公开(公告)号：EP1831134B1

公开(公告)日：2008-10-01

申请号：EP05821923.9

申请日：2005-12-19

Applicant: BASF SE

Inventor： CRONE, Sven ,  KLANNER, Catharina ,  SCHINDLER, Götz-Peter ,  DUDA, Mark ,  BORGMEIER, Frieder

IPC: C07C5/333 ,  C07C11/167

CPC classification number: C07C5/333 ,  C07C11/167

Abstract: The invention relates to a method for producing butadiene from n-butane, comprising the following steps: A) providing a gas feedstream (a) containing n-butane; B) feeding the gas feedstream (a) containing n-butane to at least one first dehydrogenation zone and carrying out a non-oxidative, catalytic dehydrogenation of n-butane, thereby obtaining a gas stream (b) comprising n-butane, 1-butene, 2-butene, butadiene, hydrogen, optionally water vapor, optionally carbon monoxides and optionally inert gases; C) feeding the gas stream (b) and an oxygen-containing gas to at least one second dehydrogenation zone and carrying out an oxidative dehydrogenation of 1-butene and 2-butene, thereby obtaining a gas stream (c) comprising n-butane, butadiene, hydrogen, water vapor, optionally carbon monoxides and optionally inert gases; D) compressing, in at least one first compression step, and cooling the gas stream (c), thereby obtaining at least one condensate stream (d1) comprising water and a gas stream (d2) comprising n-butane, butadiene, hydrogen, water vapor, optionally carbon monoxides and optionally inert gases; E) separating the gas stream (d2) by extractive distillation into a product stream (e1) substantially consisting of butadiene and a stream (e2) comprising n-butane, hydrogen, water vapor, optionally carbon monoxides and optionally inert gases; F) optionally compressing, in one or more compression steps, and cooling the gas stream (e2), thereby obtaining at least one condensate stream (f1) comprising n-butane and water and a gas stream (f2) comprising n-butane, hydrogen, optionally carbon monoxides and optionally inert gases, and optionally redirecting the condensate stream (f1) to the first dehydrogenation zone; G) separating the gas stream (f2) into a recirculation stream (g1) comprising n-butane and a discharge stream (g2) comprising hydrogen, optionally carbon monoxides and optionally inert gases by contacting the gas stream (f2) with a high-boiling absorbent and finally desorbing the gaseous components dissolved in the absorbent.

公开(公告)号：EP1617948B1

公开(公告)日：2011-07-13

申请号：EP04725311.7

申请日：2004-04-02

Applicant: BASF SE

Inventor： SACHWEH, Bernd ,  HUBER, Günther ,  DUDA, Mark ,  MATTKE, Torsten ,  OLBERT, Gerhard

IPC: B01J37/02

CPC classification number: B01J37/0232 ,  B01J37/0215 ,  B01J37/0221

Abstract: The invention relates to a method for coating internal fittings in a reactor, except for electrically heatable, at least partly open-cell foams, with a catalytically active material or a precursor therefor. According to said method, aerosol containing the catalytically active material or the precursor therefor as a dispersed phase is provided and is directed through the reactor at a speed which is set in such a way that the dispersed phase of the aerosol deposits on the internal fittings of the reactor.

公开(公告)号：EP1708977B1

公开(公告)日：2010-06-09

申请号：EP04804420.0

申请日：2004-12-30

Applicant: BASF SE

Inventor： JOHANN, Thorsten ,  SCHINDLER, Götz-Peter ,  BRODHAGEN, Andreas ,  CRONE, Sven ,  BENFER, Regina ,  SIGL, Marcus ,  DUDA, Mark

