公开(公告)号：US06303841B1

公开(公告)日：2001-10-16

申请号：US09411123

申请日：1999-10-04

申请人： John J. Senetar ,  Lawrence W. Miller ,  Linda Shi Cheng ,  Mark M. Davis

发明人： John J. Senetar ,  Lawrence W. Miller ,  Linda Shi Cheng ,  Mark M. Davis

IPC分类号： C07C100

CPC分类号： C07C11/04 ,  C07C2521/04 ,  C07C2521/08 ,  C07C2521/18 ,  C07C2529/08 ,  Y02P30/42

摘要： A process is provided for the concentration and recovery of ethylene and heavier components from an oxygenate conversion process. A separation process such as a pressure swing adsorption (PSA) process is used to remove hydrogen and methane from a demethanizer overhead stream comprising hydrogen, methane, and C2 hydrocarbons and subsequently return the recovered C2 hydrocarbons to be admixed with the effluent from the oxygenate conversion process. This integration of a separation zone with a fractionation scheme in an ethylene recovery scheme using an initial demethanizer zone resulted in significant capital and operating cost savings by the elimination of cryogenic ethylene-based refrigeration from the overall recovery scheme.

摘要翻译： 提供了从含氧化合物转化过程中浓缩和回收乙烯和较重组分的方法。 使用诸如变压吸附（PSA）方法的分离方法从包含氢气，甲烷和C 2 烃的脱甲烷塔塔里流中除去氢气和甲烷，然后将回收的C 2 / / SMALLCAPS>烃与来自含氧化合物转化过程的流出物混合。 在使用初始脱甲烷塔区域的乙烯回收方案中，分离区与分馏方案的整合通过从整体回收方案中消除基于低温乙烯的制冷而节省了大量的资本和运营成本。

公开(公告)号：US08609925B2

公开(公告)日：2013-12-17

申请号：US12165412

申请日：2008-06-30

申请人： Linda Shi Cheng ,  James A. Johnson

发明人： Linda Shi Cheng ,  James A. Johnson

IPC分类号： C07C7/13 ,  C07C7/12

CPC分类号： B01J20/186 ,  B01J20/183 ,  B01J20/28004 ,  C07C7/13 ,  C07C15/08

摘要： Adsorbents and methods for the adsorptive separation of para-xylene from a mixture containing at least one other C8 aromatic hydrocarbon (e.g., a mixture of ortho-xylene, meta-xylene, para-xylene, and ethylbenzene) are described. Suitable adsorbents comprise zeolite X having an average crystallite size of less than 1.8 microns. The adsorbents provide improved mass transfer, which is especially advantageous for improving productivity in low temperature, low cycle time adsorptive separation operations in a simulated moving bed mode.

摘要翻译： 描述了从含有至少一种其它C 8芳族烃（例如邻二甲苯，间二甲苯，对二甲苯和乙苯的混合物）的混合物吸附分离对二甲苯的吸附剂和方法。 合适的吸附剂包括平均微晶尺寸小于1.8微米的沸石X. 吸附剂提供改进的质量传递，这特别有利于在模拟移动床模式中提高低温，低循环时间吸附分离操作的生产率。

公开(公告)号：US06444869B2

公开(公告)日：2002-09-03

申请号：US09909249

申请日：2001-07-19

申请人： John J. Senetar ,  Lawrence W. Miller ,  Linda Shi Cheng ,  Mark M. Davis

发明人： John J. Senetar ,  Lawrence W. Miller ,  Linda Shi Cheng ,  Mark M. Davis

IPC分类号： C07C700

CPC分类号： C07C11/04 ,  C07C2521/04 ,  C07C2521/08 ,  C07C2521/18 ,  C07C2529/08 ,  Y02P30/42

摘要： A process is provided for the concentration and recovery of ethylene and heavier components from an oxygenate conversion process. A separation process such as a pressure swing adsorption (PSA) process is used to remove hydrogen and methane from a demethanizer overhead stream comprising hydrogen, methane and C2 hydrocarbons and subsequently return the recovered C2 hydrocarbons to be admixed with the effluent from the oxygenate conversion process. This integration of a separation zone with a fractionation scheme in an ethylene recovery scheme using an initial demethanizer zone resulted in significant capital and operating cost savings by the elimination of cryogenic ethylene-based refrigeration from the overall recovery scheme.

