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稳定热轧环保烟气排放指标和提高燃料热值稳定性的实践
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作者 刘强 王玉兴 《山西冶金》 CAS 2023年第5期131-134,共4页
结合首钢京唐联合有限责任公司生产实际情况,从增大转炉煤气回收、优化热轧混合站运行方式两个路径对热轧环保烟气排放指标和燃料热值稳定性进行研究。通过利用京唐厂区空间、转炉煤气、天然气等清洁能源结合热轧混合站过程控制,达到热... 结合首钢京唐联合有限责任公司生产实际情况,从增大转炉煤气回收、优化热轧混合站运行方式两个路径对热轧环保烟气排放指标和燃料热值稳定性进行研究。通过利用京唐厂区空间、转炉煤气、天然气等清洁能源结合热轧混合站过程控制,达到热轧烟气脱硫脱硝环保设备投运前稳定热轧环保烟气排放指标和提高燃料热值稳定性的要求,实现环保指标达标、高产达效的目的。 展开更多
关键词 环保指标 过程控制 稳定 达效
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冶金与烟气环保交叉领域研究生培养模式探讨 被引量:3
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作者 何汉兵 《教师》 2019年第29期102-103,共2页
目前冶金工业正承受着巨大的环保压力,在全国节能减排业新形势和既要青山绿水又要金山银山的号召下,中国钢铁有色冶金工业正准备采取冶金与烟气环保相结合的模式,重点支持三废处理特别是烟气脱硫脱硝,因此培养冶金与烟气环保交叉领域研... 目前冶金工业正承受着巨大的环保压力,在全国节能减排业新形势和既要青山绿水又要金山银山的号召下,中国钢铁有色冶金工业正准备采取冶金与烟气环保相结合的模式,重点支持三废处理特别是烟气脱硫脱硝,因此培养冶金与烟气环保交叉领域研究生具有重大意义。第一,根据目前钢铁烧结机和有色冶金行业对交叉领域研究生创新能力的要求,理清冶金与环保教学中的特点;第二,根据冶金学院的实际情况,提出将冶金专业基础知识、烟气脱硫脱硝环保技术和科研素质进行有机结合,构建研究生创新人才培养模式;第三,通过研究生理论体系的学习、课题选题、冶金烟气脱硫脱硝交叉专业知识的学习,形成比较完备的冶金与烟气环保交叉学科人才培养体系;第四,培养高水平研究生导师团队,培育冶金环保人才培养基地,建立冶金烟气环保交叉领域人才质量评价体系。 展开更多
关键词 研究生培养 有色钢铁冶金 环保 课程改革
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基于脱硫脱硝创客空间的冶金烟气环保人才培养探讨 被引量:2
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作者 何汉兵 《教师》 2021年第19期115-116,共2页
随着钢铁有色冶金工业的不断发展和烟气排放标准的不断提高,烟气治理的压力越来越大,但冶金与烟气环保交叉领域人才特别是高端人才供不应求。文章基于脱硫脱硝创客空间建设,采取了如下人才培养举措:①根据钢铁有色冶金行业烟气治理特点... 随着钢铁有色冶金工业的不断发展和烟气排放标准的不断提高,烟气治理的压力越来越大,但冶金与烟气环保交叉领域人才特别是高端人才供不应求。文章基于脱硫脱硝创客空间建设,采取了如下人才培养举措:①根据钢铁有色冶金行业烟气治理特点,建立专业知识丰富的教学科研团队;②在授课或讲座中,将钢铁有色冶金工业流程与烟气脱硫脱硝VOCs治理等方法有机结合;③基于脱硫脱硝创客空间,选择一系列烟气治理方面的课题让学生进行实验,使其将理论与实践结合;④让学生在学习和实验基础上参与教师部分企业横向科研项目,真正将所学冶金环保知识用于工业化生产,达到服务社会的目的。最后就冶金烟气环保人才培养提出了下一步建议:①设立冶金工程—烟气环保交叉领域专业;②创建冶金工程—烟气环保交叉领域产教融合示范基地;③举办冶金工程—烟气环保交叉领域科技竞赛。 展开更多
关键词 脱硫脱硝 创客空间 冶金烟环保 人才培养
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烟气脱硫脱硝环保设备的生产研究
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作者 林海 《科技创新与应用》 2016年第20期93-93,共1页
近年来我国经济发展十分迅速,各方面都取得了一定的成就,就环保产业来看,随着我国环境问题日益严峻,党中央国务院十分重视我国环境问题,社会力量也密切关注环境问题,使得我国环保企业处在快速发展的阶段,但是在发展的同时仍有许多问题存... 近年来我国经济发展十分迅速,各方面都取得了一定的成就,就环保产业来看,随着我国环境问题日益严峻,党中央国务院十分重视我国环境问题,社会力量也密切关注环境问题,使得我国环保企业处在快速发展的阶段,但是在发展的同时仍有许多问题存在,比如政策、技术、资金、成本等因素使得某些企业或部门对环保设备和工作的力度较弱,文章就烟气脱硫脱硝环保设备的生产来进行研究,希望能起到抛砖引玉的作用。 展开更多
关键词 脱硫脱硝环保设备 生产 研究
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烟气环保岛协同脱除多污染物的应用
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作者 赖志华 《中国环保产业》 2021年第8期39-41,共3页
大连某热电厂7×670t/h锅炉配套以电袋复合除尘器为核心的烟气环保岛,协同余热利用系统、SNCR+SCR复合脱硝工艺、石灰石-石膏湿法脱硫工艺、导电玻璃钢阳极管湿式电除尘器,提高了锅炉效率,节省了运行成本。各烟气治理设备间的协同... 大连某热电厂7×670t/h锅炉配套以电袋复合除尘器为核心的烟气环保岛,协同余热利用系统、SNCR+SCR复合脱硝工艺、石灰石-石膏湿法脱硫工艺、导电玻璃钢阳极管湿式电除尘器,提高了锅炉效率,节省了运行成本。各烟气治理设备间的协同作用效果显著,出口的颗粒物、SO_(2)、NO_(x)排放浓度经过测试验证,分别小于5mg/m^(3)、15mg/m^(3)、35mg/m^(3),达到超低排放要求。 展开更多
关键词 环保 协同治理 电袋复合除尘器 节能降耗 超低排放
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做好电厂烟气脱硫环保工程的策略分析
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作者 王牌 《中国科技期刊数据库 工业A》 2021年第9期228-228,230,共2页
