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公开(公告)号：US07491369B2
公开(公告)日：2009-02-17
申请号：US11846851
申请日：2007-08-29
CPC分类号： B01J10/002 , B01J4/002 , B01J8/007 , B01J8/1818 , B01J8/1827 , B01J8/22 , B01J8/26 , B01J8/30 , B01J19/26 , B01J2219/0004 , B01J2219/00245 , C07C51/265 , C07C63/26
摘要： Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
摘要翻译： 公开了一种用于更有效和经济地进行可氧化化合物的液相氧化的优化方法和装置。 这种液相氧化在气泡塔反应器中进行，其在相对低的温度下提供高效反应。 当氧化的化合物是对二甲苯并且来自氧化反应的产物是粗对苯二甲酸（CTA）时，可以通过更经济的技术将这种CTA产物纯化和分离，如果CTA通过常规的高温 氧化过程。
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2.发明授权公开(公告)号：US07358389B2
公开(公告)日：2008-04-15
申请号：US11365461
申请日：2006-03-01
IPC分类号： C07C51/16
CPC分类号： B01J8/22 , B01J4/002 , B01J8/007 , B01J8/1818 , B01J8/1827 , B01J8/26 , B01J8/30 , B01J10/002 , B01J19/26 , B01J2219/0004 , B01J2219/00245 , C07C51/265 , C07C63/26
摘要： Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
摘要翻译： 公开了一种用于更有效和经济地进行可氧化化合物的液相氧化的优化方法和装置。 这种液相氧化在气泡塔反应器中进行，其在相对低的温度下提供高效反应。 当氧化的化合物是对二甲苯并且来自氧化反应的产物是粗对苯二甲酸（CTA）时，可以通过更经济的技术将这种CTA产物纯化和分离，如果CTA通过常规的高温 氧化过程。
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公开(公告)号：US07355068B2
公开(公告)日：2008-04-08
申请号：US11365350
申请日：2006-03-01
IPC分类号： C07C51/16
CPC分类号： B01J10/002 , B01J4/002 , B01J8/007 , B01J8/1818 , B01J8/1827 , B01J8/22 , B01J8/26 , B01J8/30 , B01J19/26 , B01J2219/0004 , B01J2219/00245 , C07C51/265 , C07C63/26
摘要： Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
摘要翻译： 公开了一种用于更有效和经济地进行可氧化化合物的液相氧化的优化方法和装置。 这种液相氧化在气泡塔反应器中进行，其在相对低的温度下提供高效反应。 当氧化的化合物是对二甲苯并且来自氧化反应的产物是粗对苯二甲酸（CTA）时，可以通过更经济的技术将这种CTA产物纯化和分离，如果CTA通过常规的高温 氧化过程。
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4.发明申请公开(公告)号：US20070244340A1
公开(公告)日：2007-10-18
申请号：US11365698
申请日：2006-03-01
申请人： Alan George Wonders , Ronald Buford Sheppard , Thomas Earl Woodruff , Martin De Boer , Raymond Elbert Fogle , Philip Edward Gibson , Kenny Randolph Parker
发明人： Alan George Wonders , Ronald Buford Sheppard , Thomas Earl Woodruff , Martin De Boer , Raymond Elbert Fogle , Philip Edward Gibson , Kenny Randolph Parker
IPC分类号： C07C51/16 , C07C51/255
CPC分类号： C07C51/265 , C07C51/44 , C07C63/26
摘要： Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. The system employs an evaporative removal step downstream of oxidative digestion. The evaporative removal step removes a portion of the liquid phase and promotes precipitation of certain aromatic impurities. By promoting precipitation of certain aromatic impurities, the amount of the precipitated impurities in the recycled solvent is advantageously reduced.
摘要翻译： 公开了一种更有效和经济地生产对苯二甲酸的优化系统。 该系统采用氧化消解下游的蒸发去除步骤。 蒸发除去步骤除去一部分液相并促进某些芳族杂质的沉淀。 通过促进某些芳族杂质的析出，有利地减少了再循环溶剂中析出的杂质的量。
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5.发明授权Polycarboxylic acid production system employing enhanced multistage oxidative digestion 有权采用增强多级氧化消化的多羧酸生产系统公开(公告)号：US07816556B2
公开(公告)日：2010-10-19
申请号：US11365248
申请日：2006-03-01
申请人： Alan George Wonders , Ronald Buford Sheppard , Thomas Earl Woodruff , Martin De Boer , Raymond Elbert Fogle
发明人： Alan George Wonders , Ronald Buford Sheppard , Thomas Earl Woodruff , Martin De Boer , Raymond Elbert Fogle
IPC分类号： C07C51/16
CPC分类号： C07C51/265 , C07C51/487 , C07C63/26
摘要： Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. The system includes a multi-stage oxidative digestion system for processing an improved initial slurry from primary oxidation. The multi-stage digestion system is capable of adequately purifying the improved initial slurry without requiring significant liquor exchange between primary oxidation and oxidative digestion.
