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330 MW锅炉空气预热器隔仓板与元件间的缝隙对排烟温度的影响分析

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发电设备 2024年第3期38卷 157-160页

作者：刘朝成黄雪飞东方电气集团东方锅炉股份有限公司成都611731

为了分析回转式空气预热器隔仓板与传热元件之间的缝隙对排烟温度的影响,对某330 MW电站锅炉回转式空气预热器建立等阻力及等流速2种模型,计算不同隔仓板与元件间的缝隙下的排烟温度,得出了不同缝隙下的排烟温度。结果表明:缝隙小于6 m... 详细信息

为了分析回转式空气预热器隔仓板与传热元件之间的缝隙对排烟温度的影响,对某330 MW电站锅炉回转式空气预热器建立等阻力及等流速2种模型,计算不同隔仓板与元件间的缝隙下的排烟温度,得出了不同缝隙下的排烟温度。结果表明:缝隙小于6 mm时对排烟温度的影响较小,缝隙大于12 mm时对排烟温度的影响较大。通过计算结果与实际运行参数的对比,得出排烟温度的最大相对偏差为2.73%,验证了计算方法的准确性。

关键词：锅炉回转式空气预热器换热元件缝隙排烟温度

内蒙古巴音戈壁盆地塔木素碱矿Na-碳酸盐成因模式

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地球科学 2024年第4期49卷 1207-1223页

作者：戴朝成钟炽涛刘晓东向龙许亚鑫东华理工大学地球科学学院江西南昌330013 东华理工大学核资源与环境重点实验室江西南昌330013

内蒙古巴音戈壁盆地哈日凹陷下白垩统巴音戈壁组沉积时期为典型的碳酸盐型碱湖,盆地咸化过程中发育大量的Na-碳酸盐类矿物.通过对巴音戈壁组碱矿层中似层状、斑点状和脉状Na-碳酸盐矿物开展了电子探针、X衍射、碳氧同位素和激光拉曼光... 详细信息

内蒙古巴音戈壁盆地哈日凹陷下白垩统巴音戈壁组沉积时期为典型的碳酸盐型碱湖,盆地咸化过程中发育大量的Na-碳酸盐类矿物.通过对巴音戈壁组碱矿层中似层状、斑点状和脉状Na-碳酸盐矿物开展了电子探针、X衍射、碳氧同位素和激光拉曼光谱等分析,结果表明碱矿层中Na-碳酸盐矿物主要为天然碱、苏打石、碳钠钙石、碳钠镁石和磷碳镁钠石.除Na-碳酸盐外,岩石中含少量黄铁矿、钠型菱沸石、硅硼钠石和钠长石等热液矿物.碳、氧同位素研究结果表明巴音戈壁盆地下白垩统碱矿层形成于封闭的碱湖环境,碳酸盐矿物形成温度为34~80℃(平均值57℃),受热水喷流沉积作用和蒸发作用双重控制,碱矿层中硅酸盐矿物首先形成,然后形成白云石和方解石,在Ca^(2+)、Mg^(2+)消耗殆尽后,天然碱和苏打石发生沉淀,由于热水带来充足的Na^(+),前期形成白云石和方解石发生交代作用形成碳钠钙石和碳钠镁石.在矿物学和地球化学综合分析基础上,建立了热水喷流和蒸发沉积双重控制下的碱湖Na-碳酸盐岩沉积模式,以期为碱矿勘查提供新的思路.

