RU2003112227A - METHOD FOR OXIDATIVE SULFURING OF FOSSIL FUELS WITH USE OF ULTRASOUND - Google Patents

METHOD FOR OXIDATIVE SULFURING OF FOSSIL FUELS WITH USE OF ULTRASOUND

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Publication number
RU2003112227A
RU2003112227A RU2003112227/04A RU2003112227A RU2003112227A RU 2003112227 A RU2003112227 A RU 2003112227A RU 2003112227/04 A RU2003112227/04 A RU 2003112227/04A RU 2003112227 A RU2003112227 A RU 2003112227A RU 2003112227 A RU2003112227 A RU 2003112227A
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Russia
Prior art keywords
stage
fossil fuel
reaction medium
liquid
multiphase reaction
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RU2003112227/04A
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Russian (ru)
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RU2235754C1 (en
Inventor
Те Фу ЕН
Хай МЕЙ
Стив Хунг-Моу ЛУ
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Сальфко, Инк.
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Priority claimed from US09/676,260 external-priority patent/US6402939B1/en
Application filed by Сальфко, Инк. filed Critical Сальфко, Инк.
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Publication of RU2235754C1 publication Critical patent/RU2235754C1/en
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Claims (33)

1. Способ удаления сульфидов из жидких ископаемых топлив, отличающийся тем, что включает следующие стадии: a) сочетание указанного ископаемого топлива с подкисленным водным раствором, содержащим воду и гидропероксид, с целью получения многофазной реакционной среды, причем водный раствор имеет значение рН, равное значению рН для водного раствора 1-3 об.% пероксида водорода, b) воздействие ультразвука на многофазную реакционную среду в течение времени, достаточного для окисления сульфидов в ископаемом топливе в сульфоны, и c) экстракцию сульфонов с целью получения органической фазы, практически не содержащей сульфонов.1. A method for removing sulfides from liquid fossil fuels, characterized in that it comprises the following steps: a) combining said fossil fuel with an acidified aqueous solution containing water and hydroperoxide to obtain a multiphase reaction medium, wherein the aqueous solution has a pH value equal to pH for an aqueous solution of 1-3 vol.% hydrogen peroxide, b) the effect of ultrasound on a multiphase reaction medium for a time sufficient to oxidize sulfides in fossil fuels to sulfones, and c) extraction of sulfo new in order to obtain an organic phase that is practically free of sulfones. 2. Способ по п.1, отличающийся тем, что гидропероксид выбирают из группы, состоящей из пероксида водорода и водорастворимых алкилгидропероксидов.2. The method according to claim 1, characterized in that the hydroperoxide is selected from the group consisting of hydrogen peroxide and water-soluble alkyl hydroperoxides. 3. Способ по п.1, отличающийся тем, что гидропероксид выбирают из группы, состоящей из пероксида водорода и третичного алкилгидропероксида.3. The method according to claim 1, characterized in that the hydroperoxide is selected from the group consisting of hydrogen peroxide and tertiary alkyl hydroperoxide. 4. Способ по п.1, отличающийся тем, что гидропероксид выбирают из группы, состоящей из пероксида водорода и третичного бутилгидропероксида.4. The method according to claim 1, characterized in that the hydroperoxide is selected from the group consisting of hydrogen peroxide and tertiary butyl hydroperoxide. 5. Способ по п.1, отличающийся тем, что гидропероксид представляет собой пероксид водорода.5. The method according to claim 1, characterized in that the hydroperoxide is hydrogen peroxide. 6. Способ по п.1, отличающийся тем, что дополнительно включает в себя сочетание агента фазового переноса с жидким ископаемым топливом и подкисленным водным раствором, с целью получения многофазной реакционной среды.6. The method according to claim 1, characterized in that it further includes a combination of a phase transfer agent with liquid fossil fuel and an acidified aqueous solution, in order to obtain a multiphase reaction medium. 7. Способ по п.6, отличающийся тем, что агент фазового переноса представляет собой катионный агент.7. The method according to claim 6, characterized in that the phase transfer agent is a cationic agent. 