燃煤锅炉烟气脱硫技术的实践探索

控制二氧化硫的排放量,有助于改善我国的大气污染。因此,我国需要制定严格的控制二氧化硫排放的法律法规,并且需要限制高硫煤的开采,积极发展硫技术,加强对排污费用的征收管理。本文将主要围绕燃煤锅炉烟气脱硫技术的实践展开论述。     

燃煤火电机组SO2超低排放改造方案研究

本文结合国内外脱硫技术发展情况,针对燃煤火电机组石灰石和石膏湿法脱硫装置进行二氧化硫超低排放技术分析,给出不同方案和以及具体的应用情况,对使用不同硫份燃煤机组提出了有效的二氧化硫低排放技术改造方案和有关建议,希望能给相关工作人员提供帮助。     

浅析我国燃煤燃前脱硫技术的应用现状与展望

我国是目前世界上最大的煤炭生产国和消费国,而煤炭燃烧造成的污染异常严重。每年我国大气中的二氧化硫含量90%是来自于燃煤排放的,而二氧化硫的排放又会造成酸雨,对人类及生态环境会造成极为严重的危害,为此国家大力开发的低炭、洁净能源,水力发电、油、气等资源得到迅速发展。作为煤炭生产企业,应从可持续发展的战略观点出发,积极推行煤脱硫技术,减少二氧化硫的排放,保护生态环境。本文将对燃煤的燃前脱硫技术的应用现状做一分析,并对未来的发展提出自己浅显的看法。     

浅谈燃煤电厂脱硫与环保

能源的发展和使用将会对环境有不同层次的伤害,能够造成空气污染的重要有害物质的其中之一就是燃煤电厂排泄放出的二氧化硫,我国能源环境方面所出现的一些缺陷已经变成了马上需要被解决的实际和决策性的问题。由于我国把环境保护作为基本国策之一给实施执行,电力行业产生了大部分的二氧化硫,所以,电力行业就成为了减少二氧化硫排放量的主要行业,燃煤电厂作为传统的发电厂,去硫工艺也有了巨大的进步。本文说明了脱硫工艺对于环境保护的重要意义,介绍了几种脱硫技术,希望能够起到借鉴意义。     

火电厂烟气脱硫技术应用概述

我国二氧化硫排放总量居世界首位，火电行业二氧化硫排放量占我国二氧化硫排放量的50％左右。我国能源结构的特点决定了燃煤生产的二氧化硫仍要增加。随着环境标准提高，石灰石-石膏法、喷雾干燥法、电子束法、循环流化床烟气脱硫法等必定会广泛应用于火电厂的烟气脱硫中，随着科技进步会有很多其它脱硫工艺应用于工业实践。     

燃煤锅炉烟尘治理方法及脱硫技术的选择比较

论文简单介绍了燃煤锅炉烟气排放的主要危害,阐述了燃煤锅炉烟尘和二氧化硫的常用治理方法,对湿法脱硫相关技术进行了技术经济比较,希望在选择烟尘治理方法及脱硫技术时可以提供一些参考作用。     

电厂锅炉烟气脱硫工艺的经济分析

烟气脱硫是控制燃煤电厂二氧化硫污染的重要措施。目前,国内外已开发出数百种各具特点的烟气脱硫技术。由于烟气脱硫是涉及技术、经济、资源、环境等多因素、多目标的复杂问题,具体评价指标既有定量的又有定性的。如何根据燃煤电厂的实际情况,合理选用这些定性和定量的指标,建立一套比较完善和实用的分析与评价体系,对烟气脱硫技术进行多指标、多层次的综合评价,科学地优选先进、经济、实用的烟气脱硫技术,是控制燃煤电厂二氧化硫排放迫切需要解决的一个问题。现主要对FGD的投资、运行维护费用和脱硫成本这三个方面来分析。     

DCS在火力发电厂脱硫系统中的应用及实施

随着现代科技的不断发展和进步,DCS开始被应用在各行各业。火力发电厂发电的主要途径是燃煤,而燃煤过程中有害气体的排放是难以避免的,尤其是二氧化硫,若无法有效控制及处理排放的有害气体,将会对大气造成极为严重的污染。基于此,本文探讨了DCS在火力发电厂脱硫系统中的应用及实施,并说明了系统运行的效果。     

