Oxidative desulfurization and denitrogenation of petroleum oils
    1.
    发明授权
    Oxidative desulfurization and denitrogenation of petroleum oils 失效
    石油的氧化脱硫脱氮

    公开(公告)号:US07666297B2

    公开(公告)日:2010-02-23

    申请号:US11643078

    申请日:2006-12-21

    IPC分类号: C10G45/00 C10G17/00

    CPC分类号: C10G27/12

    摘要: An improved oxidative process that employ a robust, non-aqueous, and oil-soluble organic peroxide oxidant for effective desulfurization and denitrogenation of hydrocarbons including petroleum fuels, hydrotreated vacuum gas oil (VGO), non-hydrotreated VGO, petroleum crude oil, synthetic crude oil from oil sand, and residual oil. Even at low concentrations and without the assistance of catalysts, the non-aqueous organic peroxide oxidant is extremely active and fast in oxidizing the sulfur and nitrogen compounds in the hydrocarbon feedstocks. Furthermore, the process generates a valuable organic acid by-product that is also used internally as the extractive solvent for effective removal of the oxidized sulfur and nitrogen from the hydrocarbons without the need of a final adsorption step. Novel process steps are also disclosed to substantially prevent yield loss in the oxidative process.

    摘要翻译: 一种改进的氧化方法,其采用坚固的非水和油溶性有机过氧化物氧化剂,用于有效脱硫和脱氮烃类,包括石油燃料,加氢处理的减压瓦斯油(VGO),非加氢处理的VGO,石油原油,合成原油 油砂油和残油。 即使在低浓度且没有催化剂的帮助下,非水有机过氧化物氧化剂在氧化烃原料中的硫和氮化合物方面是非常活跃和快速的。 此外,该方法产生有价值的有机酸副产物,其也在内部用作萃取溶剂,以有效地从烃中除去氧化的硫和氮,而不需要最终的吸附步骤。 还公开了新的方法步骤以基本上防止氧化过程中的产量损失。

    Oxidative desulfurization and denitrogenation of petroleum oils
    2.
    发明申请
    Oxidative desulfurization and denitrogenation of petroleum oils 失效
    石油的氧化脱硫脱氮

    公开(公告)号:US20070102323A1

    公开(公告)日:2007-05-10

    申请号:US11643078

    申请日:2006-12-21

    IPC分类号: C10G45/00 C10G17/00

    CPC分类号: C10G27/12

    摘要: An improved oxidative process that employ a robust, non-aqueous, and oil-soluble organic peroxide oxidant for effective desulfurization and denitrogenation of hydrocarbons including petroleum fuels, hydrotreated vacuum gas oil (VGO), non-hydrotreated VGO, petroleum crude oil, synthetic crude oil from oil sand, and residual oil. Even at low concentrations and without the assistance of catalysts, the non-aqueous organic peroxide oxidant is extremely active and fast in oxidizing the sulfur and nitrogen compounds in the hydrocarbon feedstocks. Furthermore, the process generates a valuable organic acid by-product that is also used internally as the extractive solvent for effective removal of the oxidized sulfur and nitrogen from the hydrocarbons without the need of a final adsorption step. Novel process steps are also disclosed to substantially prevent yield loss in the oxidative process.

    摘要翻译: 一种改进的氧化方法,其采用坚固的非水和油溶性有机过氧化物氧化剂,用于有效脱硫和脱氮烃类,包括石油燃料,加氢处理的减压瓦斯油(VGO),非加氢处理的VGO,石油原油,合成原油 油砂油和残油。 即使在低浓度且没有催化剂的帮助下,非水有机过氧化物氧化剂在氧化烃原料中的硫和氮化合物方面是非常活跃和快速的。 此外,该方法产生有价值的有机酸副产物,其也在内部用作萃取溶剂,以有效地从烃中除去氧化的硫和氮,而不需要最终的吸附步骤。 还公开了新的方法步骤以基本上防止氧化过程中的产量损失。

