公开(公告)号：AT262372T

公开(公告)日：2004-04-15

申请号：AT00985245

申请日：2000-12-22

Applicant: BASF AG

Inventor： BLOCK ULRICH ,  SEUBERT ROLF ,  ULRICH BERNHARD ,  WUNSCHMANN HELMUT

IPC: B01F23/10 ,  B01F3/04 ,  B01F5/04

Abstract: A process and an apparatus for producing a homogeneous mixture of a gaseous aromatic hydrocarbon and an oxygen-containing gas for catalytic gas-phase reactions, in particular a homogeneous mixture of gaseous o-xylene and/or naphthalene and air for preparing phthalic anhydride, are provided. The liquid aromatic hydrocarbon is atomized to form droplets having a diameter of less than 1 mm and injected into an oxygen-containing gas stream (12) preheated to above the boiling point of the aromatic hydrocarbon. According to the invention, the liquid aromatic hydrocarbon is atomized by means of nozzles (15) which form a hollow cone (16), preferably by means of swirl nozzles. The o-xylene/air mixture is advantageously produced in a chamber which is bounded by side walls (18) heated to above the boiling point of the hydrocarbon.

公开(公告)号：DE50005821D1

公开(公告)日：2004-04-29

申请号：DE50005821

申请日：2000-12-22

Applicant: BASF AG

Inventor： BLOCK ULRICH ,  SEUBERT ROLF ,  ULRICH BERNHARD ,  WUNSCHMANN HELMUT

IPC: B01F23/10 ,  B01F3/04 ,  B01F5/04

Abstract: A process and an apparatus for producing a homogeneous mixture of a gaseous aromatic hydrocarbon and an oxygen-containing gas for catalytic gas-phase reactions, in particular a homogeneous mixture of gaseous o-xylene and/or naphthalene and air for preparing phthalic anhydride, are provided. The liquid aromatic hydrocarbon is atomized to form droplets having a diameter of less than 1 mm and injected into an oxygen-containing gas stream (12) preheated to above the boiling point of the aromatic hydrocarbon. According to the invention, the liquid aromatic hydrocarbon is atomized by means of nozzles (15) which form a hollow cone (16), preferably by means of swirl nozzles. The o-xylene/air mixture is advantageously produced in a chamber which is bounded by side walls (18) heated to above the boiling point of the hydrocarbon.

公开(公告)号：ES2218265T3

公开(公告)日：2004-11-16

申请号：ES00985245

申请日：2000-12-22

Applicant: BASF AG

Inventor： BLOCK ULRICH ,  SEUBERT ROLF ,  ULRICH BERNHARD ,  WUNSCHMANN HELMUT

IPC: B01F23/10 ,  B01F3/04 ,  B01F5/04

Abstract: A process and an apparatus for producing a homogeneous mixture of a gaseous aromatic hydrocarbon and an oxygen-containing gas for catalytic gas-phase reactions, in particular a homogeneous mixture of gaseous o-xylene and/or naphthalene and air for preparing phthalic anhydride, are provided. The liquid aromatic hydrocarbon is atomized to form droplets having a diameter of less than 1 mm and injected into an oxygen-containing gas stream (12) preheated to above the boiling point of the aromatic hydrocarbon. According to the invention, the liquid aromatic hydrocarbon is atomized by means of nozzles (15) which form a hollow cone (16), preferably by means of swirl nozzles. The o-xylene/air mixture is advantageously produced in a chamber which is bounded by side walls (18) heated to above the boiling point of the hydrocarbon.

公开(公告)号：MY125936A

公开(公告)日：2006-09-29

申请号：MYPI20005923

申请日：2000-12-15

Applicant: BASF AG

Inventor： BLOCK ULRICH DR ,  SEUBERT ROLF DR ,  ULRICH BERNHARD DR ,  WUNSCHMANN HELMUT

IPC: B01F23/10

Abstract: A PROCESS AND APPARATUS FOR PRODUCING A HOMOGENEOUS MIXTURE OF A GASEOUS AROMATIC HYDROCARBON AND AN OXYGEN-CONTAINING GAS FOR CATALYTIC GAS-PHASE REACTIONS, IN PARTICULAR A HOMOGENEOUS MIXTURE OF GASEOUS O-XYLENE AND/OR NAPHTHALENE AND AIR FOR PREPARING PHTHALIC ANHYDRIDE, ARE PROVIDED. THE LIQUID AROMATIC HYDROCARBON IS ATOMIZED TO FORM DROPLETS HAVING A DIAMETE OF LESS THAN 1 MM AND INJECTED INTO AN OXYGEN-CONTAINING GAS STREAM (12) PREHEATED TO ABOVE THE BOILING POINT OF THE AROMATIC HYDROCARBON. ACCORDING TO THE INVENTION, THE LIQUID AROMATIC HYDROCARBON IS ATOMIZED BY MEANS OF NOZZLES (15) WHICH FORM A HOLLOW CONE (16), PREFERABLY BY MEANS OF SWIRL NOZZLES. THE O-XYLENE/AIR MIXTURE IS ADVANTAGEOUSLY PRODUCED IN A CHAMBER WHICH IS BOUNDED BY SIDE WALLS (18) HEATED TO ABOVE THE BOILING POINT OF THE HYDROCARBON

公开(公告)号：AU2172001A

公开(公告)日：2001-07-09

申请号：AU2172001

申请日：2000-12-22

Applicant: BASF AG

Inventor： BLOCK ULRICH ,  SEUBERT ROLF ,  ULRICH BERNHARD ,  WUNSCHMANN HELMUT

IPC: B01F23/10 ,  B01F3/04 ,  B01F5/04

Abstract: A process and an apparatus for producing a homogeneous mixture of a gaseous aromatic hydrocarbon and an oxygen-containing gas for catalytic gas-phase reactions, in particular a homogeneous mixture of gaseous o-xylene and/or naphthalene and air for preparing phthalic anhydride, are provided. The liquid aromatic hydrocarbon is atomized to form droplets having a diameter of less than 1 mm and injected into an oxygen-containing gas stream (12) preheated to above the boiling point of the aromatic hydrocarbon. According to the invention, the liquid aromatic hydrocarbon is atomized by means of nozzles (15) which form a hollow cone (16), preferably by means of swirl nozzles. The o-xylene/air mixture is advantageously produced in a chamber which is bounded by side walls (18) heated to above the boiling point of the hydrocarbon.

公开(公告)号：DE19962616A1

公开(公告)日：2001-06-28

申请号：DE19962616

申请日：1999-12-23

Applicant: BASF AG

Inventor： BLOCK ULRICH ,  SEUBERT ROLF ,  ULRICH BERNHARD ,  WUNSCHMANN HELMUT

IPC: C07B61/00 ,  C07D307/89 ,  B01F5/02

Abstract: Production of a homogeneous mixture of an aromatic hydrocarbon vapor and an oxygen containing gas for catalytic gas phase reactions, comprises spraying droplets of the liquid aromatic hydrocarbon having a diameter of less than 1 mm, into the oxygen containing gas stream, heated to above the b.pt. of the hydrocarbon, by means of nozzles, preferably rifled nozzles to form a hollow cone. An Independent claim is included for a device for the production of the vapor mixture (I) having gas channels (11) for the pre-heated oxygen containing gas stream (12); a spray device (13) opening into one channel (11) for a liquid aromatic hydrocarbon stream whereby the spray device (13) has rifled nozzles (15) and the gas channels (11) have walls (18) that extend at least away from the nozzles (15) and are heated to at least the b.pt. of the hydrocarbon.