加拿大油砂沥青减压渣油在CO/H2-H2O作用下的热改质特性研究
Partial upgrading of vacuum residue from Canadian oil sand bitumen under CO/H2-H2O
摘要
Abstract
The upgrading of the vacuum residue from Canadian oil sand bitumen was performed in a batch reactor with the syngas ( CO/H2 ) and H2 O. The effect of CO/H2-H2 O for residue upgrading was verified. In the presence of CO/H2-H2 O, the coke induction period is postponed by 3. 5-6. 5 min. When the coke yield is about 0 . 1％, the viscosity reduction efficiency can be raised by 29 . 1％ at 410℃ and even 54 . 6％ at 420℃. The upgrading experiments were also carried out in the presence of N2-H2 O, CO-H2 O, and H2-H2 O, respectively. The results show that the capability to inhibit the coke formation was in the order of H2-H2 O>CO/H2-H2 O > CO-H2 O >N2-H2 O. The impetus of CO/H2-H2 O to BVR upgrading could be attributed to the active hydrogen mainly from H2 , nascent hydrogen by water-gas shift reaction as well as aqua-thermolysis. The thermal conditions such as the pressure of syngas, water content and reaction temperature could influence the coking propensity of BVR under CO/H2-H2 O by affecting the three different attributions. These results indicate that the more accessible and low-cost syngas could provide the necessary hydrogen for BVR upgrading. Water presents a synergism with syngas for further promoting the BVR upgrading process.关键词
油砂沥青/合成气/水热裂解/活泼氢/降黏改质Key words
oil sand bitumen/syngas/aqua-thermolysis/active hydrogen/thermal upgrading分类
能源科技引用本文复制引用
刘贺,王宗贤,赵翔鵾,李玉星,陈坤,郭爱军..加拿大油砂沥青减压渣油在CO/H2-H2O作用下的热改质特性研究[J].燃料化学学报,2018,46(1):45-53,9.基金项目
The project was supported by National Natural Science Foundation of China ( 21776313 ) , the China Postdoctoral Science Foundation (2016M602219 ), Provincial Natural Science Foundation of Shandong ( ZR2017BB021 ), Qingdao Postdoctoral Applied Research Project (2016224), State Key Laboratory of Heavy Oil Processing (SLKZZ-2017003, SLKZZ-2017011), Key Research and Development Plan of Shandong Province (2017GGX70108), Fundamental Research Funds for the Central Universities (Special Projects, 17CX05016), PetroChina Innovation Foundation (2017D-5007-0506), China National Petroleum Corporation (CNPC, PRIKY16066) and Shandong Postdoctoral Funded Project (201702028). 国家自然科学基金(21776313), 中国博士后科学基金资助项目(2016M602219), 山东省自然科学基金博士基金(ZR2017BB021), 青岛市博士后应用研究项目(2016224), 重质油国家重点实验室资助项目(SLKZZ-2017003, SLKZZ-2017011), 山东省重点研发发展计划(2017GGX70108),中央高校基本科研业务费专项资金(科技专项,17CX05016), 中国石油科技创新基金(2017D-5007-0506), 中国石油天然气股份有限公司攻关项目(PRIKY16066)和山东省博士后创新项目专项资金(201702028)资助 （ 21776313 ）
