China is a country of ‘lean oil, less gas, rich in coal’, therewith the technology of coal gasification is an important means to realize the clean and efficient use of coal. Moreover the technology of pressured pulverized coal gasification recognized as a mature technology in the industry possess advantages of large production capacity and high gasification efficiency. However, the erosion of special valve from abrasion by particles of process fluid can be serious, which will cause the short service cycle and huge economic losses. This paper is based on the successful experience in the similar domestic plants among these years, summarize the application of variety of special valves in the industry, put forward suggestions of instrument selection, and provide the reference for the engineering of similar projects in the future.%我国是一个“贫油、少气、富煤”的国家，煤气化技术是实现煤炭清洁高效利用的重要手段。粉煤加压气化技术是目前业内认可较为成熟的技术，具有生产能力大、气化效率高的特点。然而由于其工艺介质的特点，其中所应用的特殊阀门磨损严重，使用周期短，导致装置频繁停车，造成了巨大的经济损失。本文根据近些年国内粉煤气化的成功运行经验，对其中多种特殊应用的阀门使用进行了总结探讨，提出建议的仪表选型，为同类项目的仪表设计工作提供参考依据。
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