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公开(公告)号：DE102006054214A1
公开(公告)日：2008-05-21
申请号：DE102006054214
申请日：2006-11-15
Applicant: BASF AG
Inventor： PETZOLDT JOCHEN , DIETERLE MARTIN , MUELLER-ENGEL KLAUS JOACHIM
Abstract: Conducting an exothermic heterogeneously catalyzed partial gas phase oxidation of an organic starting compound to an organic target compound in two different operating conditions I and II, comprises oxidizing a reaction gas starting mixture containing the organic starting compound, molecular oxygen and at least an inert dilution gas, through a solid bed catalyst present in the tube of a tube bundle reactor to produce a product mixture containing the organic target compound. Conducting an exothermic heterogeneously catalyzed partial gas phase oxidation of an organic starting compound to an organic target compound in two different operating conditions I and II, comprises oxidizing a reaction gas starting mixture containing the organic starting compound, molecular oxygen and at least an inert dilution gas, through a solid bed catalyst present in the tube of a tube bundle reactor to produce a product mixture containing the organic target compound; where: the tubes are surrounded by spaces for adjusting the reaction temperature; at least a fluid thermal carrier is passed in with an inlet temperature (Ti) and passed out with an outlet temperature (To) through the tubes; the outlet temperature is greater than the inlet temperature; the solid bed catalyst is charged with a load (L1) having the organic starting compound in an operating condition I at an inlet temperature (Ti1) and is charged with a load (L2) having the organic starting compound in the operating condition II at an inlet temperature (Ti2); the load (L2) is greater than the load (L1) and the inlet temperature (Ti2) is greater than (Ti1); the inlet temperature (Ti1) is elevated to the inlet temperature (Ti2) during the change of operating condition I to the operating condition II and subsequently the loading of the solid bed catalyst with the organic starting compound increases the (L1) value to the (L2) value.
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公开(公告)号：DE102007019597A1
公开(公告)日：2008-05-15
申请号：DE102007019597
申请日：2007-04-24
Applicant: BASF AG
Inventor： HAMMON ULRICH , FRIESE THORSTEN , PETZOLDT JOCHEN , MUELLER-ENGEL KLAUS JOACHIM , CREMER ULRICH , RAICHLE ANDREAS
IPC: C07C57/055
Abstract: Process for implementing a heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid or methacrolein to methacrylic acid in a solid catalyst bed comprises using a tube bundle reactor in reaction tube of a vertically arranged bundle of reaction tubes (9), which are closed by a reactor jacket; where: the both ends of the individual reaction tubes are open and each reaction tubes terminate with its upper end in a passage of a top tube plate sealed above in reactor jacket and with its lower end in a passage of a down tube plate (5) sealed below in reactor jacket. Process for implementing a heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid or methacrolein to methacrylic acid in a solid catalyst bed comprises using a tube bundle reactor in reaction tube of a vertically arranged bundle of reaction tubes (9), which are closed by a reactor jacket; where: the both ends of the individual reaction tubes are open and each reaction tubes terminate with its upper end in a passage of a top tube plate sealed above in reactor jacket and with its lower end in a passage of a down tube plate (5) sealed below in reactor jacket; the exterior of the reaction tubes, the top and the down tube plate, and the reactor jacket differentiate conjointly to the reaction tube surrounding chamber, and each of the two tube plates is spanned by at least a reactor cover (6) having an opening, with which, in order to set start-up in several respects, to the reaction tubes of the tube bundle reactor, at least an opening (3) in one of the both reactor covers supplies a reaction gas inlet mixture (1) containing >= 3 vol.% of acrolein or methacrolein and additionally molecular oxygen; at least an opening of the other reactor cover discharges by partial gas phase oxidation of the acrolein to acrylic acid or methacrolein to methacrylic acid, where the passage of the product gas mixture (2) containing acrylic acid or methacrylic acid results in the solid catalyst bed, which is present in the reaction tubes; at least a liquid heat exchange medium is supplied on the jacket side of the tube bundle reactor around the reaction tubes in such a manner that each of the two surfaces, which turned to each other, of the two tube plates is moistened by liquid heat exchange medium; the liquid heat exchange medium is inwardly introduced with a temperature T w(in) into the reaction tubes surrounding chamber and is outwardly emitted with the temperature T w(out) from the reaction tubes surrounding chamber; the temperature T w(in) of the liquid heat exchange medium, which moistens the tube plate spanned by the tube cover having the at least one opening, is at least 290[deg] C; the reaction gas inflow mixture entering into the opening has a temperature of = 285[deg] C, and the temperature of the surface of the reactor plate (4) turned to the reactor cover having at least an opening, has a value of = 285[deg] C.
