公开(公告)号：US5315056A

公开(公告)日：1994-05-24

申请号：US837027

申请日：1992-02-14

申请人： Robert J. Feldman ,  Joseph M. Dufallo ,  William A. Schwartz ,  Theodore S. Williams

发明人： Robert J. Feldman ,  Joseph M. Dufallo ,  William A. Schwartz ,  Theodore S. Williams

IPC分类号： B01J23/90 ,  B01J23/92 ,  B01J38/04 ,  C07C5/333 ,  B01J38/20

CPC分类号： B01J38/04 ,  B01J23/90 ,  B01J23/92 ,  C07C5/3332 ,  Y02P20/584 ,  Y10S585/91

摘要： In a dehydrogenation process wherein catalyst is regenerated off-stream by use of heated air, at least two reactors are in the regeneration cycle, with regeneration air being heated to regeneration catalyst temperature for introduction into the first reactor, and thereafter being reheated to catalyst regeneration temperature and introduced into the second reactor. Such air may also be employed for preheating feed to the dehydrogenation reactor and/or for steam generation by heating such air to the temperature required for such procedure.

摘要翻译： 在催化剂通过使用加热的空气离心再生的脱氢方法中，至少两个反应器处于再生循环中，再生空气被加热至再生催化剂温度以引入第一反应器，然后再加热至催化剂再生 温度并引入第二反应器。 也可以使用这种空气来预热进入脱氢反应器的进料和/或通过将这种空气加热到这种程序所需的温度来产生蒸汽。

公开(公告)号：US4581339A

公开(公告)日：1986-04-08

申请号：US712831

申请日：1985-03-18

申请人： Bharat L. Bhatt ,  John F. Kirner ,  Pradip Rao ,  William A. Schwartz

发明人： Bharat L. Bhatt ,  John F. Kirner ,  Pradip Rao ,  William A. Schwartz

IPC分类号： C10G45/00 ,  C07C5/333 ,  B01J38/12 ,  C07C5/327

CPC分类号： C07C5/3332 ,  Y02P20/584

摘要： A method for reheating of a catalytic reactor by successive oxidations and reductions of a multiple oxidation state catalyst.Heat is added to the catalyst bed by a series of successive oxidation and reduction reactions occurring on the catalyst. Both catalyst oxidation and catalyst reduction are exothermic reactions, and both reactions generate heat to increase the temperature of the catalyst bed.

摘要翻译： 通过连续氧化和还原多重氧化态催化剂来再催化催化反应器的方法。 通过在催化剂上发生的一系列连续的氧化和还原反应将热量加入到催化剂床中。 催化剂氧化和催化剂还原都是放热反应，两种反应产生热量以增加催化剂床的温度。

公开(公告)号：US4560824A

公开(公告)日：1985-12-24

申请号：US731423

申请日：1985-05-07

申请人： David C. Spence ,  William A. Schwartz

发明人： David C. Spence ,  William A. Schwartz

IPC分类号： C07C11/02 ,  C07C5/333 ,  C07C

CPC分类号： C07C5/3332

摘要： This invention relates to an improvement in a process for producing isobutylene by the cyclic, adiabatic dehydrogenation of isobutane. The improvement resides in diluting an isobutane feed stream with n-butane in an amount from about 3-7% by volume and recycling unreacted products plus nC.sub.4 unsaturates from the dehydrogenation zone. Additional coke is made by virtue of the use of n-butane and recycle to permit lower feed input temperature.

摘要翻译： 本发明涉及通过异丁烷的环状绝热脱氢制备异丁烯的方法的改进。 改进在于用正丁烷稀释异丁烷进料流，其量为约3-7体积％，并将未反应产物加上nC 4不饱和物质从脱氢区循环。 通过使用正丁烷和再循环来制造额外的焦炭以允许更低的进料输入温度。

公开(公告)号：US4558168A

公开(公告)日：1985-12-10

申请号：US746605

申请日：1985-06-19

申请人： Stanley Gussow ,  David C. Spence ,  William A. Schwartz

发明人： Stanley Gussow ,  David C. Spence ,  William A. Schwartz

IPC分类号： C07C11/08 ,  C07C11/167

CPC分类号： C07C11/08 ,  C07C11/167

摘要： This invention relates to a process for producing a high purity butene-1 product from n-butane via a dehydrogenation process. In one embodiment of the process the n-butane is dehydrogenated over a chromia-alumina catalyst and any butadiene formed hydrogenated to monoolefins. The monoolefins are separated and the butene-1 separated from isobutylene by reacting the isobutylene with methanol to form methyl tertiary butyl ether. The methyl tertiary butyl ether is separated from the butene-1 leaving it as a high purity product. Alternatively, the dehydrogenated product from the reactor may be contacted with a solvent to extract butadiene followed by hydrogenation, separation of monoolefins and conversion to methyl tertiary butyl ether.

摘要翻译： 本发明涉及一种通过脱氢工艺从正丁烷生产高纯度丁烯-1产物的方法。 在该方法的一个实施方案中，正丁烷在氧化铬 - 氧化铝催化剂上脱氢，任何丁二烯氢化成单烯烃。 分离单烯烃，通过使异丁烯与甲醇反应形成甲基叔丁基醚，从异丁烯中分离丁烯-1。 甲基叔丁基醚与丁烯-1分离，留下高纯度产物。 或者，可将来自反应器的脱氢产物与溶剂接触以提取丁二烯，然后氢化，分离单烯烃并转化成甲基叔丁基醚。