公开(公告)号：US20150246343A1

公开(公告)日：2015-09-03

申请号：US14633433

申请日：2015-02-27

Applicant: BASF SE

Inventor： Ulrich HAMMON ,  Cathrin Alexandra WELKER-NIEUWOUDT ,  Josef MACHT ,  Christian WALSDORFF ,  Cornelia Katharina DOBNER

IPC: B01J23/888 ,  B01J35/10 ,  C07C5/48 ,  B01J37/00 ,  C07C51/235 ,  C07D307/89 ,  B01J35/00 ,  B01J37/02

CPC classification number: B01J23/8885 ,  B01J23/002 ,  B01J23/007 ,  B01J23/70 ,  B01J23/8877 ,  B01J32/00 ,  B01J35/0006 ,  B01J35/1009 ,  B01J37/0009 ,  B01J37/0215 ,  B01J2219/30203 ,  B01J2219/30475 ,  C07C5/48 ,  C07C51/235 ,  C07C51/252 ,  C07C51/313 ,  C07C2523/888 ,  C07D307/89 ,  C07C57/04

Abstract: The invention relates to an oxidation catalyst comprising at least one inorganic, oxidic or ceramic, shaped support body having a BET surface area of less than 0.5 m2/g, based on the support, which is at least partly coated with a catalytically active multielement oxide, the catalyst being precious metal-free and the shaped support body having the form of a saddle whose saddle surface is curved oppositely in the two principal directions, to a process for producing it, to its use in various catalytic gas phase oxidations, and to corresponding processes for catalytic gas phase oxidation.

Abstract translation: 本发明涉及一种氧化催化剂，其包含至少一种基于载体的至少一种BET表面积小于0.5m 2 / g的无机，氧化或陶瓷形状的支撑体，所述载体至少部分地涂覆有催化活性多元素氧化物 ，催化剂是无贵金属的，并且具有鞍座形式的成形支撑体，其鞍形面在两个主要方向上相对弯曲，形成为其制造方法，用于各种催化气相氧化，以及 催化气相氧化的相应过程。

公开(公告)号：US20240198263A1

公开(公告)日：2024-06-20

申请号：US18288043

申请日：2022-04-19

Applicant: BASF SE

Inventor： Yunfei ZHOU ,  Ortmund LANG ,  Matthias Wilhelm MEIER ,  Cornelis Hendricus DE RUITER ,  Marvin KRAMP ,  Gregor GRACKIEWICZ ,  Josef MACHT ,  Markus GITTER ,  Claus HECHLER

IPC: B01D45/16 ,  B01D47/06

CPC classification number: B01D45/16 ,  B01D47/06

Abstract: The invention relates to a centrifugal droplet separator for separating liquid droplets out of a gas stream, comprising a shell (1) having a circular cross section and a vertical longitudinal axis (11), an upper hood (2) that bounds the shell (1) at the top and has a gas exit port (7) for the gas stream cleaned in the centrifugal droplet separator, a drip plate (8) disposed beneath the gas exit port (7), a lower hood (10) that bounds the shell (1) at the bottom and has a liquid exit port (4) for removal of the deposited liquid droplets, and an inlet (3) that opens tangentially into the shell (1) for supply of the gas stream,



wherein
there are at least two nozzles (9) for feeding a stabilizer liquid into the interior of the centrifugal droplet separator, the respective nozzle outlet (15) of which is disposed between the tangential inlet (3) and the drip plate (8) in vertical direction, where the main spraying direction (12) of the nozzles (9) is directed upward at an internal angle of 0 to 60° relative to the vertical longitudinal axis (11).




The invention additionally also relates to a method of separating liquid droplets out of a gas stream in such a centrifugal droplet separator.

公开(公告)号：US20150133687A1

公开(公告)日：2015-05-14

申请号：US14536969

申请日：2014-11-10

Applicant: BASF SE

Inventor： Josef MACHT ,  Christian WALSDORFF ,  Cornelia Katharina DOBNER ,  Cathrin Alexandra WELKER-NIEUWOUDT ,  Ulrich HAMMON

IPC: C07C51/25 ,  B01J23/887 ,  C07C45/35

CPC classification number: C07C51/252 ,  B01J23/8876 ,  C07C45/35 ,  C07C47/22 ,  C07C57/04

Abstract: An α,β-unsaturated aldehyde and/or an α,β-unsaturated carboxylic acid are prepared by gas phase oxidation of alkene with molecular oxygen over a fixed catalyst bed comprising a bed of hollow cylindrical shaped catalyst bodies having a multimetal oxide active composition. The fixed catalyst bed comprises at least three successive reaction zones; the highest local temperature in the fixed catalyst bed does not occur in the reaction zone closest to the reactor outlet; the highest local temperature in the fixed catalyst bed does not occur in the reaction zone closest to the reactor inlet; and the value WT=(ED−ID)/2 in the reaction zone in which the highest local temperature in the fixed catalyst bed occurs is lower than in the other reaction zones, in which ED is the external diameter and ID is the internal diameter of the shaped catalyst body. The yield of the products of value is enhanced in this way.

Abstract translation: 通过在固定的催化剂床上用分子氧气气氧化烯烃制备α，β-不饱和醛和/或α，β-不饱和羧酸，所述催化剂床包含具有多金属氧化物活性的中空圆柱形催化剂体床 组成。 固定的催化剂床包括至少三个连续的反应区; 在最接近反应器出口的反应区域内不会发生固定催化剂床中最高的局部温度; 固定催化剂床中最高的局部温度不会在最接近反应器入口的反应区中发生; 在固定催化剂床中发生最高局部温度的反应区域中的值WT =（ED-ID）/ 2低于其他反应区域，其中ED为外径，ID为内径 的成形催化剂体。 以这种方式提高了产品的产量。