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：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。

公开(公告)号：US08431764B2

公开(公告)日：2013-04-30

申请号：US13426979

申请日：2012-03-22

申请人： Jack E. Hurst ,  Linda S. Cheng ,  Robert W. Broach

发明人： Jack E. Hurst ,  Linda S. Cheng ,  Robert W. Broach

IPC分类号： C07C7/13

CPC分类号： C07C7/13 ,  B01J20/183 ,  B01J20/186 ,  B01J20/2803 ,  C07C15/08

摘要： A process for separating para-xylene from a mixture of C8 alkylaromatics comprises contacting the mixture of C8 alkylaromatics with a zeolitic binder-converted composition comprising (a) a zeolite X composition having at least a first zeolite X having a mean diameter not greater than 2.7 microns, and a second zeolite X, wherein the second zeolite X is obtained by converting a binder material to the second zeolite X and the binder material is in a range from 5 to 50 wt % of the zeolite X composition; and (b) an unconverted binder material content, after conversion to the second zeolite X is complete, in a range from 0 to 3 wt % of the zeolite X composition. The zeolite X composition has an average Si/Al framework mole ratio in a range from 1.0 to 1.5, and a relative LTA intensity not greater than 1.0, as determined by x-ray diffraction (XRD).

摘要翻译： 从C8烷基芳族化合物的混合物中分离对二甲苯的方法包括使C8烷基芳族化合物的混合物与沸石粘合剂转化组合物接触，所述组合物包含（a）至少具有不大于2.7的平均直径的第一沸石X的沸石X组合物 微米和第二沸石X，其中第二沸石X通过将粘合剂材料转化为第二沸石X而获得，并且粘合剂材料在沸石X组合物的5至50重量％的范围内; 和（b）在转化成第二沸石X之后未转化的粘合剂材料含量在沸石X组合物的0至3重量％的范围内完成。 沸石X组合物的平均Si / Al骨架摩尔比在1.0至1.5的范围内，并且通过x射线衍射（XRD）测定的相对LTA强度不大于1.0。

公开(公告)号：US08603434B2

公开(公告)日：2013-12-10

申请号：US13426970

申请日：2012-03-22

申请人： Jack E. Hurst ,  Linda S. Cheng ,  Robert W. Broach

发明人： Jack E. Hurst ,  Linda S. Cheng ,  Robert W. Broach

IPC分类号： C01B39/46 ,  C01B39/22 ,  B01J29/80 ,  C01B39/02 ,  B01J29/82

CPC分类号： C01B39/023 ,  B01J20/183 ,  B01J20/186 ,  B01J20/2803 ,  B01J29/80 ,  B01J29/82 ,  B01J2229/42 ,  C01B39/22 ,  C01B39/46 ,  C07C7/13 ,  Y02P20/52 ,  C07C15/08

摘要： A zeolitic binder-converted composition comprising (a) a zeolite X composition having at least a first zeolite X having a mean diameter not greater than 2.7 microns, and a second zeolite X, wherein the second zeolite X is obtained by converting a binder material to the second zeolite X and the binder material is in a range from 5 to 50 wt % of the zeolite X composition; and (b) an unconverted binder material content, after conversion to the second zeolite X is complete, in a range from 0 to 3 wt % of the zeolite X composition. The zeolite X composition has an average Si/Al framework mole ratio in a range from 1.0 to 1.5, and a relative LTA intensity not greater than 1.0, as determined by x-ray diffraction (XRD).