关键词：巴音戈壁盆地巴音戈壁组碱矿 Na-碳酸盐成因模式矿床学

Enhanced activity of ZnS(111) by N/Cu co-doping:Accelerated degradation of organic pollutants under visible light

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Journal of Environmental Sciences 2023年第3期125卷 244-257页

作者： Guofei Jiang Benjie Zhu Junzhi Sun Fang liu Yongqiang Wang chaocheng Zhao College of Chemical Engineering China University of PetroleumQingdao 266580China State Key Laboratory of Petroleum Pollution Control Beijing 102206China State Key Laboratory of Heavy Oil Processing China University of PetroleumQingdao 266580China

High-efficiency photocatalysts are of great significance for the application of photocatalytic technology in water *** this study,N/Cu co-doped ZnS nanosphere photocatalys(N/Cu-ZnS) is synthesized by a hydrothermal method for the first *** doping,the tex ture of nanosphere becomes loose,the nanometer diameter is reduced,making the specific surface area of catalyst increased from 34.73 to 101.59 m^(2)/*** characterization results show that more ZnS (111) crystal planes are exposed by N/Cu co-doping;the calculations of density functional theory show that N/Cu co-doping can increase the catalytic activity of the ZnS (111) crystal plane,enhance the adsorption capacity of (111) crystal plane to O_(2)and promote the generation of·O_(2)-.The energy levels of the introduced impurities can be hybridized with the energy levels of S and Zn at the top of valence band and the bottom o conduction band,which makes the band gap narrower,thus enhancing the absorption o visible *** with pure ZnS,the degradation rates of 2,4-dichlorophenol (2,4-DCP and tetracycline (TC) by N/Cu-ZnS under visible light (>420 nm) are increased by 83.7 and51 times,*** this research,a promising photocatalyst for photocatalytic degra dation of organic pollutants in wastewater is provided.

关键词： Catalytic degradation of visible light N/Cu co-doping ZnS(111) 2,4-Dichlorophenol Tetracycline

改性微孔-介孔多级孔碳材料的制备及其甲苯吸附性能

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石油学报（石油加工） 2016年第6期32卷 1090-1098页

作者：闫茜刘芳高雅樊丰涛段成龙赵朝成孙娟刘春爽中国石油大学化学工程学院山东青岛266555 中国石化青岛安全工程研究院环境保护研究室山东青岛266071

为寻求高效有机废气吸附剂,选取石油化工行业特征污染物甲苯为研究对象,以MCM-41分子筛作为模板,制备大比表面积微孔-介孔多级孔碳材料。采用硝酸改性,分别考察了硝酸浓度、改性时间、改性温度对改性材料甲苯吸附性能的影响,并采用正交... 详细信息

为寻求高效有机废气吸附剂,选取石油化工行业特征污染物甲苯为研究对象,以MCM-41分子筛作为模板,制备大比表面积微孔-介孔多级孔碳材料。采用硝酸改性,分别考察了硝酸浓度、改性时间、改性温度对改性材料甲苯吸附性能的影响,并采用正交实验确定最佳改性条件。结果表明,合成微孔-介孔多级孔碳材料比表面积高达1104.08m^2/g,平均孔容为0.52cm^3/g,对模拟甲苯有机废气饱和吸附量可达0.107g/g;硝酸改性后,微孔-介孔多级孔碳材料甲苯吸附性能显著提高。最优的制备条件为硝酸质量分数20%、改性时间10h、改性温度60℃。在此条件下制备的硝酸改性微孔-介孔多级孔碳材料的甲苯饱和吸附量可达0.687g/g。

关键词：微孔-介孔多级孔碳材料硝酸改性甲苯吸附石油化工行业

基于ORB-SLAM3的多旋翼室内定位方法研究

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中国高新科技 2024年第14期 35-38页

作者：井济民刘佳兴张超程中国兵器工业第二〇八研究所北京102202

多旋翼无人机作为最常见的空中机器人,在电力巡检、气象探测、公路巡视、灾后救援、航拍等诸多领域发挥着重要的作用。在室内GNSS信号拒止环境中,基于视觉或激光雷达前端的同时定位与建图(SLAM)方法的实时定位方法越来越受到关注。文章... 详细信息

