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Study on mechanism of mercury oxidation by fly ash from coal combustion

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Chinese Science Bulletin 2010年第2期55卷 163-167页

作者： ZHAO YongChun ZHANG JunYing LIU Jing diaz-somoano mercedes MARTINEZ-TARAZONA M. Rosa ZHENG ChuGuang State Key Laboratory of Coal Combustion Huazhong University of Science & Technology Wuhan 430074 China Instituto Nacional del Carbon ( CSIC) Francisco Pintado Fe 26 33011 Oviedo Spain

To understand the interaction of fly ash and mercury, systematic experiments on mercury oxidation in single flue gas composition are conducted on a fixed bed reactor system, the desorption rate and speciation of mercury are valuated. The results indicate that fly ash itself can significantly promote elemental mercury oxidation. A classification of fly ash activated sites is developed according to the speciation of mercury during adsorption-desorption tests, the reaction mechanism of mercury oxidation by fly ash is proposed. Acid gas can promote mercury oxidation and improve the stability of oxidation product. Lattice oxygen is an important oxidant of mercury oxidation.

关键词：氧化机制粉煤灰煤炭燃烧汞反应器系统氧化反应机理相互作用烟气成分

Experimental study on fly ash capture mercury in flue gas

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Science China(Technological Sciences) 2010年第4期53卷 976-983页

作者： mercedes DíAZ-somoano Patricia ABAD-VALLE M.Rosa MARTíNEZ-TARAZONA Instituto Nacional del Carbón(CSIC)

Systematic experiments were conducted on a fixed-bed reactor to investigate the interaction between fly ash and mercury,the results implied that fly ash can capture mercury *** different fly ashes,the unburned carbon in the FA2 and FA3 fly ashes has the highest mercury capture capacity,up to 10.3 and 9.36 μg/g,respectively,which is close to that of commercial activated *** is no obvious relationship between mercury content and carbon content or BET surface area of fly *** classification standard was applied to distinguish fly ash carbon *** content is not the only variable that controls mercury capture on fly ash,there are likely significant differences in the mercury capture capacities of the various carbon *** capture capacity mainly depends on the content of anisotropy carbon particles with porous network structure.

关键词： mercury fly ash unburned carbon petrography adsorption

Acute hepatitis with autoimmune features after COVID-19 vaccine:coincidence or vaccine-induced phenomenon?

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Gastroenterology Report 2022年第1期10卷 628-631页

作者： Jose M.Pinazo-Bandera Alicia Hernandez-Albujar Ana Isabel Garcia-Salguero Isabel Arranz-Salas Raul J.Andrade mercedes Robles-diaz Division of Gastroenterology and Hepatology Instituto de Investigacion Biomedica de Malaga-IBIMAHospital Universitario Virgen de la VictoriaUniversidad de MalagaMalagaSpain Division of Anatomical Pathology Hospital Universitario Virgen de la VictoriaMalagaSpain Centro de Investigacion Biomedica en Red de Enfermedades Hepaticas y Digestivas(CIBERehd) MadridSpain

Introduction Autoimmune diseases result from a breach of immunological self-tolerance and tissue damage by autoreactive T *** acute respiratory syndrome coronavirus-2(SARS-CoV-2)infection is characterized by an inflam... 详细信息

关键词： autoimmune vaccine acute

Laparoscopic approach in gastrointestinal emergencies

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World Journal of Gastroenterology 2016年第9期22卷 2701-2710页

作者： Rosa M Jimenez Rodriguez Juan José Segura-Sampedro mercedes Flores-Cortés Francisco López-Bernal Cristobalina Martín Verónica Pino diaz Felipe Pareja Ciuro Javier Padillo Ruiz Department of Surgery Hospital Universitario Virgen del Rocio 41013 Sevilla Spain Hospital Universitario Son Espases 07010 Palma de Mallorca Spain

This review focuses on the laparoscopic approach to gastrointestinal emergencies and its more recent indications. Laparoscopic surgery has a specific place in elective procedures, but that does not apply in emergency situations. In specific emergencies, there is a huge range of indications and different techniques to apply, and not all of them are equally settle. We consider that the most controversial points in minimally invasive procedures are indications in emergency situations due to technical difficulties. Some pathologies, such as oesophageal emergencies, obstruction due to colon cancer, abdominal hernias or incarcerated postsurgical hernias, are nearly always resolved by conventional surgery, that is, an open approach due to limited intraabdominal cavity space or due to the vulnerability of the bowel. These technical problems have been solved in many diseases, such as for perforated peptic ulcer or acute appendectomy for which a laparoscopic approach has become a wellknown and globally supported procedure. On the other hand, endoscopic procedures have acquired further indications, relegating surgical solutions to a second place; this happens in cholangitis or pancreatic abscess drainage. This endoluminal approach avoids the need for laparoscopic development in these diseases. Nevertheless, new instruments and new technologies could extend the laparoscopic approach to a broader array of potentials procedures. There remains, however, a long way to go.

