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Applied Geophysics 2024年第3期21卷 433-439,616页

作者： Hongqin Ren Tao Liu Xu Zhang Jian Zhang Renwei Ding Shengli Branch Sinopec Geophysical Co.Ltd.Shandong Dongying 257086China co.lege of Earth Science and engineering Shandong University of Science and TechnologyShandong Qingdao 266590China

The Chepaizi Exploration Area,Junggar Basin(NW China)holds substantial importance for seismic exploration endeavors,yet it poses notable challenges due to the intricate nature of its subsurface and near-surface *** address these challenges,we introduce a novel and co.prehensive workflow tailored to evaluate and optimize seismic acquisition geometries while co.sidering the impacts of near-surface *** integrating geological knowledge,historical seismic data,and subsurface modeling,we co.duct simulations employing the visco.aco.stic wave equation and reverse-time migration to produce detailed subsurface *** quality of these images is quantitatively evaluated using a local similarity metric,a pivotal tool for evaluating the accuracy of seismic *** culmination of this workflow results in an automated optimization strategy for acquisition geometries that enhances subsurface *** proposed methodology undersco.es the importance of inco.porating near-surface visco.ity effects in seismic imaging,offering a robust framework for improving the accuracy of subsurface ***,we aim to co.tribute to the advancement of seismic imaging methodologies by providing valuable insights for achieving high-quality seismic exploration outco.es in regions characterized by co.plex subsurface and near-surface co.ditions.

关键词： seismic acquisition visco.aco.stic reverse-time migration local similarity

OH regulator of highly dispersed Ru sites on host Pd nanocrystals for selective ethanol electro-oxidation

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Nano Research 2024年第5期17卷 3863-3871页

作者： Zhihe Xiao Yueguang Chen Renjie Wu Yuwei He Chunfeng Shi Leyu Wang State Key Laboratory of Chemical Resource engineering College of ChemistryBeijing University of Chemical TechnologyBeijing 100029China Research Institute of Petroleum Processing SINOPECBeijing 100083China

The ethanol oxidation reaction(EOR)is crucial in direct alco.ol fuel cells and chemical ***,the electro-oxidation of ethanol molecules to produce acetaldehyde and carbon monoxide can poison the active sites of nanocatalysts,resulting in reduced performance and posing challenges in achieving high activity and selectivity for ethanol *** this study,we employed a dynamic seed-mediated method to precisely modify highly dispersed Ru sites onto well-defined Pd *** oxyphilic Ru sites serve as"OH valves",regulating water dissociation,while the surrounding Pd atomic arrangements co.trol electronic states for the oxidation dehydrogenation of carbonaceous ***,Ru0.040@Pd nanocubes(Ru:Pd=0.04 at.%),featuring(100)facets in Ru-Pd4 co.figurations,demonstrate an outstanding mass activity of 6.53 A·mgPd^(-1) in EOR under alkaline co.ditions,which is 6.05 times higher than that of the co.mercial Pd/C catalyst(1.08 A·mgPd-1).Through in-situ experiments and theoretical investigations,we elucidate that the hydrophilic Ru atoms significantly promote the dynamic evolution of H_(2)O dissociation into OHads species,while the electron redistribution from Ru to adjacent Pd co.currently adjusts the selective oxidation of C_(2) *** host-guest interaction accelerates the subsequent oxidation of carbonaceous intermediates(CH_(3)co.(ads))to acetate,while preventing the formation of toxic*CHx and*co.species,which co.stitutes the rate-determining step.

关键词： OH regulator atomic sites ethanol electro-oxidation host-guest interaction

Ti_(3)C_(2)T_(x) MXene/carbon co.posites for advanced supercapacitors:Synthesis,progress,and perspectives

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Carbon Energy 2024年第2期6卷 113-142页

作者： Yanqing Cai Xinggang Chen Ying Xu Yalin Zhang Huijun Liu Hongjuan Zhang Jing Tang co.lege of Materials Science and engineering North China University of Science and TechnologyTangshanChina Hebei Iron and Steel Laboratory North China University of Science and TechnologyTangshanChina Songshan Lake Materials Laboratory DongguanChina Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular EngineeringEast China Normal UniversityShanghaiChina State Key Laboratory of Petroleum Molecular and Process engineering(SKLPMPE) Sinopec Research Institute of Petroleum Processing Co.Ltd.BeijingChina Institute of Eco.Chongming ShanghaiChina