电厂烟气脱硫环保工程是目前电厂发展过程中必须要建设的,若不进行烟气脱硫环保工程建设,很显然其排放的烟气会造成严重的环境污染问题,这与当前绿色发展理念不符,因此非常有必要对电厂烟气脱硫环保工程进行分析讨论,本文中对烟气脱硫... 电厂烟气脱硫环保工程是目前电厂发展过程中必须要建设的,若不进行烟气脱硫环保工程建设,很显然其排放的烟气会造成严重的环境污染问题,这与当前绿色发展理念不符,因此非常有必要对电厂烟气脱硫环保工程进行分析讨论,本文中对烟气脱硫环保工程的相关技术进行了分析讨论,并指出应当构建循环处理工艺,确保最终的处理效果。 展开更多
关键词 电厂 脱硫环保工程 工艺
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德国研制出气罩式环保喷枪
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《汽车与驾驶维修》 2002年第9期8-8,共1页
关键词 德国 罩式环保喷枪 德国METACAP公司 无粉尘喷漆 喷漆
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港台走俏“环保”服装
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作者 李忠东 《华人时刊》 1998年第13期19-19,共1页
在台湾,随着保护环境的意识日趋强烈,棉、麻和丝等天然织品以其平实和与人的肌肤触感十分接近的质材而愈来愈受到人们的喜爱和青睐。 “环保”服装在款式上以宽松为主调,因此简洁大方成为裁剪的基本原则,最常见的是体闲化。休闲的情调... 在台湾,随着保护环境的意识日趋强烈,棉、麻和丝等天然织品以其平实和与人的肌肤触感十分接近的质材而愈来愈受到人们的喜爱和青睐。 “环保”服装在款式上以宽松为主调,因此简洁大方成为裁剪的基本原则,最常见的是体闲化。休闲的情调和环保的意识能巧妙结合,融为一体,给人以健康的美感。休闲的款式清新、自如和惬意,不拘泥于时间和场合,也没有年龄和层次等的限制,所以成为近年来台湾时装的发展趋势之一。 展开更多
关键词 发展趋势 基本原则 环保气 服装用 港台 保护环境 “回归自然” 制做过程 田园风味 天然原料
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铜冶炼烟气调控生产实践 被引量:1
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作者 吴昌考 杞学峰 +1 位作者 普荣生 刘跃强 《中国金属通报》 2021年第11期22-24,共3页
本文以楚雄滇中有色金属有限责任公司铜冶炼烟气调控为例,根据现有的环保设备、烟气处理工艺,在最大生产负荷组织模式下,重点阐述在实际生产过程中对烟气的调控所取得的方法和经验。
关键词 铜冶炼 生产组织模式 制酸烟 环保 调控
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纯国产燃气公交车在津问世 被引量:1
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《资源节约与环保》 2003年第1期46-46,共1页
关键词 纯国产燃公交车 经济性 客车 设计特点 排放控制 环境保护 天津单-燃料环保型车
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NO中微量NO2的比色法分析
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作者 张洪霞 《低温与特气》 CAS 1995年第1期55-57,共3页
在721分光光度计上,用比色法完成了NO中微量NO2的分析,用自制的一套取样装置取决了NO极易遇氧氧化、再遇水即生成酸的实际困难,该装置选用六通阀定体积取样,用稀释法将样品带入吸收液中被完全吸收。该方法简单,可靠,需... 在721分光光度计上,用比色法完成了NO中微量NO2的分析,用自制的一套取样装置取决了NO极易遇氧氧化、再遇水即生成酸的实际困难,该装置选用六通阀定体积取样,用稀释法将样品带入吸收液中被完全吸收。该方法简单,可靠,需样品量少,对2N与2.5N纯度的NO最低检测浓度和准确度,均可满足产品质量的分析要求。 展开更多
关键词 环保气 比色法 微量杂质分析 氧化氮 二氧化氮
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Macro Impact of the Law on Prevention and Control of Atmospheric Pollution on Power Industry Development
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作者 王志轩 《Electricity》 2001年第2期38-41,共4页
The newly revised and enlarged main contents of the Law of Prevention and Control of Atmospheric Pollution are described, The macro impacts of the law on the power industry development are analyzed mainly in respects ... The newly revised and enlarged main contents of the Law of Prevention and Control of Atmospheric Pollution are described, The macro impacts of the law on the power industry development are analyzed mainly in respects to power demand and readjustment of power structure and layout. clean production and pollution control level, scientific management of environmental protection, in accordance with law as well as changes of construction and operation costs. And finally, several questions worthy to be noted in course of implementation of the new law are enumerated. 展开更多
关键词 law of environmental protection atmospheric pollution power industry
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TYPICAL WEATHER CHARACTERISTICS ASSOCIATED WITH AIR POLLUTION IN HONG KONG AREA 被引量:8