摘要翻译： 一种沸石粘合剂转化组合物，其包含（a）至少具有不大于2.7微米的平均直径的第一沸石X的沸石X组合物和第二沸石X，其中第二沸石X通过将粘合剂材料转化为 第二沸石X和粘合剂材料在沸石X组合物的5至50重量％的范围内; 和（b）在转化成第二沸石X之后未转化的粘合剂材料含量在沸石X组合物的0至3重量％的范围内完成。 沸石X组合物的平均Si / Al骨架摩尔比在1.0至1.5的范围内，并且通过x射线衍射（XRD）测定的相对LTA强度不大于1.0。

公开(公告)号：US08557028B2

公开(公告)日：2013-10-15

申请号：US13425774

申请日：2012-03-21

申请人： Jack E. Hurst ,  Linda S. Cheng

发明人： Jack E. Hurst ,  Linda S. Cheng

IPC分类号： B01D53/02 ,  B01J29/06

CPC分类号： B01D53/02 ,  B01D2253/1085 ,  B01D2253/25 ,  B01D2256/24 ,  B01D2257/7027 ,  B01J20/183 ,  B01J20/186 ,  B01J20/3028 ,  B01J20/3042 ,  C07C7/13 ,  Y02P20/52 ,  C07C15/08

摘要： Binderless BaKX zeolitic adsorbents, methods for their production, and adsorptive separation using the adsorbents are provided. An adsorbent comprises a first Zeolite X having a silica to alumina molar ratio of from about 2.0 to about 3.0; a binder-converted Zeolite X wherein a ratio of the binder-converted Zeolite X to the first Zeolite X ranges from about 10:90 to about 20:80 by weight; and barium and potassium at cationic exchangeable sites within the binderless BaKX zeolitic adsorbent. Potassium ranges from about 0.9 wt % to about 1.5 wt % and barium ranges from about 30 wt % to about 34 wt % of the binderless BaKX zeolitic adsorbent.

摘要翻译： 提供无粘结剂BaKX沸石吸附剂，其制备方法和使用吸附剂的吸附分离。 吸附剂包括二氧化硅与氧化铝摩尔比为约2.0至约3.0的第一沸石X; 粘合剂转化的沸石X，其中粘合剂转化的沸石X与第一沸石X的比例为约10:90至约20:80; 和在无粘合剂的BaKX沸石吸附剂中的阳离子交换位点处的钡和钾。 钾的范围为约0.9重量％至约1.5重量％，钡的范围为无粘合剂的BaKX沸石吸附剂的约30重量％至约34重量％。

公开(公告)号：US06168720A

公开(公告)日：2001-01-02

申请号：US09376684

申请日：1999-08-18

申请人： Maryellen Lavin ,  Alan P. Cohen ,  Jack E. Hurst

发明人： Maryellen Lavin ,  Alan P. Cohen ,  Jack E. Hurst

IPC分类号： B01D1504

CPC分类号： B01J20/186 ,  B01D53/261 ,  B01J20/183 ,  C09K5/045 ,  C09K5/047 ,  C09K2205/24 ,  F25B43/003

摘要： Difluoromethane (R-32) is of current interest as a partial replacement for chlorodifluoromethane (R-22) refrigerant heretofore widely used in vapor compression refrigeration systems. R-32 has, however, proved to be more reactive than is desirable with the zeolite A adsorbent-desiccant compositions used in such systems to prevent corrosion and freeze-up problems. The potassium cation form of a zeolite A molecular sieve—with at least 60 percent of the sodium cations replaced with potassium ions, agglomerated with a clay binder, and pore-reduced to essentially exclude the adsorption of R-32 having essentially no reactivity with difluoromethane, and having a surface ratio of silicon to aluminum of less than about 1.7 mol/mol as determined by X-ray photoelectron spectroscopy—has been found to be an effective desiccant for refrigerants comprising difluoromethane.

