Process for manufacturing a tertiary alkyl ether by reactive distillation
    3.
    发明授权
    Process for manufacturing a tertiary alkyl ether by reactive distillation 失效
    通过反应蒸馏制备叔烷基醚的方法

    公开(公告)号:US4847430A

    公开(公告)日:1989-07-11

    申请号:US171339

    申请日:1988-03-21

    摘要: The invention concerns a process for manufacturing methyl tert-butyl ether (MTBE) by reacting methanol with an isobutene-containing hydrocarbon mixture.This process is characterized by the steps of:introducing the reactants into a reaction-distillation zone containing at least two superposed and non-contiguous fixed beds (2a, 2b) of catalyst of the sulfonated resin type, wherein passage-ways are provided for a vapor phase, at least one distillation tray (4a), at least one liquid redistribution tray (5),maintaining distillation conditions in said zone so as to have a descending liquid phase and an ascending vapor phase,maintaining a continuous liquid phase in the lower part of said beds,discharging a vapor phase containing a high proportion of unconverted hydrocarbons from the top (8) of said zone, andwithdrawing a liquid phase of high MTBE content from the bottom (10) of said zone.

    摘要翻译: 本发明涉及通过使甲醇与含异丁烯的烃混合物反应制备甲基叔丁基醚(MTBE)的方法。 该方法的特征在于以下步骤:将反应物引入含有至少两个磺化树脂类型的催化剂的重叠和不连续的固定床(2a,2b)的反应 - 蒸馏区,其中为 蒸气相,至少一个蒸馏塔板(4a),至少一个液体再分配托盘(5),保持所述区域中的蒸馏条件以具有下降的液相和上升的气相,将下一个液相保持在下部 所述床的一部分,从所述区域的顶部(8)排出含有高比例未转化烃的气相,并从所述区域的底部(10)排出高MTBE含量的液相。

    Process for producing a hydrocarbon cut of high octane number by
etherification of olefins
    5.
    发明授权
    Process for producing a hydrocarbon cut of high octane number by etherification of olefins 失效
    通过烯烃醚化生产高辛烷值的烃馏分的方法

    公开(公告)号:US4647703A

    公开(公告)日:1987-03-03

    申请号:US753465

    申请日:1985-07-10

    IPC分类号: C10G3/00 C10L1/02

    CPC分类号: C10L1/023 Y02P30/20

    摘要: Process for producing a hydrocarbon cut of high octane number by etherification of an olefin-containing hydrocarbon cut.The olefinic cut, to which methanol is added, passes into an etherification reactor (1) wherefrom are separated (3) a bottom product (15) containing ethers, and a top product (14) containing residual methanol and unreacted light olefins. This top product passes into an etherification reactor (2) and then is washed with water (8).The top product is finally admixed with the bottom product.The so-obtained motor-fuel has a higher octane number than that of the initial hydrocarbon cut.

    摘要翻译: 通过含烯烃的烃馏分的醚化生产高辛烷值的烃馏分的方法。 向其中加入甲醇的烯属馏分进入醚化反应器(1),从其中分离出(3)含有醚的底部产物(15)和含有残余甲醇和未反应的轻质烯烃的顶部产物(14)。 该顶部产物进入醚化反应器(2),然后用水(8)洗涤。 最终的产品最终与底部产品混合。 所得到的电动机燃料具有比初始碳氢化合物馏分高的辛烷值。

    Process for producing ethers by reacting olefins with alcohols
    6.
    发明授权
    Process for producing ethers by reacting olefins with alcohols 失效
    通过烯烃与醇反应制备醚的方法

    公开(公告)号:US4366327A

    公开(公告)日:1982-12-28

    申请号:US258317

    申请日:1981-04-28

    CPC分类号: C07C41/06

    摘要: Process for producing ethers by reacting a catalytic cracking C.sub.4 olefinic cut which may contain such impurities as NaOH, an alkanolamine, an alkaline earth metal compound or an iron, copper or lead compound, with an alcohol, in the liquid phase, in the presence of an expanded bed of an etherification solid catalyst of the sulfonic resin type in acid form, in a circuit of two or more successive reaction zones wherethrough the order of passage of the reactants is periodically modified by disconnecting the first zone from the circuit, feeding the reactants to the second zone, replacing the catalyst of the first zone with fresh catalyst and thereafter connecting said first zone at the end of the circuit.

