A comparison is made of the ash-water (black water) system flowcharts for the Texaco coal-water slurry gasifier in China, their respective characteristics and drawbacks are evaluated, and a brief summary is given.

• 摘要主要对国内德士古水煤浆气化装置中几种灰水（黑水）系统的流程加以比较，分别评价了它们各自的特点和缺点，并做出简要的总结。