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兖矿油页岩热解特性及热解动力学

化学工程 2024年第9期52卷 56-60页

作者：李思佳马跃李术元岳长涛中国石油大学(北京)理学院北京102249

利用DSC(热重差热扫描仪)研究兖矿油页岩在不同升温速率5、10、15、20、25、30℃/min下的热质量损失行为,对比分析Coats-Redfern模型、DAEM模型(分布活化能模型)、微分法模型和最大热解速率法4种动力学模型。结果表明兖矿油页岩热解可分... 详细信息

利用DSC(热重差热扫描仪)研究兖矿油页岩在不同升温速率5、10、15、20、25、30℃/min下的热质量损失行为,对比分析Coats-Redfern模型、DAEM模型(分布活化能模型)、微分法模型和最大热解速率法4种动力学模型。结果表明兖矿油页岩热解可分为3个阶段:20—200℃,表面水被脱除;200—400℃小分子有机物挥发,出现弱键的断裂,如C—O键和C—S键等;400—600℃出现最大质量损失峰,主要在该温度区域产生油气。Coats-Redfern模型求得的表现活化能E最低为48.33 kJ/mol,最大热解速率法求得的E最高为152.19 kJ/mol。DAEM模型、微分法模型的计算结果处于中间水平,DAEM模型的计算结果为不同转化率下所对应的活化能,其数值随转化率的增大而增大,更符合油页岩热解的实际情况,对于进一步研究油页岩有机质的化学结构特征具有一定的借鉴意义。

关键词：油页岩热解热重分析动力学活化能

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聚苯乙烯催化裂解催化剂的制备

塑料 2024年第5期53卷 159-165页

作者：张泽凯马跃王菁向卿谊岳长涛中国石油大学(北京)理学院北京102249

目前,全球对塑料制品的依赖性逐渐增大,但是,由于塑料制品的使用周期较短,不及时回收处理,能造成较大的资源浪费和环境污染。聚苯乙烯在人们的日常生产生活中使用频率较高,具有一定的回收利用价值。在目前已有的聚苯乙烯处理回收方法中... 详细信息

目前,全球对塑料制品的依赖性逐渐增大,但是,由于塑料制品的使用周期较短,不及时回收处理,能造成较大的资源浪费和环境污染。聚苯乙烯在人们的日常生产生活中使用频率较高,具有一定的回收利用价值。在目前已有的聚苯乙烯处理回收方法中,热裂解技术能够将聚苯乙烯转化为分子量较低的油气,作为补充燃料及化工原料使用,但是,产物的选择性较差,价值较低。基于热裂解技术,加入催化剂,能有效地改善产物的分布,得到高附加值产品。催化热解催化剂主要分为酸性及碱性2类,目前较常见的聚苯乙烯催化热解催化剂为固体碱催化剂,反应遵循碳负离子机理,能有效地降低乙苯产率,提高苯乙烯及二苯基烷烃的产率。

关键词：废旧塑料聚苯乙烯金属氧化负载催化剂过渡金属氧化物催化裂解

Study of simulation experiments on the TSR system and its effect on the natural gas destruction

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Science China Earth Sciences 2005年第8期48卷 1197-1202页

作者： yue changtao LI Shuyuan DING Kangle ZHONG Ningning State Key Lab of Heavy Oil Processing University of Petroleum Beijing 102249 China State Key Lab of Heavy Oil Processing University of Petroleum Beijing 102249 China State Key Lab of Heavy Oil Processing University of Petroleum Beijing 102249 China State Key Lab of Heavy Oil Processing University of Petroleum Beijing 102249 China

The TSR process may be one of the reasons to result in the natural gas destruction in deep carbonate reservoirs. The work on this field has been the subject of much research in recent years. In this paper, thermal simulation experiments on the reaction of CH4-CaSO4 were carried out using autoclave at high temperature and high pressure. The products were charac-terized by some advanced analytical methods. The thermodynamics and kinetics were discussed and the reaction mechanism was investigated tentatively. It is found that the reaction can pro-ceed spontaneously to produce H2S, H2O and CaCO3 as the main products at the temperature range of 550―700℃ . The activation energy and geological reaction rate calculated from the ki-netic model can be compared with those from previous work. The results obtained in this paper can provide important information on the explanation of geochemical depth limit for natural gas and on the exploration of gas reservoirs.

