公开(公告)号：DE50312887D1

公开(公告)日：2010-08-26

申请号：DE50312887

申请日：2003-04-29

Applicant: BASF SE

Inventor： ADRIAN TILL ,  HEIDA BERND ,  KINDLER KLAUS

IPC: B01D3/14 ,  C07C7/08 ,  B01D3/40 ,  C07C9/10 ,  C07C11/08

公开(公告)号：AT390396T

公开(公告)日：2008-04-15

申请号：AT03771068

申请日：2003-07-22

Applicant: BASF SE

Inventor： ADRIAN TILL ,  HILL THOMAS ,  KINDLER KLAUS ,  HEIDA BERND

IPC: C07C7/08 ,  B01D3/40 ,  C07C5/22

Abstract: In a continuous process for fractionating a C4 fraction (C4) by extractive distillation using a selective solvent (LM) in an extractive distillation column (EDK), it is proposed that a dividing wall (TW) is installed in the longitudinal direction in the extractive distillation column (EDK) to form a first region (A), a second region (B) and a lower combined column region (C) and a top stream (C4H10) comprising the butanes is taken off from the first region (A), a top stream (C4H8) comprising the butenes is taken off from the second region (B) and a stream (C4H6) comprising the hydrocarbons from the C4 fraction which are more soluble in the selective solvent (LM) than are the butanes and the butenes is taken off from the lower combined column region (C).

公开(公告)号：PL1656334T3

公开(公告)日：2008-01-31

申请号：PL04763397

申请日：2004-07-22

Applicant: BASF SE

Inventor： HEIDA BERND

IPC: C07C7/08

公开(公告)号：PL1718585T3

公开(公告)日：2012-10-31

申请号：PL05701352

申请日：2005-02-04

Applicant: BASF SE

Inventor： HEIDA BERND

IPC: C07C7/08 ,  C07C11/167

公开(公告)号：DE102009046310A1

公开(公告)日：2010-05-27

申请号：DE102009046310

申请日：2009-11-03

Applicant: BASF SE

Inventor： STABEL UWE ,  ZACHMANN HARRY ,  GAFFRON EBERHARD ,  HEIDA BERND ,  JAEGER MICHAEL

IPC: C07C11/167 ,  B01D3/34

Abstract: A process is proposed for distillatively obtaining pure 1,3-butadiene from crude 1,3-butadiene in a plant comprising one or more distillation columns, comprising supply of a feed stream of crude 1,3-butadiene to the one distillation column or the first of the plurality of distillation columns, the one distillation column or the plurality of distillation columns having a flange with an internal diameter of ≧80 mm, comprising two mutually opposite plane-parallel surfaces (1) with an intermediate seal (2) which seals the interior of the one distillation column or of the first of the plurality of distillation columns from an intermediate space (3) on the atmosphere side between the two mutually opposite plane-parallel surfaces (1), and the intermediate space (3) on the atmosphere side between the two mutually opposite plane-parallel surfaces (1) being closed off from the atmosphere to form a chamber, wherein the chamber is purged continuously during the operation of the plant with a low-oxygen gas or a low-oxygen liquid comprising 1% by weight of molecular oxygen or less, based on the total weight of the low-oxygen gas or of the low-oxygen liquid.

公开(公告)号：DE502004006921D1

公开(公告)日：2008-06-05

申请号：DE502004006921

申请日：2004-05-19

Applicant: BASF SE

Inventor： HEIDA BERND

IPC: C07C7/08 ,  C07C11/167

Abstract: A process for recovering crude 1,3-butadiene from a C4 fraction by extractive distillation using a selective solvent in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column to form a first subregion (A), a second subregion (B) and a lower common column region (C) and which is preceded by an extractive scrubbing column (K), wherein the operation of the dividing wall column (TK) is set by regulation of the energy input into the dividing wall column (TK) via a bottom vaporizer (V) and setting of the number of the theoretical plates in the lower common column region (C) so that a bottom stream (17) consisting of purified solvent is obtained from the dividing wall column (TK), is proposed.

