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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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应用tg-ftir技术研究黄土庙煤催化热解特性
, PP. 271-276
Keywords: 黄土庙(htm)煤,催化热解,动力学分析,mox/usy,tg-ftir
Abstract:
？用浸渍法制备过渡金属氧化物担载型催化剂mox/usy(m=co、mo、co-mo),用热重红外联用技术考察了mox/usy催化剂对黄土庙(htm)煤热解失重特性和热解产物生成规律的影响。热重实验结果表明,mox/usy催化剂可使htm煤热解的二次脱气条件更为温和,热解峰温分别提前14、23和9℃。动力学分析结果表明,mox/usy催化剂可降低htm煤样热解的活化能。ft-ir研究表明,mox/usy催化剂可有效改善htm煤热解产物的组成和分布,coox/usy催化剂能显著提高htm煤热解产物中高热值气体(co、ch4)和轻质芳烃以及脂肪烃类化合物的含量;moox/usy催化剂没有明显改善htm煤热解产物组成和分布;moox-coox/usy催化剂可促进co、ch4、轻质芳烃和脂肪烃类化合物的生成,却使热解产物的生成向高温区移动,说明usy负载的不同过渡金属氧化物对煤样热解行为和热解产物有较大影响。
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