3-甲基吡啶氯氟化反应积炭失活催化剂的烧炭动力学模型
发布时间:2018-10-24 07:28
【摘要】:采用TPO-MS表征了3-甲基吡啶氯氟化反应积炭失活CrO-Al催化剂,发现催化剂的积炭由碳、氢、氮组成,并且烧炭温度上限为500℃。通过热重分析研究了该催化剂的烧炭动力学行为,发现相同反应条件下,随着反应时间延长,催化剂积炭量增加而且积炭种类从容易烧除的轻积炭向不易烧除的重积炭转化,因此不同反应时间的催化剂积炭有不同的烧炭动力学模型。选取反应5 h和反应10 h的积炭催化剂做烧炭再生动力学实验,分别建立两种积炭催化剂的烧炭再生动力学模型,并且与实际的烧炭数据进行拟合,线性相关系数R~20.97。
[Abstract]:The deactivated CrO-Al catalyst for the fluorination of 3-methylpyridine was characterized by TPO-MS. It was found that the carbon deposition of the catalyst was composed of carbon, hydrogen and nitrogen, and the upper limit of the burning temperature was 500 鈩,
本文编号:2290726
[Abstract]:The deactivated CrO-Al catalyst for the fluorination of 3-methylpyridine was characterized by TPO-MS. It was found that the carbon deposition of the catalyst was composed of carbon, hydrogen and nitrogen, and the upper limit of the burning temperature was 500 鈩,
本文编号:2290726
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