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评述了近年来煤气化领域的最新进展；提出了对改造或新建合成氨厂的具体建议，即对于小型合成氨厂， 可以采用连续气化代替间歇气化、气化型煤代替无烟煤 （或焦炭） 或选用循环流化床气化炉； 对于中型合成氨厂， 可以采用连续气化或气流床气化技术； 对于大型合成氨厂，则采用气流床气化技术、流化床气化燃烧一体化技术或者采取Ｌｕｒｇｉ炉和湿法气流床（如Ｔｅｘａｃｏ炉） 联用的方法．
The recent progress in the field of coal gasification was reviewed. Concrete suggestions for the reform or new ammonia plant were put forward. For the small ammonia plant, continuous gasification can be used instead of intermittent gasification. The gasified coal can replace anthracite (or coke) or Use of circulating fluidized bed gasifier; for medium-sized ammonia plant, you can use continuous gasification or entrained flow gasification technology; for large-scale ammonia plant, the use of entrained flow gasification technology, fluidized bed gasification combustion integration technology or to take Lurgi furnace and wet air entrained bed (such as Texaco furnace) method used in conjunction.