【摘 要】
：
石油沥青质是原油中最重、芳香性最强的组分,一般认为沥青质是溶解度类物质,常用的有正戊烷—沥青质,即甲苯可溶,正戊烷不溶,正庚烷-沥青质,即甲苯可溶,正庚烷不溶。沥青
【机 构】
：
中国石化石油化工科学研究院,北京100083
【出 处】
：
第九届国际分子模拟与信息技术应用学术会议(ICMS&I2018)
论文部分内容阅读
石油沥青质是原油中最重、芳香性最强的组分,一般认为沥青质是溶解度类物质,常用的有正戊烷—沥青质,即甲苯可溶,正戊烷不溶,正庚烷-沥青质,即甲苯可溶,正庚烷不溶。沥青质并没有一个确定的分子结构,它是一种复杂的分子混合物,甚至可能含有约一百万种不同的化学结构。近年来,沥青质分子水平表征工作取得了一定的进步,目前普遍接受沥青质分子平均分子量为750g/mol,由芳核(4-10个芳环),环烷环,脂肪侧链(3-7个碳)及S、N、O等杂原子组成[1-4]。
其他文献
A novel recombinant hirudin,RGD-hirudin,inhibits the activity of thrombin and the aggregation of platelets.Here,we successfully expressed 15N,13C-labeled RG
Casein has been recognized as a good source of bioactive peptides that can be used for the production of functional food.In this study,thrombin inhibitory p
SIRT2,which is a NAD+(nicotinamide adenine dinucleotide)dependent deacetylase,has been demonstrated to play an important role in the occurrence and developm
The 5-year relative survival rate of all types of cancer has increased significantly over the past three decades partly due to the targeted therapy.However,
Introduction: Psoriasis is a refractory skin disorder,and usually requires a lifetime control.Traditional Chinese medicine(TCM)is effective and safe for thi
C5石油树脂的加入使得复合体系的结合能增加，自由体积分数减少，使得氯化丁基橡胶分子链间的摩擦增加。这种分子间相互作用使得复合材料的玻璃化转变温度向高温方向移动，阻尼温域
One of the high gain target concepts proposed for direct-drive inertial fusion energy (IFE) applications uses liquid DT fuel that is supported by a low density