    Low-energy extractive distillation process for dehydration of aqueous ethanol
    3.
    发明授权
    Low-energy extractive distillation process for dehydration of aqueous ethanol 有权
    用于乙醇水溶液脱水的低能萃取蒸馏方法

    公开(公告)号:US08002953B2

    公开(公告)日:2011-08-23

    申请号:US11827896

    申请日:2007-07-13

    摘要: An energy-efficient extractive distillation process for producing anhydrous ethanol from aqueous/ethanol feeds containing any range of ethanol employs an extractive distillation column (EDC) that operates under no or greatly reduced liquid reflux conditions. The EDC can be incorporated into an integrated process for producing anhydrous ethanol used for gasoline blending from fermentation broth. By using a high-boiling extractive distillation solvent, no solvent is entrained by the vapor phase to the EDC overhead stream, even under no liquid reflux conditions. The energy requirement and severity of the EDC can be further improved by limiting ethanol recovery in the EDC. In this partial ethanol recovery design, ethanol which remains in the aqueous stream from the EDC is recovered in a post-distillation column or the aqueous stream is recycled to a front-end pre-distillation column where the ethanol is readily recovered since the VLE curve for ethanol/water is extremely favorable for distillation.

    摘要翻译: 从含有任何范围的乙醇的含水/乙醇进料中生产无水乙醇的节能萃取蒸馏方法采用在没有或大大降低的液体回流条件下运行的萃取蒸馏塔(EDC)。 EDC可以并入用于从发酵液中生产用于汽油混合的无水乙醇的整合方法。 通过使用高沸点萃取蒸馏溶剂,即使在没有液体回流条件下,没有溶剂被气相夹带到EDC塔顶馏出物中。 通过限制EDC中的乙醇回收,可以进一步提高EDC的能量需求和严重程度。 在该部分乙醇回收设计中,保留在来自EDC的水流中的乙醇在后蒸馏塔中回收,或将水流循环至前端预蒸馏塔,其中乙醇容易回收,因为VLE曲线 对于乙醇/水非常有利于蒸馏。

    Low-energy extractive distillation process for dehydration of aqueous ethanol
    4.
    发明授权
    Low-energy extractive distillation process for dehydration of aqueous ethanol 失效
    用于乙醇水溶液脱水的低能萃取蒸馏方法

    公开(公告)号:US08172987B2

    公开(公告)日:2012-05-08

    申请号:US13184540

    申请日:2011-07-17

    摘要: An energy-efficient extractive distillation process for producing anhydrous ethanol from aqueous/ethanol feeds containing any range of ethanol employs an extractive distillation column (EDC) that operates under no or greatly reduced liquid reflux conditions. The EDC can be incorporated into an integrated process for producing anhydrous ethanol used for gasoline blending from fermentation broth. By using a high-boiling extractive distillation solvent, no solvent, is entrained by the vapor phase to the EDC overhead stream, even under no liquid reflux conditions. The energy requirement and severity of the EDC can be further improved by limiting ethanol recovery in the EDC. In this partial ethanol recovery design, ethanol which remains in the aqueous stream from the EDC is recovered in a post-distillation column or the aqueous stream is recycled to a front-end pre-distillation column where the ethanol is readily recovered since the VLE curve for ethanol/water is extremely favorable for distillation.

    摘要翻译: 从含有任何范围的乙醇的含水/乙醇进料中生产无水乙醇的节能萃取蒸馏方法采用在没有或大大降低的液体回流条件下运行的萃取蒸馏塔(EDC)。 EDC可以并入用于从发酵液中生产用于汽油混合的无水乙醇的整合方法。 通过使用高沸点萃取蒸馏溶剂,即使在没有液体回流条件下,也没有溶剂被气相夹带到EDC塔顶馏出物中。 通过限制EDC中的乙醇回收,可以进一步提高EDC的能量需求和严重程度。 在该部分乙醇回收设计中,保留在来自EDC的水流中的乙醇在后蒸馏塔中回收,或将水流循环至前端预蒸馏塔,其中乙醇容易回收,因为VLE曲线 对于乙醇/水非常有利于蒸馏。