摘要翻译： 提供了从含氧化合物转化过程中浓缩和回收乙烯和较重组分的方法。 使用诸如变压吸附（PSA）方法的分离方法从包含氢气，甲烷和C 2烃的脱甲烷塔塔顶流中除去氢气和甲烷，随后将回收的C2烃与来自含氧化合物转化过程的流出物混合 。 在使用初始脱甲烷塔区域的乙烯回收方案中，分离区与分馏方案的整合通过从整体回收方案中消除基于低温乙烯的制冷而节省了大量的资本和运营成本。

公开(公告)号：US20120330081A1

公开(公告)日：2012-12-27

申请号：US13604039

申请日：2012-09-05

申请人： Linda Shi Cheng ,  Jack Hurst

发明人： Linda Shi Cheng ,  Jack Hurst

IPC分类号： C07C7/12

CPC分类号： B01D15/185 ,  B01J20/183 ,  B01J20/186 ,  B01J20/2803 ,  B01J20/28071 ,  B01J20/28085 ,  B01J20/3028 ,  B01J29/20 ,  C01B39/22 ,  C07C7/13 ,  C07C15/08 ,  C07C2523/02 ,  C07C2523/04 ,  C07C2529/08 ,  Y02P20/52

摘要： Binderless BaKX zeolitic adsorbents, methods for their production, and processes for their use in a liquid phase adsorptive separation process are provided. An adsorbent includes a binder-converted zeolite portion formed from x wt % kaolin clay binder and (100−x) wt % unconverted Zeolite X with a silica:alumina molar ratio of about 2.5. The kaolin clay binder is in the range of about 10 to about 20 wt %. Ba and K occupy cationic exchangeable sites within the adsorbent. K is in the range of about 0.25 to about 0.9% by weight and Ba is greater than about 31.6% by weight of the binderless BaKX zeolitic adsorbent. Cornstarch may be added to the Zeolite X and kaolin clay binder to increase adsorbent macro-porosity and pore volume. Productivity of the adsorbent is improved decreasing process operating costs. The mechanical strength of the adsorbent is also improved.

摘要翻译： 提供无粘结BaKX沸石吸附剂，其生产方法及其在液相吸附分离过程中的应用。 吸附剂包括由xwt％高岭土粘土粘合剂和（100-x）wt％未转化的沸石X形成的粘合剂转化的沸石部分，二氧化硅：氧化铝摩尔比为约2.5。 高岭粘土粘合剂在约10至约20重量％的范围内。 Ba和K在吸附剂中占据阳离子交换位点。 K在约0.25至约0.9重量％的范围内，并且Ba大于无粘合剂的BaKX沸石吸附剂的约31.6重量％。 可以将玉米淀粉加入到沸石X和高岭土粘土中以增加吸附剂的大孔隙率和孔体积。 提高吸附剂的生产率降低了工艺操作成本。 吸附剂的机械强度也得到改善。

公开(公告)号：US07820869B2

公开(公告)日：2010-10-26

申请号：US12165390

申请日：2008-06-30

申请人： James W. Priegnitz ,  Darryl M. Johnson, Sr. ,  Linda Shi Cheng ,  Scott E. Commissaris ,  Jack E. Hurst ,  Michael H. Quick ,  Santi Kulprathipanja

发明人： James W. Priegnitz ,  Darryl M. Johnson, Sr. ,  Linda Shi Cheng ,  Scott E. Commissaris ,  Jack E. Hurst ,  Michael H. Quick ,  Santi Kulprathipanja