8. Способ по п.7, отличающийся тем, что катионный агент фазового переноса представляет собой соль четвертичного аммония.8. The method according to claim 7, characterized in that the cationic phase transfer agent is a Quaternary ammonium salt. 9. Способ по п.8, отличающийся тем, что соль четвертичного аммония представляет собой галогенид тетраалкиламмония.9. The method of claim 8, wherein the quaternary ammonium salt is a tetraalkylammonium halide. 10. Способ по п.1, отличающийся тем, что жидкое ископаемое топливо и подкисленный водный раствор на стадии а) взяты в объемном соотношении приблизительно от 1:1 до 1:3.10. The method according to claim 1, characterized in that the liquid fossil fuel and acidified aqueous solution in stage a) are taken in a volume ratio of from about 1: 1 to 1: 3. 11. Способ по п.1, отличающийся тем, что стадия а) включает в себя сочетание: жидкое ископаемое топливо и подкисленный водный раствор на стадии а) взяты в объемном соотношении приблизительно от 1:1,5 до 1:2,5.11. The method according to claim 1, characterized in that stage a) includes a combination of: liquid fossil fuel and an acidified aqueous solution in stage a) taken in a volume ratio of from about 1: 1.5 to 1: 2.5. 12. Способ по п.1, отличающийся тем, что стадию b) осуществляют без нагревания многофазной реакционной среды из внешнего источника тепла.12. The method according to claim 1, characterized in that stage b) is carried out without heating a multiphase reaction medium from an external heat source. 13. Способ по п.1, отличающийся тем, что стадию b) осуществляют при охлаждении многофазной реакционной среды путем теплового контакта с охлаждающей средой при температуре 50°С или ниже.13. The method according to claim 1, characterized in that stage b) is carried out by cooling a multiphase reaction medium by thermal contact with a cooling medium at a temperature of 50 ° C or lower. 14. Способ по п.1, отличающийся тем, что стадию b) осуществляют при охлаждении многофазной реакционной среды путем теплового контакта с охлаждающей средой при температуре 20°С или ниже.14. The method according to claim 1, characterized in that stage b) is carried out by cooling a multiphase reaction medium by thermal contact with a cooling medium at a temperature of 20 ° C or lower. 15. Способ по п.1, отличающийся тем, что стадию b) осуществляют при охлаждении многофазной реакционной среды путем теплового контакта с охлаждающей средой при температуре приблизительно от -5 до 20°С.15. The method according to claim 1, characterized in that stage b) is carried out by cooling a multiphase reaction medium by thermal contact with a cooling medium at a temperature of from about -5 to 20 ° C. 16. Способ по п.1, отличающийся тем, что стадия b) включает в себя воздействие ультразвука с частотой приблизительно от 20 до 200 кГц.16. The method according to claim 1, characterized in that stage b) includes the action of ultrasound with a frequency of from about 20 to 200 kHz. 17. Способ по п.1, отличающийся тем, что стадия b) включает в себя воздействие ультразвука с частотой приблизительно от 20 до 200 кГц, при интенсивности приблизительно от 30 до 300 Вт/см2.17. The method according to claim 1, characterized in that stage b) includes the action of ultrasound with a frequency of from about 20 to 200 kHz, with an intensity of from about 30 to 300 W / cm 2 . 18. Способ по п.1, отличающийся тем, что стадия b) включает в себя воздействие ультразвука с частотой приблизительно от 20 до 50 кГц.18. The method according to claim 1, characterized in that stage b) includes exposure to ultrasound with a frequency of from about 20 to 50 kHz. 19. Способ по п.1, отличающийся тем, что стадия b) включает в себя воздействие ультразвука с частотой приблизительно от 20 до 50 кГц, при интенсивности приблизительно от 50 до 100 Вт/см2.19. The method according to claim 1, characterized in that stage b) includes the action of ultrasound with a frequency of from about 20 to 50 kHz, with an intensity of from about 50 to 100 W / cm 2 . 20. Способ по п.1, отличающийся тем, что стадия с) включает i) разделение фаз многофазной реакционной среды на органическую и водную фазы и ii) экстракцию указанных сульфонов из органической фазы.20. The method according to claim 1, characterized in that stage c) comprises i) separating the phases of the multiphase reaction medium into organic and aqueous phases; and ii) extracting said sulfones from the organic phase. 