多旋翼无人机作为最常见的空中机器人,在电力巡检、气象探测、公路巡视、灾后救援、航拍等诸多领域发挥着重要的作用。在室内GNSS信号拒止环境中,基于视觉或激光雷达前端的同时定位与建图(SLAM)方法的实时定位方法越来越受到关注。文章利用数据集验证了紧耦合的ORB-SLAM 3双目/IMU算法在不同场景、不同光照以及不同运动状态下无人机的定位精度以及鲁棒性。实验表明,算法可实现厘米级的全局定位精度,并且在快速运动导致的图像模糊的情况下,仍能保持精确地跟踪,具有较好的鲁棒性。

关键词：多旋翼同时定位和建图 ORB-SLAM3

氮改性介孔碳的制备及其对水中壬基酚聚氧乙烯醚的吸附

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石油学报（石油加工） 2017年第3期33卷 471-479页

作者：张双刘芳李佳蔓张春艳高雅赵朝成孙娟刘春爽中国石油大学化学工程学院山东青岛266555

以软模板法合成介孔碳(MC),添加三聚氰胺为改性剂合成氮改性介孔碳(NMC),并进行N2吸-脱附、TEM和FT-IR表征,同时考察NMC和MC对水中壬基酚聚氧乙烯醚(NPEO10)的吸附性能。结果表明,NMC和MC的比表面积分别为579.6m^2/g和687.8m^2/g。吸附... 详细信息

以软模板法合成介孔碳(MC),添加三聚氰胺为改性剂合成氮改性介孔碳(NMC),并进行N2吸-脱附、TEM和FT-IR表征,同时考察NMC和MC对水中壬基酚聚氧乙烯醚(NPEO10)的吸附性能。结果表明,NMC和MC的比表面积分别为579.6m^2/g和687.8m^2/g。吸附过程符合准二级动力学模型,吸附行为遵循Freundlich等温模型,为优惠吸附。吸附过程为可自发进行的放热反应,无化学键等强键作用,主要以物理吸附为主。吸附饱和后的NMC和MC经5次循环/再生后对NPEO10的去除率均在60%以上。与活性炭(AC)相比,NMC和MC的吸附效果更优越。

关键词：介孔碳氮改性介孔碳吸附壬基酚聚氧乙烯醚循环再生

Authigenic silica in continental lacustrine shale and its hydrocarbon significance

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Petroleum Exploration and Development 2022年第5期49卷 1033-1045页

作者： BAI Bin DAI chaocheng HOU Xiulin liu Xianyang WANG Rui YANG Liang LI Shixiang HE Junling DONG Ruojing PetroChina Research Institute of Petroleum Exploration&Development Beijing 100083China School of Earth Sciences East China University of TechnologyNanchang 330000China Exploration and Development Research Institute of PetroChina Changqing Oilfield Company Xi'an 710018China PetroChina Daqing Oilfield Company Daqing 163453China Exploration and Development Research Institute of PetroChina Jilin Oilfield Company Songyuan 138099China

Taking lake basin shales of the Triassic Yanchang Formation in the Ordos Basin,NW China and the Cretaceous Qingshankou Formation in the Songliao Basin,NE China as research objects,the characteristics and origins of different types of silica in the shales have been studied by means of core observation,thin section identification,cathodoluminescence,X-ray diffraction analysis,scanning electron microscope(SEM),electron probe and rock *** results shows that the origins of silica include felsic mineral dissolution,tuffite devitrification,clay mineral transformation and siliceous mineral *** silica formed by feldspar dissolution commonly appears as spots and veins,with low degree of crystallization,and is largely aqueous opal mineral,with an average Si O2 content of 67.2%.Silica formed by devitrification of tuffite mainly occurs in two forms,amorphous silica and authigenic quartz with better crystal *** authigenic silica formed during the transformation of clay minerals is embedded in the clay minerals in the form of micron-scale plates and small flakes,or mixed with clay minerals in a dispersed *** authigenic quartz formed by siliceous mineral metasomatism is in better angular crystal shape,and has an average Si O2 content of 87%.The authigenic siliceous mineral content is positively correlated with the content of terrigenous felsic *** pressure solution of felsic minerals is the main source of authigenic siliceous minerals,followed by the transformation of clay minerals,and the organic matter has some boost on the formation of authigenic *** authigenic siliceous materials of different origins have different geological characteristics and occurrence states from terrigenous quartz,which would affect the storage performance,seepage capacity and fracturing effect of continental *** the organic-rich shale has high silica content,different from terrigenous quartz,authigenic silica in this kind of shale mostly float

