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    • 4. 发明申请
    • CATALYTIC PROCESS FOR DEEP OXIDATIVE DESULFURIZATION OF LIQUID TRANSPORTATION FUELS
    • 液体输送燃料的深度氧化脱硫的催化方法
    • WO2007103440A2
    • 2007-09-13
    • PCT/US2007005838
    • 2007-03-05
    • SAUDI ARABIAN OIL COAL-SHAHRANI FARHAN MXIAO TIANCUNMARTINIE GARY DGREEN MALCOLM L H
    • AL-SHAHRANI FARHAN MXIAO TIANCUNMARTINIE GARY DGREEN MALCOLM L H
    • C12N9/74
    • C10G27/12C10G17/02C10G53/04C10G53/14C10G2400/04
    • Sulfur-containing compounds, including specifically thiophenic compounds, in a liquid hydrocarbon feedstream are catalytically oxidized by combining the hydrocarbon feedstream with a catalytic reaction mixture that includes a peroxide that is soluble in water or in a polar organic acid, at least one carboxylic acid, and a catalyst that is a transition metal salt selected from the group consisting of (NH 4 ) 2 WO 4 , (NH 4 ) 6 W 12 O 40 . H 2 O, Na 2 WO 4 , Li 2 WO 4 , K 2 WO 4 , MgWO 4 , (NH 4 ) 2 MoO 4 , (NH 4 ) 6 Mo 7 O 24 . 4H 2 O, MnO 0 and NaVO 3 ; the mixture is vigorously agitated for a time that is sufficient to oxidize the sulfur-containing compounds to form sulfoxides and sulfones; the reaction mixture is allowed to stand and separate into a lower aqueous layer containing the catalyst and an upper hydrocarbon layer that is recovered and from which the oxidized sulfur compounds are removed, as by solvent extraction, distillation or selective adsorption. The process can be used to reduce the sulfur content of liquid transportation fuels to 10 ppm, or less.
    • 通过将烃进料流与包含可溶于水或极性有机酸中的过氧化物的催化反应混合物,至少一种羧酸,或至少一种羧酸混合,催化氧化液态烃进料流中的含硫化合物,特别包括噻吩化合物, 和作为选自(NH 4)4,过渡金属盐(NH 4),(NH 4, 6 W 12 O 40 。 H 2 2 2 4 4 ,Li 2 WO 4 ,K 2,4,4,4,4,4,4,4,5,4, > 4 ,(NH 4 6 Mo 7 0 24 。 4H 2 O,MnO 0和NaVO 3; 剧烈搅拌该混合物一段足以氧化含硫化合物以形成亚砜和砜的时间; 通过溶剂萃取,蒸馏或选择性吸附将反应混合物静置并分离成含有催化剂和回收的上层烃层的下层水层,并从中除去氧化的硫化合物。 该过程可用于将液体运输燃料的硫含量降至10 ppm或更低。