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1·Technical bases for coproduction of ammonia and synthesis gas are analyzed. Feasibility study is discussed briefly. Process flowsheet is also put forward.

分析了大型合成氨、合成气联产的技术基础，初步探讨该流程的可行性，提出了氨、合成气联产的工艺流程。

2·Technological process suitable for coal based city gas should be chosen according to the quality of coal and the scale of the factory and the coproduction of chemical products.

以煤为原料制取城市煤气，要根据煤质、工厂规模、联产化工产品等不同特点，来选择适宜的工艺路线，可以是煤的完全气化，也可以是煤的焦化。