公开(公告)号：US5399769A

公开(公告)日：1995-03-21

申请号：US253872

申请日：1994-06-03

申请人： Frederick C. Wilhelm ,  Gene E. Parris ,  Brent A. Aufdembrink ,  Thomas R. Gaffney

发明人： Frederick C. Wilhelm ,  Gene E. Parris ,  Brent A. Aufdembrink ,  Thomas R. Gaffney

IPC分类号： C07C209/16

CPC分类号： C07C209/16

摘要： This invention relates to a process for producing a nonequilibrium distribution of methylamines by the catalyzed reaction of methanol and/or dimethyl ether with ammonia and by the catalytic reforming of a methylamine containing feedstock. One process selectively affords a reaction product enriched in mono and dimethylamines and low in trimethylamine, at high conversion of methanol or dimethylether. A variation of the process effects reforming a methylamine containing feedstock, optionally containing ammonia over a catalyst. The key to achieving this low TMA selectivity at high conversion resides in the use of a microporous zeolite, preferably chabazite, catalyst having a geometric selectivity index (GSI) less about 3, a shape selectivity index (SSI) greater than about 5 and a sorption capacity for 1-PrOH of at least 0.5 mmol/g.

摘要翻译： 本发明涉及通过甲醇和/或二甲醚与氨的催化反应和含甲胺原料的催化重整来生产甲胺的非平衡分布的方法。 在甲醇或二甲醚的高转化率下，一种方法选择性地提供富含单胺和二甲胺和低三甲胺的反应产物。 重整含甲胺原料的工艺效果的变化，任选地在催化剂上含有氨。 在高转化率下实现这种低TMA选择性的关键在于使用微孔沸石，优选菱沸石，几何选择性指数（GSI）小于约3，大于约5的形状选择性指数（SSI）和吸附 1-PrOH的容量至少为0.5mmol / g。

公开(公告)号：US5258060A

公开(公告)日：1993-11-02

申请号：US950120

申请日：1992-09-23

申请人： Thomas R. Gaffney ,  John F. Kirner ,  Ravi Kumar ,  Robin J. Maliszewskyj

发明人： Thomas R. Gaffney ,  John F. Kirner ,  Ravi Kumar ,  Robin J. Maliszewskyj

IPC分类号： B01D53/04 ,  B01D53/047 ,  B01J20/02 ,  B01J20/18

CPC分类号： B01D53/0476 ,  B01D53/047 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2253/30 ,  B01D2256/12 ,  B01D2257/102 ,  B01D2259/40066 ,  B01D53/0462 ,  Y10S95/902

摘要： The present invention is directed to adsorptive separation of nitrogen with active adsorbent phases with high N.sub.2 capacity and high heats of adsorption when diluted with inert material at levels ranging from 5% to 80%. The presence of diluent reduces the temperature swings in the adsorbent bed, which increases the utilizable effective N.sub.2 working capacity and decreases the relative amount of O.sub.2 left unrecovered on the active adsorbent phase. The net result is equal or better process performance allowing utilization of a lower amount of active adsorbent phase. Use of a diluent having a higher heat capacity than that of the active adsorbent phase increases these benefits, but dilution effects are beneficial even for diluents with heat capacities equal to or lower than that of the active adsorbent phase.

公开(公告)号：US5086033A

公开(公告)日：1992-02-04

申请号：US638477

申请日：1991-01-03

申请人： John N. Armor ,  Thomas A. Braymer ,  Thomas S. Farris ,  Thomas R. Gaffney

发明人： John N. Armor ,  Thomas A. Braymer ,  Thomas S. Farris ,  Thomas R. Gaffney

IPC分类号： B01D53/02 ,  B01J20/20 ,  C01B13/02 ,  C01B21/04 ,  C01B23/00 ,  C01B31/08

CPC分类号： C01B21/0461 ,  B01J20/20 ,  C01B13/0266 ,  C01B23/00 ,  C01B31/085 ,  C01B2210/0046 ,  Y02C10/08

摘要： Carbon molecular sieves, useful in the separation of air into oxygen and nitrogen, are improved through modification of the micropores of the sieve by contact with the pyrolysis products of a carbon-containing compound in the gaseous state diluted with helium, with or without nitrogen as a part of the diluting gas. Volatile organic compounds, such as trimethylcyclohexane, are used with the diluent gas to narrow the micropore openings of a carbon molecular sieve and increase its kinetic selectivity for oxygen adsorption. Carbon dioxide and helium or argon in the diluent gas are used to open pores available to contacting gases.

摘要翻译： 通过使用氦稀释的气态的含碳化合物的热分解产物与有或者没有氮气接触的方法，通过改变筛子的微孔来改善用于将空气分离成氧和氮的碳分子筛 一部分稀释气体。 与稀释气体一起使用挥发性有机化合物，例如三甲基环己烷，以缩小碳分子筛的微孔开口并增加其对氧吸附的动力学选择性。 稀释气体中的二氧化碳和氦气或氩气用于打开可用于接触气体的孔。

公开(公告)号：US5098880A

公开(公告)日：1992-03-24

申请号：US575474

申请日：1990-08-30

申请人： Thomas R. Gaffney ,  Thomas S. Farris ,  Alejandro L. Cabrera ,  John N. Armor

发明人： Thomas R. Gaffney ,  Thomas S. Farris ,  Alejandro L. Cabrera ,  John N. Armor

IPC分类号： B01D53/02 ,  B01J20/20 ,  C01B13/02 ,  C01B21/04 ,  C01B23/00 ,  C01B31/08 ,  C01B37/00

CPC分类号： C01B13/0266 ,  B01J20/20 ,  C01B21/0461 ,  C01B23/00 ,  C01B2210/0046 ,  C01B2210/0082

摘要： A process is provided for making a modified carbon molecular sieve which is suitable for separating gases having different adsorption rates on the sieve. The process involves modifying a starting sieve support having a majority of micropores with an effective pore size of about 4.5 to 8 angstroms, with a two-step process in which the sieve is contacted with two different volatile carbon-containing organic compounds, preferably hydrocarbons, which have different molecular dimensions. The compound used in the first step is larger than that in the second step, so that the pore openings of the micropores of the support are narrowed successively in two distinct steps without filling the micropores themselves. The invention also discloses an improved carbon molecular sieve and the separation of gases, such as oxygen from nitrogen, by the use of this improved adsorbent.

公开(公告)号：US4906800A

公开(公告)日：1990-03-06

申请号：US901663

申请日：1986-11-17

申请人： JoAnn Henry ,  Michael J. Desmond ,  Thomas R. Gaffney

发明人： JoAnn Henry ,  Michael J. Desmond ,  Thomas R. Gaffney

IPC分类号： B01J23/62 ,  B01J27/232 ,  C07C2/00 ,  C07C5/09

CPC分类号： C07C2/00 ,  B01J23/628 ,  B01J27/232 ,  C07C5/09 ,  C07C2523/14 ,  C07C2523/44 ,  C07C2523/62 ,  C07C2527/232 ,  Y02P20/52

摘要： This invention relates to a method for the preparation of selective acetylene hydrogenation catalysts. More specifically, this invention relates to a pretreatment method for supported and unsupported Group VIII metal catalysts and the use thereof for the conversion of an acetylene-, ethylene- and hydrogen-containing feedstream to gasoline range hydrocarbons.

摘要翻译： 本发明涉及制备选择性乙炔氢化催化剂的方法。 更具体地说，本发明涉及用于负载型和未负载的第VIII族金属催化剂的预处理方法及其用于将乙炔，乙烯和含氢原料流转化为汽油范围烃的用途。