广西碳酸钙千亿元产业示范基地40个项目开竣工

<正>跟踪报道:2012年碳酸钙千亿元产业纳入自治区发展计划,2014年10月贺州"碳酸钙千亿元产业示范基地"风生水起北部湾,2015年1月40个项目踏实落地,步履之间展现了地方政府对工业循环经济的重视,随着政府及有关主管部门的大力宣传,循环经济已潜移默化地影响着周边企业……1月19日,位于贺州市平桂管理区的广西碳酸钙千亿元产业示范基地40个重大项目集中开(竣)工,这标志着该基地项目建设取得了新的重大突破。     

政策信息

<正>国家发展和改革委员会办公厅、财政部办公厅、教育部办公厅、国家旅游局办公室联合就关于印发循环经济发展专项资金支持国家循环经济教育示范基地建设实施方案发出通知为加强循环经济理念宣传,推广循环经济典型模式,通过循环发展带动绿色发展和低碳发展,加快     

金东纸业(江苏)股份有限公司

<正>金东纸业(江苏)股份有限公司(简称金东纸业)地处长江第三大港——江苏省镇江大港,于1997年5月18日正式成立,占地5.33 km,现有员工5 200余人,总投资为35.1亿美元,年产铜版纸达200万t以上,已成为世界单厂规模最大的铜版纸生产企业之一。作为金光集团APP中国的旗舰企业,金东纸业秉承集团永续经营的理念,不断实践着循环经济和绿色造纸,走出了一条可持续发展的新型工业化道路。近年来,金东纸业所做的努力得到了中国各级政府的充分肯定,2006年12月金东纸业被评为"2006中国企业社会责任调查最具社会责任感"前50家优秀企业,并获得特别单项奖"循环经济贡献奖"。2007年,金东被国家旅游总局评为"工业旅游示范点"(造纸行业第一家)。2011年1月,金东通过中国环境标志(II型)产品认证。2012年被列为国家"资源节约型环境友好型企业"首批创建试点企业。2013年被评为国家重点行业"清洁生产示范企业"。     

乔琦谈清洁能源:实现节能减排与增效双赢

<正>乔琦现任中国环境科学院副总工程师、清洁生产与循环经济创新基地首席专家。近年来围绕建设资源节约型、环境友好型社会的新时期目标,结合环境保护重点工作,在清洁生产和循环经济领域开展了大量的研究工作。特别是根据国家经济发展和环境保护的需求,通过生态工业和全过程污染防治的理论、方法和实践等方面研究,为构建我国生态工业和循环经济实施机制及途径发挥了基础性的科技支撑作用。现兼任中国环保产业协会循环经济专业委员会秘书长、九三学社中央     

我国将大力发展循环经济

正我国将积极推进循环经济试点建设,通过竞争方式确定18个园区实施循环化改造示范,开展餐厨废弃物资源化利用和无害化处理,进行国家"城市矿产"示范基地试点的终期验收。印发《关于加快发展农业循环经济的指导意见》,建立     

云南确定循环经济五年发展目标

在云南省重点行业发展循环经济试点经验交流会上获悉，云南将用5年时间在全省重点企业、行业和区域开展循环经济试点，并以循环经济理念指导和推进10个重点行业、30个工业园区和7个工业基地的发展与建设，同时抓好200个村庄、1万户农户循环经济示范，以带动农业循环经济的发展。     

山西建设国家新型能源和工业基地的思考

本文分析了山西在建设国家新型能源和工业基地中面临的主要问题,提出了发展循环经济、建设国家新型能源和工业基地的思考及建议。     

九家单位入选首批国家循环经济教育示范基地

正日前,国家发展改革委、教育部、财政部和国家旅游局公布了首批国家循环经济教育示范基地名单,北京德青源农业科技股份有限公司等9家单位入选。近年来,循环经济在我国取得了积极进展。短短几年时间,循环经济从理念变为行动,在全国范围内得到迅速发展,在理论上、实践上、政策     

创新种植能源模式 发展循环经济 心系国计民生

凯迪阳光生物能源投资有限公司（简称“凯迪阳光”）是在北京注册的股份制高新技术企业。凯迪阳光以“低碳经济”为核心,形成了一套完整的循环经济体系,以一种崭新的经济发展模式运营。凯迪绿色生物能源项目群,包括相互依存的五大循环经济项目：能源林基地、生物燃油燃气厂、生物质热电厂、有机肥料厂、有机农产品生产基地,共涉及两个农业系统和三个工业系统,以工业为支柱,工业带动农业,形成了一个涵盖新能源工业、绿色生态农业和林业的循环经济体系。     

