Photosensitized Oxidation Using a
Photosensitizer and Hydrogen Peroxide in an Oil/Water Two-Phase System
Yasuhiro
Shiraishi, Takayuki Hirai and Isao Komasawa
Solv.
Extr. Res. Dev. Japan, 9, 121-132 (2002)
96. Quantum Chemical Calculation on the Behavior
of Sulfur Compounds in a Photochemical Desulfurization Process for Light Oils
Using Organic Two-Phase Extraction
Yasuhiro
Shiraishi, Takayuki Hirai and Isao Komasawa
Solv.
Extr. Res. Dev. Japan, 9, 133-140 (2002)
98. TiO2-Mediated Photocatalytic
Desulfurization Process for Light Oils Using an Organic Two-Phase System
Yasuhiro Shiraishi, Takayuki Hirai and
Isao Komasawa
J.
Chem. Eng. Japan, 35(5), 489-492 (2002)
99. Novel
Desulfurization and Simultaneous Denitrogenation Processes for Fuel Oils by
Alkylation and Precipitation
Yasuhiro Shiraishi, Takayuki Hirai and Isao
Komasawa
Kagaku Kogaku Ronbunshu,
28(3), 231-240 (2002)
101. Desulfurization and Denitrogenation Process
for Light Oils Based on Chemical Oxidation followed by Liquid-Liquid Extraction
Yasuhiro Shiraishi, Kenya Tachibana,
Takayuki Hirai and Isao Komasawa
Ind.
Eng. Chem. Res., 41(17), 4362-4375 (2002)
102. A Desulfurization Process for Light Oils
Based on the Formation and Subsequent Adsorption of N-Tosylsulfimides
Yasuhiro Shiraishi, Tomoko Naito,
Takayuki Hirai and Isao Komasawa
Ind. Eng. Chem. Res., 41(17),
4376-4382 (2002)
107. A Novel Thermal Latent Cationic Initiator: S-Alkylsulfonium
Salts Obtained by Desulfurization of Light Oil
Yasuhiro Shiraishi, Kenya Tachibana,
Takayuki Hirai and Isao Komasawa
Ind.
Eng. Chem. Res., 41(23), 5554-5557 (2002)
108. Oxidative Desulfurization Process for Light
Oil Using Titanium Silicate Molecular Sieve Catalysts
Yasuhiro Shiraishi, Takayuki Hirai and
Isao Komasawa
J. Chem. Eng. Japan, 35(12), 1305-1311
(2002)
109. Photochemical Production of Biphenyls from Oxidized
Sulfur Compounds Obtained by Oxidative Desulfurization of Light Oils
Yasuhiro Shiraishi, Kenya Tachibana,
Takayuki Hirai and Isao Komasawa
Energy
and Fuels, 17(1), 95-100 (2003)
110. Polymer-Supported Sulfonium Salts Obtained by
Desulfurization of Light Oil as Novel Phase Transfer Catalyst
Yasuhiro Shiraishi, Takayuki Hirai and
Isao Komasawa
J.
Chem. Eng. Japan, 36(2), 220-224 (2003)
111. S-Methylsulfonium Salts Obtained by
Desulfurization of Vacuum Gas Oil and Catalytic-Cracked Gasoline as Thermal
Latent Polymerization Initiator
Yasuhiro Shiraishi, Takayuki Hirai and
Isao Komasawa
J.
Chem. Eng. Japan, 36(3), 343-347 (2003)
112. Photochemical Desulfurization and
Denitrogenation of Light Oil Using Benzophenone-Modified Silica Gel as a
Heterogeneous Triplet Photosensitizer
Yasuhiro Shiraishi, and Takayuki Hirai
Solv.
Extr. Res. Dev., Japan, 10, 79-85 (2003)
115. Vanadosilicate Molecular Sieve as a Catalyst
for Oxidative Desulfurization of Light Oil
Yasuhiro Shiraishi, Tomoko Naito and
Takayuki Hirai
Ind. Eng. Chem. Res., 42(24),
6034-6039 (2003)
118. Desulfurization Process for Light Oil Based
on Chemical Adsorption of Sulfur Compounds on Polymer-Supported Imidation Agent
Yasuhiro Shiraishi, Tomoko Naito and
Takayuki Hirai
J.
Chem. Eng. Japan, 36(12), 1528-1531 (2003)
120. Desulfurization of Vacuum Gas Oil Based on
Chemical Oxidation Followed by Liquid-Liquid Extraction
Yasuhiro Shiraishi and Takayuki Hirai
Energy
and Fuels, 18(1), 37-40 (2004)
122. Transmethylation of Olefin via S-Methylsulfonium
Salts Obtained by Desulfurization of Light Oil
Yasuhiro Shiraishi and Takayuki Hirai
J. Mol. Catal. A: Chem., 212(1-2),
115-119 (2004)
131. Desulfurization and Denitrogenation of Light Oils
by Methyl Viologen-Modified Aluminosilicate Adsorbent
Yasuhiro
Shiraishi, Azumi Yamada, and Takayuki Hirai
Energy
and Fuels, 18(5), 1400-1404 (2004)
136. A Desulfurization Process for Light Oil Based
on the Formation of a Charge Transfer Complex with an Electron-Deficient
Polymer
Yasuhiro Shiraishi, Azumi Yamada, and
Takayuki Hirai
Solv.
Extr. Res. Dev., Japan, 12, 69-76 (2005)
153. Sulfonium Salts Obtained by Desulfurization
of Light Oils as an Initiator for Cationic Photopolymerization
Yasuhiro
Shiraishi and Takayuki Hirai
Energy
and Fuels, 20(5), 1767-1770 (2006)