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作者 陈训来 范绍佳 +3 位作者 李江南 刘吉 王安宇 冯瑞权 《Journal of Tropical Meteorology》 SCIE 2008年第2期101-104,共4页
With the hourly data of Air Pollution Index (AP1) by Hong Kong Environmental Protection Department (HKEPD) during the 6 years of 2000 - 2005 and NCEP / NCAR reanalysis data of 2.5°× 2.5° wind and pr... With the hourly data of Air Pollution Index (AP1) by Hong Kong Environmental Protection Department (HKEPD) during the 6 years of 2000 - 2005 and NCEP / NCAR reanalysis data of 2.5°× 2.5° wind and pressure fields, the characteristics of API in Hong Kong area and the impacts of typical weather characteristics on the air pollution in Hong Kong have been studied. The results are shown as follows. (1) The API exhibits obvious seasonal variability as the number of air pollution days increases by the year. For most of the local monitoring stations, it is the most from January to March, a little less from July to September and the least from April to June. (2) There are four typical types of weather situations that are responsible for the air pollution in Hong Kong: tropical cyclones, continental cold highs, transformed highs that have moved out to sea and low pressure troughs. 展开更多
关键词 air pollution index weather characteristics air pollution
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Differential generation of hydrogen peroxide upon exposure to zinc and cadmium in the hyperaccumulating plant specie(Sedum alfredii Hance) 被引量:2
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作者 Yue-en CHAO Min ZHANG Sheng-ke TIAN Ling-li LU Xiao-e YANG 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2008年第3期243-249,共7页
Sedum alfredii Hance has been identified as zinc(Zn) and cadmium(Cd) co-hyperaccumulator.In this paper the relationships of Zn or Cd hyperaccumulation to the generation and the role of H2O2 in Sedum alfredii H.were ex... Sedum alfredii Hance has been identified as zinc(Zn) and cadmium(Cd) co-hyperaccumulator.In this paper the relationships of Zn or Cd hyperaccumulation to the generation and the role of H2O2 in Sedum alfredii H.were examined.The results show that Zn and Cd contents in the shoots of Sedum alfredii H.treated with 1000 μmol/L Zn2+ and/or 200 μmol/L Cd2+ increased linearly within 15 d.Contents of total S,glutathione(GSH) and H2O2 in shoots also increased within 15 d,and then decreased.Total S and GSH contents in shoots were higher under Cd2+ treatment than under Zn2+ treatment.However,reverse trends of H2O2 content in shoots were obtained,in which much higher H2O2 content was observed in Zn2+-treated shoots than in Cd2+-treated shoots.Similarly,the microscopic imaging of H2O2 accumulation in leaves using H2O2 probe technique showed that much higher H2O2 accumulation was observed in the Zn2+-treated leaf than in the Cd2+-treated one.These results suggest that there are different responses in the generation of H2O2 upon exposure to Zn2+ and Cd2+ for the hyperaccumulator Sedum alfredii H.And this is the first report that the generation of H2O2 may play an important role in Zn hyperaccumulation in the leaves.Our results also imply that GSH may play an important role in the detoxification of dissociated Zn/Cd and the generation of H2O2. 展开更多
