| 摘要 |
PURPOSE:To inexpensively prepare a catalyst for liquefying coal enhanced in activity, by drying an iron salt powder containing crystal water and/or adhered water and baking the dried one at 200-800 deg.C to form the catalyst for liquefying coal. CONSTITUTION:After an iron salt powder containing crystal water and/or adhered water was dried, the dried one is baked at 200-800 deg.C under a reductive atmosphere to prepare a catalyst for liquefying coal. As the iron salt powder, there is a salt consisting of divalent or trivalent iron and an acid and, concretely, there are inorg. iron salts such as ferrous chloride, ferric chloride, ferrous sulfate, ferric sulfate, ferrous nitrate or ferric nitrate. In order to effectively advance fine pulverization in a degree equal to or more than the thermal decomposition of the iron salt and to enhance coal liquefying effect, sulfur and/or hydrogen sulfide gas sufficient to sulfide iron at the time of baking are allowed to coexist. As a baking reaction apparatus, there is a fluidized furnace or tunnel kiln. |
