Production of methane
    1.
    发明授权
    Production of methane 失效
    生产甲烷

    公开(公告)号:US3928001A

    公开(公告)日:1975-12-23

    申请号:US42947173

    申请日:1973-12-28

    Applicant: TEXACO INC

    Abstract: Improved process for the production of substantially pure methane or clean synthetic natural gas (SNG) including the steps of partial oxidation of a hydrocarbonaceous fuel feed with substantially pure oxygen to produce a process gas stream comprising principally H2, and CO and having a critical mole ratio H2/CO in the range of 1.0 to below 1.5 and preferably 1.0 to 1.3; cooling the process gas stream and separating H2O, CO2 particulate carbon and gaseous impurities therefrom, reacting together the H2 and CO in said process gas stream in a catalytic methanation zone to produce a methane-rich gas stream containing gaseous impurities selected from the group consisting primarily of H2O, and CO2, along with minor amounts of H2, CO, N2, and Ar and mixtures thereof; and removing said H2O and CO2 to produce a product gas stream comprising substantially pure methane i.e. 95 mole % or higher (dry basis). The product gas may be used as a clean substitute natural gas having a gross heating value of about 980 BTU/SCF or higher.

    Abstract translation: 用于生产基本上纯的甲烷或清洁合成天然气(SNG)的改进方法,包括以基本上纯的氧气部分氧化烃类燃料进料以产生主要包含H 2和CO并且具有临界摩尔比的工艺气流 在1.0至1.5以下,优选1.0至1.3的范围内的H 2 / CO; 冷却工艺气流并从其中分离H 2 O,CO 2颗粒碳和气态杂质,使催化甲烷化区中所述工艺气流中的H 2和CO一起反应,以产生富含甲烷的气流,其中气态杂质选自主要 的H 2 O和CO 2,以及少量的H 2,CO,N 2和Ar及其混合物; 并除去所述H 2 O和CO 2以产生包含基本上纯的甲烷,即95摩尔%或更高(干基)的产物气流。 产品气体可以用作总热值约980BTU / SCF或更高的洁净的替代天然气。

    Synthesis gas production by partial oxidation
    2.
    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。

    Shift conversion process for production of hydrogen
    4.
    发明授权
    Shift conversion process for production of hydrogen 失效
    用于生产氢的转换转换过程

    公开(公告)号:US3595619A

    公开(公告)日:1971-07-27

    申请号:US3595619D

    申请日:1968-03-29

    Applicant: TEXACO INC

    CPC classification number: C01B3/16 Y02P20/129

    Abstract: IN A STEADY-STATE CONTINUOUS FLOW FIXED-BED WATER-GAS CATALYST SHIFT CONVERSION REACTOR COMPRISING A PLURALITY OF SEPARATE CATALYST BEDS IN SERIES AT A TEMPERATURE IN THE RANGE OF ABOUT 350*F. TO 1050*F. AND A PRESSURE IN THE RANGE OF ABOUT 1 TO 250 ATMOSPHERES, A GASEOUS FEED STREAM COMPRISING H2O AND CO IS CONVERTED INTO H2 AND CO2. A FRACTION OF THE EFFLUENT GAS STREAM FROM THE FIRST CATALYST BED IN THE REACTOR IS RECYCLED AND MIXED WITH A FRESH FEED STREAM OF PROCESS GAS E.G. SYNTHESIS GAS TO COMPRISE SAID GASEOUS FEED STREAM TO THE FIRST CATALYST BED. THE RESIDUAL FRACTION OF SAID EFFLUENT GAS STREAM IS COOLED AND INTRODUCED INTO THE SECOND CATALYST BED IN THE REACTOR. CO CONVERSION IS IMPROVED, PROCESS FEED STEAM REQUIREMENTS ARE REDUCED, LESS CATALYST IS NEEDED, UNDERSIRABLE BACK AND SIDE REACTIONS ARE MINIMIZED, AND THE SYSTEM IS STABILIZED. OPERATING THE SYSTEM AT HIGH PRESSURE ALSO REDUCES OVERALL CATALYST REQUIREMENTS.

