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公开(公告)号:BG61644B1
公开(公告)日:1998-02-27
申请号:BG9845394
申请日:1994-02-11
Applicant: STANDARD OIL CO
Inventor: SHAW WILFRID G , TROTT LOUIS R , REILING VINCENT G , SURESH DEV D , BOTT PAUL E , SHUKI JUN ALBERT R , KOCJANCIC FRANK J , BIGLER KENETH L , MIKO STEVE J , SEELY MICHAEL J , FRIEDRICH MARIA S , SOCKELL EDWARD J , KECKLER KENNETH P , ROWE STEVEN J
IPC: B01J23/88 , B01D53/58 , C01C3/02 , C07B61/00 , C07C5/08 , C07C253/24 , C07C253/26 , C07C253/32 , C07C255/00 , C07C255/08
Abstract: By the method, the ammonium sulphate formed during themanufacture of acrylonitrile is considerably reduced or completelyeliminated by means of direct amoxydation (reaction betweenammonia and oxygen) of propylene/propane, ammonia and oxygencontaining gas, e.g. air, on a catalytic fluid bed. Methanol isintroduced in the upper part of the reactor used at a point whereit reacts with the residual ammonia without this affecting theacrylonituile yield. The methanol is introduced in the reactor ata temperature under the point of its selfignition. When catalystis used for fluid bed, poor in oxygen, ogygen conraining gas inintroduced in the reaction at a distance from 20.32 and 30.48 cmfrom the place of methanol feeding.
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公开(公告)号:BR9304451A
公开(公告)日:1995-06-27
申请号:BR9304451
申请日:1993-11-01
Applicant: STANDARD OIL CO OHIO
Inventor: SHAW WILFRID G , BIGLER KENNETH L , TROTT LOUIS R , MIKO STEVE J , REILING VINCENT G , SEELY MICHAEL J , SURESH DEV D , FRIEDRICH MARIA S , BOTT PAUL E , SOCKELL EDWARD J , SHUKI ALBERT R JR , KECKLER KENNETH P , KOJANCIC FRANK J
IPC: C01C3/02 , C07C120/14
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公开(公告)号:BG98453A
公开(公告)日:1995-05-31
申请号:BG9845394
申请日:1994-02-11
Applicant: STANDARD OIL CO
Inventor: SHAW WILFRID G , TROTT LOUIS R , REILING VINCENT G , SURESH DEV D , BOTT PAUL E , SHUKI ALBERT R , KOCJANCIC FRANK J , BIGLER KENETH L , MIKO STEVE J , SEELY MICHAEL J , FRIEDRICH MARIA S , SOCKELL EDWARD J , KECKLER KENNETH P , ROWE STEVEN J
IPC: B01J23/88 , B01D53/58 , C01C3/02 , C07B61/00 , C07C5/08 , C07C253/24 , C07C253/26 , C07C253/32 , C07C255/00 , 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.
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公开(公告)号:BR9400642A
公开(公告)日:1995-03-28
申请号:BR9400642
申请日:1994-02-22
Applicant: STANDARD OIL CO OHIO
Inventor: BOTT PAUL E , SHAW WILFRID G , BIGLER KENNETH L , TROTT LOUIS R , MIKO STEVE J , REILING VINCENT G , SEELY MICHAEL J , SURESH DEV D , FRIEDRICH MARIA S , SOCKELL EDWARD J , SHUKI ALBERT R JR , KECKLER KENNETH P , KOCJANCIC FRANK J , ROWE STEVEN J
IPC: B01J23/88 , B01D53/58 , C01C3/02 , C07B61/00 , C07C5/08 , C07C253/24 , C07C253/26 , C07C253/32 , C07C255/00 , C07C255/08 , C07C253/34
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.
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公开(公告)号:DE69414660D1
公开(公告)日:1998-12-24
申请号:DE69414660
申请日:1994-02-04
Applicant: STANDARD OIL CO OHIO
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 , SOCKELL EDWARD J , SURESH DEV D , TROTT LOUIS R
IPC: B01D53/58 , C01C3/02 , B01J23/88 , C07B61/00 , C07C5/08 , C07C253/24 , C07C253/26 , C07C253/32 , C07C255/00 , 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.
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