汽车涂装车间喷漆室废气治理方案简析

汽车涂装车间常用活性炭和沸石转轮作为喷漆室废气处理方式,活性炭吸附设备处理能力大,性能可靠;沸石转轮处理效率高,吸附效果好.针对这2种常用的处理方案进行具体分析和介绍.重点介绍了2种方案各自不同的应用场景,不同应用特点及处理效率.2种废气处理方案均有实际项目运用,结合实际案例进行计算后,总结出了2种处理方案的优缺点以及...     

油田常用缓蚀剂评价

采用失重法,测定了两种油田常用缓蚀剂（HJF-94和WSL-1）对浸没于含CO_2的模拟油田采出水的A3钢的缓蚀作用,并计算腐蚀速率和缓蚀率。实验结果表明：HJF-94缓蚀剂在较低质量分数范围（0-0.1%）有较好的缓蚀效果,在较高质量分数范围（2%-3.5%）的缓蚀率均高于90%;WSL-1缓蚀剂在较高质量分数（1.5%-3%）时缓蚀率均为99%以上;添加了缓蚀剂的金属表面腐蚀轻微,表面光滑,且不存在明显的点蚀倾向。     

国际航运业船舶碳减排措施与行动

随着世界经济的发展,世界海运货物周转量随之增加,国际海运业的碳排放量持续增长,航运业减排的任务十分艰巨。本文结合航运业碳排放的特点,研究分析了国际海事组织(IMO)、欧盟及航运企业采取的一系列减排措施和采取的行动,为我国航运业减少碳排放提供了借鉴和参考依据。     

Hybrid- and battery-electric vehicles offer low-cost climate benefits in China

Car ownership in China is expected to grow dramatically in the coming decades. If growing personal vehicle demand is met with conventional cars, the increase in greenhouse gas emissions will be substantial. One way to mitigate carbon dioxide (CO₂) emissions from passenger travel is to meet growing demand for cars with alternative vehicles such as hybrid- and battery-electric vehicles (HEVs and BEVs). Our study examines the cost-effectiveness of transitioning from conventional cars to HEVs and BEVs, by calculating their marginal abatement cost (MAC) of carbon in the long-run. We find that transitioning from conventional to hybrid and battery electric light-duty, four-wheel vehicles can achieve carbon emissions reductions at a negative cost (i.e. at a net benefit) in China. In 2030, the average MAC is estimated to be about −$140/ton CO₂ for HEVs and −$515/ton CO₂-saved for BEVs, varying by key parameters. The total mitigation potential of each vehicle technology is estimated to be 1.38 million tons for HEVs and 0.75 million tons for BEVs.     

许营桥加固维修技术探讨

结合聊城市省道710线许营桥(K28+835)的加固维修工程,详细介绍了粘贴碳纤维布技术在旧桥加固中的应用以及利用丙乳修补混凝土表面缺陷的施工经验。     

摩托车燃油蒸发炭罐控制技术研究

针对摩托车国Ⅲ燃油蒸发排放标准要求,以豪豹HB125摩托车为试验样车进行燃油蒸发炭罐控制系统的设计研究。结果表明,所设计的燃油蒸发炭罐控制系统不仅能较大程度地降低燃油蒸发排放水平,满足国Ⅲ燃油蒸发标准要求,其尾气排放也满足国Ⅲ排放标准要求。     

基于碳中和目标下公路建设的经验观察与分析

本文从低碳环保理念出发,首先提出了基于碳中和目标下的公路工程建设的理念,通过绿色公路的低碳建设对其进行诠释,从公路建设的不同阶段分析了低碳公路建设的要点,并针对目前进行低碳建设所面临的一些难题,提出了几点解决措施,从而大幅度降低公路建设过程中的碳排放,实现碳中和目标下的交通强国建设。     

我国交通运输业绿色低碳发展对策

随着温室效应给全球生态系统带来的负面影响越发严重,控制碳排放量的急剧增长刻不容缓。在当今的社会发展中,交通运输行业作为能耗大户和主要的CO₂排放源,已引起人们的广泛关注,引导该行业绿色低碳发展也成为未来的主流趋势。本文主要介绍了我国交通绿色低碳发展现状以及影响碳排放的主要因素,并针对当前绿色低碳交通面临的严峻挑战,提出切实可行的对策,为尽早实现交通领域碳达峰的目标提供理论支撑。     

Carbon dioxide emissions from port container distribution: Spatial characteristics and driving factors

Port carbon dioxide (CO₂) emissions in China have become an ever-increasing public concern due to their significant impacts on human health and the environment. However, existing studies focus mainly on CO₂ emissions from vessels calling at the ports and cargo handling within the ports, paying little attention to the inland distribution networks. To fill this gap, this paper proposes an easily implemented method for calculating CO₂ emissions from port container distribution (PCD) and investigates their spatial characteristics and driving factors. By analyzing 30 container ports in China, the main findings are as follows. First, road transportation is the major contributor of CO₂ emissions from PCD due to the lack of rail and inland water transportation. Second, PCD carbon emissions exhibit significant local spatial clustering. That is, ports with similar geographical locations tend to present a similar pattern of PCD carbon emissions. Third, as suggested by the spatial Durbin model, PCD carbon emissions are negatively determined by local gross domestic product, number of port berths, but are positively determined by local tertiary industry value and highway freight volume, and waterway freight volume in both local and neighboring ports. These results provide empirical insights into cross-port collaboration in reducing PCD carbon emissions.     

基于协整分析的我国交通运输业碳排放影响因素研究

交通运输业是碳排放的大户,识别影响碳排放的主要因素有利于采取合理措施降低行业碳排放。采用自上而下的基于能源消耗的计算方法,对我国交通运输业1991—2011年的碳排放进行了测算。并运用协整理论和误差修正模型对碳排放的影响因素进行了实证分析,结果表明:交通能源强度每增长1个单位将导致交通运输业碳排放上升1.429 165个单位,交通运输换算周转量每增长1个单位将导致交通运输业碳排放上升0.985 885个单位。因此,必须采取有效措施降低交通能源强度,减少单位周转量的碳排放,促进交通运输业的可持续发展。