    摘要翻译: 通过在液相中存在下使可能含有诸如NaOH,链烷醇胺,碱土金属化合物或铁,铜或铅化合物的杂质的催化裂解C4烯烃切割物与醇反应来制备醚的方法 在两个或更多个连续反应区的电路中,酸性磺酸树脂的醚化固体催化剂的膨胀床通过使第一区与电路断开而周期性地改变反应物的通过顺序,将反应物 到第二区域,用新鲜催化剂代替第一区域的催化剂,然后在回路的末端连接所述第一区域。

    Apparatus for reactive distillation
    7.
    发明授权
    Apparatus for reactive distillation 失效
    反应蒸馏装置

    公开(公告)号:US5026459A

    公开(公告)日:1991-06-25

    申请号:US356087

    申请日:1989-05-24

    IPC分类号: B01D3/00 C07C41/06 C07C41/42

    摘要: The invention concerns a process and apparatus for manufacturing methyl tert-butyl ether (MTBE) by reacting methanol with an isobutene-containing hydrocarbon mixture.This process is characterized by the steps of:introducing the reactants into a reaction-distillation zone containing at least two superposed and non-contiguous fixed beds (2a, 2b) of catalyst of the sulfonated resin type, wherein passageways are provided for a vapor phase, at least one distillation tray (4a), at least one liquid redistribution tray (5),maintaining distillation conditions in the zone so as to have a descending liquid phase and an ascending vapor phase,maintaining a continuous liquid phase in the lower part of the beds,discharging a vapor phase containing a high proportion of unconverted hydrocarbons from the top (8) of the zone, andwithdrawing a liquid phase of high MTBE content from the bottom (10) of the zone.

    摘要翻译: 本发明涉及通过使甲醇与含异丁烯的烃混合物反应制备甲基叔丁基醚(MTBE)的方法和装置。 该方法的特征在于以下步骤:将反应物引入反应 - 蒸馏区,该反应蒸馏区包含磺化树脂型催化剂的至少两个重叠和不连续的固定床(2a,2b),其中为气相提供通道 ,至少一个蒸馏塔板(4a),至少一个液体再分布托盘(5),保持该区域中的蒸馏条件以具有下降的液相和上升的气相,在 床,从该区域的顶部(8)排出含有高比例的未转化的烃的气相,并从该区域的底部(10)排出高MTBE含量的液相。

    Process for upgrading olefinic gasolines by etherification
    8.
    发明授权
    Process for upgrading olefinic gasolines by etherification 失效
    通过醚化提纯烯烃汽油的方法

    公开(公告)号:US4664675A

    公开(公告)日:1987-05-12

    申请号:US745985

    申请日:1985-06-18

    CPC分类号: C10L1/023

    摘要: The invention concerns a process for upgrading olefinic gasolines containing C.sub.5 hydrocarbons, but free of C.sub.4 hydrocarbons, by etherification. It is characterized in that the tertiary olefins of the charge are reacted (1 and 2) with methanol; the reaction effluent being then extracted (3) with water, in order to separate an aqueous phase containing the major part of the unreacted methanol from a hydrocarbon phase containing the major part of the formed ethers. The aqueous phase is then introduced in a distillation zone (4) where water is separated from methanol and recycled to the extraction zone (3), whereas methanol is recycled to the etherification zone (1 and 2).

    摘要翻译: 本发明涉及一种通过醚化提纯含有C5烃但不含C4烃的烯烃汽油的方法。 其特征在于电荷的叔烯烃与甲醇反应(1和2); 然后将反应流出物用水萃取(3),以便将含有主要部分未反应的甲醇的水相与含有主要部分形成的醚的烃相分离。 然后将水相引入蒸馏区(4),其中将水从甲醇中分离并再循环至萃取区(3),而甲醇被再循环至醚化区(1和2)。