我国《煤炭工业发展“十二五”规划》发展目标

2012年3月22日国家能源局对外发布了《煤炭工业发展"十二五"规划》,其中主要发展目标摘录如下:到2015年,煤炭调整布局和规范开发秩序取得明显成效,生产进一步向大基地、大集团集中,现代化煤矿建设取得新进展,安全生产状况显著好转,资源回采率明显提高,循环经济园区建设取得重大进展,矿区生态环境得到改善,企业"走     

Organizing prosumers into electricity trading communities: Costs to attain electricity transfer limitations and self‐sufficiency goals

Among household electricity end users, there is growing interest in local renewable electricity generation and energy independence. Community‐based and neighborhood energy projects, where consumers and prosumers of electricity trade their energy locally in a peer‐to‐peer system, have started to emerge in different parts of the world. This study investigates and compares the costs incurred by individual households and households organized in electricity trading communities in seeking to attain greater independence from the centralized electricity system. This independence is investigated with respect to: (i) the potential to reduce the electricity transfer capacity to and from the centralized system and (ii) the potential to increase self‐sufficiency. An optimization model is designed to analyze the investment and operation of residential photovoltaic battery systems. The model is then applied to different cases in a region of southern Sweden for year 2030. Utilizing measured electricity demand data for Swedish households, we show that with a reduced electricity transfer capacity to the centralized system, already a community of five residential prosumers can supply the household demand at lower cost than can prosumers acting individually. Grouping of residential prosumers in an electricity trading community confers greater benefits under conditions with a reduced electricity transfer capacity than when the goal is to become electricity self‐sufficient. It is important to consider the local utilization of photovoltaic‐generated electricity and its effect on the net trading pattern (to and from the centralized system) when discussing the impact on the electricity system of a high percentage of prosumers.     

柴油发电机余热在海岛能源供应中的应用研究

[目的] 当前,我国大部分海岛主要通过配备柴油发电机来提供电力供应,这种供能形式存在供能成本高昂、能源利用效率低下等问题。为解决海岛供能存在的问题。 [方法] 从分布式供能的角度出发,针对某海岛的能源需求现状,设计了综合利用该海岛柴油发电机余热的方案。 [结果] 研究表明：该方案提高了能源的利用效率,有效减轻了海岛的供能压力,且减少约20%的制冷成本。 [结论] 所提出的方案有利于能源效率的提高,且具有投资经济性,对改善海岛生产生活条件,具有重大的现实意义。     

节能是能源工作者永恒的主题

改革开放20多年来,我国已成为能源生产与消费大国,资源与环境的承载压力越来越大。最近几年全国性缺电拉闸限电,制约着社会经济的发展与人民生活的提高。为实现全面建设小康社会,能源供应只能一半靠开发,一半靠节约。     

我国应加快改进电力交易和调度方式

我国电力交易方式和调度方式仍存在较强的计划经济色彩,这是导致近一时期煤电矛盾的重要原因。文章建议,改进电力交易方式,实行发电方与用电方直接交易,电网收取合理的过网费;改进电力调度方式,实行按机组能耗由低到时依次上网。实施这两项措施,有利于理顺煤电供求关系,节约大量电煤资源,大幅度降低工商企业用电成本,并在很大程度上减小CPI上涨压力。     

电厂废水在选煤系统中废水资源化研究

为实现矿区的循环经济发展,资源利用的最大化,通过小浮选试验,煤泥沉降试验,浮选系统生产效果试验等,成功将电厂的高盐废水应用于选煤补水系统中,不仅减少了电厂废水的排放,实现了废水的资源化利用,体现了社会效益、经济效益,环境效益的统一。     

Energy consumption with sustainable development in developing country: a case in Jiangsu, China

Jiangsu is one of the provinces in China that have great population density and fast economic development. Therefore it is important to ensure large quantity of stable and high-quality energy supply for its development. With the development of the economy, the demand for energy is increasing very fast while the energy supply is going short. The supply of the local primary energy is only 23% of the demand. The final energy consumption reaches 78 Mtce (1 tce=7,000,000 kcal), among which the industry and construction account for 78%. Though the total consumption is large, the energy consumption per capita is only 1.13 tce, the electricity consumption per capita 1017 kW, and the household electricity consumption per capita is 138 kW. Coal accounts for about 76% of the total energy consumed. This paper discusses utilization ratio of energy and the serious pollution caused by energy consumption.     

