连续流化催化精馏与间歇精馏制备乳酸乙酯的对比研究

乳酸乙酯具有无毒、溶解性好、不易挥发、有果香气味等特点,是极具开发价值和应用前景的"绿色溶剂"。由于乳酸乙酯的特性,国内外学者渐渐致力于开发更高效更环保的制备方法。连续流化催化精馏是利用乳酸和乙醇酯化、粉末状大孔强酸性交换树脂作为催化剂,随反应物流动的连续催化精馏方式,是一种更优的高效而环保的乳酸乙酯生产方式。首次利用连续流化催化精馏制备乳酸乙酯,并旨在研究连续流化催化精馏与间歇精馏制备乳酸乙酯的对比来突出前者的优势,对连续流化催化精馏的产物进行精馏提纯,得到更高纯度的乳酸乙酯,为连续流化催化精馏制备乳酸乙酯的优势提供了可靠的理论依据,并在食品工业等高纯度要求的工业中的运用起到了推进作用。     

2011年建材及非金属矿采选业行业发展分析

2011年建材工业生产增长速度保持平稳,产业结构继续优化,经济效益提高。本文首先讨论了2011年建材工业经济及非金属矿采选行业经济运行情况,做到调整建材及非金属矿选行业产业结构,提高经济运行质量,预测了2012年建材及非金属矿选行业未来发展趋势,最后提出促进建材及非金属矿选行业发展的政策建议。     

拓展省地节能环保型住宅建设思路 全面系统构建四节一环保技术体系

根据中国国情,发展节能省地型住宅符合我国住宅建设模式的总目标.指出了改变住宅建设的生产方式和增长方式是目前亟待解决的问题,提出了构建节能省地环保型住宅"四节一环保"技术体系、住宅建筑节能4个系统及其住宅建设环境保护体系的技术措施,并根据夏热冬冷地区环境特点提出需要推广的10项技术,从6个方面给出了住宅建设的思考.     

污泥发酵产物在园林绿化领域的应用潜力与问题

对好氧发酵处理后的污泥发酵产物在园林绿化领域的应用必要性和潜在需求进行了分析,特别对在城市园林绿化领域应用的前景和存在问题进行了梳理。污泥发酵产品的质量控制和生产、采购上的政策支持是推动其在城市园林绿化领域快速发展的关键所在。     

《城市轨道交通建设项目管理规范》GB50722—2011编制与介绍

《城市轨道交通建设项目管理规范》GB50722—2011作为我国首部城市轨道交通建设项目管理规范,其颁布实施标志着我国城市轨道交通工程建设项目管理步入了一个新阶段。系统介绍了本规范的编制背景、指导思想、编制过程,并对规范的主要内容、实施要点和可能存在的问题进行详细介绍、解读、分析与讨论。     

中国城市化进程中的规划节能问题

中国城市化面临着环境和资源的巨大挑战。城市节能问题是多个领域交错的综合问题,仅靠建筑节能或单个领域的节能是无法根本解决的,而是需要在城市规划层面上权衡、统筹和协调。本文指出了中国城市发展中的特点,提出了规划节能的主要技术措施,包括产业结构的确定和节能目标的设定,紧凑型、集约型和混合型的空间形态,节能型城市基础设施(能源总线系统),城市气候设计以及以节能为基础的规划理念。     

建筑企业信息化发展模式研究

建筑企业信息化是建筑业信息化的中坚,也是国民经济信息化的重要组成部分。本文介绍了"十一五"建筑企业信息化发展的现状,根据建设行业"十二五"发展规划,提出了建筑企业信息化建设的指导思想、建设目标,阐述了"十二五"建筑企业信息化发展的基本思路和主要建设内容,并给出了相关建议。     

Government regulation and associated innovations in building energy-efficiency supervisory systems for large-scale public buildings in a market economy

The supervision of energy efficiency in government office buildings and large-scale public buildings is the main embodiment for government implementation of Public Administration in the fields of resource saving and environmental protection. Aimed at improving the current situation of lack of government administration in building energy efficiency, this paper proposes the concept of “change and redesign of governmental supervision in building energy efficiency”, repositioning the role of government supervision. Based on this theory and other related theories in regulation economic and modern management, this paper analyzes and researches the action and function of all level governments in execution of the supervisory system of building energy efficiency in government office buildings and large-scale public buildings. This paper also defines the importance of government supervision in energy-efficiency system. Finally, this paper analyzes and researches the interaction mechanism between government and owners of different type buildings, government and energy-efficiency service institution with gambling as main features. This paper also presents some measurements to achieve a common benefit community in implementation of building energy-efficiency supervisory system.     

Implementing effect of energy efficiency supervision system for government office buildings and large-scale public buildings in China

The Chinese central government released a document to initiate a task of energy efficiency supervision system construction for government office buildings and large-scale public buildings in 2007, which marks the overall start of existing buildings energy efficiency management in China with the government office buildings and large-scale public buildings as a breakthrough. This paper focused on the implementing effect in the demonstration region all over China for less than one year, firstly introduced the target and path of energy efficiency supervision system, then described the achievements and problems during the implementing process in the first demonstration provinces and cities. A certain data from the energy efficiency public notice in some typical demonstration provinces and cities were analyzed statistically. It can be concluded that different functional buildings have different energy consumption and the average energy consumption of large-scale public buildings is too high in China compared with the common public buildings and residential buildings. The obstacles need to be overcome afterward were summarized and the prospects for the future work were also put forward in the end.     

Government management and implementation of national real-time energy monitoring system for China large-scale public building

The supervision of energy efficiency in government office buildings and large-scale public buildings (GOBLPB) is the main embodiment for government implementation of Public Administration in the fields of resource saving and environmental protection. It is significant for China government to achieve the target: reducing building energy consumption by 11 million ton standard coal before 2010. In the framework of a national demonstration project concerning the energy management system, Shenzhen Municipality has been selected for the implementation of the system. A data acquisition system and a methodology concerning the energy consumption of the GOBLPB have been developed. This paper summarizes the various features of the system incorporated into identifying the building consumes and energy saving potential. This paper also defines the methods to achieve the real-time monitoring and diagnosis: the meters installed at each building, the data transmitted through internet to a center server, the analysis and unification at the center server and the publication through web. Furthermore, this paper introduces the plans to implement the system and to extend countrywide. Finally, this paper presents some measurements to achieve a common benefit community in implementation of building energy efficiency supervisory system on GOBLPB in its construction, reconstruction or operation stages.