光度计测定镜质体反射率工作曲线的建立与应用  

Working curve establishment and application of vitrinite reflectance determined by microphotometer

作　　者：陈洪博[1,2,3] 白向飞[1,2,3] 张宇宏[1,2,3] 王越[1,2,3] 

机构地区：[1]煤炭科学研究总院北京煤化工研究分院,北京100013 [2]煤炭资源高效开采与洁净利用国家重点实验室,北京100013 [3]国家能源煤炭高效利用与节能减排技术装备重点实验室,北京100013

出　　处：《洁净煤技术》2014年第5期70-74,共5页Clean Coal Technology

基　　金：国家自然科学基金重点资助项目(U1361122);"十二五"国家科技支撑计划资助项目(2012BAB19B05)

摘　　要：为了优化配煤,提高镜质体反射率测试精度,以MSP UV-VI2000型光度计为例,介绍了测定镜质体反射率的原理和测试流程。推导出了测定反射率的通用公式和专用公式。对2种公式进行比较发现:专用公式需要校准设备,过程繁琐。通用方法具有普遍适用的特点,其基本步骤为人工读数,做曲线,计算反射率值,绘制直方图。根据公式,分析了工作曲线的最大量程,反射率的分辨能力。重点比较分析了不同斜率的2条光度计工作曲线以及在测试过程中如何选择工作曲线。最后提出了光度计测定镜质体反射率应遵循的原则。In order to optimize coal blending process and improve test precision of vitrinite reflectance,taking MSP UV-VI2000 photometer as research object,introduced its working principle,process. Obtained the general formal and special formula of vitrinite reflectance. The comparison of the two formulas show that,the special formula needs to correct equipment and the process is complicated. The special formula has an universally applicable characteristic. The experimental procedure includes measuring,drawing curve,calculating reflectance and drawing histogram. Based on the formula,analyze the maximum measurement range and resolving power of photometer. Compare two working curves which have different slope. Provide principles with which should be complied when measuring the reflectance with photometer.

关 键 词：镜质体 反射率 显微光度计 原理 

分 类 号：TQ531.2[化学工程—煤化学工程] TD849[矿业工程—煤矿开采]