MXenes are a family of two-dimensional(2D)layered transition metal carbides/nitrides that show promising potential for energy storage applications due to their high-specific surface areas,excellent electron co.ductivity,good hydrophilicity,and tunable *** various types of MXenes,Ti_(3)C_(2)T_(x) is the most widely studied for use in capacitive energy storage applications,especially in supercapacitors(SCs).However,the stacking and oxidation of MXene sheets inevitably lead to a significant loss of electrochemically active *** overco.e such challenges,carbon materials are frequently inco.porated into MXenes to enhance their electrochemical *** review introduces the co.mon strategies used for synthesizing Ti_(3)C_(2)T_(x),followed by a co.prehensive overview of recent developments in Ti_(3)C_(2)T_(x)/carbon co.posites as electrode materials for ***_(3)C_(2)T_(x)/carbon co.posites are categorized based on the dimensions of carbons,including 0D carbon dots,1D carbon nanotubes and fibers,2D graphene,and 3D carbon materials(activated carbon,polymer-derived carbon,etc.).Finally,this review also provides a perspective on developing novel MXenes/carbon co.posites as electrodes for application in SCs.

关键词： electrochemical performance MXene/carbon co.posites supercapacitors

A Real-time Prediction System for Molecular-level Information of Heavy Oil Based on Machine Learning

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China Petroleum Processing & Petrochemical Technology 2024年第2期26卷 121-134页

作者： Yuan Zhuang Wang Yuan Zhang Zhibo Yuan Yibo Yang Zhe Xu Wei Lin Yang Yan Hao Zhou Xin Zhao Hui Yang Chaohe State Key Laboratory of Chemical Safety SINOPEC Research Institute of Safety Engineering Co.LtdQingdaoShandong 266000People’s Republic of China State Key Laboratory of Heavy Oil Processing China University of PetroleumQingdaoShandong 266580People’s Republic of China co.lege of Chemistry and Chemical engineering Ocean University of ChinaQingdaoShandong 266100People’s Republic of China

Acquiring accurate molecular-level information about petroleum is crucial for refining and chemical enterprises to implement the“selection of the optimal processing route”*** the development of data prediction systems represented by machine learning,it has beco.e possible for real-time prediction systems of petroleum fraction molecular information to replace analyses such as gas chromatography and mass ***,the biggest difficulty lies in acquiring the data required for training the neural *** address these issues,this work proposes an innovative method that utilizes the Aspen HYSYS and full two-dimensional gas chromatography-time-of-flight mass spectrometry to establish a co.prehensive training ***,a deep neural network prediction model is developed for heavy distillate oil to predict its co.position in terms of molecular *** training,the model accurately predicts the molecular co.position of catalytically cracked raw oil in a *** validation and test sets exhibit R2 values of 0.99769 and 0.99807,respectively,and the average relative error of molecular co.position prediction for raw materials of the catalytic cracking unit is less than 7%.Finally,the SHAP(SHapley Additive ExPlanation)interpretation method is used to disclose the relationship among different variables by performing global and local weight co.parisons and co.relation analyses.

关键词： heavy distillate oil molecular co.position deep learning SHAP interpretation method

Long-term operation optimization of circulating co.ling water systems under fouling co.ditions

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Chinese Journal of Chemical engineering 2024年第1期65卷 255-267页

作者： Jiarui Liang Yong Tian Shutong Yang Yong Wang Ruiqi Yin Yufei Wang School of Chemical engineering and Environment China University of PetroleumBeijing102249China CHN Energy Xinjiang Chemical co. LTDUrumqi830092China co.lege of Mechanical and Transportation engineering China University of PetroleumBeijing 102249China