关键词： natural gas destruction, TSR, simulation experiments, kinetics.

Study of CH_(4)and CO_(2)competitive adsorption on shale in Yibin,Sichuan Province of China

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Carbon Resources Conversion 2019年第1期2卷 35-42页

作者： yue Ma changtao yue Shuyuan Li Xinyi Xu yue Niu State Key Laboratory of Heavy Oil Processing College of ScienceChina University of PetroleumBeijing 102249China

Shale gas is an unconventional gas source with substantial development *** this study,Longmaxi Formation shale from the Silurian system in Yibin,Sichuan Province was collected for characterizing total organic carbon(TOC),clay mineral content,and other reservoir *** pore structure of shale was analyzed by field-emission scanning electron microscopy and low-temperature N_(2) adsorption–desorption *** adsorption experiments for CH_(4)and CO_(2)mixtures in shale samples were *** second Virial coefficient was used to calculate for the compressibility factor of the gas *** influencing factors of gas adsorption capacity of shale were ***,the CH_(4)and CO_(2)adsorption capacities and selection of shale samples were *** low pressure,the total gas mixture capacity of shale samples was positively correlated with *** the pressure increased to a certain extent,the growth trend of gas mixture adsorption capacity of shale samples *** mixed gas adsorption volume is high at 50℃ for all the *** the same temperature and pressure,the CO_(2)adsorption of shale samples is higher than the CH_(4)*** competitive adsorption,shale prefers to adsorb CO_(2).Therefore,CO_(2)is easier to be adsorbed by shale and this causes CH_(4)to be released from the adsorption site.

关键词： CH_(4) CO_(2) Competitive adsorption Second Virial coefficient

Pyrolysis characteristics of a North Korean oil shale

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Petroleum Science 2014年第3期11卷 432-438页

作者： Wang Wei Li Shuyuan Li Linyue Ma yue yue changtao He Jilai State Key Laboratory of Heavy Oil Processing China University of Petroleum Shandong Energy Long-kou Mining Group Co. Ltd.

Pyrolysis characteristics of a North Korean oil shale and its pyrolysates were investigated in this paper. The pyrolysis experiments were conducted below 600 ℃ at a heating rate of 10, 15, 20 and 25 ℃/min, respectively. The kinetics data were calculated using both integral and differential methods with the assumption of first order kinetics. The results show that the averaged oil content of the North Korean oil shale is about 12.1 wt% and its heat value is 13,400 kJ/kg. The oil yields at different retorting temperatures show that the higher the retorting temperature the greater the oil and retorting gas yields. The optimal retorting temperature for the North Korean oil shale is about 500 ℃. The properties of the North Korean shale oil including density, viscosity, flash point and freezing point are found to be relatively low compared with those of shale oil from FuShun, China. The gasoline fraction, diesel fraction and heavy oil fraction account for 11.5 wt%, 41.5 wt% and 47 wt%, respectively. The major pyrolysis gases are ca4 （the most abundant）, H2, CO2, H2S, CO, and C2-C5 hydrocarbons. The heat value of retorting gas is more than 900 kJ/mol, and the retorting gas has high sulfur content.

关键词： Shale oil pyrolysis properties oil shale retorting kinetics

Simulation experiments on the reaction system of CH_4-MgSO_4-H_2O

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Chinese Science Bulletin 2008年第7期53卷 1071-1078页

作者： DING KangLe LI ShuYuan yue changtao ZHONG NingNing State Key Laboratory of Heavy Oil Processing China University of Petroleum Beijing 102249 China Faculty of Natural Resource and Information Technology China University of Petroleum Beijing 102249 China

