Coal gasification technology can be used in the production of ethanol and nitroglycerine, but not urea. Ethanol can be derived from synthesis gas (a product of coal gasification) through fermentation or chemical processes, while nitroglycerine, an explosive, can also be synthesized via organic chemistry involving intermediates derived from coal gasification. Urea, on the other hand, is primarily produced from ammonia and carbon dioxide in a Haber-Bosch process, making coal gasification unnecessary for its production. This distinction underlines the versatility of coal gasification in creating different chemical feedstocks while highlighting the specific pathways and processes for these substances.