关键词： Minimally invasive surgery Gastrointestinal surgery Emergency surgery Digestive emergencies Abdominal emergencies

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燃煤飞灰吸附脱汞能力的实验研究

中国科学：技术科学 2010年第4期40卷 385-391页

作者：赵永椿张军营刘晶 DíAZ-somoano mercedes ABAD-VALLE Patricia MARTíNEZ-TARAZONA M Rosa 郑楚光华中科技大学煤燃烧国家重点实验室 Instituto Nacional del Carbón(CSIC) Francisco Pintado Fe2633011OviedoSpain

运用煤岩学分类相关理论对燃煤飞灰岩相组成进行了系统定量分析,并采用固定床汞吸附反应系统对不同电厂飞灰吸附汞的能力进行了详细研究,结果表明:不同的飞灰对汞均有一定的吸附能力,其中以烟煤飞灰CTSR和CTL的富碳组分对汞的吸附能力最... 详细信息

运用煤岩学分类相关理论对燃煤飞灰岩相组成进行了系统定量分析,并采用固定床汞吸附反应系统对不同电厂飞灰吸附汞的能力进行了详细研究,结果表明:不同的飞灰对汞均有一定的吸附能力,其中以烟煤飞灰CTSR和CTL的富碳组分对汞的吸附能力最强,其吸附能力分别为10.3和9.36μg/g,与商业活性炭捕获能力相当;飞灰中汞的含量与其含炭量和比表面积并无明显的相关性.揭示了飞灰颗粒岩相组成,分析了飞灰脱汞能力的影响因素.不同飞灰碳颗粒类型脱汞性能差异明显,各向异性碳颗粒尤其是多孔网状结构碳含量是决定飞灰脱汞能力的主要因素.

关键词：汞飞灰未燃碳岩相组成吸附

西班牙某医院波及黄斑的视网膜脱离患者手术时机与术后视力的关系（英文）

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国际眼科杂志 2017年第12期17卷 2203-2206页

作者： Raquel Castro-Florez R Isabel Gese-Bordils mercedes Garcia-Torre Ignacio Jimenez-Alfaro Guillermo Fernandez-Sanz fundacion jimenez diaz 视网膜科西班牙马德里28040

目的:分析西班牙某三级医院视网膜科接受手术治疗的黄斑裂孔性视网膜脱离患者。着重强调诊断与手术之间的时间间隔,试图寻找术前时间与视力下降之间的关系。方法:回顾性研究。包括77例在Universitario Fundación Jiménez Díaz医院接... 详细信息

目的:分析西班牙某三级医院视网膜科接受手术治疗的黄斑裂孔性视网膜脱离患者。着重强调诊断与手术之间的时间间隔,试图寻找术前时间与视力下降之间的关系。方法:回顾性研究。包括77例在Universitario Fundación Jiménez Díaz医院接受手术治疗的黄斑裂孔性视网膜脱离患者。结果:77例患者中有72例(72眼)参与了该研究。初步手术成功率为94.44%(68/72),采取1或2次干预措施后,全部患者成功率为98.61%(71/72)。术前平均时间为5.3±2.26d。7(9.72%)例患者视力下降2行或更多。视力下降与患者年龄之间具有统计学意义(P=0.001)。研究表明进一步手术干预使视网膜再次附着与视力下降检测之间存在相关联系(P=0.045)。而研究未能发现视力下降与术前时间(P=0.100),手术类型(P=0.578)或晶状体状态(P=0.413)之间具有统计学意义。结论:每家医院都应该研究治疗此类型视网膜脱离治疗的方式,以优化利用现有资源,确保最佳的解剖结构复位和功能恢复。

关键词：视网膜脱离黄斑手术结果视力下降