H2S-rich gas in carbonate reservoirs is usually attributed to thermochemical sulfate reduction (TSR). In this paper, thermal simulation experiments on the reaction system of CH4-MgSO4-H2O were carried out using autoclave at 425℃―525℃. The threshold temperature for initiating TSR is much lower than our previous studies (550 ℃ ). Properties of the reaction products were analyzed by microcoulometry, gas-chromatography (GC), Fourier transform-infrared spectrometry (FT-IR) and X-ray diffraction (XRD) methods. Thermodynamics and reaction kinetics of TSR processes were investigated on the basis of the experimental data. The results show that thermochemical reduction of magnesium sulfate with methane can proceed spontaneously to produce magnesium oxide, hydrogen sulfur, and carbon diox-ide as the main products, and high temperature is thermodynamically favorable to the reaction. Ac-cording to the reaction model, the calculated activation energy of TSR is 101.894 kJ/mol, which is lower than that by most previous studies. Mg2+ may have played a role of catalytic action in the process of TSR. The elementary steps of TSR and reaction mechanism were discussed tentatively. The study can provide important information on the explanation of geochemical depth limit for natural gas and on the generation of high H2S gas in deep carbonates reservoirs.

关键词：反作用系统 TSR 热化学化学反应

Heat Transfer and Kinetics Study of Moroccan Oil Shale Pyrolysis Process

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China Petroleum Processing & Petrochemical Technology 2021年第2期23卷 28-33页

作者： Zhan Chenyu Ma yue yue changtao Li Shuyuan Tang Xun Wen Hua China University of Petroleum Beijing 102249 Beijing Guodian Longyuan Environmental Protection Engineering Co. Ltd.Beijing 102249

The basic properties of Moroccan oil shale were analyzed in this *** experiments at different heating rates were carried out by *** results show that the pyrolysis process of Moroccan oil shale can be divided into three steps.A shrink-nuclear model that considers the internal heat transfer of particles was established,which can better simulate the pyrolysis process of oil *** pyrolysis kinetic parameters of Moroccan oil shale were calculated based on heat transfer data and basic physical *** results show that the apparent activation energy of the reaction is around 120 kJ/mol,and the apparent frequency factor is around 2×10^(14) mol/(s•m^(2)).

关键词： kinetics oil shale pyrolysis shrink-nuclear model

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稠油污水处理技术研究进展

油气田环境保护 2024年第1期34卷 1-6页

作者：张钰琪仝坤聂凡岳长涛谢加才吴宣章马跃中国石油集团安全环保技术研究院有限公司中国石油大学(北京) 中国石油辽河油田分公司

针对稠油污水来源广、成分复杂、污染物浓度高、油水密度差小、毒性大、可生化性差、处理成本高等问题,梳理了稠油污水的来源、成分、特点及处理难点,总结了稠油污水处理中调质破乳、絮凝/气浮、生物降解、氧化或吸附四级处理技术的进展... 详细信息

针对稠油污水来源广、成分复杂、污染物浓度高、油水密度差小、毒性大、可生化性差、处理成本高等问题,梳理了稠油污水的来源、成分、特点及处理难点,总结了稠油污水处理中调质破乳、絮凝/气浮、生物降解、氧化或吸附四级处理技术的进展,对比了各种方法的优缺点。并提出缩短工艺流程、采用物理法与化学法相结合工艺以减少新污染引入,采用靶向氧化技术去除生物毒性、难降解有机物以提高污水可生化性,增强生物处理以提高处理效能等建议,以期为稠油污水绿色、低碳、低成本、高效处理提供借鉴。

关键词：稠油污水调质破乳絮凝/气浮生物降解氧化吸附

Study of a mass transfer-reaction model for SO_2 absorption process using LAS/H_2SO_4 solution

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Petroleum Science 2010年第3期7卷 397-402页

作者： yue changtao Li Shuyuan Chen Weihong Guo Shaohui Yang Yuhua Sha Yingxun State Key Laboratory of Heavy Oil Processing China University of Petroleum Beijing 102249 China Luoyang Petrochemical Engineering Corporation of SINOPEC Luoyang 471003 China

A regenerative absorption process for removal of SOx from FCC off-gas using LAS/ H2SO4 solution as absorbant was studied and pilot-plant experiments were carried out. A mass transfer- reaction model for the SO2 absorption process was established based on pilot-plant experiments, and the concentration distribution of components in the liquid film, and the partial pressure and mass transfer rate of SO2 along the height of the absorption tower, was calculated from this model. The numerical simulation results were compared with the experimental results and proved that the model can be used for describing the SO2 absorption process.

关键词： Regenerative absorption process SOx cleanup LAS/H2SO4 solution mass transfer-reactionmodel