公开(公告)号：EP0599460A1

公开(公告)日：1994-06-01

申请号：EP93307686.1

申请日：1993-09-28

Applicant: THE STANDARD OIL COMPANY

Inventor： Dio, Susan L. ,  Mack, Robert J. ,  Rowe, Steven J. ,  Shultz, John T.

IPC: B01J8/24 ,  C07C253/24

CPC classification number: B01J8/1827 ,  C07C253/26 ,  C07C255/08

Abstract: An improved process for substantially eliminating, preferably completely eliminating of nitride formation on feed conduits for fluid bed catalyst reactors used in the manufacture of unsaturated nitriles from corresponding olefins, NH₃ and oxygen comprising maintaining the temperature of the ammonia inside the conduit below its dissociation temperature and/or maintaining the temperature of the inside surface of the conduit below the temperature at which any mono-atomic nitrogen can react with the conduit to form a nitride.

Abstract translation: 一种改进的方法，用于基本上消除，优选完全消除用于制备来自相应烯烃，NH 3和氧气的不饱和腈的流化床催化剂反应器的进料导管上的氮化物形成，包括将导管内的氨温度维持在其解离温度以下， /或将管道内表面的温度保持在低于任何单原子氮能与导管反应形成氮化物的温度以下。

公开(公告)号：EP0599460B1

公开(公告)日：1997-02-26

申请号：EP93307686.1

申请日：1993-09-28

Applicant: THE STANDARD OIL COMPANY

Inventor： Dio, Susan L. ,  Mack, Robert J. ,  Rowe, Steven J. ,  Shultz, John T.

IPC: B01J8/24 ,  C07C253/24

CPC classification number: B01J8/1827 ,  C07C253/26 ,  C07C255/08

公开(公告)号：EP0638546B1

公开(公告)日：1998-11-18

申请号：EP94300858.1

申请日：1994-02-04

Applicant: THE STANDARD OIL COMPANY

Inventor： Bigler, Kenneth L. ,  Bott, Paul E. ,  Friedrich, Maria S. ,  Keckler, Kenneth P. ,  Kocjancic, Frank J. ,  Miko, Steve J. ,  Reiling, Vincent G. ,  Rowe, Steven J. ,  Seely, Michael J. ,  Shaw, Wilfrid G. ,  Shuki, Albert R., Jr. ,  Sockell, Edward J. ,  Suresh, Dev D. ,  Trott, Louis R.

IPC: C07C253/26 ,  C07C255/08

CPC classification number: B01D53/58 ,  C07C253/26 ,  Y02P20/52 ,  C07C255/08

公开(公告)号：EP0638546A1

公开(公告)日：1995-02-15

申请号：EP94300858.1

申请日：1994-02-04

Applicant: THE STANDARD OIL COMPANY

Inventor： Bigler, Kenneth L. ,  Bott, Paul E. ,  Friedrich, Maria S. ,  Keckler, Kenneth P. ,  Kocjancic, Frank J. ,  Miko, Steve J. ,  Reiling, Vincent G. ,  Rowe, Steven J. ,  Seely, Michael J. ,  Shaw, Wilfrid G. ,  Shuki, Albert R., Jr. ,  Sockell, Edward J. ,  Suresh, Dev D. ,  Trott, Louis R.

IPC: C07C253/26 ,  C07C255/08

CPC classification number: B01D53/58 ,  C07C253/26 ,  Y02P20/52 ,  C07C255/08

Abstract: A process for the substantial reduction or complete elimination of ammonium sulfate generated during the production of acrylonitrile by the direct ammoxidation of propylene/propane, ammonia and an oxygen containing gas (e.g. air) over a fluid bed catalyst wherein the improvement comprises introducing methanol into said reactor in the upper portion of the reactor at a location where the methanol reacts with at least a portion if not substantially all of the excess ammonia without affecting the acrylonitrile yield. Preferably, methanol is introduced into the reactor at below its coking temperature. In particular, when an oxygen lean fluid bed catalyst is utilized, an additional oxygen containing gas is introduced into the reaction at a distance between about 8 to 14 inches from the methanol feed location.

Abstract translation: 一种用于大量减少或丙烯/丙烷，氨的直接氨氧化和含氧气体（例如空气）在流化床催化剂worin改进之处包括引入甲醇到所述生产丙烯腈的过程中产生的硫酸铵的完全消除过程 反应器在反应器中的的位置处的上部分，其中甲醇的至少一部分如果不是基本上所有过量的氨发生反应而不影响丙烯腈收率。 优选地，将甲醇在低于其焦化温度引入到反应器中。 特别是，当一个贫氧流化床催化剂在额外含氧气体可利用的被引入到在距离约8至14英寸之间从甲醇进料位置的反应。