IPC: C07C5/333 ,  C07C11/167

CPC classification number: C07C5/327 ,  C07C5/333 ,  C07C5/48 ,  C07C11/167

Abstract: The invention relates to a method for producing butadiene from n-butane, comprising the steps of A) providing an input gas flow a containing n-butane; B) feeding said input gas flow a containing n-butane into at least one first dehydrogenation zone and dehydrogenating n-butane in a non-oxidative catalytic manner, whereby a product gas flow b containing n-butane, 1-butene, 2-butene, butadiene, hydrogen, low-boiling secondary components, and optional steam is obtained; C) feeding the product gas flow b resulting from the non-oxidative catalytic dehydrogenation process and an oxygen-containing gas into at least one second dehydrogenation zone and oxidatively dehydrogenating 1-butene and 2-butene, whereby a product gas flow c containing n-butane, 2-butene, butadiene, hydrogen, low-boiling secondary components, and steam is obtained, said second product gas flow c having a higher butadiene content than product gas flow b; D) eliminating hydrogen, the low-boiling secondary components, and steam, whereby a C4 product gas flow d essentially comprising n-butane, 2-butene, and butadiene is obtained; E) separating the C4 product gas flow d into a recirculation flow e1 essentially comprising n-butane and 2-butene and a valuable product flow e2 substantially comprising butadiene by means of extractive distillation; F) feeding flow e1 essentially comprising n-butane and 2-butene as well as a circulating flow g containing 1-butene and 2-butene into a distillation zone and separating the same into a 1-butene-rich valuable product flow f1, a recirculation flow f2 containing 2-butene and n-butane, and a flow f3 containing 2-butene, and redirecting the recirculation flow f2 into the first dehydrogenation zone; G) feeding flow f3 containing 2-butene into an isomerization zone and isomerizing 2-butene to 1-butene, whereby a circulating flow g containing 1-butene and 2-butene is obtained, and redirecting the circulating gas flow g into the distillation zone.

公开(公告)号：EP1701928B1

公开(公告)日：2008-04-23

申请号：EP04804419.2

申请日：2004-12-30

Applicant: BASF SE

Inventor： JOHANN, Thorsten ,  SCHINDLER, Götz-Peter ,  BRODHAGEN, Andreas ,  CRONE, Sven ,  DUDA, Mark

IPC: C07C5/333 ,  C07C11/167

CPC classification number: C07C5/333 ,  C07C5/48 ,  C07C11/167

Abstract: The invention relates to a method for producing butadiene from n-butane, comprising the steps of A) providing an input gas flow a containing n-butane; B) feeding said input gas flow a containing n-butane into at least one first dehydrogenation zone and dehydrogenating n-butane in a non-oxidative catalytic manner, whereby a product gas flow b containing n-butane, 1-butene, 2-butene, butadiene, hydrogen, low-boiling secondary components, and optional steam is obtained; C) feeding the product gas flow b resulting from the non-oxidative catalytic dehydrogenation process and an oxygen-containing gas into at least one second dehydrogenation zone and oxidatively dehydrogenating 1-butene and 2-butene, whereby a product gas flow c containing n-butane, 2-butene, butadiene, hydrogen, low-boiling secondary components, and steam is obtained, said second product gas flow c having a higher butadiene content than product gas flow b; D) eliminating hydrogen, the low-boiling secondary components, and steam, whereby a C4 product gas flow d essentially comprising n-butane, 2-butene, and butadiene is obtained; E) feeding the C4 product gas flow d into a distillation zone and separating a butadiene/butane mixture as a valuable product flow e1 such that a flow e2 substantially comprising n-butane and 2-butene remains; F) redirecting flow e2 into the first dehydrogenation zone.

公开(公告)号：EP1828080B1

公开(公告)日：2011-02-23

申请号：EP05849467.5

申请日：2005-12-07

Applicant: BASF SE

Inventor： CRONE, Sven ,  KLANNER, Catharina ,  SCHINDLER, Götz-Peter ,  DUDA, Mark ,  BORGMEIER, Frieder

IPC: C07C5/333 ,  C07C11/167

CPC classification number: C07C11/167 ,  C07C5/48

Abstract: The invention relates to a method for producing butadiene from n-butane comprising the following steps: A) a feed gas stream (a) which contains an n-butane is prepared; B) the feed gas stream (a) containing the n-butane is introduced into at least one first dehydrogenation zone and the said n-butane in dehydrogenated in a non-oxidative, catalytic manner, whereby a gas flow (b) containing n-butane, 1-butene, 2-butene, butadiene, hydrogen, optionally carbon dioxide and optionally water vapour is contained; C) the gas flow (b) and a gas containing oxygen is fed into at least one second dehydrogenation zone and the 1-butene and 2-butene is oxidatively dehydrogenated, whereby a gas flow (c) containing n-butane, butadiene, hydrogen, carbon dioxide and water vapour is obtained; D) compression is carried out in at least one first compression step and the gas flow is cooled (c), whereby at least one condensate flow (d1) which contains water and a gas flow (d2) containing n-butane, butadiene, hydrogen, carbon dioxide and water vapour is obtained, E) the gas flow (d2) is separated by means of extractive distillation in a product flow (e1) which is made of, essentially butadiene and a flow (e2) containing n-butane, hydrogen, carbon dioxide and water vapour (e2), F) compression is carried out in at least one additional compression step and the gas flow (e2) is cooled, whereby at least one condensate flow (f1) which contains n-butane and water and a gas flow (f2) containing n-butane, hydrogen and carbon dioxide is obtained, G) the gas flow (f2) is cooled, whereby the condensate flow (g1) containing n-butane and a waste gas flow (g2) containing carbon dioxide and hydrogen are obtained, H) water is separated from the at least one condensate flow (f1) and, optionally, the condensate flow (g1) by phase separation, whereby at least the return flow (h1) containing n-butane and at least one waste water flow (h2) are obtained, and g the at least one return flow (h1) is returned in the first dehydrogenation zone.