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公开(公告)号：DE50113515D1
公开(公告)日：2008-03-06
申请号：DE50113515
申请日：2001-09-20
Applicant: BASF AG
Inventor： ARNOLD HEIKO , UNVERRICHT SIGNE , FELDER RAIMUND , HARTH KLAUS , MUELLER-ENGEL KLAUS JOACHIM
IPC: C07C45/00 , B01J6/00 , B01J19/18 , B01J19/22 , B01J23/88 , B01J23/888 , B01J35/00 , B01J37/08 , C07B61/00 , C07C27/14 , C07C45/33 , C07C45/34 , C07C45/35 , C07C45/38 , C07C47/22 , C07C51/215 , C07C51/25 , C07C57/05 , F27B9/24
Abstract: Production of a catalyst for gas phase oxidation of organic compounds to alpha ,beta -unsaturated aldehydes and/or carboxylic acids, comprises an active phase of multimetal oxide composition being produced from a particulate precursor containing oxides and/or precursors and activated by calcination. Production of a catalyst for gas phase oxidation of organic compounds to alpha ,beta -unsaturated aldehydes and/or carboxylic acids, comprises an active phase of multimetal oxide composition being produced from a particulate precursor containing oxides and/or precursors and activated by calcination. A stream of precursor is fed at constant rate through calcination zone(s), in which the maximum temperature varies with time and locally are at most 5[deg]C. Independent claims are also included for: (a) a catalyst charge containing a specified active phase; (b) the production of alpha ,beta - unsaturated aldehydes and/or carboxylic acids over this catalyst charge; and (c) a belt calciner with heatable chamber(s) and gas-permeable conveyor belt for particulate material, running through the chamber(s), in which the chamber is provided with means of gas circulation by forced convection.
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公开(公告)号：DE102006024901A1
公开(公告)日：2007-11-29
申请号：DE102006024901
申请日：2006-05-24
Applicant: BASF AG
Inventor： MACHHAMMER OTTO , MUELLER-ENGEL KLAUS JOACHIM , DIETERLE MARTIN
IPC: C07C45/28
Abstract: Preparing acrolein and/or acrylic acid from propane comprises supplying two gaseous, propane-containing current to a first reaction zone A, under the formation of a reaction gas A; introducing the reaction gas A to a reaction zone A, supplying molecular oxygen and removing the product gas containing propylene, propane and water vapor; separating water vapor from the product gas A; feeding oxidation reactor with a reaction gas B containing propane, propylene and molecular oxygen and subjecting propylene to heterogeneously catalyzed, partial gas-phase oxidation. Preparation of acrolein and/or acrylic acid from propane comprises: (a) supplying at least two gaseous, propane-containing current (where one contains at least a fresh propane) to a first reaction zone A, under the formation of a reaction gas A; introducing the reaction gas A in the reaction zone A, formed through at least a catalyst bed by means of partial heterogeneous catalytic dehydrogenation of propane, molecular hydrogen and propylene, supplying molecular oxygen to the reaction zone A, where the molecular oxygen oxidizes a partial quantity of molecular hydrogen contained in the reaction gas A to form water vapor in the reaction zone A, and removing the product gas containing propylene, propane and water vapor, from the reaction zone A; (b) partially or completely separating, optionally in a first separation zone I, the water vapor contained in the product gas A by means of condensation incorporating indirect and/or direct cooling of the product gas A, while leaving behind a product gas Aa; (c) using the product gas A or Aa along with the supply of molecular oxygen, in a reaction zone B, for feeding at least an oxidation reactor with a reaction gas B containing propane, propylene and molecular oxygen, and subjecting the propylene contained in the reactor to heterogeneously catalyzed, partial gas-phase oxidation to form acrolein and/or acrylic acid as end product, and product gas B containing non-converted propane; (d) discharging the product gas B from the reaction zone B and separating the end product in a second separation zone II, while leaving behind a residual gas containing propane; (e) optionally reintroducing the partial quantity of the residual gas exhibiting the same composition of the residual gas as a propane-containing feed stream into the reaction zone A; (f) partially or completely separating the water vapor and/or the molecular hydrogen, in a separation zone III, which are possibly contained previously in the residual gas that is not fedback into the reaction zone A, by means of condensation and membrane separation processes respectively, and taking up the contained propane from the residual gas by absorption in an organic solvent under the formation of an absorbed substance that contains propane; and (g) separating the propane, in a separation zone IV, from the absorbed substance and reintroducing as propane-containing feed stream into the reaction zone A, where in the reaction zone A, at least lot of molecular hydrogen is oxidized to form water vapor, so that the hydrogen quantity that is oxidized in the reaction zone A to form water vapor amounts to at least 20 mol.% of the quantity of molecular hydrogen that is formed in the reaction zone A.