Can distributed generation offer substantial benefits in a Northeastern American context? A case study of small-scale renewable technologies using a life cycle methodology

Renewable distributed electricity generation can play a significant role in meeting today's energy policy goals, such as reducing greenhouse gas emissions, improving energy security, while adding supply to meet increasing energy demand. However, the exact potential benefits are still a matter of debate. The objective of this study is to evaluate the life cycle implications (environmental, economic and energy) of distributed generation (DG) technologies. A complementary objective is to compare the life cycle implications of DG technologies with the centralized electricity production representing the Northeastern American context. Environmental and energy implications are modeled according to the recommendations in the ISO 14040 standard and this, using different indicators: Human Health; Ecosystem Quality; Climate Change; Resources and Non-Renewable Energy Payback Ratio. Distinctly, economic implications are modeled using conventional life cycle costing. DG technologies include two types of grid-connected photovoltaic panels (3 kWp mono-crystalline and poly-crystalline) and three types of micro-wind turbines (1, 10 and 30 kW) modeled for average, below average and above average climatic conditions in the province of Quebec (Canada). A sensitivity analysis was also performed using different scenarios of centralized energy systems based on average and marginal (short- and long-term) technology approaches. Results show the following. First, climatic conditions (i.e., geographic location) have a significant effect on the results for the environmental, economic and energy indicators. More specifically, it was shown that the 30 kW micro-wind turbine is the best technology for above average conditions, while 3 kWp poly-crystalline photovoltaic panels are preferable for below average conditions. Second, the assessed DG technologies do not show benefits in comparison to the centralized Quebec grid mix (average technology approach). On the other hand, the 30 kW micro-wind turbine shows a potential benefit as long as the Northeastern American electricity market is considered (i.e., oil and coal centralized technologies are affected for the short- and long-term marginal scenarios, respectively). Photovoltaic panels could also become more competitive if the acquisition cost decreased. In conclusion, DG utilization will represent an improvement over centralized electricity production in a Northeastern American context, with respect to the environmental, energy and economic indicators assessed, and under the appropriate conditions discussed (i.e., geographical locations and affected centralized electricity production scenarios).     

供热机组特性系数及其在折算效率研究中的应用

由于供热机组联合供应电能和热能两种不同质量的能量，对于供热机组的经济性评价尚无完善的评价体系，现行的评价方法虽然从不同的侧面表现了供热机组的经济性，但使用不便，计算复杂，特别是可比性不强。以循环函数为基础，利用供热汽流的综合特性系数，将供热抽汽的能量折算为凝汽机组进汽量、作功量和排汽量，进而在折算特性的基础上以凝汽机组的性能指标分析供热机组的运行经济性。计算实例表明：这种折算特性具有物理意义明确、计算简便等优点，可以用于评价供热机组的运行经济性。     

新能源发展研究

总结提出新能源4个特性:能量密度低,供能过程具有随机性和间歇性,不能大规模储存,经济性尚不具备竞争力.结合国内外新能源开发方式及现状,对比新能源在电价和电量及电网企业收益,提出在全国推行新能源“自发自用”模式,并对“能量块”与“能量膜”开发利用方式进行比较,论述了新能源开发思路、开发方式,提出开发利用新能源既要有积极的进取精神,也要有很强的责任感.     

Energy conservation and circular economy in China's process industries

Since energy consumption in process industries accounts for a great proportion of China's total energy consumption, energy conservation becomes the practical choice to reduce the conflict between energy demand and energy supply in China, and therefore, promoting energy conservation is the long-term solution to China's energy and environment problems from the source. In this paper, based on the introduction of the concept of energy consumption status in China's key energy-consuming process industries, the main technical bottlenecks and resource-environment problems were analyzed with special emphasis on energy utilization efficiency, energy consumption mode, and waste emission. As for the measures to resolve these problems, at the policy level, policies and programs of Chinese government related to energy conservation were introduced in combination with China's circular economy structure. At the technical level, the key technologies and research progress to improve energy utilization efficiency, reducing energy consumption, as well as utilizing the resource of discharged wastes were reviewed. Finally, three typical cases of the development of circular economy at three levels, namely the chemical industry, metallurgical industry, and electric power industry, were studied for the enforcement of circular economy and energy conservation in China's process industries.