气候变化背景下的生态环境监测与应对策略

随着全球气候变化的加剧，生态环境监测与应对策略在环境保护和可持续发展方面发挥着越来越重要的作用。首先介绍了气候变化对生态环境的影响，然后分析了生态环境监测的方法和技术，提出了应对气候变化的生态环境保护策略。     

中国11项政策与行动举措应对气候变化

即将在南非德班召开联合国气候变化会议的前夕,国务院新闻办公室11月22日发表了《中国应对气候变化的政策与行动（2011）》白皮书。白皮书全面介绍了中国“十一五”期间应对气候变化采取的政策与行动、取得的显著成效,并做出了“十二五”期间中国应对气候变化的I1项政策与行动部署。     

信息动态

石化要闻我国将积极促进低碳经济发展据国家发展和改革委员会有关负责人介绍,为应对气候变化,促进经济社会可持续发展,2010年我国将积极促进低     

新形势下全球碳纤维及其复合材料产业发展动向

简述了全球新冠状病毒疫情、国际形势和人类应对气候变化等对国内外碳纤维及复合材料产业的影响.由于我国的应对措施得力,反而促进了我国碳纤维产业的快速发展并扭亏为盈.本文同时介绍了国内外聚丙烯腈原丝、碳纤维及其复合材料的技术创新和应用新进展.     

中国政策如何应对气候变化

气候变化问题是当今人类社会面临的严峻挑战。世界各国合作应对气候变化是大势所趋。就我国来讲,气候变化所带来的自然灾害越来越频繁,中国政府非常重视应对气候变化,并作出了一系列的措施与方案。从2009年起,中国政府确定了到2020年单位国内生产总值温室气体排放比2005年下降40-45%的行动目标,这是     

2050年我国水泥工业低碳技术成效的研究

<正>1我国如何应对全球气候变化的挑战2009年12月在联合国应对全球气候变化哥本哈根高峰会议上,联合国政府间气候变化专门委员会(IPCC)提交的研究报告认为,与1980~1990年间相     

政策趋同下企业如何应对低碳发展

各国对低碳经济的发展已经从争议达成了共识,围绕低碳经济发展争论的焦点,从气候变化趋势、各国政治利益、中国发展选择几个方面介绍了低碳发展战略的科学依据以及战略政策,指出中国企业应积极应对低碳发展,提出了应对低碳发展的建议和措施。     

《碳信息披露项目中国报告2011》发布

据中新网报道,近日,《碳信息披露项目中国报告2011》在京发布。报告指出,中国政府近一年来出台的一系列应对气候变化的政策开始更多地落向具体和实处。作为应对气候变化主体,中国企业也在技术创新、低碳产品、碳盘查和绿色供应链管理等方面,进行了有益的探索和尝试。     

我国CCS技术发展现状及问题分析

随着全球气候变化,减少温室气体排放在当今世界已经达成共识。CCS技术作为一种应对全球变暖的有效技术途径,其发展潜力巨大,但是也存在很多待解决问题。对CCS技术及CCS技术在我国的发展现状进行了介绍,对CCS技术在我国发展中存在的一系列问题进行了探讨。     

产业发展仍具韧性碳中和目标实现之路径

在新冠肺炎疫情后复杂的国际政治经济格局中,我国提出“碳中和”目标,既体现了我国在环境保护和应对气候变化问题上的责任担当,也为我国绿色低碳发展擘画了宏伟蓝图.水泥工业应根据自身的特点,分析产业内直接和间接碳排放的内在影响因素,积极探索碳中和的关键路径,早日实现碳中目标,以实际行动为全球应对气候变化做出应有贡献.     

新形势下石油公司二氧化碳减排策略的变化

在《巴黎协定》正式生效的前后,很多大石油公司积极表态将为气候变化采取行动。本文分析了主要的国际大石油公司采取的减排思路,总结了这些公司提出的二氧化碳减排策略和具体做法。文中指出石油公司对于二氧化碳减排都很慎重,既要选择能产生实质减排效果的途径,又要尽可能降低对主营业务的影响。因此在业务发展战略与减排战略之间寻找连接和平衡,突出多元化的二氧化碳减排途径,把重点聚焦在进一步加强节能降耗、有选择地发展低碳能源、推进二氧化碳的捕获和综合利用等方面。分析结果认为,首先,这些措施不仅能实现自身业务运营过程中的减排,还能通过提供清洁低碳能源、产品和服务推动社会相关部门以及消费者实现间接减排;其次,实施多样化的减排策略组合可以降低风险;第三,将应对气候变化与企业长远发展的顶层战略相结合,加快技术创新,是降低减排成本、实现减排效果的关键。     

低碳经济对炭黑工业的挑战

气候变化是当今全球面临的重大挑战。减少温室气体排放、遏制气候变暖,拯救地球家园,是全人类共同的使命,每个国家和民族,每个企业和个人,都应当责无旁贷地行动起来。     

Mathematical modelling of sustainable wastewater reuse networks considering CO<Subscript>2</Subscript> emissions

Water resource management poses a challenge in the process industry because a large amount of water must be used, even when prices increase. Companies struggle to minimize consumption by reusing wastewater, and the resulting water-reuse-network problem has been actively investigated. With the rising impact of global climate change, it is necessary to develop a sustainable methodology to reduce carbon dioxide emissions in the process industry. This paper proposes a mathematical model for sustainable water reuse networks that explicitly considers CO₂ emissions. To construct a sustainable network, emissions due to the construction and operation of the water network and additional water demand due to CO₂ capture facilities are incorporated. Actual case studies of steel manufacturing processes and eco-industrial parks are presented to illustrate the applicability of the model.     