公开(公告)号：EP1487575B2

公开(公告)日：2009-04-01

申请号：EP03708212.0

申请日：2003-03-12

Applicant: BASF SE

Inventor： WEIGUNY, Jens ,  STORCK, Sebastian ,  DUDA, Mark ,  DOBNER, Cornelia ,  FELDER, Raimund

IPC: B01J27/198

CPC classification number: B01J8/10 ,  B01J8/067 ,  B01J19/22 ,  B01J27/198 ,  B01J35/023 ,  B01J35/026 ,  B01J35/1014 ,  B01J35/1038 ,  B01J37/0009 ,  B01J37/08 ,  B01J37/14 ,  B01J37/18 ,  B01J2208/00849 ,  B01J2208/00876 ,  B01J2219/182 ,  C07C51/215 ,  C07C51/252 ,  C07C57/145

Abstract: Disclosed is a method for producing a catalyst containing vanadium, phosphorus, and oxygen, which is used for oxidizing the gas phase of a hydrocarbon having at least four carbon atoms to maleic anhydride. According to the inventive method, a corresponding catalyst precursor which contains vanadium, phosphorus, and oxygen and is provided with particles having an average diameter of at least 2 mm is converted into a catalytically active form by means of calcination, and a flow of the catalyst precursor is transported on a conveyor belt across at least one calcination area over a distance ln at an essentially steady speed in order to be calcinated. The variation over time of the gas temperature in relation to the set point value amounts to ≤ 5 °C at each position in the area of the flow of the catalyst precursor, which lies within the second half ln/2 of the calcination area, while the local difference in the gas temperature between any positions in the area of the flow of the catalyst precursor, which is located within the second half ln/2 of the calcination area, amounts to ≤ 5 °C.

公开(公告)号：EP1915210A1

公开(公告)日：2008-04-30

申请号：EP06777912.4

申请日：2006-07-21

Applicant: BASF SE

Inventor： DOBNER, Cornelia ,  DUDA, Mark ,  RAICHLE, Andreas ,  WILMER, Hagen ,  ROSOWSKI, Frank ,  HÖLZLE, Markus

IPC: B01J27/198 ,  B01J23/847 ,  B01J37/00 ,  B01J21/18 ,  B01J37/04

CPC classification number: B01J37/0009 ,  B01J23/002 ,  B01J23/8472 ,  B01J27/198 ,  B01J35/002 ,  B01J37/031 ,  B01J37/04 ,  B01J37/16 ,  B01J2523/00 ,  C07C51/215 ,  C07C57/145 ,  B01J2523/51 ,  B01J2523/55 ,  B01J2523/842

Abstract: The invention relates to a catalyst for producing maleic anhydride by heterogeneous catalytic gas phase oxidation of a hydrocarbon with at least for carbon atoms, which contains a catalytically active substance containing vanadium, phosphorous, iron and oxygen, the catalytically active substance having an iron/vanadium atom ratio of 0.005 to

公开(公告)号：EP1487577B1

公开(公告)日：2009-07-01

申请号：EP03709774.8

申请日：2003-03-12

Applicant: BASF SE

Inventor： WEIGUNY, Jens ,  STORCK, Sebastian ,  DUDA, Mark ,  DOBNER, Cornelia

IPC: B01J27/198 ,  C07C51/215 ,  C07C51/25

CPC classification number: C07C51/252 ,  B01J23/002 ,  B01J27/198 ,  B01J35/002 ,  B01J35/1014 ,  B01J37/0018 ,  B01J37/031 ,  B01J2523/00 ,  C07C51/215 ,  C07C57/145 ,  B01J2523/51 ,  B01J2523/55

Abstract: The invention relates to a method for producing a catalyst-precursor containing vanadium, phosphorous and oxygen for the production of maleic acid anhydride by means of heterogeneous catalytic gas phase oxidation of a hydrocarbon having at least four hydrocarbon atoms, wherein (a) vanadium pentoxide is reacted with 102 - 110 % phosphorous acid in a temperature range of between 80 - 160 °C in the presence of a primary or secondary, non-cyclic or cyclic, non-branched or branched, saturated alcohol having 3 - 6 carbon atoms; (b) the formed deposit is isolated; (c) a content of organic carbon of = 1.1 wt. % is adjusted in the insulated deposit by tempering in a temperature range of between 250 - 350 °C, whereby the tempered product produces a powder-x ray diffraction diagram after the addition of 3.0 wt. % graphite, said diagram having a peak height ratio of the peak in the 2?-range of = 0,1 of a possibly existing pyrophosphate phase at 28.5° to the peak at 26.6° emerging from the graphite and, d) the tempered product obtained from step c) is formed to obtain particles having an average diameter of at least 2mm. The invention also relates to a catalyst-precursor obtained according to said method for producing a catalyst from the catalyst-precursor, a catalyst which can be obtained according to said method, in addition to a method for producing maleic acid anhydride on said catalyst.

