公开(公告)号：EP2170494A1

公开(公告)日：2010-04-07

申请号：EP08774160.9

申请日：2008-06-20

Applicant: BASF SE

Inventor： BECHTEL, Marcus ,  HEPFER, Benjamin ,  WILLE, Michael ,  DAISS, Andreas ,  GEIER, Reiner ,  ISELBORN, Stefan

IPC: B01J8/00 ,  B01J8/02 ,  B01D3/00 ,  C10G49/00

CPC classification number: B01J8/008 ,  B01J8/025 ,  B01J8/0278 ,  B01J8/0453 ,  B01J8/0492 ,  B01J2208/00548 ,  C07C7/167 ,  C10G2400/20 ,  C07C11/08

Abstract: The invention relates to a reactor (R) for performing a three-phase reaction of a fluid phase (1) and a gaseous phase (2) on a packed bed catalyst (F), the packed bed catalyst (F) being disposed horizontally in the reactor (R) and the fluid phase (1) and the gaseous phase (2) being fed through the reactor (R) from the bottom to the top, using a mixing and distributing device (MV) across the packed bed catalyst (F), characterized in that the mixing and distributing device (MV) comprises a trough distributor (TV) for the fluid phase (1) having trough-shaped channels (K) and drain tubes (A) in the trough-shaped channels (K) for the fluid phase (1), and a distributor floor (B) disposed below and at a distance from the trough distributor (TV) in which vertical spouts (T) are disposed, having one or more openings (P1) for the inlet of the gaseous phase (2) and one or more openings (P2) disposed below the openings (P1) for the inlet of the gaseous phase, for the inlet of the fluid phase (1) into the spouts (T), and the number and size of the openings (P2) for the inlet of the fluid phase (1) being designed such that the fluid level on the distribution floor (B) is adjusted to be below the openings (P1) for the inlet of the gaseous phase (2) and above the openings (P2) for the inlet of the fluid phase (1) for a prescribed inlet flow of fluid.

公开(公告)号：EP1587797B1

公开(公告)日：2010-08-11

申请号：EP04702691.9

申请日：2004-01-16

Applicant: BASF SE

Inventor： KUHRS, Christian ,  DANZ, Eckehard ,  STEINER, Wolfgang ,  RAHN, Ralf-Thomas ,  GRASSLER, Thomas ,  GEIER, Reiner ,  HARTH, Klaus ,  HÖLZLE, Markus

IPC: C07D251/60

CPC classification number: C07D251/60

Abstract: The invention relates to a method for the catalytic production of melamine by the decomposition of urea in particular on solid catalysts using a main and post reactor. A catalyst of low Lewis acidity is employed in the main reactor and in the post reactor a catalyst is employed with the same or preferably a greater Lewis acidity.

公开(公告)号：EP2170494B1

公开(公告)日：2011-08-17

申请号：EP08774160.9

申请日：2008-06-20

Applicant: BASF SE

Inventor： BECHTEL, Marcus ,  HEPFER, Benjamin ,  WILLE, Michael Hyatt Regency Xian, ,  DAISS, Andreas ,  GEIER, Reiner ,  ISELBORN, Stefan ,  SAUTER, John

IPC: B01J8/00 ,  B01J8/02 ,  B01D3/00 ,  C10G49/00

CPC classification number: B01J8/008 ,  B01J8/025 ,  B01J8/0278 ,  B01J8/0453 ,  B01J8/0492 ,  B01J2208/00548 ,  C07C7/167 ,  C10G2400/20 ,  C07C11/08

Abstract: The invention relates to a reactor (R) for performing a three-phase reaction of a fluid phase (1) and a gaseous phase (2) on a packed bed catalyst (F), the packed bed catalyst (F) being disposed horizontally in the reactor (R) and the fluid phase (1) and the gaseous phase (2) being fed through the reactor (R) from the bottom to the top, using a mixing and distributing device (MV) across the packed bed catalyst (F), characterized in that the mixing and distributing device (MV) comprises a trough distributor (TV) for the fluid phase (1) having trough-shaped channels (K) and drain tubes (A) in the trough-shaped channels (K) for the fluid phase (1), and a distributor floor (B) disposed below and at a distance from the trough distributor (TV) in which vertical spouts (T) are disposed, having one or more openings (P1) for the inlet of the gaseous phase (2) and one or more openings (P2) disposed below the openings (P1) for the inlet of the gaseous phase, for the inlet of the fluid phase (1) into the spouts (T), and the number and size of the openings (P2) for the inlet of the fluid phase (1) being designed such that the fluid level on the distribution floor (B) is adjusted to be below the openings (P1) for the inlet of the gaseous phase (2) and above the openings (P2) for the inlet of the fluid phase (1) for a prescribed inlet flow of fluid.