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    Production of a clean methane-rich fuel gas from high-sulfur containing hydrocarbonaceous materials
    11.
    发明授权
    Production of a clean methane-rich fuel gas from high-sulfur containing hydrocarbonaceous materials 失效
    从含高含硫烃质材料生产清洁的富甲烷燃料气体

    公开(公告)号：US3928000A

    公开(公告)日：1975-12-23

    申请号：US42947073

    申请日：1973-12-28

    Applicant: TEXACO INC

    Inventor： CHILD EDWARD T ,  ROBIN ALLEN M ,  SLATER WILLIAM L ,  RICHTER GEORGE N

    IPC: C10G9/38 ,  B01J21/00 ,  B01J23/00 ,  B01J29/00 ,  C01B3/22 ,  C01B3/36 ,  C07B61/00 ,  C07C1/00 ,  C07C1/02 ,  C07C1/04 ,  C07C9/04 ,  C07C67/00 ,  C10J3/46 ,  C10J3/06

    CPC classification number: C07C1/0435 ,  C01B3/22 ,  C01B3/36 ,  C07C1/0485 ,  C07C2521/04 ,  C07C2521/08 ,  C07C2521/16 ,  C07C2523/26 ,  C07C2523/28 ,  C07C2523/30 ,  C07C2523/75 ,  C07C2523/755 ,  C07C2523/882 ,  C07C2529/04 ,  C10J3/466 ,  C10J2300/1662 ,  C10K1/10 ,  C10K3/04 ,  C10L3/08 ,  Y02A50/2327 ,  Y02P20/52 ,  C07C9/04

    Abstract: This is an improved process for converting low-cost high-sulfur containing hydrocarbonaceous materials into a clean methane-rich gas stream which may be burned as a fuel without contaminating the atmosphere. A high-sulfur hydrocarbonaceous fuel is gasified by partial oxidation to produce a process gas stream which is cooled, cleaned and subjected to catalytic methanation over a sulfur-resistant catalyst comprising 0.8 to 10 atoms of an element selected from the group comprising Co, Cr, W or mixtures thereof per atom of an element selected from the group Mo, Ni, or mixtures thereof. The catalyst may be supported on a structure formed from Group III and IV elements e.g. alumina, silica stabilized alumina, zeolite. A distinct advantage of the subject process, is that the sulfur in the process gas stream is not removed prior to the methanation step. Rather, the sulfur is permitted to remain in the process gas stream in order to moderate the highly exothermic methanation reaction. After cooling and purification by removing one or more members of the group H2, CO, H2O, CO2, COS, H2S, Ar, and N2, the resulting methane-rich gas stream comprises about 10 to 95 mole % CH4. Optionally, the CH4 content of said methane-rich gas stream may be increased to about 98 mole % or more by the additional steps of water-gas shift conversion, catalytic methanation, cooling, drying and CO2 removal. The product gas would then have a gross heating value of about 1000 BTU/SCF.

    Abstract translation: 这是一种将低成本含高含硫烃类材料转化为清洁的富甲烷气流的改进方法，可将其作为燃料燃烧而不污染大气。 高硫含烃燃料通过部分氧化气化，产生一种工艺气体流，其被冷却，清洗并经过包含0.8-10个元素的选自Co，Cr， W或其混合物，每一元素选自Mo，Ni或其混合物。 催化剂可以负载在由III族和IV族元素形成的结构上。 氧化铝，二氧化硅稳定的氧化铝，沸石。 本发明方法的显着优点是，在甲烷化步骤之前，工艺气流中的硫不被除去。 相反，允许硫保留在工艺气流中，以缓和高度放热的甲烷化反应。 在通过除去H 2，CO，H 2 O，CO 2，COS，H 2 S，Ar和N 2组中的一种或多种成分冷却和纯化后，所得富甲烷气流包含约10至95摩尔％的CH 4。 通过水煤气变换转化，催化甲烷化，冷却，干燥和二氧化碳除去的附加步骤，所述富甲烷气流的CH 4含量可增加至约98％（摩尔）或更多。 然后产品气体的总热值为约1000BTU / SCF。

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