巧用AO技术查证发电企业多得脱硫电价款

对燃煤发电机组执行脱硫电价政策,是国家为减少二氧化硫排放,实施环境保护的一项重大措施。根据国家有关规定,燃煤机组应按照要求安装脱硫设施,限期完成脱硫改造,烟气脱硫设施必须达到环保要求的脱硫效率,并确保达到二氧化硫排放标准和总量指标要求,否则,其上网电量不得享受脱硫加     

DCS在火力发电厂脱硫系统中的应用分析

随着经济的发展和科技的进步,DCS的应用范围日益广泛。火力发电厂通过燃煤进行发电,在这一过程中会产生大量的二氧化硫等有害气体,如果不加以处理就进行排放将对大气造成严重的污染,诱发酸雨等自然灾害。文章对DCS在火力发电厂脱硫系统实际应用中的相关问题进行了探讨。     

Development in Information and Communications Technology (ICT) Statistics at the Australian Bureau of Statistics

This paper outlines the ICT statistical developments that the ABS has undertaken over recent years. These developments have been on both the supply side (ICT industry) and the demand side (use of IT by sector). The content of ABS ICT surveys has changed significantly over the last few years and are expected to develop further in line with industry changes and emerging policy needs.
Recent developments in household collections have been the inclusion of IT use questions in the 2001 Census of Population and Housing and in various ABS social surveys such as Children's Participation in Culture and Leisure Activities. Annual business IT use surveys are now conducted and include topics such as Internet commerce and IT security. Biennial ICT industry surveys are conducted to provide data on ICT production, imports and exports, ICT industry employment, performance and structure information. An Internet activity survey is run every six months and provides regional Internet access details and infrastructure details on Internet service providers.
A major development for 2002–03 will be the compilation of an ICT satellite account. ABS intends to produce an ICT Information Development Plan to guide its future statistical development work in the ICT field.     

Incumplimiento del salario mínimo en Europa central y oriental

En este estudio se analiza el incumplimiento del salario mínimo durante el periodo 2003–2012 en diez países de Europa central y oriental con salario mínimo obligatorio nacional. A partir de los datos de EU‐SILC y la metodología propuesta por Bhorat, Kanbur y Mayet (2013), se cuantifica la incidencia y magnitud del incumplimiento. Se realizan análisis de regresión sobre determinantes individuales, laborales y macroeconómicos. Aunque la incidencia permanece relativamente baja, los trabajadores a los que se dirigen las políticas de salario mínimo parecen los más expuestos a su incumplimiento. Con el tiempo, una mayor incidencia se asocia a una razón más alta entre salario mínimo y salario medio.     

Value at Risk in the Suburbs: Eminent Domain and the Geographical Politics of the US Foreclosure Crisis

Several US counties and local governments have recently considered a novel solution to the foreclosure crisis. They plan to use eminent domain to compel the owners of mortgage debt—and specifically of private‐label mortgage‐backed securities—to sell the debt to the government at a price reflecting the loan's market value. The government would then restructure the debt and resell it to new investors. The plans are striking because—in contrast to both development‐driven eminent domain and the federal subprime bank bailout—they would force investors to assume asset devaluation and increased long‐term risk. Notably, the plans have emerged as an instance of financialization‐focused politics in suburbs and suburban cities of color, specifically majority‐black and ‐Latino/a suburbs. Local support for the plans, we argue, is rooted in the long‐term disinvestment of these ‘suburbs of exception', which became targets of subprime lending and eventually sites where the ‘financial exception' has been localized. But these demographic shifts, fragmentation and fiscal pressures have at the same time created a suburban political terrain in which the plans have gained their strongest political support.     

Towards a Theory of Serendipity: A Systematic Review and Conceptualization

Serendipity – the notion of making surprising and valuable discoveries – plays a major role in the success of individuals and organizations alike. Previous research has established the importance of serendipity and identified important individual- and organizational-level antecedents. However, the literature has been dispersed and the boundaries of the concept have been blurry, leading to a lack of conceptual clarity and structure, and thus limiting validity and managerial actionability. Based on a systematic literature review, I synthesize existing management-related research on serendipity and explicate the emergence and composition of serendipity in the organizational context. I first identify three necessary conditions that differentiate serendipity from related concepts such as luck or targeted innovation: agency, surprise, and value. Then, I draw from the literature on sensemaking, event-based theorizing, and quantum-based approaches to management to conceptualize the process of cultivating serendipity in the organizational context as a process of enabling potentiality and materialization, and develop a multi-level theory of (cultivating) serendipity. This conceptualization contributes to our collective understanding of how, why, and when (i.e., under what conditions) organizations can leverage the value in the unexpected, which opens up fruitful avenues for further research.     