我国化学工业控制CO_2排放的对策思考

我国化学工业控制CO2排放的对策,对于我国应对气候变化的挑战、实现可持续发展的理念、落实节能减排工作部署都具有非常重要的意义。通过分析化学工业控制CO2排放所面临的主要问题,在讨论矿物炼制、生物炼制和废物炼制三种化工生产模式与CO2排放的相互关系的基础上,提出了化学工业控制CO2排放的思路。     

Reduction of Energy Consumption and Greenhouse Gas Emissions in a Plant for the Separation of Amines

The chemical industry comprises of the companies that produce industrial chemicals. It is central to the modern world economy, converting raw materials into more than 70 000 different products. However, environmental regulations and the risk of climate change are putting pressure on the chemical industry to minimize greenhouse gas emissions. In this work, we use the concept of process intensification (using thermally coupled distillation) to reduce energy consumption and CO₂ emissions in a plant for the separation of amines. The results show that the use of thermally coupled distillation sequences can be related to a reduction in energy consumption, greenhouse gas emissions, and good theoretical control properties in the re‐designed plant.     

Sensitivity of Diesel Particulate Material Emissions and Composition to Blends of Petroleum Diesel and Biodiesel Fuel

A number of investigations have examined the impact of the use of biodiesel on the emissions of carbon dioxide and regulated emissions, but limited information exists on the chemical composition of particulate matter from diesel engines burning biodiesel blends. This study examines the composition of diesel particulate matter (DPM) emissions from a commercial agriculture tractor burning a range of biodiesel blends operating under a load that is controlled by a power take off (PTO) dynamometer. Ultra-low sulfur diesel (ULSD) fuel was blended with soybean and beef tallow based biodiesel to examine fuels containing 0% (B0), 25% (B25), 50% (B50), 75% (B75), and 100% (B100) biodiesel. Samples were then collected using a dilution source sampler to simulate atmospheric dilution. Diluted and aged exhaust was analyzed for particle mass and size distribution, PM_2.5 particle mass, PM_2.5 organic and elemental carbon, and speciated organic compounds. PM_2.5 mass emissions rates for the B25, B50, and B75 soybean oil biodiesel mixtures had 20%–30% lower emissions than the petroleum diesel, but B100 emissions were about 40% higher than the petroleum diesel. The trends in mass emission rates with the increasing biodiesel content can be explained by a significant decrease in elemental carbon (EC) emissions across all blending ranges and increasing organic carbon (OC) emissions with pure biodiesel. Beef tallow biodiesel blends showed similar trends. Nevertheless, it is important to note that the study measurements are based on low dilution rates and the OC emissions changes may be affected by ambient temperature and different dilution conditions spanning micro-environments and atmospheric conditions. The results show that the use of biodiesel fuel for economic or climate change mitigation purposes can lead to reductions in PM emissions and a co-benefit of EC emission reductions. Detailed speciation of the OC emissions were also examined and are presented to understand the sensitivity of OC emissions with respect to biodiesel fuel blends.

Copyright 2012 American Association for Aerosol Research     

中国钢铁行业“超低排放”向“减污降碳”过渡的技术思考

钢铁行业是我国国民经济的重要基础产业,但同时也是我国污-碳排放量最大的工业行业。2019年4月,五部委联合印发了《关于推进实施钢铁行业超低排放的意见》,率先引领了工业烟气超低排放,我国钢铁行业大气污染排放量实现了大幅削减。“十四五”以来,在“双碳”背景下,随着减污降碳的提出,现有超低排放技术所带来的碳增量效应问题逐渐凸显,又对钢铁行业带来了新的技术需求。本工作阐述了我国钢铁行业超低排放的技术进展,归纳了钢铁行业减污降碳发展方向,并提出了未来钢铁行业绿色低碳发展建议,为推动中国钢铁行业的高质量绿色发展提供参考。     

A physico-chemical basis for novel cementitious binders

The drive towards sustainability in construction is shaping our attitudes towards alternatives to Portland cement. Although the cement and concrete industry is essentially sustainable with respect to raw materials supply, and concrete manufacture actually gives relatively low CO₂ emissions per unit volume compared to most competitive construction materials, the current focus on climate change has led to concerns about cement industry-generated CO₂. Thus, there is interest in developing alternative cements with lower associated CO₂ emissions. This paper seeks to provide a context for innovative development through a review of what is meant by a hydraulic cementitious binder, identification of key physico-chemical properties of successful binders and how novel systems generally rely on similar factors. Concepts such as reactivity, availability of reactive species and physico-chemical drivers for the formation of cementitious systems are discussed as a basis for introducing and reviewing recent developments in the search for ever more environmentally sustainable cements.     

燃煤电厂C02捕集技术与经济分析

随着全球CO2排放量的逐年递增,气候变化和CO2减排问题已经引起了世界性的关注。电厂CO2捕集技术研究也成了热点。主要对国内外燃煤电厂CO2捕集技术与经济分析作了综述,并对我国现运行的燃煤电厂碳捕集示范装置进行简要的技术与经济分析。