BCH-1型半自动碳氢测定仪测定煤中碳氢的影响因素

The influencing factors of determination of carbon and hydrogen in coal using BCH-1 semi-automatic carbon and hydrogen analyzer

介绍了电量-重量法测定煤中碳氢的原理,结合BCH-1型半自动碳氢测定仪的实际操作经验,从称量、净化系统、系统气密性、煤样推进速度、氧气流量、五氧化二磷膜、预处理、空白值、U型管失效等方面分析了碳氢测定的影响因素。

This paper introduced the principles for determination of carbon and hydrogen in coal using electricity - gravimetric method, combining with the practical operating experience of BCH-1 semi-automatic carbon and hydrogen analyzer, the influencing factors of determination of carbon and hydrogen in coal were analyzed from aspects such as weighing, purification system, gas tightness of the system, propelling speed of samples, oxygen flow rate, phosphorus pentoxide membrane, pre treatment, blank value and failure of u-tube.