Synthesis gas production by partial oxidation
    31.
    发明授权
    Synthesis gas production by partial oxidation 失效
    通过部分氧化合成气生产

    公开(公告)号:US3920579A

    公开(公告)日:1975-11-18

    申请号:US46371074

    申请日:1974-04-24

    Applicant: TEXACO INC

    Inventor: SLATER WILLIAM L

    CPC classification number: C01B3/36

    Abstract: Compounds of Group I alkali metals i.e., Na, K, Li, or mixtures thereof are added to the feed to the reaction zone of a partial oxidation synthesis gas generator in order to raise the level of said alkali metals to a value in the range of about 350 to 13,000 parts per million (basis weight of hydrocarbonaceous fuel feed), or more. By this means, the partial oxidation reaction may be improved. Soot formation is reduced or oxygen consumption is decreased, or both. Further, the subject process may be useful for the recovery of naturally-occurring metal values that may be present in the hydrocarbonaceous fuel feed. Thus heavy metal compounds of Ni, V, and Fe in the hydrocarbonaceous fuel may be fluxed with said alkali metals in the reaction zone of the gas generator to facilitate their separation from the process gas stream, and to extend the life of the refractory lining of the reaction zone.

    Abstract translation: 将I族碱金属的化合物即Na,K,Li或其混合物加入到部分氧化合成气发生器的反应区的进料中,以将所述碱金属的水平提高到 约350〜13,000份(含烃燃料原料的基重)以上。 通过这种方式,可以提高部分氧化反应。 烟灰形成减少或氧消耗减少,或两者兼而有之。 此外,本发明方法可用于回收可能存在于烃类燃料进料中的天然存在的金属值。 因此,烃类燃料中的Ni,V和Fe的重金属化合物可以在气体发生器的反应区域中与所述碱金属一起被助熔,以促进它们与工艺气流的分离,并延长耐火衬里的寿命 反应区。

    Process for producing methane-rich gases from hydrocarbons
    32.
    发明授权
    Process for producing methane-rich gases from hydrocarbons 失效
    从碳氢化合物生产富含甲烷的气体的方法

    公开(公告)号:US3866353A

    公开(公告)日:1975-02-18

    申请号:US39272273

    申请日:1973-08-29

    CPC classification number: C10G11/02 C01B3/40 C10G11/00

    Abstract: Methane-rich gases are produced from naphtha or kerosene-type feedstocks having an upper boiling point of 250*C. The hydrocarbons are reacted with water vapor at elevated temperatures and pressures of from 15 to 100 atmospheres in the presence of a nickel-based catalyst in two reaction zones. In the first zone, 40-50 percent of preheated vaporized hydrocarbon is mixed and reacted with 80-90 percent of the water vapor required for the overall reaction. The product gas from the first reaction zone is cooled and mixed with the remaining vaporized hydrocarbons and the remaining water vapor and is then fed to the second reaction zone. The reaction conditions in both zones are such that the temperature of the catalyst in both zones is in the range 300*-500*C. The reaction is preferably carried out in the presence of a catalyst which is 50 to 60 weight percent nickel on a magnesium spinel support.

    Abstract translation: 富甲烷气体由具有250℃高沸点的石脑油或煤油类原料生产。在镍基催化剂存在下,烃在15至100大气压的高温和压力下与水蒸汽反应 在两个反应区。 在第一区,40-50%的预热蒸发的烃混合并与总反应所需的80-90%的水蒸气反应。 将来自第一反应区的产物气体冷却并与剩余的蒸发的烃和剩余的水蒸气混合,然后进料至第二反应区。 两个区域中的反应条件使得两个区域中的催化剂的温度在300-500℃的范围内。该反应优选在催化剂存在下进行,催化剂为50至60重量%的镍, 镁尖晶石支撑。

    Methane production
    36.
    发明授权
    Methane production 失效
    甲烷生产

    公开(公告)号:US3709669A

    公开(公告)日:1973-01-09

    申请号:US3709669D

    申请日:1970-12-28

    CPC classification number: C10K3/04 C07C1/0485 C07C9/04

    Abstract: Process for the production of a methane-rich gas stream from a hydrocarbonaceous feedstock with all steps being carried out at or slightly above the desired pressure of delivery. Effluent gas from a free-flow partial-oxidation synthesis-gas generator, and preferably containing from about 10-26 volume percent methane on a dry basis is reacted with steam and without a catalyst at a temperature in the range of 2,800 to 1,500* F. to produce a stream of shifted gases having a mole ratio H2/CO in the range of 1.5 to 4 and preferably about 3. The shifted gases are then processed by the steps of scrubbing with a liquid hydrocarbon to recover particulate carbon, cooling to condense out water and volatile hydrocarbons, purifying by eliminating H2S and CO2 in a separation zone, and catalytically reacting the remaining H2 and CO in the process gas stream to produce a process gas stream comprising at least 45 volume percent methane on a dry basis.

    Abstract translation: 用于从烃原料生产富甲烷气流的方法,所有步骤都在或略高于所需的输送压力下进行。 来自自由流动部分氧化合成气体发生器的出水气体,优选含有约10-26体积%的甲烷,基于干燥,与蒸汽和不含催化剂的温度在2800-1500°F 以产生摩尔比H2 / CO在1.5至4,优选约3的范围内的转移气体流。然后通过用液体烃洗涤以回收颗粒碳,冷却冷凝的步骤来处理转移的气体 除去水和挥发性烃,通过在分离区中除去H 2 S和CO 2进行纯化,并使工艺气流中剩余的H 2和CO催化反应,以产生包含至少45体积%甲烷的工艺气流。

    Magnesia supports for catalysts in hydrocarbon reforming
    37.
    发明授权
    Magnesia supports for catalysts in hydrocarbon reforming 失效
    MAGNESIA支持碳氢化合物催化剂

    公开(公告)号:US3695856A

    公开(公告)日:1972-10-03

    申请号:US3695856D

    申请日:1970-03-19

    CPC classification number: B01J23/86 B01J23/74 C01B3/40 Y02P20/52

    Abstract: FOR THE CATALYTIC STEAM REFORMING OF HYDROCARBONS, A NOVEL CATALYST COMPOSITION SUBSTANTIALLY FREE OF ALKALI METAL OXIDE AND (A) A CARRIER COMPRISING 70-100% UNCOMBINED MAGNESIA, 0.30% OF A SPINELLE. THE LATTER BEING A PRODUCT OF MAGNESIA COMBINED WITH AN OXIDE OF TRIVALENT METAL, AND 0-15% OF SIO2 IN THE FORM OF AN ALUMINUM SILICATE, AND (B) A CATALYTICALLY ACTIVE METAL SELECTED FROM THE GROUP CONSISTING OF COBALT, NICKEL AND MIXTURES THEREOF. AT LEAST A PORTION OF THE ACTIVE METAL IS IN THE FORM OF A COATING ON THE INTERNAL POROUS SURFACES OF THE CARRIER. THIS CATALYST HAS A LONG LIFE AND IN PARTICULAR DOES NOT LEAD TO CARBON BLACK FORMATION.

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