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公开(公告)号：DE102005051401A1
公开(公告)日：2007-04-26
申请号：DE102005051401
申请日：2005-10-25
Applicant: BASF AG
Inventor： KLANNER CATHARINA , DIETERLE MARTIN , SCHINDLER GOETZ-PETER , CHENG TSUNG-CHIEH , MUELLER-ENGEL KLAUS JOACHIM
Abstract: Preparation of acrolein/acrylic acid from propane comprises supplying reaction gas mixture input stream A to a reaction zone A; supplying dehydrogenated propane gas stream to obtain a product gas mixture; removing the product mixture stream A; dividing the product gas mixture stream A into component streams (I) and (II); feeding the component stream (II) in a second reaction zone B into an oxidative reactor, in which propylene in stream (II) is oxidized to form a product gas mixture B containing e.g. acrolein/acrylic acid as final product and separating the final product. Preparation of acrolein and/or acrylic acid from propane comprises supplying a reaction gas mixture input stream A (which is produced by merging at least four different gaseous initial streams 1, 2, 3 and 4) to the inlet of the first reaction zone A by at least a catalyst bed; optionally further supplying partially, heterogeneously catalyzed dehydrogenated propane gas stream to the mixture to obtain a product gas mixture containing propane and propylene; removing the obtained product gas mixture stream A from the first reaction zone A by discharge opening; dividing the product gas mixture stream A into two component streams (I) and (II) with identical composition, where the component stream (I) is fed back as gaseous initial stream 1 into the first reaction zone A in a first gas cycle operation and the component stream (II) is optionally led into the first separation zone A, to separate partial or large quantity of different propane and propylene components and to produce a residual product gas mixture stream A1 containing propane and propylene; feeding the component stream (II) or the product gas mixture in a second reaction zone B into at least an oxidative reactor, in which the propylene contained in the component stream (II) or in the product gas mixture stream A1 is subjected to selective heterogeneously catalyzed partial gaseous phase oxidation with molecular oxygen to form a product gas mixture B containing acrolein and/or acrylic acid as final product, optionally unconverted propane and propylene, and surplus molecular oxygen; removing the product gas mixture stream B from the reaction zone B; separating the final product, where the residual gas containing unconverted propane and propylene, and molecular oxygen is fed back as gaseous initial stream 2 in a second gas cycle operation into the reaction zone A (when the gaseous initial streams 2, 3 and 4 and optionally a gaseous stream different from the 1 are merged to a single propelled jet gaseous mixture stream); and subsequently operating the mixture with gaseous propelled jet mixture stream as propelled jet of a jet pump, which comprises a jet nozzle, a mixing path, a diffuser and a suction intake socket; where the direction of the propulsion of the propelled jet by the jet nozzle over a mixing path and the diffuser, points towards the inlet of the first reaction zone A and the suction effect of the suction intake socket, points towards the direction of the discharge opening of the first reaction zone A leading to the product gas mixture stream A and the component stream (I) is sucked through the negative pressure produced in the suction intake socket along with the splitting up of the product gas mixture A into the two component stream, and is transported with simultaneous mixing of propelled jet by the mixing path over the diffuser and the obtained reaction gas mixture input stream A is left into the inlet of the first reaction zone A; the gaseous initial streams 1, 2 and 3 is a propane, the gaseous initial stream 4 is a molecular hydrogen and the gaseous initial stream 3 is a fresh propane; the first gaseous initial stream 2 and 3 and optionally stream 1 and stream 4 are combined in an arbitrary sequence to a single gaseous mixture stream and stream 4 is added to the gaseous initial mixture stream under the formation of the gaseous propelled jet mixture stream.