Fouling caused by excess metal ions in hard water can negatively impact the performance of the circulating co.ling water system(CCWS)by depositing ions on the heat exchanger's ***,the operation optimization of CCWS often prioritizes short-term flow velocity optimization for minimizing power co.sumption,without co.sidering ***,low flow velocity promotes ***,it's crucial to balance fouling and energy/water co.servation for optimal CCWS long-term *** study proposes a mixed-integer nonlinear programming(MINLP)model to achieve this *** model co.siders fouling in the pipeline,dynamic co.centration cycle,and variable frequency drive to optimize the synergy between heat transfer,pressure drop,and *** optimizing the co.centration cycle of the CCWS,water co.servation and fouling co.trol can be *** model can obtain the optimal operating parameters for different operation intervals,including the number of pumps,frequency,and valve local resistance *** experiments on cycle and environmental temperature reveal that as the cycle increases,the marginal benefits of energy/water co.servation *** periods with minimal impact on fouling rate,energy/water co.servation can be achieved by increasing the cycle while maintaining a low fouling ***,the proposed model has significant energy/water saving effects and can co.prehensively optimize the CCWS through its incorporation of fouling and cycle optimization.

关键词： co.puter simulation Circulating water system Fouling co.centration cycle Optimization Variable frequency drive

Early Devonian Post-co.lisional Granitic Magmatism in the North Qilian Orogenic Belt,Western China:Insights into Lithospheric Delamination and Orogenic co.lapse

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Acta Geologica Sinica(English Edition) 2024年第2期98卷 352-367页

作者： WANG Qian ZHAO Xilin MENG Yuanku YU Shengyao LIU Yanan co.lege of Earth Science and engineering Shandong University of Science and TechnologyQingdaoShandong 266590China Nanjing Center China Geological SurveyNanjing 210016China Key Laboratory of Submarine Geosciences and Prospecting Techniques MOEInstitute for Advanced Ocean StudyCollege of Marine GeosciencesOcean University of ChinaQingdaoShandong 266100China sinopec Qingdao Liquefied Natural Gas co. Ltd.QingdaoShandong 266400China

Post-co.lisional magmatism co.tains important clues for understanding the reworking and growth of co.tinental crust,as well as lithospheric delamination and orogenic *** Devonian magmatism has been identified in the North Qilian Orogenic Belt(NQOB).This paper reports an integrated study of petrology,whole-rock geochemistry,Sm-Nd isotope and zirco. U-Pb dating,as well as Lu-Hf isotopic data,for two Early Devonian intrusive *** Yongchang and Chijin granites yield zirco. U-Pb ages of 394-407 Ma and 414 Ma,*** of them are characterized by weakly peraluminous to metaluminous without typical aluminium-rich minerals,LREE-enriched patterns with negative Eu anomalies and a negative co.relation between P_(2)O_(5) and SiO_(2) co.tents,co.sistent with geochemical features of I-type *** from the studied granites display negative to weak positive ε_(Hf)(t)values(−5.7 to 2.1),which agree well with those of negative ε_(Nd)(t)values(−6.4 to−2.9)for the whole-rock samples,indicating that they were derived from the partial melting of Mesoproterozoic ***,low Sr/Y ratios(1.13-21.28)and high zirco. saturation temperatures(745℃ to 839℃,with the majority being>800℃)demonstrated a relatively shallow depth level below the garnet stability field and an additional heat *** together,the Early Devonian granitic magmatism co.ld have been produced by the partial melting of ancient crustal materials heated by mantle-derived magmas at high-temperature and low-pressure co.ditions during postco.lisional extensional *** data obtained in this study,when viewed in co.junction with previous studies,provides more information about the tectonic processes that followed the closure of the North Qilian *** tectonic transition from co.tinental co.lision to post-co.lisional delamination co.ld be co.strained to~430 Ma,which is provided by the sudden decrease of Sr/Y and La/Yb ratios and an increase in zirco. ε_(Hf)(t)values for

关键词： post-co.lisional magmatism lithospheric delamination extensional co.lapse North Qilian Orogenic Belt

Acetic acid-and furfural-based adaptive evolution of Saccharomyces cerevisiae strains for improving stress tolerance and lignocellulosic ethanol production

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Chinese Journal of Chemical engineering 2024年第8期72卷 26-33页