    Novel Methods for Regeneration of Solvents for Extractive Processes
    5.
    发明申请
    Novel Methods for Regeneration of Solvents for Extractive Processes 有权
    用于萃取过程溶剂再生的新方法

    公开(公告)号:US20120037542A1

    公开(公告)日:2012-02-16

    申请号:US12854150

    申请日:2010-08-10

    IPC分类号: C10G21/28

    摘要: An improved solvent regeneration system for extractive distillation and liquid-liquid extraction processes capable of effectively removing heavy hydrocarbons and polymeric materials that otherwise develop in a closed solvent loop. The improved process employs a light hydrocarbon displacement agent, which is at least partially soluble in the solvent to squeeze the heavy hydrocarbons and polymeric materials out of the solvent, with virtually no additional energy requirement. It has been demonstrated that the light non-aromatic hydrocarbons in the raffinate stream generated from the extractive distillation or the liquid-liquid extractive process for aromatic hydrocarbons recovery can displace not only the heavy non-aromatic hydrocarbons but also the heavy aromatic hydrocarbons from the extractive solvent, especially when the aromatic hydrocarbons in the solvent are in the C10+ molecular weight range.

    摘要翻译: 用于萃取蒸馏和液 - 液萃取方法的改进的溶剂再生系统,其能够有效地除去否则在密闭的溶剂回路中发展的重质烃和聚合材料。 改进的方法采用轻质烃置换剂,其至少部分可溶于溶剂以将重质烃和聚合物材料挤出溶剂,实际上无需额外的能量需求。 已经证明,从萃取蒸馏或用于芳族烃回收的液 - 液萃取过程产生的萃余液流中的轻非芳族烃不仅可以取代重非芳族烃,而且可以取代萃取物中的重芳香烃 溶剂,特别是当溶剂中的芳烃为C10 +分子量范围时。

    Low-Energy Extractive Distillation Process for Dehydration of Aqueous Ethanol
    6.
    发明申请
    Low-Energy Extractive Distillation Process for Dehydration of Aqueous Ethanol 失效
    用于脱水乙醇的低能量萃取蒸馏法

    公开(公告)号:US20110266134A1

    公开(公告)日:2011-11-03

    申请号:US13184540

    申请日:2011-07-17

    IPC分类号: C07C29/84

    摘要: An energy-efficient extractive distillation process for producing anhydrous ethanol from aqueous/ethanol feeds containing any range of ethanol employs an extractive distillation column (EDC) that operates under no or greatly reduced liquid reflux conditions. The EDC can be incorporated into an integrated process for producing anhydrous ethanol used for gasoline blending from fermentation broth. By using a high-boiling extractive distillation solvent, no solvent, is entrained by the vapor phase to the EDC overhead stream, even under no liquid reflux conditions. The energy requirement and severity of the EDC can be further improved by limiting ethanol recovery in the EDC. In this partial ethanol recovery design, ethanol which remains in the aqueous stream from the EDC is recovered in a post-distillation column or the aqueous stream is recycled to a front-end pre-distillation column where the ethanol is readily recovered since the VLE curve for ethanol/water is extremely favorable for distillation.

    摘要翻译: 从含有任何范围的乙醇的含水/乙醇进料中生产无水乙醇的节能萃取蒸馏方法采用在没有或大大降低的液体回流条件下运行的萃取蒸馏塔(EDC)。 EDC可以并入用于从发酵液中生产用于汽油混合的无水乙醇的整合方法。 通过使用高沸点萃取蒸馏溶剂,即使在没有液体回流条件下,也没有溶剂被气相夹带到EDC塔顶馏出物中。 通过限制EDC中的乙醇回收,可以进一步提高EDC的能量需求和严重程度。 在该部分乙醇回收设计中,保留在来自EDC的水流中的乙醇在后蒸馏塔中回收,或将水流循环至前端预蒸馏塔,其中乙醇容易回收,因为VLE曲线 对于乙醇/水非常有利于蒸馏。