IPC分类号： C07C7/12

CPC分类号： B01J20/28007 ,  B01J20/183 ,  B01J20/186 ,  B01J20/28004 ,  B01J2220/42 ,  B82Y30/00 ,  C07C7/13 ,  C07C15/08

摘要： Adsorbents and methods for the adsorptive separation of para-xylene from a mixture containing at least one other C8 aromatic hydrocarbon (e.g., a mixture of ortho-xylene, meta-xylene, para-xylene, and ethylbenzene) are described. Suitable binderless adsorbents (e.g., formulated with the substantial absence of an amorphous material that normally reduces selective pore volume), particularly those with a water content from about 3% to about 5.5% by weight, improve capacity and/or mass transfer. These properties are especially advantageous for improving productivity in low temperature, low cycle time adsorptive separation operations in a simulated moving bed mode.

摘要翻译： 描述了从含有至少一种其它C 8芳族烃（例如邻二甲苯，间二甲苯，对二甲苯和乙苯的混合物）的混合物吸附分离对二甲苯的吸附剂和方法。 合适的无粘合剂吸附剂（例如，基本上不存在通常降低选择孔体积的无定形材料配制），特别是含水量为约3重量％至约5.5重量％的那些，改善了容量和/或传质。 这些性能对于提高模拟移动床模式中的低温，低循环时间吸附分离操作的生产率是特别有利的。

公开(公告)号：US6060033A

公开(公告)日：2000-05-09

申请号：US64589

申请日：1998-04-22

申请人： Linda Shi Cheng

发明人： Linda Shi Cheng

IPC分类号： B01D53/02 ,  C07C7/12

CPC分类号： B01D53/02 ,  C07C7/12 ,  B01D2257/204

摘要： The invention relates to a process for removing hydrogen halides from hydrocarbon-containing streams. More particularly, the invention relates to a process and an HCl sorbent for the removal of HCl and other hydrogen halides from hydrocarbon streams to prevent the formation of green oils. The sorbent has an increased capacity for the sorption of HCl and a reduced catalytic activity for the formation of green oils which, surprisingly, results from the pre-loading of water on a sodium promoted alumina adsorbent. The pre-loading of water on the sodium promoted alumina adsorbent in the range of about 5 to about 11 percent of the essentially water-free adsorbent increases the HCl sorption capacities by about 25% with a corresponding decrease in catalytic reactivity.

摘要翻译： 本发明涉及从含烃物流中除去卤化氢的方法。 更具体地，本发明涉及用于从烃流中除去HCl和其它卤化氢以防止形成绿色油的方法和HCl吸附剂。 吸附剂具有增加的HCl吸附能力和用于形成绿油的催化活性降低，令人惊奇的是，这是由钠在促进氧化铝吸附剂上的预装载而产生的。 在基本上不含水的吸附剂的约5至约11％的范围内，在钠促进的氧化铝吸附剂上预加载水将HCl吸附容量提高约25％，催化反应性相应降低。

公开(公告)号：US08859448B2

公开(公告)日：2014-10-14

申请号：US13604039

申请日：2012-09-05

申请人： Linda Shi Cheng ,  Jack Hurst

发明人： Linda Shi Cheng ,  Jack Hurst

IPC分类号： B01J20/18 ,  C01B39/22 ,  B01D15/18 ,  C07C15/08 ,  B01J20/28 ,  B01J20/30 ,  C07C7/13

CPC分类号： B01D15/185 ,  B01J20/183 ,  B01J20/186 ,  B01J20/2803 ,  B01J20/28071 ,  B01J20/28085 ,  B01J20/3028 ,  B01J29/20 ,  C01B39/22 ,  C07C7/13 ,  C07C15/08 ,  C07C2523/02 ,  C07C2523/04 ,  C07C2529/08 ,  Y02P20/52

