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651.
采用氮气搅拌的方法,强化高硫铝土矿电解脱硫过程,考察了电解液配比、电流密度、气流速度等因素对脱硫率的影响。研究表明:脱硫率随电解液中NaCl含量增加而增加;电解脱硫率随着NaOH浓度和电流密度先升高后下降;增加气体流速能够显著提高电解脱硫率。基于电解脱硫特点,提出了铝土矿电解脱硫工艺与现有氧化铝生产的衔接方式。 相似文献
652.
气相色谱法测定室内空气中挥发性卤代烃 总被引:1,自引:0,他引:1
建立了活性炭吸附-溶剂解吸-气相色谱测定室内空气中7种挥发性卤代烃的分析方法。样品经活性炭采样管富集后,用二硫化碳解吸,Agilent HP-1色谱柱分离,使用带有电子捕获检测器的气相色谱仪测定,以保留时间定性,外标法定量。当采样体积为10 L时,方法检出限范围是0.03~0.18 g/m3,加标回收率在72%~114%之间,相对标准偏差小于15%。结果表明,该方法可以应用于室内空气中痕量挥发性卤代烃样品的检测分析。 相似文献
653.
介绍了垃圾焚烧烟气烧脱硝控制的主要技术及应用情况,以及非催化还原技术的应用实例,采用该技术,氮氧化物排放值可满足现阶段排放要求。 相似文献
654.
珠江三角洲地区大气污染最明显的特点就是臭氧浓度的升高导致大气氧化性增强,而挥发性有机化合物(VOCs)和氮氧化物是大气臭氧生成的重要前体物。珠三角地区工业体系发达,VOCs的生产及使用企业众多,由于VOCs的种类繁多,性质各异,排放条件多样,目前已经形成了一系列的VOCs废气实用治理技术。 相似文献
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657.
文章通过综合分析、计算 ,提出用天然气代替煤作主要能源 ,走燃机热电联供道路 ,解决北京市大气环境恶化的问题 ,并对这一工程方案实施的可能性和优越性作了阐述 ,最后提出了多项实施建议。 相似文献
658.
将河南平顶山煤气公司原煤气输配系统改造成为自动恒压控制系统,从而提高安全系数,降低煤气输配电耗。 相似文献
659.
Benjamin K. Sovacool 《Environment, Development and Sustainability》2007,9(2):187-201
Contrary to claims from American politicians, lobbyists, and oil and gas executives, allowing energy development in the Alaskan
Arctic National Wildlife Refuge (ANWR) will harm the environment, compromise international law, erode the social significance
of wilderness protection, and ultimately fail to␣increase the energy security of the United States. After exploring a brief
history of the ANWR controversy, this piece argues that the operation of oil and gas refineries in ANWR will release discharged
solids, drilling waste, and dirty diesel fuel into the ecosystem’s food-chain, as they have from oil operations in Prudhoe
Bay. Less obvious but equally important, oil and gas exploration in ANWR will violate a number of international treaties on
biodiversity protection. In the end, development in ANWR will threaten the concept of wilderness protection, and will do little
to end US dependence on foreign sources of energy.
About the Author: Benjamin K. Sovacool is a doctoral candidate in the Department of Science and Technology Studies at the Virginia Polytechnic
Institute & State University in Blacksburg, Virginia. He works as a research analyst for the Consortium on Energy Restructuring
and is a Senior Research Fellow for the Virginia Center for Coal and Energy Research. He also just completed a Graduate Fellowship
in Energy Policy at the Oak Ridge National Laboratory in Oak Ridge, Tennessee.
Readers should send their comments on this paper to: BhaskarNath@aol.com within 3 months of publication of this issue. 相似文献
660.
As part of the Paris climate agreement, countries have submitted (Intended) Nationally Determined Contributions (NDCs), which includes greenhouse gas reduction proposals beyond 2020. In this paper, we apply the IMAGE integrated assessment model to estimate the annual abatement costs of achieving the NDC reduction targets, and the additional costs if countries would take targets in line with keeping global warming well below 2 °C and “pursue efforts” towards 1.5 °C. We have found that abatement costs are very sensitive to socio-economic assumptions: under Shared Socioeconomic Pathway 3 (SSP3) assumptions of slow economic growth, rapidly growing population, and high inequality, global abatement costs of achieving the unconditional NDCs are estimated at USD135 billion by 2030, which is more than twice the level as under the more sustainable socio-economic assumptions of SSP1. Furthermore, we project that the additional costs of full implementation of the conditional NDCs are substantial, ranging from 40 to 55 billion USD, depending on socio-economic assumptions. Of the ten major emitting economies, Brazil, Canada and the USA are projected to have the highest cots as share of GDP to implement the conditional NDCs, while the costs for Japan, China, Russia, and India are relatively low. Allowing for emission trading could decrease global costs substantially, by more than half for the unconditional NDCs and almost by half for the conditional NDCs. Finally, the required effort in terms of abatement costs of achieving 2030 emission levels consistent with 2 °C pathways would be at least three times higher than the costs of achieving the conditional NDCs – even though reductions need to be twice as much. For 1.5 °C, the costs would be 5–6 times as high. 相似文献