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Patent Agency Ranking
公开(公告)号：CA2617955A1
公开(公告)日：2007-02-22
申请号：CA2617955
申请日：2006-08-03
Applicant: BASF AG
Inventor： JAEGER ULRICH , HAMMON ULRICH , MUELLER-ENGEL KLAUS JOACHIM
IPC: C08F20/06
Abstract: A process for covering the demand for polymers I in a country I, in which the monomers of the polymer I are obtained in at least one country II, then these monomers are polymerized free-radically to polymer I in this country II, and polymer I thus obtained is subsequently exported to a country I.
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公开(公告)号：BRPI0416073A
公开(公告)日：2007-01-02
申请号：BRPI0416073
申请日：2004-10-15
Applicant: BASF AG
Inventor： DIETERLE MARTIN , PETZOLDT JOCHEN , MUELLER-ENGEL KLAUS JOACHIM
IPC: B01J23/00 , B01J23/887 , B01J23/888 , B01J23/94 , B01J35/00 , B01J38/12 , B01J38/14 , C07C45/35 , C07C47/22
Abstract: The invention relates to the long term operation of a heterogeneously catalysed gas phase partial oxidation of propene in order to form acrolein. The temperature of the solid bed catalyst increases over time, gas phase partial oxidation is interrupted at least once per calendar year, and a gas mixture (G) is guided through the solid bed catalyst having a temperature of between 250 - 550 DEG C, said gas mixture consisting of molecular oxygen, inert gas and, optionally, steam.
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公开(公告)号：DE102005018702A1
公开(公告)日：2006-10-26
申请号：DE102005018702
申请日：2005-04-21
Applicant: BASF AG
Inventor： HEILEK JOERG , MUELLER-ENGEL KLAUS JOACHIM , HAMMON ULRICH , WALTER THOMAS
Abstract: Process for controlling a hydraulic wash column having a cylindrical shell (1) which delimits the column and within which filter tubes (2) in the vicinity of the second end of column and at least one filter (3) in the filter tube wall, comprises: feeding of mother liquor (7) into first end of column; conducting mother liquor into filter tube; feeding control liquor (9) into wash column (12); purifying the mother liquor and control liquor flow; transporting the crystal bed (10); continuous removing; melting; passing the melt through the crystal bed; and determining flow rates. Process for controlling a hydraulic wash column comprises: continuous feeding of a stream of a suspension comprises a substance to be purified suspended in a mother liquor (7) into the first end of the column with a pressure P2, which is greater than P1; conducting the mother liquor through the filters into the filter tube interior and out of the column through the filter tubes; feeding the control liquor (9) into the wash column (12) at the first end of the column and/or between this end and the start of the filter; purifying the mother liquor and control liquor flow in the column from the crystal bed of the substance, where the crystal bed (10) is having a buildup front faces the first end of the column and at which the crystals are added continuously to the crystal bed; transporting the crystal bed by the force resulting from the hydraulic flow pressure drop of the mother liquor and the control liquor flow in the column, where the filters into the wash zone disposed between the filters and the second end of the wash column; continuous removing of the crystals at the opposite end of the crystal bed to the buildup front; melting the removed crystals; passing the melt through the crystal bed as a wash liquid stream coming from the second end of the column against the transport direction of the crystals; and determining the flow rates of the control liquor and/or suspension conducted into the wash column by utilizing at least one pressure difference delta P s k, which exists in the column between at least one point in the zone projecting from the buildup front up to the end of the crystal bed (preferably in the concentration zone, projecting up to the start of the wash zone, of the crystal bed), where the hydraulic wash column has a cylindrical shell (1), which delimits and within which one or more filter tubes (2) extend through the column parallel to the cylinder axis and have, in the vicinity of the second end of the column, at least one filter (3) in the filter tube wall, which forms the sole direct connection between the filter tube interior under the pressure P1 and the interior of the column.