摘要： Binderless BaKX zeolitic adsorbents, methods for their production, and processes for their use in a liquid phase adsorptive separation process are provided. An adsorbent includes a binder-converted zeolite portion formed from x wt % kaolin clay binder and (100−x) wt % unconverted Zeolite X with a silica:alumina molar ratio of about 2.5. The kaolin clay binder is in the range of about 10 to about 20 wt %. Ba and K occupy cationic exchangeable sites within the adsorbent. K is in the range of about 0.25 to about 0.9% by weight and Ba is greater than about 31.6% by weight of the binderless BaKX zeolitic adsorbent. Cornstarch may be added to the Zeolite X and kaolin clay binder to increase adsorbent macro-porosity and pore volume. Productivity of the adsorbent is improved decreasing process operating costs. The mechanical strength of the adsorbent is also improved.

摘要翻译： 提供无粘结BaKX沸石吸附剂，其生产方法及其在液相吸附分离过程中的应用。 吸附剂包括由xwt％高岭土粘土粘合剂和（100-x）wt％未转化的沸石X形成的粘合剂转化的沸石部分，二氧化硅：氧化铝摩尔比为约2.5。 高岭粘土粘合剂在约10至约20重量％的范围内。 Ba和K在吸附剂中占据阳离子交换位点。 K在约0.25至约0.9重量％的范围内，并且Ba大于无粘合剂的BaKX沸石吸附剂的约31.6重量％。 可以将玉米淀粉加入到沸石X和高岭土粘土中以增加吸附剂的大孔隙率和孔体积。 提高吸附剂的生产率降低了工艺操作成本。 吸附剂的机械强度也得到改善。

公开(公告)号：US08283274B2

公开(公告)日：2012-10-09

申请号：US12505654

申请日：2009-07-20

申请人： Linda Shi Cheng ,  Jack Hurst

发明人： Linda Shi Cheng ,  Jack Hurst

IPC分类号： B01J29/06

CPC分类号： B01D15/185 ,  B01J20/183 ,  B01J20/186 ,  B01J20/2803 ,  B01J20/28071 ,  B01J20/28085 ,  B01J20/3028 ,  B01J29/20 ,  C01B39/22 ,  C07C7/13 ,  C07C15/08 ,  C07C2523/02 ,  C07C2523/04 ,  C07C2529/08 ,  Y02P20/52

摘要： Binderless BaKX zeolitic adsorbents, methods for their production, and processes for their use in a liquid phase adsorptive separation process are provided. An adsorbent includes a binder-converted zeolite portion formed from x wt % kaolin clay binder and (100-x) wt % unconverted Zeolite X with a silica:alumina molar ratio of about 2.5. The kaolin clay binder is in the range of about 10 to about 20 wt %. Ba and K occupy cationic exchangeable sites within the adsorbent. K is in the range of about 0.25 to about 0.9% by weight and Ba is greater than about 31.6% by weight of the binderless BaKX zeolitic adsorbent. Cornstarch may be added to the Zeolite X and kaolin clay binder to increase adsorbent macro-porosity and pore volume. Productivity of the adsorbent is improved decreasing process operating costs. The mechanical strength of the adsorbent is also improved.

摘要翻译： 提供无粘结BaKX沸石吸附剂，其生产方法及其在液相吸附分离过程中的应用。 吸附剂包括由xwt％高岭土粘土粘合剂和（100-x）wt％未转化的沸石X形成的粘合剂转化的沸石部分，二氧化硅：氧化铝摩尔比为约2.5。 高岭粘土粘合剂在约10至约20重量％的范围内。 Ba和K在吸附剂中占据阳离子交换位点。 K在约0.25至约0.9重量％的范围内，并且Ba大于无粘合剂的BaKX沸石吸附剂的约31.6重量％。 可以将玉米淀粉加入到沸石X和高岭土粘土中以增加吸附剂的大孔隙率和孔体积。 提高吸附剂的生产率降低了工艺操作成本。 吸附剂的机械强度也得到改善。