公开(公告)号：ES2384799T3

公开(公告)日：2012-07-12

申请号：ES05701352

申请日：2005-02-04

Applicant: BASF SE

Inventor： HEIDA BERND

IPC: C07C7/08 ,  C07C11/167

Abstract: Procedimiento para la obtención de 1, 3-butadieno crudo mediante destilación por extracción con un disolvente selectivo a partir de una fracción con 4 átomos de carbono, que contiene acetilenos con 4 átomos de carbono como componentes secundarios, en una columna de pared separadora (TK) con un evaporador de cola (V1), en el que está dispuesta una pared separadora (T) en el sentido longitudinal de la columna bajo formación de una primera zona parcial (A), una segunda zona parcial (B), y una zona de columna inferior común (C), y a la que está preconectada una columna de lavado por extracción (K), caracterizado porque la alimentación de energía en la columna de pared separadora (TK) a través del evaporador de cola (V1) se regula de modo que a partir de la columna de pared separadora (TK) se extrae una corriente de cola (17), que contiene disolvente cargado con acetilenos con 4 átomos de carbono, cuya fracción en 1, 3-butadieno está limitada como máximo a 0, 1 hasta 2 veces la fracción de acetilenos con 4 átomos de carbono, de modo que la pérdida de 1, 3-butadieno es aceptable desde el punto de vista económico, y de modo que la corriente de cola (17) se alimenta a un desgasificador de acetileno (AG), y en el desgasificador de acetileno (AG) se destilan los acetilenos con 4 átomos de carbono a través de la cabeza, y se obtiene disolvente purificado como corriente de cola (27).

公开(公告)号：DE50312750D1

公开(公告)日：2010-07-08

申请号：DE50312750

申请日：2003-12-11

Applicant: BASF SE

Inventor： HEIDA BERND

IPC: B01D3/40 ,  C07C5/03 ,  C07C7/08

公开(公告)号：AT468897T

公开(公告)日：2010-06-15

申请号：AT03812597

申请日：2003-12-11

Applicant: BASF SE

Inventor： HEIDA BERND

IPC: B01D3/40 ,  C07C5/03 ,  C07C7/08

Abstract: A process for the separation of a reaction mixture of two or more components by extractive distillation with a selective solvent in a partition wall column comprises carrying out the process in a partition wall column having a partition wall that extends to the upper end of the column and separates the inside of the column into a first region and a second region with a lower common region. A process for the separation of a reaction mixture of two or more components by extractive distillation with a selective solvent in a partition wall column (I) comprises: (a) carrying out the process in a partition wall column having a partition wall that extends to the upper end of the column and separates the inside of the column into a first region (A1) and a second region (A2) with a lower common region; (b) feeding the reaction mixture to the first region (A1) and withdrawal of a first head stream (B1) from (A1) and withdrawal of a second head stream (B2) from the second region (A2) having predefined specifications; (c) addition of the selective solvent to the upper part of the second region (A1) and/or the upper part of second region (A2) whereby the amount of solvent fed to regions (A) and (A2) is adjusted such that the pre-defined specifications for the head streams (B1) and (B2) are maintained. An Independent claim is included for the partition wall column (I).

公开(公告)号：ES2301994T3

公开(公告)日：2008-07-01

申请号：ES04733803

申请日：2004-05-19

Applicant: BASF SE

Inventor： HEIDA BERND

IPC: C07C7/08 ,  C07C11/167

Abstract: Procedimiento para la obtención de 1,3-butadieno bruto mediante destilación extractiva a partir de una fracción de C4 con un disolvente selectivo en una columna de pared separadora (TK), en la que se dispone una pared separadora (T) en la dirección longitudinal de la columna con formación de una primera zona parcial (A), de una segunda zona parcial (B) y de una zona inferior común de la columna (C) y a la que precede una columna de lavado extractiva (K), caracterizado porque el modo de operación de la columna de pared separadora (TK) se ajusta mediante regulación del aporte energético a la columna de pared separadora (TK) a través de un evaporador de fondo (V) e interpretación del número de etapas teóricas de separación en la zona inferior común de la columna (C), de forma que de la columna de pared separadora (TK) se obtenga una corriente de fondo (17), que consista en disolvente purificado.