CAJ | 학술논문

分离水热裂解催化降黏反应前后的特超稠油，利用元素分析仪、分子量测定仪、核磁共振仪对反应前后沥青质及胶质的元素分析、平均分子量及核磁共振氢谱进行测定，结合化学分子动力学模拟方法研究了特超稠油水热裂解催化反应动力学机理。水热裂解催化反应后的特超稠油黏度大幅度降低，胶质及沥青质氢碳原子比均增大，芳碳率降低；分子量降低，尤其是沥青质的分子量降低幅度较大；胶质分子总能量降低，沥青质分子总能量增加，胶质分子在水溶液中稳定性增强，沥青质分子稳定性变差，降黏催化剂能与稠环芳烃盘中心核沥青质接触作用，稳定的芳环盘状结构破坏；胶质与沥青质分子尺寸明显减小。
분리수열렬해최화강점반응전후적특초주유，이용원소분석의、분자량측정의、핵자공진의대반응전후력청질급효질적원소분석、평균분자량급핵자공진경보진행측정，결합화학분자동역학모의방법연구료특초주유수열렬해최화반응동역학궤리。수열렬해최화반응후적특초주유점도대폭도강저，효질급력청질경탄원자비균증대，방탄솔강저；분자량강저，우기시력청질적분자량강저폭도교대；효질분자총능량강저，력청질분자총능량증가，효질분자재수용액중은정성증강，력청질분자은정성변차，강점최화제능여주배방경반중심핵력청질접촉작용，은정적방배반상결구파배；효질여력청질분자척촌명현감소。
The extra-heavy oil before and after catalytic aquathermolysis were separated,and the properties of resin and asphaltene both before and after reaction were studied by using molecular weight analysis(VPO),nuclear magnetic reso-nance(NMR),and elemental analysis(EL). The chemical molecule simulating dynamics software Hyperchem 7.5 was used in study of the molecular dynamics of extra-heavy oil by catalytic aquathermolysis. After the catalytic aquathermolysis,we found that the viscosity of heavy oil reduced largely,the H/C rate of heavy oil,resin and asphaltene increased,the aromaticity decreased,and the average molecular reduced especially the asphaltene which decreased largely. The molecular energy of as-phaltene increased and resin decreased which showed the asphaltene central aromatic framework were broken. The size of resin and asphaltene decreased,and more aggregation of heavy components dispersed in heavy oil which contribute to the viscosity reduction of extra-heavy oil.