公开(公告)号：EP1708978B1

公开(公告)日：2010-05-05

申请号：EP04804421.8

申请日：2004-12-30

Applicant: BASF SE

Inventor： JOHANN, Thorsten ,  SCHINDLER, Götz-Peter ,  BRODHAGEN, Andreas ,  CRONE, Sven ,  BENFER, Regina ,  HILL, Thomas ,  DUDA, Mark

IPC: C07C5/333 ,  C07C11/167

CPC classification number: C07C5/333 ,  C07C5/48 ,  C07C11/167

Abstract: The invention relates to a method for producing butadiene from n-butane, comprising the steps of A) providing an input gas flow a containing n-butane; B) feeding said input gas flow a containing n-butane into at least one first dehydrogenation zone and dehydrogenating n-butane in a non-oxidative catalytic manner, whereby a product gas flow b containing n-butane, 1-butene, 2-butene, butadiene, hydrogen, low-boiling secondary components, and optional steam is obtained; C) feeding the product gas flow b resulting from the non-oxidative catalytic dehydrogenation process and an oxygen-containing gas into at least one second dehydrogenation zone and oxidatively dehydrogenating 1-butene and 2-butene, whereby a product gas flow c containing n-butane, 2-butene, butadiene, hydrogen, low-boiling secondary components, and steam is obtained, said second product gas flow c having a higher butadiene content than product gas flow b; D) eliminating hydrogen, the low-boiling secondary components, and steam, whereby a C4 product gas flow d essentially comprising n-butane, 2-butene, and butadiene is obtained; E) separating the C4 product gas flow d into a recirculation flow e1 essentially comprising n-butane and 2-butene and a flow e2 substantially comprising butadiene by means of extractive distillation, and redirecting flow e1 into the first dehydrogenation zone.

公开(公告)号：EP1812365B1

公开(公告)日：2008-05-21

申请号：EP05806496.5

申请日：2005-11-11

Applicant: BASF SE

Inventor： CRONE, Sven ,  KLANNER, Catharina ,  SCHINDLER, Götz-Peter ,  DUDA, Mark ,  BORGMEIER, Frieder

IPC: C07C5/333 ,  C07C11/167

CPC classification number: C07C7/09 ,  C07C5/333 ,  C07C11/167

Abstract: The invention relates to a method for producing butadiene from n-butane, said method comprising the following steps: A) a feed gas flow (a) containing n-butane is prepared; B) the feed gas flow (a) containing n-butane is fed into at least one first dehydrogenating region and the n-butane is subjected to non-oxidative catalytic dehydrogenation, in order to obtain a gas flow (b) containing n-butane, 1-butene, 2-butene, butadiene, hydrogen, optionally carbon dioxide, and optionally water vapour; C) the gas flow (b) and a gas having an oxygen content of at least 75 vol. % are fed into at least one second dehydrogenating region and the 1-butene and 2-butene are subjected to oxidative dehydrogenation, in order to obtain a gas flow (c) containing n-butane, butadiene, hydrogen, and water vapour; D) the gas flow (c) is compressed in at least one first compression step and cooled, in order to obtain at least one condensate flow (d1) containing water and a gas flow (d2) containing n-butane, butadiene, hydrogen, carbon dioxide, and water vapour; E) the gas flow (d2) is compressed in at least one other compression step and cooled, in order to obtain at least one condensate flow (e1) containing n-butane, butadiene and water and a gas flow (e2) containing n-butane, butadiene, hydrogen and carbon dioxide; F) the gas flow (e2) is cooled, in order to obtain a condensate flow (f1) containing n-butane and butadiene and an exhaust gas flow (f2) containing carbon dioxide and hydrogen; G) water is separated from the at least one condensate flow (e1) and optionally the condensate flow (f1) during phase separation, in order to obtain at least one C4-hydrocarbon flow (g1) containing n-butane and butadiene and at least one waste water flow (g2); H) the C4-hydrocarbon flow (g1) is fractionated into a return flow (h1) containing n-butane and a product flow (h2) essentially consisting of butadiene, and the flow (h1) is redirected into the first dehydrogenating region.