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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

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

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

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

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

一例颅锁骨发育不全患儿的RUNX2基因变异分析

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中华医学遗传学杂志 2021年第8期38卷 749-752页

作者：袁惠华王燕利王清明罗淑仪刘超成袁海明东莞市妇幼保健院 523120 东莞市生殖遗传研究所 523120

目的对1例颅锁骨发育不全(cleidocranial dysplasia,CCD)患儿RUNX2基因进行变异分析,明确其可能的致病原因。方法收集患儿及其父母外周血,提取基因组DNA,应用全外显子测序对患儿进行检测,并用Sanger测序对先证者及父母进行验证。结果全... 详细信息

目的对1例颅锁骨发育不全(cleidocranial dysplasia,CCD)患儿RUNX2基因进行变异分析,明确其可能的致病原因。方法收集患儿及其父母外周血,提取基因组DNA,应用全外显子测序对患儿进行检测,并用Sanger测序对先证者及父母进行验证。结果全外显子测序检测到患儿RUNX2基因发生了c.460G>T(***154Phe)错义变异(GRCh37/hg19),该变异位于Runt结构域,高度保守(PM1),在正常人群数据库频率为0(PM2),多种计算机软件预测有害(PP3),与患者临床表型高度相符(PP4)。该变异为未报道过的新变异;Sanger测序验证显示患儿父母均未检测到该变异,因此患儿的变异为新发变异(PS2),根据美国医学遗传学与基因组学学会遗传变异分类标准与指南,RUNX2基因c.460G>T变异判定为致病性变异(PS2+PM1+PM2+PP3+PP4)。结论RUNX2基因c.460G>T(***154Phe)变异可能为患儿的致病原因,新变异的检出扩展了RUNX2基因变异谱。

关键词： RUNX2基因颅锁骨发育不全全外显子测序

Performance and Modeling of an Up-flow Anaerobic Sludge Blanket(UASB) Reactor for Treating High Salinity Wastewater from Heavy Oil Production

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China Petroleum Processing & Petrochemical Technology 2012年第3期14卷 90-95页

作者： liu Chunshuang Zhao Dongfeng Guo Yadong Zhao chaocheng College of Chemical Engineering China University of Petroleum

In this study,an up-flow anaerobic sludge blanket(UASB) reactor was applied to treat the high salinity wastewater from heavy oil production *** a HRT of ≥24 h,the COD removal reached as high as 65.08% at an influent COD ranging from 350mg/L to 640mg/*** average of 74.33% oil reduction was also achieved in the UASB reactor at an initial oil concentration between 112mg/L and 205mg/*** results indicated that this heavy oil production related wastewater could be degraded efficiently in the UASB *** sludge was formed in this *** addition,two models,built on the back propagation neural network(BPNN) theory and linear regression techniques were developed for the simulation of the UASB system performance in the oily wastewater *** average error of COD and oil removal was-0.65% and 0.84%,*** results indicated that the models built on the BPNN theory were wellfitted to the detected data,and were able to simulate and predict the removal of COD and oil by the UASB reactor.

关键词： up-flow anaerobic sludge blanket (UASB) high salinity heavy oil produced wastewater granule sludge BPNN

MoS_2/Bi_2S_3异质结光催化剂的制备及其光催化性能

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化工环保 2018年第3期38卷 305-310页

作者：王永剑张亮赵朝成刘宗梅郭锐韩建鹏中国石油大学(华东)化学工程学院山东青岛266580 石油石化污染物控制与处理国家重点实验室北京102206

以五水硝酸铋为铋源、钼酸钠为钼源、硫脲为硫源,采用简单的一步水热法合成了MoS_2/Bi_2S_3异质结光催化剂,采用XRD,SEM,TEM,BET,UV-Vis DRS技术对其进行了表征。表征结果显示,MoS_2纳米片在Bi_2S_3微棒表面生长,增加了比表面积和活性位... 详细信息

以五水硝酸铋为铋源、钼酸钠为钼源、硫脲为硫源,采用简单的一步水热法合成了MoS_2/Bi_2S_3异质结光催化剂,采用XRD,SEM,TEM,BET,UV-Vis DRS技术对其进行了表征。表征结果显示,MoS_2纳米片在Bi_2S_3微棒表面生长,增加了比表面积和活性位点,并形成异质结构,促进了光生载流子的迁移,抑制了电子-空穴对的再复合。实验结果表明:钼酸钠与五水硝酸铋的质量比为1∶2时制备的复合光催化剂性能最好,反应180min时对亚甲基蓝的去除率可达96.4%,明显高于MoS_2和Bi_2S_3,且具有较高的稳定性;该催化剂对罗丹明B、甲基橙和4-硝基苯酚的去除率分别为97.1%、93.1%和90.5%,表明其对污染物具有普适性。

关键词： MoS2/Bi2S3 异质结一步水热法光催化亚甲基蓝

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