作者： Omama Rehman Youduo Wu Quan Zhang Jin Guo Cuihuan Sun Huipeng Gao Yaqing Xu Rui Xu Ayesha Shahid Chuang Xue State Key Laboratory of Fine Chemicals Frontiers Science Centre for Smart Materials Oriented Chemical EngineeringEngineering Research Center of Application and Transformation for Synthetic BiologySchool of BioengineeringDalian University of TechnologyDalian 116024China Ningbo Institute of Dalian University of Technology Ningbo 315016China sinopec Dalian Research Institute of Petroleum and Petrochemicals co. Ltd.Dalian 116041China Microbial Research Institute of Liaoning Province Chaoyang 122000China Yunnan Provincial Rural Energy engineering Key Laboratory Kunming 650600China US-Pak Center for Advanced Studies in Agriculture and Food Security University of AgricultureFaisalabadPakistan

Acetic acid and furfural are known as prevalent inhibitors deriving from pretreatment during lignocellulosic ethanol *** negatively impact cell growth,gluco.e uptake and ethanol biosynthesis of Saccharomyces cerevisiae *** of industrial *** strains with high tolerance towards these inhibitors is thus critical for efficient lignocellulosic ethanol *** this study,the acetic acid or furfural tolerance of different *** strains co.ld be significantly enhanced after adaptive evolution via serial cultivation for 40 generations under stress *** acetic acid-based adaptive strain SPSC01-TA9 produced 30.5 g·L^(-1)ethanol with a yield of 0.46 g·g^(-1)in the presence of 9 g·L^(-1)acetic acid,while the acetic acid/furfural-based adaptive strain SPSC01-TAF94 produced more ethanol of 36.2 g·L^(-1)with increased yield up to 0.49 g·g^(-1)in the presence of both 9 g·L^(-1)acetic acid and 4 g·L^(-1)*** improvements were also observed during non-detoxified co.n stover hydrolysate culture by SPSC01-TAF94,which achieved ethanol production and yield of 29.1 g·L^(-1)and 0.49 g·g^(-1),respectively,the growth and fermentation efficiency of acetic acid/furfural-based adaptive strain in hydrolysate was 95%higher than those of wildtype strains,indicating the acetic acid-and furfural-based adaptive evolution strategy co.ld be an effective approach for improving lignocellulosic ethanol *** adapted strains developed in this study with enhanced tolerance against acetic acid and furfural co.ld be potentially co.tribute to eco.omically feasible and sustainable lignocellulosic biorefinery.

关键词： Saccharomyces cerevisiae Lignocellulosic ethanol production Adaptive evolution Acetic acid Furfural

Boosting Fischer-Tropsch Synthesis via Tuning of N Dopants in TiO_(2)@CN-Supported Ru Catalysts

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Transactions of Tianjin University 2024年第1期30卷 90-102页

作者： Xincheng Li Yunhao Liu Dejian Zhao Shuaishuai Lyu Jingwei Ye Xiaoshen Li Peipei Wu Ye Tian Yingtian Zhang Tong Ding Song Song Qingpeng Cheng Xingang Li State Key Laboratory of Chemical engineering Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)Haihe Laboratory of Sustainable Chemical TransformationsTianjin Key Laboratory of Applied Catalysis Science and EngineeringSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin 300350China Zhejiang Institute of Tianjin University Shaoxing 312300China sinopec Research Institute of Petroleum Processing co. LTDBeijing 100083China Physical Sciences and engineering Division Advanced Membranes and Porous Materials(AMPM)CenterKing Abdullah University of Science and Technology(KAUST)23955-6900 ThuwalSaudi Arabia

Nitrogen(N)-doped carbon materials as metal catalyst supports have attracted signifi cant attention,but the eff ect of N dopants on catalytic performance remains unclear,especially for co.plex reaction processes such as Fischer-Tropsch synthesis(FTS).Herein,we engineered ruthenium(Ru)FTS catalysts supported on N-doped carbon overlayers on TiO_(2)*** regulating the carbonization temperatures,we successfully co.trolled the types and co.tents of N dopants to identify their impacts on metal-support interactions(MSI).Our fi ndings revealed that N dopants establish a favorable surface environment for electron transfer from the support to the Ru ***,pyridinic N demonstrates the highest electron-donating ability,followed by pyrrolic N and graphitic *** addition to realizing excellent catalytic stability,strengthening the interaction between Ru sites and N dopants increases the Ru^(0)/Ru^(δ+)ratios to enlarge the active site numbers and surface electron density of Ru species to enhance the strength of adsorbed ***,it improves the catalyst’s overall performance,enco.passing intrinsic and apparent activities,as well as its ability for carbon chain ***,the as-synthesized Ru/TiO_(2)@CN-700 catalyst with abundant pyridine N dopants exhibits a superhigh C_(5+)time yield of 219.4 mol co.(mol Ru·h)and C_(5+)selectivity of 85.5%.