关键词 Hydrogen peroxide (H2O2) Glutathione (GSH) Sedum alfredii Hance Zinc (Zn) Cadmium (Cd) HYPERACCUMULATOR
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燃煤发电机组超低排放改造前后汞排放规律对比研究 被引量:3
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作者 王宏亮 许月阳 +2 位作者 薛建明 刘涛 管一明 《中国电力》 CSCD 北大核心 2020年第11期243-251,共9页
采用安大略法(Ontario hydro method,OHM)对2台超低排放改造机组排放的烟气汞进行了采样检测,并将测试数据与改造前的测试数据进行了对比分析。试验结果表明:2台机组排口总汞浓度分别为2.31、4.22μg/m^3,远低于国内现行标准。汞排放因... 采用安大略法(Ontario hydro method,OHM)对2台超低排放改造机组排放的烟气汞进行了采样检测,并将测试数据与改造前的测试数据进行了对比分析。试验结果表明:2台机组排口总汞浓度分别为2.31、4.22μg/m^3,远低于国内现行标准。汞排放因子由改造前的1.76和3.13 g/TJ下降为0.83和2.17 g/TJ,降幅分别为52.84%和30.67%。改造后SCR+DESP+WFGD+WESP组合环保设施的总汞脱除效率分别为87.91%、82.27%,相较于改造前SCR+DESP+WFGD的组合效率69.57%、65.61%,效率绝对值分别提升了18.34、16.66个百分点。研究表明:改造提高了SCR对单质汞的氧化率,强化了WFGD对氧化汞和颗粒汞的捕集能力,新增设的WESP表现出对氧化汞和单质汞的协同脱除能力。另外,提高SCR流场均匀性、加强催化剂维护、抑制WFGD中氧化汞的再还原等能有效保障现有环保设施协同脱汞能力。 展开更多
关键词 燃煤机组 超低排放改造 环保设施 汞协同脱除 汞排放因子
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Treatment of zinc deficiency without zinc fortification 被引量:1
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作者 Donald OBERLEAS Barbara F.HARLAND 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2008年第3期192-196,共5页
Zinc(Zn) deficiency in animals became of interest until the 1950s.In this paper,progresses in researches on physiology of Zn deficiency in animals,phytate effect on bioavailability of Zn,and role of phytase in healing... Zinc(Zn) deficiency in animals became of interest until the 1950s.In this paper,progresses in researches on physiology of Zn deficiency in animals,phytate effect on bioavailability of Zn,and role of phytase in healing Zn deficiency of animals were reviewed.Several studies demonstrated that Zn is recycled via the pancreas;the problem of Zn deficiency was controlled by Zn homeostasis.The endogenous secretion of Zn is considered as an important factor influencing Zn deficiency,and the critical molar ratio is 10.Phytate(inositol hexaphosphate) constituted up to 90% of the organically bound phosphorus in seeds.Great improvement has been made in recent years on isolating and measuring phytate,and its structure is clear.Phytate is considered to reduce Zn bioavailability in animal.Phytase is the enzyme that hydrolyzes phytate and is present in yeast,rye bran,wheat bran,barley,triticale,and many bacteria and fungi.Zinc nutrition and bioavailability can be enhanced by addition of phytase to animal feeds.Therefore,using phytase as supplements,the most prevalent Zn deficiency in animals may be effectively corrected without the mining and smelting of several tons of zinc daily needed to correct this deficiency by fortification worldwide. 展开更多
关键词 Zinc (Zn) PHYTATE PHYTASE Zinc deficiency Zinc homeostasis
