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.

• 渭河化肥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。