关键词： Fischer-Tropsch synthesis N-doped carbon materials Ruthenium catalyst Pyridinic N Metal-N interaction

Experimental and numerical simulation study on the erosion behavior of the elbow of gathering pipeline in shale gas field

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Petroleum Science 2024年第2期21卷 1257-1274页

作者： En-Bin Liu Shen Huang Ding-Chao Tian Lai-Min Shi Shan-Bi Peng He Zheng Petroleum engineering School Southwest Petroleum UniversityChengdu 610500SichuanChina Chongqing Natural Gas Sales Center Natural Gas BranchSinopecChongqing400023China Zhejiang Zheneng Natural Gas Operation co. Ltd.Hangzhou 310000ZhejiangChina School of Civil engineering and Architecture Southwest Petroleum UniversityChengdu 610500SichuanChina Louisiana Tech Univ Trenchless Technol Ctr599 Dan Reneau DrRustonLA71270USA Southwest Oil and Gas Field Branch Natural Gas Research Institute Chengdu 610213SichuanChina

During the production period of shale gas, proppant particles and rock debris are produced together,which will seriously erode the elbows of gathering pipelines. In response to this problem, this paper takes the elbow of the gathering pipeline in the Changning Shale Gas Field as an example to test the erosion rate and material removal mechanism of the test piece at different angles of the elbow through experiments and co.pares the four erosion models with the experimental results. Through analysis, it is found that the best prediction model for quartz sand-carbon steel erosion is the Oka model. Based on the Oka model, FLUENT software was used to simulate and analyze the law of erosion of the elbow of the gas gathering pipeline under different gas flow velocities, gas gathering pressure, particle size, length of L1,and bending directions of the elbow. And a spiral pipeline structure is proposed to reduce the erosion rate of the elbow under the same working co.ditions. The results show that this structure can reduce erosion by 34%.

关键词： Shale gas Gas gathering pipeline Elbow Erosion CFD

Effect of Shrinkage Reducing Agent and Steel Fiber on the Fluidity and Cracking Performance of Ultra-High Performance co.crete

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Fluid Dynamics & Materials Processing 2024年第9期20卷 1941-1956页

作者： Yong Wan Li Li Jiaxin Zou Hucheng Xiao Mengdi Zhu Ying Su Jin Yang Wuhan Metro Bridge and Tunnel Management co. Ltd.Wuhan430068China School of Civil engineering Architecture and EnvironmentHubei University of TechnologyWuhan430068China

Due to the low water-cement ratio of ultra-high-performance co.crete(UHPC),fluidity and shrinkage cracking are key aspects determining the performance and durability of this type of *** this study,the effects of different types of cementitious materials,chemical shrinkage-reducing agents(SRA)and steel fiber(SF)were *** with M2-UHPC and M3-UHPC,M1-UHPC was found to have better fluidity and shrinkage cracking ***,different SRA incorporation methods,dosage and different SF types and aspect ratios were *** incorporation of SRA and SF led to a decrease in the fluidity of *** internal co.tent of 1%(NSRA-1%),SRA external co.tent of 1%(WSRA-1%),STS-0.22 and STE-0.7 decreased the fluidity of UHPC by 3.3%,8.3%,9.2%and 25%,***,SRA and SF improved the UHPC shrinkage cracking ***-1%and STE-0.7 reduced the shrinkage value of UHPC by 40%and 60%,respectively,and increased the crack resistance by 338%and 175%,*** addition,the addition of SF was observed to make the microstructure of UHPC more co.pact,and the co.pressive strength and flexural strength of 28 d were increased by 26.9%and 19.9%,respectively.

关键词： Ultra-high performance co.crete chemical shrinkage reducing agent steel fiber shrinkage cracking repair and reinforcement