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Thermogravimetric Study and Modeling of Direct Sulfation of Limestone by Sulfur Dioxide 被引量:3
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作者 R.Hallaj M.Nikazar B.Dabir 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2004年第4期566-569,共4页
The direct sulfation of limestone from different sources in Iran was studiedin a thermogravimetric analyzer under atmospheric pressure. All limestone samples tested have higherthan 97% CaCO_3. Experimental conditions ... The direct sulfation of limestone from different sources in Iran was studiedin a thermogravimetric analyzer under atmospheric pressure. All limestone samples tested have higherthan 97% CaCO_3. Experimental conditions were as follows: particle size levels ranging from 1.6 μmto 7.8 μm, four level reaction temperatures (700℃, 750℃, 800℃ and 850℃), and two SO_2concentrations (2.4 x 10^(-3) and 3.2 x 10^(-3) mol · mol^(-1)). The particle size and temperatureshowed dominant influences on the rate and level of conversion while the effect of SO_2concentration was weak. The shrinking core model can be used to describe the behavior of thesulfation process. The reaction kinetics and diffusion mechanism are both important in controllingthe rate of the process. The two key parameters of the model, chemical rate constant K_s andeffective diffusion coefficient D_(eff) were obtained. Model predictions are in good agreement withthe experimental data. 展开更多
关键词 air pollution control DESULFURIZATION flue gas desulfurization shrinkingcore model
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Molecular Simulation Study on Interaction of Thiophene Sulfides with Transition Metals 被引量:6
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作者 LiuYujian LongJun ZhouHan ZhuYuxia DaZhijian 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2003年第4期43-49,共7页
The computer molecular simulation technique was applied to study the chemisorption of thiophene and tetramethylthiophene as the model sulfides on the simple oxides and complex oxides of some transition metals as the c... The computer molecular simulation technique was applied to study the chemisorption of thiophene and tetramethylthiophene as the model sulfides on the simple oxides and complex oxides of some transition metals as the catalytic materials. The study disclosed that the thiophene sulfides could enter into chemisorption with metal oxides such as VO, ZnO, NiO and Zn-Al-spinel. This interaction could lead to thiophene molecular structure deformation to be in an activated adsorption state, which could help to promote the conversion of thiophene sulfides in the course of catalytic cracking. The VO with a valence of 2 could provide relatively strong selective adsorption sites for the conversion of thiophene sulfides to apparently transform the molecular structures and electron cloud states of such heterocyclic sulfur compounds such as thiophene and tetramethylthiophene into an activated adsorption state. The effect of this interaction was more pronounced with respect to tetramethylthiophene. 展开更多