Accountability of NGOs in Bangladesh A critical overview

NGOs in Bangladesh have been recognized as effective change agents in the socio-economic arena throughout the world. Their contributions in micro credit, non-formal education and primary health care are widely known. NGOs play a significant role in society. NGO accountability, as a result, has become a critical issue. NGO accountability in Bangladesh has been examined here in relation to patrons, clients and themselves. Of the three relationships only accountability to patrons is in a near satisfactory state. Accountability to clients is handicapped by lack of opportunities of beneficiaries to participate meaningfully in NGO policy making. Accountability to themselves is adversely affected due to the adherence to a strictly hierarchical system and the influence of founding and charismatic NGO leaders.     

Towards an Asian model of human resource management? A comparative analysis of China,Japan and South Korea

There has been much discussion regarding the possible decline and weakening of national systems of human resource management (HRM). Yet, culture and institutions are often cited as the major stumbling blocks to this outcome. Such constraints may dissipate in the analysis, particularly if ‘regional clusters’ are considered where geographic and cultural closeness and ‘openness’ to similar economic pressures exist. In such cases, it might be postulated that convergence in HRM will occur. We argue that China, Japan and South Korea represent such a cluster. This article examines these countries, to see if a degree of convergence is taking place and if it is towards an identifiable ‘Asian’ model of HRM. A model of change is presented that distinguishes between levels of occurrence and acceptance. Details of the development and practice of HRM in each country are then set out. The article ends with a discussion and implications section and a brief conclusion.     

Ansätze und Ergebnisse anglo-amerikanischer M&A-Forschung

Based on a review of established U.S. management journals (1995–2003), six schools of thought are identified within the Anglo-American M&;A research: “Capital Market”, “Principal/Agent”, “Industrial Organization”, “Organizational Behavior”, “Human Resources” and “Strategic Management”. The literature review shows that the definition of M&;A success, the methods applied, and insights from empirical research differ according to the respective school of thought. Empirical studies focus on the resource combinations of merger partners, the specific circumstances of merger negotiations, and on integration management as antecedents of merger performance. Unfortunately, empirical findings have not yet provided reliable explanations for M&;A success. Based on the current state of Anglo-American M&;A research, the authors discuss implications for business practice, identify research gaps, and propose areas for future research.     

Cultural Economy Planning in Creative Cities: Discourse and Practice

While a growing body of research analyses the functional mechanisms of the cultural or creative economy, there has been little attention devoted to understanding how local governments translate this work into policy. Moreover, research in this vein focuses predominately on Richard Florida's creative class thesis rather than considering the wider body of work that may influence policy. This article seeks to develop a deeper understanding of how municipalities conceptualize and plan for the cultural economy through the lens of two cities held up as model ‘creative cities’ — Austin, Texas and Toronto, Ontario. The work pays particular attention to how the cities adopt and adapt leading theories, strategies and discourses of the cultural economy. While policy documents indicate that the cities embrace the creative city model, in practice agencies tend to adapt conventional economic development strategies for cultural economy activity and appropriate the language of the creative city for multiple purposes.     

Introduction of New Technology with a Sound Transition of the Input-Output Structure

We examine the general equilibrium repercussions associated with the introduction of new technologies, using the generalized Leontief system that allows technological substitutions. We show that an untested introduction of cost-increasing technologies in any industry may result in creating a non-productive technological structure that does not satisfy the Hawkins-Simon condition, following the autonomous dynamic adjustment process with structural transitions in the economic system. Therefore, we propose a practicable control scheme of introducing cost-increasing technologies that strictly avoids the creation of non-productive structures in all periods of structural transition, using the available information on the ex ante technological structure.     

Input/output ranges and performance: an examination of US machine tool producers

Despite the establishment of high-tech multinational enterprises (MNEs) in Ireland since the late 1950s, the country did not succeed in closing the technological gap with most of its EU counterparts. The weak National System of Innovation (NSI), and in particular low business and government R&D levels, combined with a lack of research and technology linkages between MNEs and indigenous firms, explain these poor results. However, the Shannon region in the West of the country presents some specific institutional characteristics that could theoretically make the region a strong technological enclave. The various actors in the region - i.e. the administrative, financial, political and research institutions, as well as the business organizations - have indeed infused a new type of economic development. After a brief review of the available concepts and models articulated around these actors and their interrelationships, the paper analyses whether the Shannon region, taken as an illustrative example, mirrors a specific economic and technological localized setting. The study is based on a survey of indigenous and foreign firms.