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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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合成气甲烷化反应积炭过程的热力学分析
, PP. 978-984
Keywords: 替代天然气,甲烷化,热力学分析,催化剂床层积炭
Abstract:
？建立了煤制替代天然气工艺中合成气甲烷化过程的热力学计算模型,并对该反应体系的10个反应进行了分析计算,得到了各组分的平衡组成和各反应的标准化学平衡常数.研究了反应温度、操作压力、原料气组分浓度和产品气循环比等对催化剂床层积炭的影响,发现容易导致积炭的热力学条件为550~800℃的反应温度和0.1~1.5mpa的操作压力,且温度在700℃左右、操作压力低于1.0mpa时催化剂床层积炭量最大.本研究针对催化剂床层积炭规律提出了低温、相对高压、合理的原料气组成是有利于缓解催化剂床层积炭、提高产品收率及保持催化剂活性的优化反应操作条件.
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