    Low-energy extractive distillation process for dehydration of aqueous ethanol
    7.
    发明申请
    Low-energy extractive distillation process for dehydration of aqueous ethanol 有权
    用于乙醇水溶液脱水的低能萃取蒸馏方法

    公开(公告)号:US20090014313A1

    公开(公告)日:2009-01-15

    申请号:US11827896

    申请日:2007-07-13

    IPC分类号: C07C31/08

    摘要: An energy-efficient extractive distillation process for producing anhydrous ethanol from aqueous/ethanol feeds containing any range of ethanol employs an extractive distillation column (EDC) that operates under no or greatly reduced liquid reflux conditions. The EDC can be incorporated into an integrated process for producing anhydrous ethanol used for gasoline blending from fermentation broth. By using a high-boiling extractive distillation solvent, no solvent is entrained by the vapor phase to the EDC overhead stream, even under no liquid reflux conditions. The energy requirement and severity of the EDC can be further improved by limiting ethanol recovery in the EDC. In this partial ethanol recovery design, ethanol which remains in the aqueous stream from the EDC is recovered in a post-distillation column or the aqueous stream is recycled to a front-end pre-distillation column where the ethanol is readily recovered since the VLE curve for ethanol/water is extremely favorable for distillation.

    摘要翻译: 从含有任何范围的乙醇的含水/乙醇进料中生产无水乙醇的节能萃取蒸馏方法采用在没有或大大降低的液体回流条件下运行的萃取蒸馏塔(EDC)。 EDC可以并入用于从发酵液中生产用于汽油混合的无水乙醇的整合方法。 通过使用高沸点萃取蒸馏溶剂,即使在没有液体回流条件下,没有溶剂被气相夹带到EDC塔顶馏出物中。 通过限制EDC中的乙醇回收,可以进一步提高EDC的能量需求和严重程度。 在该部分乙醇回收设计中,保留在来自EDC的水流中的乙醇在后蒸馏塔中回收,或将水流循环至前端预蒸馏塔,其中乙醇容易回收,因为VLE曲线 对于乙醇/水非常有利于蒸馏。

    Methods for regeneration of solvents for extractive processes
    8.
    发明授权
    Methods for regeneration of solvents for extractive processes 有权
    萃取过程溶剂再生方法

    公开(公告)号:US08246815B2

    公开(公告)日:2012-08-21

    申请号:US12854150

    申请日:2010-08-10

    IPC分类号: C10G51/02

    摘要: An improved solvent regeneration system for extractive distillation and liquid-liquid extraction processes capable of effectively removing heavy hydrocarbons and polymeric materials that otherwise develop in a closed solvent loop. The improved process employs a light hydrocarbon displacement agent, which is at least partially soluble in the solvent to squeeze the heavy hydrocarbons and polymeric materials out of the solvent, with virtually no additional energy requirement. It has been demonstrated that the light non-aromatic hydrocarbons in the raffinate stream generated from the extractive distillation or the liquid-liquid extractive process for aromatic hydrocarbons recovery can displace not only the heavy non-aromatic hydrocarbons but also the heavy aromatic hydrocarbons from the extractive solvent, especially when the aromatic hydrocarbons in the solvent are in the C10+ molecular weight range.

    摘要翻译: 用于萃取蒸馏和液 - 液萃取方法的改进的溶剂再生系统,其能够有效地除去否则在密闭的溶剂回路中发展的重质烃和聚合材料。 改进的方法采用轻质烃置换剂,其至少部分可溶于溶剂以将重质烃和聚合物材料挤出溶剂,实际上无需额外的能量需求。 已经证明,从萃取蒸馏或用于芳族烃回收的液 - 液萃取过程产生的萃余液流中的轻非芳族烃不仅可以取代重非芳族烃,而且可以取代萃取物中的重芳香烃 溶剂,特别是当溶剂中的芳烃为C10 +分子量范围时。

    Energy efficient and throughput enhancing extractive process for aromatics recovery
    9.
    发明授权
    Energy efficient and throughput enhancing extractive process for aromatics recovery 有权
    能量效率和通量提高芳烃回收的萃取过程

