煤炭经炉内彻底干馏，煤气热值高，下段煤气不含焦油。
1·The coal gas producer furnace is the comparison of gasification process complex, including both gasification mixed reaction, also have dry distillation and drying process.
煤气发生炉内进行的气化过程是比较复杂的，既有气化反应，也有干馏和干燥过程。
2·In the dry distillation period inside, the volatile coal into small molecule hydrocarbons and exhalation, centralized recovery or improve gas calorific value.
在干馏段内，煤中的挥发分转变为小分子烃类而析出，集中回收或提高煤气热值。
3·The furnace of coal gas calorific value high thoroughly dry distillation under section gas excluding, tar.
煤炭经炉内彻底干馏，煤气热值高，下段煤气不含焦油。