摘要翻译： 作为蒸气压缩制冷系统中广泛使用的氯二氟甲烷（R-22）制冷剂的部分替代品，目前感兴趣的是二氟甲烷（R-32）。 然而，R-32被证明比在这种系统中用于防止腐蚀和冷冻问题的沸石A吸附剂 - 干燥剂组合物所需要的反应性更强。 沸石A分子筛的钾离子形式 - 至少60％的钠阳离子用钾离子代替，用粘土粘合剂聚集，并且被孔隙还原，基本上排除了对二氟甲烷基本上没有反应性的R-32的吸附 ，并且通过X射线光电子能谱法测定的硅与铝的表面比率小于约1.7mol / mol已经被发现是用于包含二氟甲烷的制冷剂的有效干燥剂。

公开(公告)号：US6020281A

公开(公告)日：2000-02-01

申请号：US879448

申请日：1997-06-20

申请人： MaryEllen Lavin ,  Alan P. Cohen ,  Jack E. Hurst

发明人： MaryEllen Lavin ,  Alan P. Cohen ,  Jack E. Hurst

IPC分类号： B01D53/26 ,  B01J20/18 ,  C09K5/04 ,  F25B43/00 ,  B01J29/06

CPC分类号： B01D53/261 ,  B01J20/183 ,  B01J20/186 ,  C09K5/045 ,  C09K5/047 ,  C09K2205/24 ,  F25B43/003

摘要： Difluoromethane (R-32) is of current interest as a partial replacement for chlorodifluoromethane (R-22) refrigerant heretofore widely used in vapor compression refrigeration systems. R-32 has, however, proved to be more reactive than is desirable with the zeolite A adsorbent-desiccant compositions used in such systems to prevent corrosion and freeze-up problems. The potassium cation form of a zeolite A molecular sieve--with at least 60 per cent of the sodium cations replaced with potassium ions, agglomerated with a clay binder and pore-reduced to essentially exclude the adsorption of R-32, and having essentially no reactivity with difluoromethane--has been found to be an effective desiccant for refrigerants comprising difluoromethane.

摘要翻译： 作为蒸气压缩制冷系统中广泛使用的氯二氟甲烷（R-22）制冷剂的部分替代品，目前感兴趣的是二氟甲烷（R-32）。 然而，R-32被证明比在这种系统中用于防止腐蚀和冷冻问题的沸石A吸附剂 - 干燥剂组合物所需要的反应性更强。 沸石A分子筛的钾离子形式 - 至少有60％的钠阳离子用钾离子代替，用粘土粘结剂聚集并进行孔还原，基本上排除了R-32的吸附，并且基本上没有反应性 已发现二氟甲烷对于包含二氟甲烷的制冷剂是有效的干燥剂。

公开(公告)号：US20120264993A1

公开(公告)日：2012-10-18

申请号：US13426970

申请日：2012-03-22

申请人： Jack E. Hurst ,  Linda S. Cheng ,  Robert W. Broach

发明人： Jack E. Hurst ,  Linda S. Cheng ,  Robert W. Broach

IPC分类号： B01J20/18 ,  C07C7/13

CPC分类号： C01B39/023 ,  B01J20/183 ,  B01J20/186 ,  B01J20/2803 ,  B01J29/80 ,  B01J29/82 ,  B01J2229/42 ,  C01B39/22 ,  C01B39/46 ,  C07C7/13 ,  Y02P20/52 ,  C07C15/08

摘要： A zeolitic binder-converted composition comprising (a) a zeolite X composition having at least a first zeolite X having a mean diameter not greater than 2.7 microns, and a second zeolite X, wherein the second zeolite X is obtained by converting a binder material to the second zeolite X and the binder material is in a range from 5 to 50 wt % of the zeolite X composition; and (b) an unconverted binder material content, after conversion to the second zeolite X is complete, in a range from 0 to 3 wt % of the zeolite X composition. The zeolite X composition has an average Si/Al framework mole ratio in a range from 1.0 to 1.5, and a relative LTA intensity not greater than 1.0, as determined by x-ray diffraction (XRD).