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公开(公告)号：DE102005017050A1
公开(公告)日：2006-10-19
申请号：DE102005017050
申请日：2005-04-12
Applicant: BASF AG
Inventor： DIETERLE MARTIN , MUELLER-ENGEL KLAUS JOACHIM , PETZOLDT JOCHEN , HAMMON ULRICH
Abstract: Preparing at least one organic target compound (I) by heterogeneously catalyzed gas phase partial oxidation of at least one organic precursor compound with molecular oxygen in at least two oxidation reactor systems comprising catalyst charges and are operated in parallel to obtain at least two product gas streams (II) each comprising (I) and each stemming from one of the at least two oxidation reactor systems and subsequent removal of (I) from (II) to obtain at least one crude target product stream, where the process comprises before, during and/or after the removal, mixing together (II). Preparing at least one organic target compound (I) by heterogeneously catalyzed gas phase partial oxidation of at least one organic precursor compound with molecular oxygen in at least two oxidation reactor systems comprising catalyst charges and are operated in parallel to obtain at least two product gas streams (II) each comprising (I) and each stemming from one of the at least two oxidation reactor systems and subsequent removal of (I) from (II) to obtain at least one crude target product stream, where the process comprises before the removal, mixing together (II); or in the course of the removal, mixing together at least two of any target product-comprising subsequent streams obtained on the route from (II) to the at least one crude target product stream; and/or after the removal from (II), mixing together any crude target product streams obtained in the course of the removal, to form a mixture stream, where at least one of the catalyst charges of the at least two oxidation reactor systems operated in parallel, over which the target compounds comprised in the mixture stream were formed, comprises at least one portion of catalyst over which the heterogeneously catalyzed gas phase partial oxidation has already been carried out longer than over all portions of catalyst of the at least one other catalyst charge. An independent claim is included for an apparatus comprising two oxidation reactor systems which are charged with catalysts that are suitable for the preparation of (I) by heterogeneously catalyzed partial oxidation of an organic precursor compound and at whose outlet is disposed in each case a line for the removal of the product gas stream comprising (I) from the particular oxidation reactor system, which lines are combined with increasing distance from the two oxidation reactor systems to give a product gas line which leads to an apparatus in which the product gas stream can be condensed partly or fully, where the catalyst charge of one of the two oxidation reactor systems comprises at least one portion of catalyst over which more target product has already been generated than over the portions of catalyst of the catalyst charge of the other oxidation reactor system.
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公开(公告)号：BRPI0413297A
公开(公告)日：2006-10-10
申请号：BRPI0413297
申请日：2004-07-17
Applicant: BASF AG
Inventor： SCHLIEPHAKE VOLKER , HAMMON ULRICH , BECHER ROLF-DIETER , MUELLER-ENGEL KLAUS JOACHIM
Abstract: Process for operating a continuous heterogeneously catalyzed gas phase partial oxidation of at least one organic compound using compressed air as the oxygen source which is filtered before its compression.
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