摘要翻译： 公开了一种更有效和经济地生产对苯二甲酸的优化系统。 该系统包括用于处理来自初级氧化的改进的初始浆料的多级氧化消化系统。 多级消化系统能够充分纯化改进的初始浆液，而不需要在初级氧化和氧化消化之间进行显着的液体交换。
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6.发明授权公开(公告)号：US07772424B2
公开(公告)日：2010-08-10
申请号：US11365698
申请日：2006-03-01
申请人： Alan George Wonders , Ronald Buford Sheppard , Thomas Earl Woodruff , Martin De Boer , Raymond Elbert Fogle , Philip Edward Gibson , Kenny Randolph Parker
发明人： Alan George Wonders , Ronald Buford Sheppard , Thomas Earl Woodruff , Martin De Boer , Raymond Elbert Fogle , Philip Edward Gibson , Kenny Randolph Parker
IPC分类号： C07C51/16
CPC分类号： C07C51/265 , C07C51/44 , C07C63/26
摘要： Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. The system employs an evaporative removal step downstream of oxidative digestion. The evaporative removal step removes a portion of the liquid phase and promotes precipitation of certain aromatic impurities. By promoting precipitation of certain aromatic impurities, the amount of the precipitated impurities in the recycled solvent is advantageously reduced.
摘要翻译： 公开了一种更有效和经济地生产对苯二甲酸的优化系统。 该系统采用氧化消解下游的蒸发去除步骤。 蒸发除去步骤除去一部分液相并促进某些芳族杂质的沉淀。 通过促进某些芳族杂质的析出，有利地减少了再循环溶剂中析出的杂质的量。
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公开(公告)号：US20100087675A1
公开(公告)日：2010-04-08
申请号：US12556096
申请日：2009-09-09
IPC分类号： C07C51/255
CPC分类号： C07C51/265 , C07C63/24 , C07C63/26 , C07C63/15
摘要： The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant. Optionally, PET off-gas containing the water of PET formation is treated in a shared thermal oxidative destruction unit, effectively eliminating normal flow of liquid wastewater effluent from a combined pX-to-TPA-to-PET plant.
摘要翻译： 本发明提供了来自二甲苯氧化反应的废气的改进的能量含量和轴功率回收，同时使废水处理成本最小化。 即使使用优选的相对低的氧化温度，也可以使用除了驱动主空气压缩机所需的废气以外的更多的轴功率。 同时，大量来自二氧化碳氧化的副产物水的废水保持蒸气形式，并在自持（自燃）气相热氧化破坏装置中与废气污染物一起处理。 任选地，废气从包括初级和/或二级氧化反应器并形成TPA和/或IPA的多个二甲苯氧化反应器组合。 任选地，空气压缩机冷凝物和苛性碱洗涤器排污用于TPA方法或作为效用水，有效地消除了来自TPA设备的液体废水流出物的正常流动。 任选地，在共同的热氧化破坏单元中处理含有PET形成水的PET废气，有效地消除了从组合的pX到TPA到PET植物的液体废水流出物的正常流动。
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8.发明授权公开(公告)号：US07420082B2
公开(公告)日：2008-09-02
申请号：US11365258
申请日：2006-03-01
CPC分类号： C07C51/265 , C07C51/42 , C07C63/26
摘要： Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. The system includes an optimized post-digestion cooling stage that provides a TPA product having enhanced purity, while minimizing costs associated with removing impurities from recycled solvent.
摘要翻译： 公开了一种更有效和经济地生产对苯二甲酸的优化系统。 该系统包括优化的消化后冷却阶段，其提供具有增强的纯度的TPA产物，同时最小化从再循环溶剂中除去杂质所涉及的成本。
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公开(公告)号：US20100113824A1
公开(公告)日：2010-05-06
申请号：US12556099
申请日：2009-09-09
IPC分类号： C07C51/16
CPC分类号： C07C51/265 , C07C63/26 , C07C63/15
摘要： The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant. Optionally, PET off-gas containing the water of PET formation is treated in a shared thermal oxidative destruction unit, effectively eliminating normal flow of liquid wastewater effluent from a combined pX-to-TPA-to-PET plant.
摘要翻译： 本发明提供了来自二甲苯氧化反应的废气的改进的能量含量和轴功率回收，同时使废水处理成本最小化。 即使使用优选的相对低的氧化温度，也可以使用除了驱动主空气压缩机所需的废气以外的更多的轴功率。 同时，大量来自二氧化碳氧化的副产物水的废水保持蒸气形式，并在自持（自燃）气相热氧化破坏装置中与废气污染物一起处理。 任选地，废气从包括初级和/或二级氧化反应器并形成TPA和/或IPA的多个二甲苯氧化反应器组合。 任选地，空气压缩机冷凝物和苛性碱洗涤器排污用于TPA方法或作为效用水，有效地消除了来自TPA设备的液体废水流出物的正常流动。 任选地，在共同的热氧化破坏单元中处理含有PET形成水的PET废气，有效地消除了从组合的pX到TPA到PET植物的液体废水流出物的正常流动。
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公开(公告)号：US08236921B1
公开(公告)日：2012-08-07
申请号：US13435095
申请日：2012-03-30
CPC分类号： C07C51/265 , C08G63/181 , C08G63/78 , C07C63/26 , C07C63/24
摘要： The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA.
摘要翻译： 本发明提供了来自二甲苯氧化反应的废气的改进的能量含量和轴功率回收，同时使废水处理成本最小化。 即使使用优选的相对低的氧化温度，也可以使用除了驱动主空气压缩机所需的废气以外的更多的轴功率。 同时，大量来自二氧化碳氧化的副产物水的废水保持蒸气形式，并在自持（自燃）气相热氧化破坏装置中与废气污染物一起处理。 任选地，废气从包括初级和/或二级氧化反应器并形成TPA和/或IPA的多个二甲苯氧化反应器组合。
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