    Production of methane-rich gas stream
    7.
    发明授权
    Production of methane-rich gas stream 失效
    生产富甲烷气流

    公开(公告)号:US3927998A

    公开(公告)日:1975-12-23

    申请号:US42946873

    申请日:1973-12-28

    Applicant: TEXACO INC

    Abstract: Improved process for the production of a methane-rich product gas stream comprising the following steps: partial oxidation of a hydrocarbonaceous fuel feed employing a H2O/fuel weight ratio of 2.2 to 2.9 and an atomic ratio of oxygen in the substantially pure oxygen to carbon in the fuel of 0.80 to 0.84 to produce a process gas stream comprising principally H2, CO and CH4 in which the mole ratio H2/CO is 1 to 2.5, the mole % CH4 is 15 or more, and the particulate carbon is 13 weight % (basis carbon in the fuel) or less; cooling the process gas stream and separating H2O, CO2, carbon, and gaseous impurities; reacting together the H2 and CO in said process gas stream in a catalytic methanation zone to produce a methane-rich gas stream principally comprising CH4 and containing gaseous members selected from the group consisting of H2, CO, H2O, CO2, and mixtures thereof; and removing said H2O and CO2 to produce a methane-rich product gas stream comprising about 93 mole percent of CH4. By means of the subject invention there is produced a high heating value clean fuel gas or a substitute natural gas of about 960 BTU per SCF or more.

    Abstract translation: 用于生产富含甲烷的产物气流的改进方法包括以下步骤:使用H 2 O /燃料重量比为2.2至2.9的烃类燃料进料的部分氧化和基本上纯的氧中的氧的原子比与碳的原子比 燃料为0.80至0.84,以产生主要为H 2,CO和CH 4的工艺气流,其中摩尔比H 2 / CO为1至2.5,摩尔%CH 4为15或更大,并且颗粒碳为13重量% 燃料中的基础碳)或更少; 冷却工艺气流并分离H 2 O,CO 2,碳和气态杂质; 在催化甲烷化区中使所述工艺气流中的H 2和CO一起反应,以产生主要包含CH 4并含有选自H 2,CO,H 2 O,CO 2及其混合物的气态成员的富甲烷气流; 并且除去所述H 2 O和CO 2以产生包含约93%(摩尔)CH 4的富甲烷产物气流。通过本发明,产生高热值清洁燃料气体或约960BTU的替代天然气 SCF或更多。

    Production of reducing gas
    8.
    发明授权
    Production of reducing gas 失效
    生产减少气体

    公开(公告)号:US3694373A

    公开(公告)日:1972-09-26

    申请号:US3694373D

    申请日:1971-04-19

    Applicant: TEXACO INC

    CPC classification number: C01B3/36

    Abstract: A GAS HAVING A REDUCING RATIO (MOLS OF CO+H2 TO MOLS OF CO2+H2O) OF AT LEAST 10 IS PRODUCED BY PARTIAL COMBUSTION OF A HYDROCARBON OIL WITH OXYGEN OF AT LEAST 95% PURITY, THE OIL BEING INTRODUCED AS A LIQUID MIXTURE WITH WATER INTO THE REACTION ZONE. TEMPERATURE IN THE REACTION ZONE IS MAINTAINED BELOW ABOUT 3000*F. AND THE PRODUCT GAS CONTAINS AS FREE CARBON NOT MORE THAN 2 WEIGHT PERCENT OF THE CARBON CONTENT OF THE FEED.

    Process for the generation of synthesis gas from oil
    10.
    发明授权
    Process for the generation of synthesis gas from oil 失效
    从油中合成气体的产生过程

    公开(公告)号:US3639261A

    公开(公告)日:1972-02-01

    申请号:US3639261D

    申请日:1968-03-27

    Applicant: TEXACO INC

    Inventor: SLATER WILLIAM L

    CPC classification number: C01B3/36 C01B3/50 C01B2203/048 C01B2203/049

    Abstract: Process for the production of synthesis gas from hydrocarbon liquids by direct partial oxidation with oxygen-containing gas and steam wherein oil containing carbon recovered from the process is supplied to a flow-type synthesis gas generator maintained at an autogenous temperature within the range of 1,800-3,000* F., effluent gas from the reaction zone is cooled by indirect heat exchange to a temperature above the dew point of the product gas stream, and the product gas stream scrubbed with liquid hydrocarbon at a temperature above the dew point of water vapor contained in said product gas and below the boiling point the hydrocarbon liquid and resulting hydrocarbon liquid containing recovered carbon is supplied to the gas generation zone as part of the feedstock for the production of synthesis gas.

    Abstract translation: 通过用含氧气体和蒸汽直接部分氧化从烃液体生产合成气的方法,其中从该方法回收的含有油的碳被供应到维持在1800℃-100℃范围内的自生温度的流式合成气体发生器, 来自反应区的流出气体通过间接热交换冷却到高于产物气流露点的温度,并且在高于含水蒸汽露点的温度下用液态烃洗涤产物气流 在所述产物气体中并且低于沸点的烃液体和含有回收碳的所得烃液体作为生产合成气的原料的一部分被供应到气体发生区。

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