METHODS FOR MANUFACTURING OLEFINS FROM LOWER ALKANES BY OXIDATIVE DEHYDROGENATION
    2.
    发明申请
    METHODS FOR MANUFACTURING OLEFINS FROM LOWER ALKANES BY OXIDATIVE DEHYDROGENATION 审中-公开
    通过氧化脱氢制造低碱性烯烃的方法

    公开(公告)号:WO02024614A1

    公开(公告)日:2002-03-28

    申请号:PCT/US2001/028760

    申请日:2001-09-14

    Abstract: The present invention provides methods for manufacturing olefins such as ethylene and propylene from lower alkanes, that is, methane, ethane and/or propane, by oxidative dehydrogenation at elevated pressure. The olefins are selectively recovered from unconverted lower alkane feed and reaction byproducts by using a complexation separation, such as an absorption separation that uses aqueous silver nitrate as the complexation agent. Catalysts are used that give high selectivity for oxidative dehydrogenation of lower alkanes to olefins at elevated pressure, such as a nonstoichiometric rare earth oxycarbonate catalyst.

    Abstract translation: 本发明提供了在升高的压力下通过氧化脱氢从低级烷烃(即甲烷,乙烷和/或丙烷)制备烯烃如乙烯和丙烯的方法。 通过使用络合分离,例如使用硝酸银水溶液作为络合剂的吸收分离,从未转化的低级烷烃进料和反应副产物中选择性地回收烯烃。 使用催化剂,其在高压下对低级烷烃对烯烃的氧化脱氢提供高选择性,例如非化学计量的稀土氧化碳酸酯催化剂。

    METHOD FOR SYNTHESISING TERMINAL OLEFINS HAVING A LIMITED MOLAR MASS DISTRIBUTION
    3.
    发明申请
    METHOD FOR SYNTHESISING TERMINAL OLEFINS HAVING A LIMITED MOLAR MASS DISTRIBUTION 审中-公开
    用低模量重量分布合成端烯烃的方法

    公开(公告)号:WO02016290A2

    公开(公告)日:2002-02-28

    申请号:PCT/EP2001/009756

    申请日:2001-08-23

    Abstract: The invention relates to a method for producing linear alpha olefins by means of an isomerising metathetical reaction and ensuing ethenolysis. The method comprises the following steps: i) a C4-C10 olefin fraction is introduced into an isomerising metathesis reaction; ii) the mixture obtained is separated into a) a C2-C3-olefin fraction, b) a fraction containing olefins having the desired carbon count, c) a light fraction containing olefins having a carbon count of C4 or above, but below the carbon count of the desired fraction b) and, d) a heavy fraction containing olefins having a carbon count which is above the carbon count of the desired fraction b); iii) the light fraction c) and optionally the heavy fraction d) are redirected into the isomerising metathesis reaction i); iv) the fraction b) and optionally the fraction d) are introduced into an ethenolysis reaction; and v) the alpha olefin fraction produced in iv) is isolated. Linear C8-C12 alpha olefins can be especially produced using said method.

    Abstract translation: 本发明涉及通过异构化复分解反应和随后的乙烯醇分解制备直链α-烯烃的方法。 该方法包括以下步骤:1)在异构化的复分解反应来引入C4-C10-Olefinenfraktion,ⅱ)分离)的C2-C3烯烃在获得的混合物,b)含有与所需的碳原子数的烯烃的级分,C )包含含有C4的碳原子数为低于期望的级分b的碳原子数)和d)的重馏分,具有所希望的级分b的Kohlensotffzahl以上的碳原子数的烯烃的烯烃的轻馏分)含有iii)所述的轻馏分回收 C),并在异构化复分解反应我任选的重质馏分d))的级分b的,静脉内)插入)中并在乙烯醇分解任选的组分d),v)分离在IV产生的α-烯烃馏分)。 特别是可以用这种方法得到直链C8-C12的α-烯烃代表。

    炭化水素の製造方法
    4.
    发明申请
    炭化水素の製造方法 审中-公开
    生产碳氢化合物的方法

    公开(公告)号:WO2013108833A1

    公开(公告)日:2013-07-25

    申请号:PCT/JP2013/050789

    申请日:2013-01-17

    Abstract: 【課題】常温常圧の条件でも、炭化水素の収量が大きい炭化水素の製造方法を提供することを目的とする。 【解決手段】二酸化炭素を還元して炭化水素を生成する炭化水素の製造方法であって、マグネシウム又は酸化マグネシウム等のマグネシウム化合物と水と二酸化炭素とを接触させて、二酸化炭素を還元して炭化水素を生成する生成工程を有する。マグネシウム化合物は、酸化マグネシウム、水酸化マグネシウム、炭酸マグネシウム又は塩基性炭酸マグネシウムが例示できる。

