A process of catalytic coal gasification characterized by mixing an inexpensive, low rank coal with an aqueous solution of inexpensive, widely existing alkali metal or alkaline earth metal chlorides, such as Nacl, KCl, or the like; adding a pH adjustor such as ammonia to the resulting mixture to adjust...http://www.google.com.au/patents/US4848983?utm_source=gb-gplus-sharePatent US4848983 - Catalytic coal gasification by utilizing chlorides
