吸热型碳氢燃料的热氧化安定性研究  

Study on the thermal oxidation stability of an endothermic hydrocarbon fuel.

作　　者：余金花[1] 李丹[1] 郭永胜[1] 方文军[1] 林瑞森[1] 

机构地区：[1]浙江大学化学系,浙江杭州310027

出　　处：《浙江大学学报（理学版）》2007年第2期185-188,共4页Journal of Zhejiang University（Science Edition）

基　　金：国家自然科学基金资助项目(20573096);浙江省自然科学基金资助项目(Y404329)

摘　　要：采用静态法测定了自行研制的吸热型碳氢燃料ZH-100在加强氧化条件下的热氧化安定性能,用红外光谱检测ZH-100热氧化前后官能团的变化.结果表明,在160℃下加强氧化5 h后燃料组分中除了原有的—CH3和—CH2—官能团外,还明显检出了羟基、羰基和碳碳双键3种官能团,红外分析结果很好地解释了燃料经加强氧化后颜色发生变化的原因.通过碘量比色法对氧化过程中生成的过氧化物进行定量分析,解释了燃料的热氧化反应机理,评价了3种抗氧化剂的效果.结果显示合适的抗氧化剂可以使燃料的热氧化安定性有一定程度的提高.The thermal oxidation stability of an endothermic hydrocarbon fuel was investigated by the static state method under different strengthened oxidation conditions. The components of the fuel before and after thermal oxidation were analyzed by using IR. The functional groups of OH, C =O and C=C were obviously detected in the fuel after the thermal-treatment at 160 ℃ for 5 hours. Peroxide species was determined with colorimetry. The mechanism of the oxidative reaction of the hydrocarbon fuel was discussed. Effects of three kinds of antioxidants on the thermal oxidation of the fuel were measured. It was found that the addition of a suitable antioxidant can enhance effectively the stability of the endothermic hydrocarbon fuel.

关 键 词：吸热型碳氢燃料 热氧化安定性 抗氧化剂 

分 类 号：TE624.4[石油与天然气工程—油气加工工程] O642.4[理学—物理化学]