    Abstract translation: 本发明的目的在于提供即使在大气温度和压力条件下也能得到高烃产率的烃的制造方法。 [方案]通过还原二氧化碳生产烃的该烃生产方法包括通过使水,二氧化碳和镁或镁化合物如氧化镁接触来还原二氧化碳来生产烃的生产步骤。 所述镁化合物的实例可包括氧化镁,氢氧化镁,碳酸镁和碱式碳酸镁。

    CATALYSTS FOR THE OXIDATIVE DEHYDROGENATION OF HYDROCARBONS
    7.
    发明申请
    CATALYSTS FOR THE OXIDATIVE DEHYDROGENATION OF HYDROCARBONS 审中-公开
    氢氧化物脱氢催化剂

    公开(公告)号:WO02022258A2

    公开(公告)日:2002-03-21

    申请号:PCT/US2001/028924

    申请日:2001-09-13

    Abstract: The present invention provides a catalyst for the oxidative dehydrogenation of a lower hydrocarbon to form at least one higher hydrocarbon and/or lower olefin. In one embodiment, the catalyst includes a nonstoichiometric rare earth oxycarbonate of the formula MxCyOz having a disordered and/or defect structure, wherein M is at elast one rare earth element selected from the group consisting of La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, and Tm; X = 2; Z = 3 + AY; A is less than about 1.8, and Y is the number of carbom atoms in the oxycarbonate. When used for the oxidative dehydrogenation of a lower hydrocarbon at a pressure above bout 100 psig. the catalyst has a selectivity of at least about 40 percent to at least one higher hydrocarbon and/or lower olefin. Methods for preparing catalysts taught by the invention and processes for using the catalysts for the oxidative dehydrogenation of lower hydrocarbons are also provided.

    Abstract translation: 本发明提供了用于低级烃的氧化脱氢以形成至少一种较高级烃和/或低级烯烃的催化剂。 在一个实施方案中,催化剂包括具有无序和/或缺陷结构的式MxCyOz的非化学计量稀土氧碳酸盐,其中M为选自La,Pr,Nd,Sm,Eu的弹性一种稀土元素, Gd,Tb,Dy,Ho,Er和Tm; X = 2; Z = 3 + AY; A小于约1.8,Y是碳酸酯中的碳原子数。 当在高于100psig的压力下用于低级烃的氧化脱氢。 催化剂对至少一种较高级烃和/或低级烯烃具有至少约40%的选择性。 还提供了用于制备本发明教导的催化剂的方法和使用该催化剂用于低级烃的氧化脱氢的方法。

    CATALYST AND PROCESS FOR DIMERIZATION OF PROPYLENE INTO METHYL-4-PENTENE-1
    9.
    发明申请
    CATALYST AND PROCESS FOR DIMERIZATION OF PROPYLENE INTO METHYL-4-PENTENE-1 审中-公开
    将丙烯分成甲基-4-丁烯-1的催化剂和方法

    公开(公告)号:WO1988008834A1

    公开(公告)日:1988-11-17

    申请号:PCT/FR1988000234

    申请日:1988-05-11

    Inventor: NORSOLOR

    Abstract: The catalyst for the dimerization of propylene into methyl-4-pentene-1 comprises potassium (K) and potassium carbonate (K2CO3) and is characterized in that it further contains at least one metal (M) selected amongst manganese, chromium, cadmium, nickel, palladium and titanium. It may also include copper. The method for preparing the catalyst comprises the following steps carried out in the presence of an inert liquid having a high boiling point. In a first step, a suspension of potassium carbonate is obtained in the inert liquid. In a second step, the metal or metals (M), and optionally copper, are introduced in powder form into the highly stirred reaction medium. In a third step, after bringing the reaction medium to a temperature higher than the potassium melting temperature, potassium is introduced under high stirring conditions. In the fourth step, the reaction medium is brought to a temperature comprised between 140 and 180°C during a length of time comprised between 1 and 3 hours, and the reaction medium is then allowed to cool down to room temperature. The process for dimerization of propylene into methyl-4-pentene-1 uses the catalyst disclosed hereabove.

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