公开(公告)号：US20110011804A1

公开(公告)日：2011-01-20

申请号：US12505654

申请日：2009-07-20

申请人： Linda Shi Cheng ,  Jack Hurst

发明人： Linda Shi Cheng ,  Jack Hurst

IPC分类号： B01D15/36 ,  B01J29/00

CPC分类号： B01D15/185 ,  B01J20/183 ,  B01J20/186 ,  B01J20/2803 ,  B01J20/28071 ,  B01J20/28085 ,  B01J20/3028 ,  B01J29/20 ,  C01B39/22 ,  C07C7/13 ,  C07C15/08 ,  C07C2523/02 ,  C07C2523/04 ,  C07C2529/08 ,  Y02P20/52

摘要： Binderless BaKX zeolitic adsorbents, methods for their production, and processes for their use in a liquid phase adsorptive separation process are provided. An adsorbent includes a binder-converted zeolite portion formed from x wt % kaolin clay binder and (100-x) wt % unconverted Zeolite X with a silica:alumina molar ratio of about 2.5. The kaolin clay binder is in the range of about 10 to about 20 wt %. Ba and K occupy cationic exchangeable sites within the adsorbent. K is in the range of about 0.25 to about 0.9% by weight and Ba is greater than about 31.6% by weight of the binderless BaKX zeolitic adsorbent. Cornstarch may be added to the Zeolite X and kaolin clay binder to increase adsorbent macro-porosity and pore volume. Productivity of the adsorbent is improved decreasing process operating costs. The mechanical strength of the adsorbent is also improved.

摘要翻译： 提供无粘结BaKX沸石吸附剂，其生产方法及其在液相吸附分离过程中的应用。 吸附剂包括由xwt％高岭土粘土粘合剂和（100-x）wt％未转化的沸石X形成的粘合剂转化的沸石部分，二氧化硅：氧化铝摩尔比为约2.5。 高岭粘土粘合剂在约10至约20重量％的范围内。 Ba和K在吸附剂中占据阳离子交换位点。 K在约0.25至约0.9重量％的范围内，并且Ba大于无粘合剂的BaKX沸石吸附剂的约31.6重量％。 可以将玉米淀粉加入到沸石X和高岭土粘土中以增加吸附剂的大孔隙率和孔体积。 提高吸附剂的生产率降低了工艺操作成本。 吸附剂的机械强度也得到改善。

公开(公告)号：US07812208B2

公开(公告)日：2010-10-12

申请号：US12165359

申请日：2008-09-22

申请人： Linda Shi Cheng ,  Jack E. Hurst

发明人： Linda Shi Cheng ,  Jack E. Hurst

IPC分类号： C07C7/12

CPC分类号： B01J20/28004 ,  B01J20/18 ,  B01J2220/56 ,  C07C7/13 ,  C07C15/08

摘要： Adsorbents and methods for the adsorptive separation of para-xylene from a mixture containing at least one other C8 aromatic hydrocarbon (e.g., a mixture of ortho-xylene, meta-xylene, para-xylene, and ethylbenzene) are described. Suitable adsorbents comprise small-crystallite-size zeolite X having an average crystallite size of less than 1.8 microns. The adsorbents may be binderless (e.g., formulated with the substantial absence of an amorphous material that normally reduces selective pore volume) to further improve capacity and mass transfer. These properties are especially advantageous for improving productivity in low temperature, low cycle time adsorptive separation operations in a simulated moving bed mode.

摘要翻译： 描述了从含有至少一种其它C 8芳族烃（例如邻二甲苯，间二甲苯，对二甲苯和乙苯的混合物）的混合物吸附分离对二甲苯的吸附剂和方法。 合适的吸附剂包括平均微晶尺寸小于1.8微米的小晶粒尺寸的沸石X. 吸附剂可以是无粘合剂的（例如，基本上不存在通常降低选择孔体积的无定形材料配制），以进一步提高容量和传质。 这些性能对于提高模拟移动床模式中的低温，低循环时间吸附分离操作的生产率是特别有利的。