摘要翻译： 一种沸石粘合剂转化组合物，其包含（a）至少具有不大于2.7微米的平均直径的第一沸石X的沸石X组合物和第二沸石X，其中第二沸石X通过将粘合剂材料转化为 第二沸石X和粘合剂材料在沸石X组合物的5至50重量％的范围内; 和（b）在转化成第二沸石X之后未转化的粘合剂材料含量在沸石X组合物的0至3重量％的范围内完成。 沸石X组合物的平均Si / Al骨架摩尔比在1.0至1.5的范围内，并且通过x射线衍射（XRD）测定的相对LTA强度不大于1.0。

公开(公告)号：US20120264992A1

公开(公告)日：2012-10-18

申请号：US13426955

申请日：2012-03-22

申请人： Jack E. Hurst ,  Linda S. Cheng ,  Robert W. Broach

发明人： Jack E. Hurst ,  Linda S. Cheng ,  Robert W. Broach

IPC分类号： C07C7/12 ,  B01J20/28

CPC分类号： C01B39/46 ,  B01J20/18 ,  B01J20/183 ,  B01J29/08 ,  C01B39/22 ,  C07C7/12 ,  Y02P20/52 ,  C07C15/08

摘要： A zeolite X having (a) a Si/Al framework mole ratio in a range from 1.0 to 1.5; (b) a mean diameter not greater than 2.7 microns; and (c) a relative LTA intensity not greater than 0.35, as determined by x-ray diffraction (XRD). The relative LTA intensity is calculated as 100 times the quotient of a sample LTA XRD intensity divided by a reference XRD intensity of an LTA-type zeolite material. The intensities are summed for each LTA peak with Miller indices of (2 0 0), (4 2 0), and (6 2 2) at 7.27±0.16°, 16.29±0.34° and 24.27±0.50° 2θ.

摘要翻译： 具有（a）Si / Al骨架摩尔比在1.0至1.5范围内的沸石X; （b）平均直径不大于2.7微米; 和（c）通过x射线衍射（XRD）测定的不大于0.35的相对LTA强度。 相对LTA强度计算为样品LTA XRD强度除以LTA型沸石材料的参考XRD强度的商的100倍。 对于每个LTA峰值，在7.27±0.16°，16.29±0.34°和24.27±0.50°2的米勒指数（2 0 0），（4 2 0）和（6 2 2）下求和强度。

公开(公告)号：US08603433B2

公开(公告)日：2013-12-10

申请号：US13426955

申请日：2012-03-22

申请人： Jack E. Hurst ,  Linda S. Cheng ,  Robert W. Broach

发明人： Jack E. Hurst ,  Linda S. Cheng ,  Robert W. Broach

IPC分类号： C01B39/46 ,  C01B39/22 ,  B01J29/08

CPC分类号： C01B39/46 ,  B01J20/18 ,  B01J20/183 ,  B01J29/08 ,  C01B39/22 ,  C07C7/12 ,  Y02P20/52 ,  C07C15/08

摘要： A zeolite X having (a) a Si/Al framework mole ratio in a range from 1.0 to 1.5; (b) a mean diameter not greater than 2.7 microns; and (c) a relative LTA intensity not greater than 0.35, as determined by x-ray diffraction (XRD). The relative LTA intensity is calculated as 100 times the quotient of a sample LTA XRD intensity divided by a reference XRD intensity of an LTA-type zeolite material. The intensities are summed for each LTA peak with Miller indices of (2 0 0), (4 2 0), and (6 2 2) at 7.27±0.16°, 16.29±0.34° and 24.27±0.50° 2θ.

摘要翻译： 具有（a）Si / Al骨架摩尔比在1.0至1.5范围内的沸石X; （b）平均直径不大于2.7微米; 和（c）通过x射线衍射（XRD）测定的不大于0.35的相对LTA强度。 相对LTA强度计算为样品LTA XRD强度除以LTA型沸石材料的参考XRD强度的商的100倍。 对于每个LTA峰值，在7.27±0.16°，16.29±0.34°和24.27±0.50°2θ处的米勒指数（2 0 0），（4 2 0）和（6 2 2）