水煤浆加压气化原料用煤更换总结

渭河低级以厂原采用的黄陵煤由于煤质灰份含量及灰熔点偏高，影响德士古气化炉长周期稳定运行。经广泛调研分析之后，原料煤更换为华亭煤、基本满足了气化炉长周期稳定运行的要求。对原料煤更换的原因、试烧及结果进行了分析论证，指出了今后应进一步提高煤的成浆性能的方法。

Sum-Up of Change of Feedstock Coal for Pressure Gasification of Coal-Water Slurry

Weihe Chemical Fertilizer Plant originally used Huangling coal, but due to its high ash content and ash fusion point, it became an obstacle in the long term stable operation of the Texaco Gasifier. After extensive survey and study and analysis, the feedstock coal has been changed to Huating coal, which basically satisfies the requirements for long term stable operation of the gasifier. An analysis is given of the reasons for changing the feedstock coal, trial operating by using Huating coal as feedstock and results obtained, and demonstrations are presented. A method is put forward for further improvement on the slurrying property of the coal in future.