21. Способ по п.20, отличающийся тем, что i) включает в себя экстракцию сульфонов методом жидкость-жидкостной экстракции полярным растворителем.21. The method according to claim 20, characterized in that i) includes the extraction of sulfones by liquid-liquid extraction with a polar solvent. 22. Способ по п.20, отличающийся тем, что i) включает в себя экстракцию сульфонов методом твердо-жидкостной экстракции силикагелем.22. The method according to claim 20, characterized in that i) includes the extraction of sulfones by the method of solid-liquid extraction with silica gel. 23. Способ по п.1, отличающийся тем, что дополнительно включает в себя сочетание каталитического количества металлического катализатора, выбранного из группы, состоящей из соединений железа (II), железа (III), меди (I), меди (II), хрома (III), хрома (VI), и молибдатов, вольфраматов и ванадатов, с указанным жидким ископаемым топливом и подкисленным водным раствором с образованием многофазной реакционной среды.23. The method according to claim 1, characterized in that it further includes a combination of a catalytic amount of a metal catalyst selected from the group consisting of compounds of iron (II), iron (III), copper (I), copper (II), chromium (III), chromium (VI), and molybdates, tungstates and vanadates, with the specified liquid fossil fuel and acidified aqueous solution with the formation of a multiphase reaction medium. 24. Способ по п.23, отличающийся тем, что металлический катализатор выбирают из группы, состоящей из соединений железа (П), железа (III), меди (II) и вольфраматов.24. The method according to item 23, wherein the metal catalyst is selected from the group consisting of compounds of iron (P), iron (III), copper (II) and tungstates. 25. Способ по п.23, отличающийся тем, что металлическим катализатором является вольфрамат.25. The method according to item 23, wherein the metal catalyst is tungstate. 26. Способ по п.1, отличающийся тем, что жидкое ископаемое топливо выбирают из группы, состоящей из сырой нефти, битуминозных сланцев, дизельного топлива, бензина, керосина, сжиженного нефтяного газа и котельных топлив на основе нефтяных остатков.26. The method according to claim 1, characterized in that the liquid fossil fuel is selected from the group consisting of crude oil, tar shale, diesel fuel, gasoline, kerosene, liquefied petroleum gas and boiler fuels based on oil residues. 27. Способ по п.1, отличающийся тем, что жидкое ископаемое топливо выбирают из группы, состоящей из дизельного топлива, бензина, керосина, и котельных топлив на основе нефтяных остатков.27. The method according to claim 1, characterized in that the liquid fossil fuel is selected from the group consisting of diesel fuel, gasoline, kerosene, and boiler fuels based on oil residues. 28. Способ по п.1, отличающийся тем, что жидкое ископаемое топливо представляет собой сырую нефть.28. The method according to claim 1, characterized in that the liquid fossil fuel is a crude oil. 29. Способ по п.1, отличающийся тем, что жидкое ископаемое топливо представляет собой дизельное топливо.29. The method according to claim 1, characterized in that the liquid fossil fuel is diesel fuel. 30. Способ по п.1, отличающийся тем, что жидкое ископаемое топливо представляет собой котельное топливо №6 (бункерное топливо С).30. The method according to claim 1, characterized in that the liquid fossil fuel is a boiler fuel No. 6 (bunker fuel C). 31. Способ по п.1, отличающийся тем, что жидкое ископаемое топливо представляет собой вакуумный остаток от перегонки нефти.31. The method according to claim 1, characterized in that the liquid fossil fuel is a vacuum residue from the distillation of oil. 32. Способ по п.1, отличающийся тем, что время стадии b) составляет меньше 20 мин.32. The method according to claim 1, characterized in that the time of stage b) is less than 20 minutes 33. Способ по п.1, отличающийся тем, что время стадии b) составляет менее 10 мин.33. The method according to claim 1, characterized in that the time of stage b) is less than 10 minutes
RU2003112227/04A 2000-09-28 2001-09-24 Method for ultrasound-assisted oxidative desulfurization of fossil fuels RU2235754C1 (en)

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