    公开(公告)号:US07879225B2

    公开(公告)日:2011-02-01

    申请号:US12217676

    申请日:2008-07-08

    IPC分类号: C10G21/28

    摘要: An energy efficient, high throughput process for aromatics recovery can be readily implemented by revamping existing sulfolane solvent extraction facilities, or constructing new ones, so as to incorporate unique process operations involving liquid-liquid extraction and extractive distillation. Current industrial sulfolane solvent based liquid-liquid extraction processes employ a liquid-liquid extraction column, an extractive stripping column, a solvent recovery column, a raffinate wash column, and a solvent regenerator. The improved process for aromatic hydrocarbon recovery from a mixture of aromatic and non-aromatic hydrocarbons requires transformation of the extractive stripping column into a modified extractive distillation column. The revamping incorporates the unique advantages of liquid-liquid extraction and extractive distillation into one process to significantly reduce energy consumption and increase process throughput. The revamp entails essentially only piping changes and minor equipment adjustments of the original liquid-liquid extraction facility, and is therefore, reversible.

    摘要翻译: 通过改进现有的环丁砜溶剂萃取设备或构建新的环丁砜溶剂萃取设备,可以容易地实现能量效率高的芳烃回收方法,从而引入独特的工艺操作,包括液 - 液萃取和萃取蒸馏。 当前工业环丁砜溶剂型液 - 液萃取方法采用液 - 液萃取柱,萃取汽提塔,溶剂回收塔,萃余液洗涤塔和溶剂再生器。 从芳烃和非芳烃的混合物中回收芳烃的改进方法需要将萃取汽提塔转化为改进的萃取蒸馏塔。 改造将液 - 液萃取和萃取蒸馏的独特优势融入到一个过程中,以显着降低能耗并提高生产能力。 改造只需要对原液 - 液萃取设备进行管道更换和小型设备调整,因此是可逆的。

    Novel energy efficient and throughput enhancing extractive process for aromatics recovery
    10.
    发明申请
    Novel energy efficient and throughput enhancing extractive process for aromatics recovery 有权
    用于芳烃回收的新型能量效率和通量提高萃取方法

    公开(公告)号:US20090255853A1

    公开(公告)日:2009-10-15

    申请号:US12217676

    申请日:2008-07-08

    IPC分类号: C10G21/28

    摘要: An energy efficient, high throughput process for aromatics recovery can be readily implemented by revamping existing sulfolane solvent extraction facilities, or constructing new ones, so as to incorporate unique process operations involving liquid-liquid extraction and extractive distillation. Current industrial sulfolane solvent based liquid-liquid extraction processes employ a liquid-liquid extraction column, an extractive stripping column, a solvent recovery column, a raffinate wash column, and a solvent regenerator. The improved process for aromatic hydrocarbon recovery from a mixture of aromatic and non-aromatic hydrocarbons requires transformation of the extractive stripping column into a modified extractive distillation column. The revamping incorporates the unique advantages of liquid-liquid extraction and extractive distillation into one process to significantly reduce energy consumption and increase process throughput. The revamp entails essentially only piping changes and minor equipment adjustments of the original liquid-liquid extraction facility, and is therefore, reversible.

    摘要翻译: 通过改进现有的环丁砜溶剂萃取设备或构建新的环丁砜溶剂萃取设备,可以容易地实现能量效率高的芳烃回收方法,从而引入独特的工艺操作,包括液 - 液萃取和萃取蒸馏。 当前工业环丁砜溶剂型液 - 液萃取方法采用液 - 液萃取柱,萃取汽提塔,溶剂回收塔,萃余液洗涤塔和溶剂再生器。 从芳烃和非芳烃的混合物中回收芳烃的改进方法需要将萃取汽提塔转化为改进的萃取蒸馏塔。 改造将液 - 液萃取和萃取蒸馏的独特优势融入到一个过程中,以显着降低能耗并提高生产能力。 改造只需要对原液 - 液萃取设备进行管道更换和小型设备调整,因此是可逆的。