METHOD FOR PRODUCING A STREAM OF HYDROCARBONS CONTAINING FROM 5 TO 12 CARBON ATOMS PER MOLECULE AND HAVING AN INCREASED CONTENT IN LINEAR a-OLEFINS
    2.
    发明申请
    METHOD FOR PRODUCING A STREAM OF HYDROCARBONS CONTAINING FROM 5 TO 12 CARBON ATOMS PER MOLECULE AND HAVING AN INCREASED CONTENT IN LINEAR a-OLEFINS 审中-公开
    PROCEDURE用于获得烃含有5至12个碳原子每分子流与α-烯烃的线性份额增加

    公开(公告)号:WO2006103221A2

    公开(公告)日:2006-10-05

    申请号:PCT/EP2006061077

    申请日:2006-03-28

    Abstract: The invention relates to a method for producing a flow of aliphatic hydrocarbons which comprise from 5 to 12 carbon atoms per molecule and whose content in linear a- olefins is increased with respect to a feeding flow of aliphatic hydrocarbons comprising from 5 to 12 carbon atoms per molecule and containing linear a- olefins, internal linear olefins and dienes. The inventive method consists in bringing the feeding flow to a first distillation area D1 comprising at least 5 theoretical separation stages, wherein linear a-olefins are partially or totally separated in the form of a steam flux component which also contains dienes and on whose lower end a fluid flow partially or totally depleted of the linear a-olefins is obtainable, in introducing said fluid flow from the lower end of the first distillation area D1 into an isomerisation unit which is provided with an isomerisation catalyst in which the internal linear olefins are partially or totally isomerised into linear a- olefins and the thus formed linear a- olefins are separated in the form of the steam flux component mounting to the first distillation area D1 and entering a selective hydrogenation unit in which at least one part of dienes are selectively hydrogenated into olefins in a low-isomerisation selective hydrogenation catalyst and the thus obtainable steam flux is extracted, totally or partially condensed and removed in the form of a product flow whose content in linear a- olefins is increased with respect to the feeding stream.

    Abstract translation: 它是用于回收含有每分子中的碳原子数5〜12,与直链α-烯烃相对于每分子含有碳原子数5〜12的脂族烃的进料流的比例增加的α-表烃的流的方法,具有线性的α-含量 提出烯烃,直链内烯烃和二烯烃,其特征在于,该进料流进料至第一蒸馏区D1与头脑至少5个理论塔板供给,其中,所述线性α-烯烃被部分地或完全地作为蒸气流的组分,它除了还二烯分离 包括和液体流在下端,这是部分地或完全耗尽线性的α-烯烃,从D1被引入异构化单元中的第一蒸馏区的下端的液体物流,比与异构化催化剂的其它回收 是estattet在其上线性内烯烃,α-烯烃是部分地或完全线性异构化和形成在该过程中,直链α-烯烃被分离出作为由第一蒸馏区D1上升蒸气的流式传输Selektivhydriereinheit第一蒸馏区D1蒸气流中的一个升部件 发生时,其中至少二烯烃的一部分在isomerisierungsarmen选择性加氢催化剂以烯烃和在这种情况下被选择氢化,得到的蒸气流被排出,并在全部或部分冷凝,并且被抽出,作为具有直链α-烯烃相对于进料流的增加的比例的产物流。

    CONTINUOUS METHOD FOR SEPARATING A C4 CUT

    公开(公告)号:CA2493079C

    公开(公告)日:2012-03-20

    申请号:CA2493079

    申请日:2003-07-22

    Applicant: BASF AG

    Abstract: The invention relates to a continuous method for separating a C4 cut (C4) by means of extractive distillation using a selective solvent (LM) in an extractive distillation column (EDK). A separating wall (TW), forming a first partial region (A), a second partial region (B) and a lower common column region (C), is arranged in the longitudinal direction of the extractive distillation column (EDK). According to said method, a head flow (C4H10) comprising butane is separated from the first partial region (A), a head flow (C4H8) comprising butene is separated from the second partial region (B), and a flow (C4H6) comprising the hydrocarbons from the C4 cut is separated from the lower common column region (C), said hydrocarbons dissolving more easily in the selective solvent (LM) than the butane and the butene.

    Continuous method for separating a C4 cut

    公开(公告)号:AU2003250133B2

    公开(公告)日:2009-12-03

    申请号:AU2003250133

    申请日:2003-07-22

    Applicant: BASF AG

    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).

