Process for reducing the sulfur content of coal and coal char and the
ignition temperature of coal char
    1.
    发明授权
    Process for reducing the sulfur content of coal and coal char and the ignition temperature of coal char 失效
    降低煤炭和煤焦炭含硫量和煤焦点燃温度的方法

    公开(公告)号:US4188191A

    公开(公告)日:1980-02-12

    申请号:US629875

    申请日:1975-11-07

    CPC classification number: C10L9/02

    Abstract: This invention covers a process for reducing the sulfur content of coal and coal char and the ignition temperature of coal char. Coal is converted into char at temperatures not in excess of about 1600.degree. F. The char is introduced into a caustic system which is maintained at a temperature between about 500.degree. F. to about 750.degree. F. Intimate contact is maintained between the caustic and the char for a period of about 2 to 30 minutes to leach the sulfur from the char. The desulfurized char is thereafter separated from the caustic and washed.

    Abstract translation: 本发明涉及一种降低煤炭和煤炭硫含量以及煤焦点燃温度的方法。 煤在不超过约1600°F的温度下转化为焦炭。将焦炭引入保持在约500°至约750°F之间的苛性碱系统中。在苛性碱和苛性碱之间保持紧密接触 该炭的时间约为2至30分钟,从炭中浸出硫。 然后将脱硫炭从苛性碱中分离并洗涤。

    Method of producing a colloidal fuel from coal and a heavy petroleum
fraction
    2.
    发明授权
    Method of producing a colloidal fuel from coal and a heavy petroleum fraction 失效
    从煤和重质石油馏分制备胶态燃料的方法

    公开(公告)号:US4397653A

    公开(公告)日:1983-08-09

    申请号:US321346

    申请日:1981-11-13

    CPC classification number: C10L1/322

    Abstract: A method is provided for combining coal as a colloidal suspension within a heavy petroleum fraction. The coal is broken to a medium particle size and is formed into a slurry with a heavy petroleum fraction such as a decanted oil having a boiling point of about 300.degree.-550.degree. C. The slurry is heated to a temperature of 400.degree.-500.degree. C. for a limited time of only about 1-5 minutes before cooling to a temperature of less than 300.degree. C. During this limited contact time at elevated temperature the slurry can be contacted with hydrogen gas to promote conversion. The liquid phase containing dispersed coal solids is filtered from the residual solids and recovered for use as a fuel or feed stock for other processes. The residual solids containing some carbonaceous material are further processed to provide hydrogen gas and heat for use as required in this process.

    Abstract translation: 提供了一种将煤作为重质石油馏分中的胶态悬浮液组合的方法。 煤被破碎成中等粒度,并且形成具有重质石油馏分如沸点为约300-550℃的倾析油的浆料。将浆料加热至400-500℃的温度 在冷却至低于300℃的温度下,仅限于约1-5分钟的有限时间。在高温下的有限接触时间期间,浆料可与氢气接触以促进转化。 含有分散的煤固体的液相从残留固体中过滤并回收,用作其它工艺的燃料或原料。 含有一些含碳材料的残留固体被进一步处理以提供氢气和热量,以便在该方法中要求使用。

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