关键词 catalytic cracking sulfur reducing mechanism THIOPHENE molecularsimulation transition metal oxides VANADIUM
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Coal fires in China 被引量:1
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作者 车遥 黄文辉 张爱云 《Journal of Coal Science & Engineering(China)》 2004年第1期36-40,共5页
Coal fires have a very long history in China; the oldest coal fires have being burning for many million years. Up to now more than 56 coal fires spots were distin-guished. They mainly locate in West-North of China, No... Coal fires have a very long history in China; the oldest coal fires have being burning for many million years. Up to now more than 56 coal fires spots were distin-guished. They mainly locate in West-North of China, North of China and East-North of China. About millions of tons of coal have been burned in fires every year. Xinjiang Autonomy is the most serious region in coal fires as it has 38 coal fires spots and about 6.85 million tons of coal was burned every year. Coal fires in China ignited by wildfires, spontaneous combustion and human being during mining activities. These fires have re-leased about 0.9 million tons of gasses (including CO, CO2, SO2, NO2 CH4, CO2, H2S etc.) into the atmosphere every year, most of which are brought to the east by wind and result-ing more heavier air pollution in northern China. 展开更多
关键词 coal fires China CONTRIBUTION ENVIRONMENT
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Current State and Prospect of China Natural Gas Industry 被引量:3
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作者 Gao Jie Chen Jianhui +3 位作者 Sun Hui Ge Ye Wei Kaihua Li Bo 《China Oil & Gas》 CAS 2016年第1期22-28,共7页
Natural gas output remained stable growth and reached 130.9 billion cubic meters in 2015, 3% higher than the same period last year. Shale gas saw huge progress. China titus became the third country in the world fu!fil... Natural gas output remained stable growth and reached 130.9 billion cubic meters in 2015, 3% higher than the same period last year. Shale gas saw huge progress. China titus became the third country in the world fu!filling commercial development after U.S. attd Canada. Natural gas import growth and growth rate declined obviously, and the imported pipeline gas and LNG totaled 61.2 billion cubic meters in 2015. Apparent natural gas consumption was 186.5 billion cubic meters in 2015, rising by 4.4% as compared with the same period last year, but it hit a historic low. There is higher dozonward pressure on domestic macro economy in 2016. However, natural gas demand will see more rapid growth, propelled by such favorable factors as gas price regulation and environmental protection policies. It is prospected that natural gas market will take a turn for the better than in 2015, and natural gas supply will still be rich in general in 2016. 展开更多
关键词 China Natural gas CONSUMPTION PRICE City gas Gas power generation Natural gas vehicles
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