| 摘要 |
<p>1. Process for the gasification of carbonaceous substance, especially coal, according to which the carbonaceous substance is injected, at the same time as oxygen and substances for forming a purifying slag, with the aid of lances into a gasification vessel containing a metal bath capable of dissolving carbon, in particular a bath of molten iron, which process is characterized in that : - the said lances (6, 7) are kept in an unimmersed position ; - water is also injected into the vessel and a heat energy input is performed conjointly in order to compensate for the cooling effect of the water injection ; - the slag (14) floating on top of the metal bath (13) is collected continuously as it is being formed, by overflowing a sill (15) ; - the slag collected (14') is allowed to decant to permit the separation by gravity of the metal droplets which are present in suspension therein and which collect on the bottom ; - and the slag thus purified is removed continuously and the liquid metal (16) obtained by decanting the slag is recycled, also continuously, into the metal bath.</p> |
