公开(公告)号：US3709669A

公开(公告)日：1973-01-09

申请号：US3709669D

申请日：1970-12-28

Applicant: TEXACO DEVELOPMENT CORP

Inventor： MARION C ,  SCHLINGER W ,  SLATER W

IPC: C07C1/04 ,  C10K3/04 ,  C01B2/14

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。