Method for improving gasification process rates and yields by means of
electrophilic aromatic substitution pretreatment of coal
    60.
    发明授权
    Method for improving gasification process rates and yields by means of electrophilic aromatic substitution pretreatment of coal 失效
    通过煤的亲电芳烃取代预处理改善气化过程速率和产率的方法

    公开(公告)号:US4072475A

    公开(公告)日:1978-02-07

    申请号:US720144

    申请日:1976-09-03

    IPC分类号: C10B57/08 C10J3/00 C10L9/02

    摘要: Coal is electrophilically aromatically substituted (i.e., alkylated or acylated) in the presence of an alkylating or acylating agent with or without a catalyst under mild conditions to give a treated coal product. This treated coal product may then be solvent extracted to give an extract and an upgraded coal residue, with this residue being subjected to a gasification process procedure or the treated coal product may be subjected to gasification process procedures without any prior extraction being performed. By means of either technique, a material is prepared for which the rate of gasification and the yield of desired product upon gasification is dramatically increased when compared with nonelectrophilically aromatically substituted material (i.e., raw coal). An improved gasification process is disclosed comprising the steps of electrophilically aromatically substituting coal and subjecting such pretreated coal, either extracted or unextracted to gasification process techniques.

    摘要翻译: 在温和条件下,在具有或不具有催化剂的烷基化或酰化剂的存在下,煤被亲电芳烃取代(即烷基化或酰化),得到经处理的煤制品。 然后可以对经处理的煤产品进行溶剂萃取,得到提取物和升级后的煤渣,将该残余物进行气化处理程序,或者经处理的煤制品可进行气化处理程序,而不进行任何先前的提取。 通过任一技术,制备了与非吸附性芳香取代的材料(即原料煤)相比,气化速率和所需产物在气化时的产率显着增加的材料。 公开了一种改进的气化方法,其包括以下步骤:亲煤取代煤,并对经过这些预处理的煤进行气化处理技术的提取或未提取。