公开(公告)号：DE502006003491D1

公开(公告)日：2009-05-28

申请号：DE502006003491

申请日：2006-10-26

Applicant: BASF SE

Inventor： DIETERLE MARTIN ,  SCHINDLER GOETZ-PETER ,  KLANNER CATHARINA

IPC: C07C45/33 ,  C07C45/35 ,  C07C51/215 ,  C07C51/25

Abstract: A process for stably operating a continuous preparation process for obtaining acrolein or acrylic acid or a mixture thereof from propane, in which the feed rate of fresh propane to the process is utilized as a correcting element for stable steady-state operation.

公开(公告)号：ES2312042T3

公开(公告)日：2009-02-16

申请号：ES05821923

申请日：2005-12-19

Applicant: BASF SE

Inventor： CRONE SVEN ,  KLANNER CATHARINA ,  SCHINDLER GOTZ-PETER ,  DUDA MARK ,  BORGMEIER FRIEDER

IPC: C07C5/333 ,  C07C11/167

Abstract: Procedimiento para la obtención de butadieno a partir de n-butano, con los siguientes pasos: A) Facilitación de una corriente de gas de alimentación que contiene n-butano; B) Suministro de la corriente de gas de alimentación que contiene n-butano a, al menos, una primera zona de deshidrogenación y una deshidrogenación no oxidativa, catalítica de n-butano, obteniéndose una corriente de gas b que contiene n-butano, 1-buteno, 2- buteno, butadieno, hidrógeno, eventualmente vapor de agua, eventualmente óxidos de carbono y eventualmente gases inertes; C) Suministro de la corriente de gas b y de un gas que contiene oxígeno a, al menos, una segunda zona de deshidrogenación y una deshidrogenación oxidativa de 1-buteno y 2-buteno, obteniéndose una corriente de gas c que contiene n-butano, butadieno, hidrógeno, vapor de agua, eventualmente óxidos de carbono y eventualmente gases inertes; D) Compresión en, al menos, una primera etapa de compresión, y refrigeración de la corriente de gas c, obteniéndose al menos una corriente de condensado d1 que contiene agua y una corriente de gas d2 que contiene n-butano, butadieno, hidrógeno, vapor de agua, eventualmente óxidos de carbono y eventualmente gases inertes; E) Separación de la corriente de gas d2, a través de destilación extractiva, en una corriente de producto el que consiste, esencialmente, en butadieno y en una corriente e2 que contiene n-butano, hidrógeno, vapor de agua, eventualmente óxidos de carbono y eventualmente, gases inertes; F) Eventualmente, compresión en una o múltiples etapas de compresión y refrigeración de la corriente de gas e2, obteniéndose, al menos, una corriente de condensado f1 que contiene n-butano y agua y una corriente de gas f2 que contiene n-butano, hidrógeno, eventualmente óxidos de carbono y eventualmente gases inertes, y eventualmente un retorno de la corriente de condensado f1 a la primera zona de deshidrogenación; G) Separación de la corriente de gas f2 en una corriente de retorno g1 que contiene n-butano y una corriente de escape g2 que contiene hidrógeno, eventualmente óxidos de carbono y eventualmente gases inertes, a través del contacto de la corriente de gas f2 con un absorbente de elevado punto de ebullición y una posterior desorción de los componentes de gas disueltos en el absorbente.

公开(公告)号：DE502005004220D1

公开(公告)日：2008-07-03

申请号：DE502005004220

申请日：2005-11-11

Applicant: BASF SE

Inventor： CRONE SVEN ,  KLANNER CATHARINA ,  SCHINDLER GOETZ-PETER ,  DUDA MARK ,  BORGMEIER FRIEDER

IPC: C07C5/333 ,  C07C11/167

Abstract: Processes for producing butadiene from n-butane comprising: (a) providing a feed gas stream comprising n-butane; (b) non-oxidatively dehydrogenating the feed gas stream in the presence of a catalyst in a first dehydrogenation zone to form a first intermediate gas stream comprising n-butane, 1-butene, 2-butene, butadiene and hydrogen; (c) oxidatively dehydrogenating the first intermediate gas stream in the presence of an oxygenous gas having an oxygen content of at least 75% by volume in a second dehydrogenation zone to form a second intermediate gas stream comprising n-butane, butadiene, hydrogen, carbon dioxide and steam; (d) compressing and cooling the second intermediate gas to form a first condensate stream comprising water and a third intermediate gas stream comprising n-butane, butadiene, hydrogen, carbon dioxide and steam; (e) compressing and cooling the third intermediate gas to form a second condensate stream comprising n-butane, butadiene and water and a fourth intermediate gas stream comprising n-butane, butadiene, hydrogen and carbon dioxide; (1) cooling the fourth intermediate gas stream to form a third condensate stream comprising n-butane and butadiene, and an offgas stream comprising carbon dioxide and hydrogen; (g) removing water from the second condensate stream and combining the second condensate stream and third condensate stream to form a C 4 hydrocarbon stream comprising n-butane and butadiene; and (h) separating the C 4 hydrocarbon stream to form a recylce stream comprising n-butane and a product stream comprising butadiene; wherein at least a portion of the recycle stream is fed to the first dehydrogenation zone.

公开(公告)号：AT396162T

公开(公告)日：2008-06-15

申请号：AT05806496

申请日：2005-11-11

Applicant: BASF SE

Inventor： CRONE SVEN ,  KLANNER CATHARINA ,  SCHINDLER GOETZ-PETER ,  DUDA MARK ,  BORGMEIER FRIEDER

IPC: C07C5/333 ,  C07C11/167

Abstract: Processes for producing butadiene from n-butane comprising: (a) providing a feed gas stream comprising n-butane; (b) non-oxidatively dehydrogenating the feed gas stream in the presence of a catalyst in a first dehydrogenation zone to form a first intermediate gas stream comprising n-butane, 1-butene, 2-butene, butadiene and hydrogen; (c) oxidatively dehydrogenating the first intermediate gas stream in the presence of an oxygenous gas having an oxygen content of at least 75% by volume in a second dehydrogenation zone to form a second intermediate gas stream comprising n-butane, butadiene, hydrogen, carbon dioxide and steam; (d) compressing and cooling the second intermediate gas to form a first condensate stream comprising water and a third intermediate gas stream comprising n-butane, butadiene, hydrogen, carbon dioxide and steam; (e) compressing and cooling the third intermediate gas to form a second condensate stream comprising n-butane, butadiene and water and a fourth intermediate gas stream comprising n-butane, butadiene, hydrogen and carbon dioxide; (1) cooling the fourth intermediate gas stream to form a third condensate stream comprising n-butane and butadiene, and an offgas stream comprising carbon dioxide and hydrogen; (g) removing water from the second condensate stream and combining the second condensate stream and third condensate stream to form a C 4 hydrocarbon stream comprising n-butane and butadiene; and (h) separating the C 4 hydrocarbon stream to form a recylce stream comprising n-butane and a product stream comprising butadiene; wherein at least a portion of the recycle stream is fed to the first dehydrogenation zone.