关键词： continental lake basin organic-rich shale authigenic quartz Qingshankou Formation Yanchang Formation Ordos Basin Songliao Basin

Investigation of Nitrite Production Pathway in Integrated Partial Denitrification/Anammox Process via Isotope Labelling Technique and the Relevant Microbial Communities

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China Petroleum Processing & Petrochemical Technology 2022年第1期24卷 129-134页

作者： Li Yanzhe Gai Jianing Zhang Xiaofei Zhao dongfeng Guo Yadong Yu Gengxing Zhao chaocheng liu Fang Zhao Ruiyu liu Chunshuang College of Chemical Engineering China University of PetroleumQingdao 266580 Research Institute of Safety and Environmental Technology Beijing 102206 Harbin Jianshi Technology Co. LtdHarbin 150040

In this study,the nitrogen removal performance of partial denitrificaiton/anammox(PDA)process was investigated by using an UASB *** total nitrogen(TN)removal efficiency(91.97%)was achieved at an influent nitrogen loading rate of 0.64 kg/(m3·d).Anammox bacteria did execute the function of converting nitrate to nitrite in PDA system according to ^(15)N isotope labeling experiments and the contribution was approximately 36.3%.Candidatus_Brocadia,Candidatus_Kuenenia and Thauera were functional strains for anammox and denitrification process,*** and Candidatus_Brocadia were more important for TN removal at high loading rates(0.64 kg/(m3·d)).This result can provide a theoretical and technical foundation for the application of the PDA process.

关键词： partial-denitrification anammox 15N isotope labeling experiments biological nitrogen removal

Effect of calcination process on performance of 3DOM CeMnO3 catalysts

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Journal of Rare Earths 2021年第9期39卷 1073-1081页

作者： Xin liu Xinyi Lv Yongqiang Wang chaocheng Zhao Fang liu College of Chemical Engineering China University of Petroleum(East China)Qingdao 266580China State Key Laboratory of Petroleum Pollution Control China University of Petroleum(East China)Qingdao 266580China

A series of 3DOM CeMnO3 perovskite catalysts were prepared by poly(methyl methacrylate)hardtemplating-excessive impregnation method at calcination temperature of x℃(x=600,700,800)and the heating rate of y℃/min(y=1,2,5,10).The samples were characterized by Brunauer-Emmett-Teller method,scanning electron microscopy,transmission electron microscopy,H2-temperature programmed reduction,X-ray photoelectron spectroscopy,X-ray diffraction,moreover,the effect of the calcination process on the catalytic activity of the samples were discussed by the catalytic combustion of *** results show that the 3DOM CeMnO3 catalysts calcined at 600℃promote the formation of a perovskite structure,inhibit the reduction of the Mn4+species in the catalyst with high *** catalyst expresses the complete macroporous structure,large specific surface area(38.8 m^(2)/g),higher adsorption oxygen concentration and Mn4+substance concentration,with a low T90%=172℃.By preparing the catalysts at different calcination heating rates,it can be concluded that the catalyst possesses a high concentration of adsorbed oxygen and a low reduction temperature and a large specific surface area(40.42 m^(2)/g)greatly promotes adsorption stage catalytic oxidation reaction and catalytic combustion of toluene at low temperature under the heating rate of 5℃/*** the heating rate is 1℃/min,the catalyst has a complete macroporous structure(>250 nm),which is beneficial to the exchange of macromolecular substances during the catalytic reaction and the catalyst has a high concentration of lattice oxygen suitable for the catalysis of toluene in high temperature flue gas combustion.

关键词： Three-dimensionally ordered macroporous Perovskite catalyst Calcination temperature Calcination heating rate Rare earths