    6.
    发明专利
    未知

    公开(公告)号:DE50308078D1

    公开(公告)日:2007-10-11

    申请号:DE50308078

    申请日:2003-08-06

    Applicant: BASF AG

    Abstract: Pure isophorone-diamine (IPDA) with a cis/trans isomer ratio (CTR) of at least 73/27 is obtained by (a) making crude IPDA with a CTR below 73/27, (b) purifying and separating into fractions with CTR of at least 73/27 (b1) and below 63/37 (b2), (c) isomerizing (b2) in presence of hydrogen, ammonia and catalyst to give IPDA with a CTR of 63/37-66/34 which is recycled to stage (a). A method (M1) for the production of substantially pure 3-aminomethyl-3,5,5-trimethyl cyclohexylamine (isophorone-diamine; IPDA) with a cis/trans isomer ratio (CTR) of at least 73/27 involves: (a) preparation of crude IPDA with a CTR of less than 73/27, (b) purification and separation to give fractions (b1) with a CTR of at least 73/27 and (b2) with a CTR of less than 63/27 and (c) isomerization of (b2) in presence of hydrogen, ammonia and a hydrogenation catalyst to give IPDA with a CTR of 63/37-66/34 which is then recycled to stage (a). An Independent claim is also included for a method (M2) for the production of IPDA with a CTR in the range 63/37 to 66/34 by reacting IPDA with any CTR value with hydrogen and ammonia in presence of a hydrogenation catalyst.

    7.
    发明专利
    未知

    公开(公告)号:AT371638T

    公开(公告)日:2007-09-15

    申请号:AT03790870

    申请日:2003-08-06

    Applicant: BASF AG

    Abstract: Pure isophorone-diamine (IPDA) with a cis/trans isomer ratio (CTR) of at least 73/27 is obtained by (a) making crude IPDA with a CTR below 73/27, (b) purifying and separating into fractions with CTR of at least 73/27 (b1) and below 63/37 (b2), (c) isomerizing (b2) in presence of hydrogen, ammonia and catalyst to give IPDA with a CTR of 63/37-66/34 which is recycled to stage (a). A method (M1) for the production of substantially pure 3-aminomethyl-3,5,5-trimethyl cyclohexylamine (isophorone-diamine; IPDA) with a cis/trans isomer ratio (CTR) of at least 73/27 involves: (a) preparation of crude IPDA with a CTR of less than 73/27, (b) purification and separation to give fractions (b1) with a CTR of at least 73/27 and (b2) with a CTR of less than 63/27 and (c) isomerization of (b2) in presence of hydrogen, ammonia and a hydrogenation catalyst to give IPDA with a CTR of 63/37-66/34 which is then recycled to stage (a). An Independent claim is also included for a method (M2) for the production of IPDA with a CTR in the range 63/37 to 66/34 by reacting IPDA with any CTR value with hydrogen and ammonia in presence of a hydrogenation catalyst.

    METHOD FOR PRODUCING A STREAM OF HYDROCARBONS CONTAINING FROM 5 TO 12 CARBON ATOMS PER MOLECULE AND HAVING AN INCREASED CONTENT IN LINEAR A-OLEFINS

    公开(公告)号:CA2603155A1

    公开(公告)日:2006-10-05

    申请号:CA2603155

    申请日:2006-03-28

    Applicant: BASF AG

    Abstract: A process is proposed for obtaining a stream of aliphatic hydrocarbons comprising from 5 to 12 carbon atoms per molecule, with an increased proportion of linear alpha-olefins compared to a feed stream of aliphatic hydrocarbons comprising from 5 to 12 carbon atoms per molecule, with a content of linear alpha-olefins, linear internal olefins and dienes, wherein the feed stream is fed to a first distillation zone D 1 having at least 5 theoretical plates, in which the linear alpha-olefins are removed partly or fully as a component of a vapor stream which additionally also comprises the dienes, and at whose lower end a liquid stream is obtained which has been depleted partly or fully of linear alpha-olefins, the liquid stream from the lower end of the first distillation zone D 1 is introduced into a isomerization unit which is equipped with an isomerization catalyst over which the linear internal olefins are isomerized partly or fully to linear alpha-olefins, and the linear alpha-olefins formed in this way are removed as a component of a vapor stream ascending into the first distillation zone D 1, the vapor stream ascending out of the first distillation zone D 1 enters a selective hydrogenation unit in which at least a portion of the dienes are hydrogenated selectively to olefins over a low-isomerization selective hydrogenation catalyst to obtain a vapor stream which is drawn off, condensed fully or partly and drawn off as a product stream with an increased proportion of linear alpha-olefins compared to the feed stream.

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