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    • 4. 发明授权
    • Conversion of hydrocarbon oil to a synthetic natural gas
    • 石油转化为合成天然气
    • US3844734A
    • 1974-10-29
    • US31870172
    • 1972-12-27
    • PHILLIPS PETROLEUM CO
    • JOHNSON M
    • C10G69/04C10L3/00C10G13/02
    • C10L3/00C10G69/04
    • A crude hydrocarbon oil or gas oil is cracked with a ''''used'''' cracking catalyst having a high metal content under conditions of severity to produce gasoline and lighter products to an optimum extent. Effluent is cooled to obtain a gasoline fraction with large amounts of H2 and light gases and a heavier product stream which is recycled to the cracking operation. Gasoline and higher components are dehydrosulfurized, using generated hydrogen for the purpose. Thus treated stream is cooled to obtain a liquid and a gas stream. A portion of the gas stream is used as a hydrogenrich gas for the catalytic hydrodesulfurization. Another portion is treated to remove H2S therefrom and thus treated gas and liquid obtained upon the cooling, after some preheat, are passed to a synthetic natural gas reactor, preferably after further treatment to produce a stream containing less than about one part per million of sulfur. The process is self-sustaining in hydrogen. Coke deposited on catalyst on regeneration yields sufficient heat to supply steam requirement for Synnat process.
    • 原油烃油或瓦斯油在苛刻条件下具有高金属含量的“使用”裂化催化剂裂化,以最佳程度生产汽油和轻质产品。 将流出物冷却以获得具有大量H 2和轻质气体的汽油馏分和再循环至裂解操作的较重产物流。 汽油和更高的组分被脱硫,使用生成的氢气为目的。 将这样处理的物流冷却以获得液体和气流。 一部分气流用作催化加氢脱硫的富氢气体。 处理另一部分以从其中除去H 2 S,并且在经过一些预热之后经冷却获得的经处理的气体和液体通过合成天然气反应器,优选经过进一步处理以产生含有少于约百万分之硫的硫 。 该过程在氢气中是自维持的。 在再生催化剂上沉积的焦炭产生足够的热量,为Synnat工艺提供蒸汽需求。