CO 2 Emission in China’s Iron and Steel Industry
01 Jan 2016-pp 341-354
TL;DR: In this article, the authors used material flow analysis (MFA) to analyze carbon flow from iron and steel production process, and the CO emissions of a typical enterprise were calculated, such as blast furnace top gas pressure recovery turbine (TRT), sintering waste heat power generation, converter low pressure saturated steam generation and so on.
Abstract: CO emissions have become a serious problem in China because of the country’s heavy reliance on fossil fuels as an energy source. The iron and steel industries, the energy consumptions of which are high compared to the rest of the world, are confronted with an increasing demand to reduce CO emissions. Data on CO emissions from iron and steel industries is a basic requirement for a certificate of CO reduction. By analyzing the production process and the influence factors of CO emissions during iron and steel production process, the scope of CO emissions were defined. Material Flow Analysis (MFA) was used to analyze carbon flow from iron and steel production process, and the CO emissions of a typical enterprise were calculated. The existing processing CO emissions reduction technologies were also analyzed, such as blast furnace top gas pressure recovery turbine (TRT), sintering waste heat power generation, converter low pressure saturated steam generation and so on. The technologies including blast furnace stock gas circulation technology, coke oven gas injection technology after reforming, carbon capture and storage technologies and so forth are considered to have a better prospect of application for CO emissions reduction.
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18 Jul 2019TL;DR: In this article, the main available technologies employed in the traditional or innovative routes capable of reducing the energy consumption and the dangerous greenhouse emissions are described taking into account the direct and indirect energy consumption per each analyzed technology.
Abstract: Steel demand is going to grow in the next future. With the present production routes, greenhouse gas emissions are destined to double by 2050 with a very remarkable effect on global warming. To face these problems, energy-efficient new ironmaking technologies must be employed and developed. Meeting the targets will require rapid and comprehensive implementation of mitigation technologies and measures that are commercially available today and emerging technologies that are still in the early phases of development. Among several greenhouse gases with different impacts on the air quality, CO2 is the main contributor accounting for about 60% of the greenhouse effect because of its huge and broad emission levels. Among all the industrial sectors, ironmaking and steelmaking one is calculated and measured to be the largest emitter of carbon dioxide and one of the users with largest energy demand. Obviously, the different adopted or to be developed solutions vary in different countries and regions because of fuels and materials supplies and prices. In addition, different government decisions and low limits drive the different choices. This chapter describes the main available technologies employed in the traditional or innovative routes capable of reducing the energy consumption and the dangerous greenhouse emissions. Being the limits of existing production techniques (mainly coal-based) reached, the development and implementation of new breakthrough technologies together with supportive energy infrastructure and services are required. Obviously the energy topic will be described taking into account the direct and indirect energy consumption per each analyzed technology. The methods to improve the energy efficiency are the energy consumption optimization, the online monitoring, and the energy audits.
45 citations
TL;DR: In this paper, the feasibility of using steelmaking slag to promote carbon neutral in the iron and steel industry is discussed in order to meet the challenges of the future, and challenges faced by the use of steel making slag for carbon dioxide sequestration and the prospects for the utilization of carbonated steelmaking SLAG are summarized.
Abstract: An ambitious goal has been set to limit global temperature increase within 1.5℃ above pre-industrial levels. Iron and steel industry as one of the main industrial sectors, has always been accompanied by high energy input and high carbon dioxide emissions. Carbon capture and storage is one of the important technologies for the iron and steel industry to achieve deep reduction of emissions. Economic and effective material for carbon dioxide sequestration is still a problem that needs to be solved. In order to meet the challenges of the future, the feasibility of using steelmaking slag to promote carbon neutral in the iron and steel industry is discussed in this study. The present work systematically reviews the carbonation of steelmaking slag from three aspects: the carbonation processes and mechanism of steelmaking slag; the effect of operational conditions on carbon dioxide sequestration ratio and reaction rate; and carbon dioxide sequestration capacity of different types of steelmaking slag. The results show that steelmaking slag has a great potential for carbon dioxide sequestration, which can reduce almost 12–17 % of carbon dioxide emissions from the iron and steel industry. Moreover, challenges faced by the use of steelmaking slag for carbon dioxide sequestration and the prospects for the utilization of carbonated steelmaking slag are summarized.
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01 Jan 2007
TL;DR: The first volume of the IPCC's Fourth Assessment Report as mentioned in this paper was published in 2007 and covers several topics including the extensive range of observations now available for the atmosphere and surface, changes in sea level, assesses the paleoclimatic perspective, climate change causes both natural and anthropogenic, and climate models for projections of global climate.
Abstract: This report is the first volume of the IPCC's Fourth Assessment Report. It covers several topics including the extensive range of observations now available for the atmosphere and surface, changes in sea level, assesses the paleoclimatic perspective, climate change causes both natural and anthropogenic, and climate models for projections of global climate.
32,826 citations
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01 Jan 1988
TL;DR: In this paper, the authors present a cross section of steel industry statistics and highlight the co operation of members and non members in supplying the information included in this publication, further details of the statistical sources used are given in the annex p 119.
Abstract: e china iworldsteel org worldsteel org preface this yearbook presents a cross section of steel industry statistics the co operation of members and non members in supplying the information included in this publication is gratefully acknowledged further details of the statistical sources used are given in the annex p 119, i china statistical yearbook 2018 is an annual statistical publication which reflects comprehensively the economic and social development of china it covers data for 2017 and key statistical data in recent years and some historically important years at the national level and the local levels of province autonomous region and municipality directly under the central government ii, the content of the statistical yearbook is oriented to serve a general readership the yearbook endeavours to provide information for various bodies of the united nations system as well as for other international organizations governments and non governmental organizations national statistical economic and social policy bodies scientific and educational institutions libraries and the public, summary china statistical yearbook 2011 is an annual statistical publication which covers data of 2010 and key statistical data in the most recent thirty years and some historically important years at the national level and the local levels of province autonomous region and municipality directly under the central government, in terms of demography education and health asean statistics also demonstrate the interconnectedness of the region in trade foreign direct investment and tourism among others every year the asean statistical yearbook asyb provides the regions latest statistical information on these social and economic indicators containing, china statistics amp facts the peoples republic of china prc is located in east asia governed by the communist party in the capital of beijing it has jurisdiction over 22 provinces five, 12 summary of key statistics category general survey region hong kong collected time 1
8,588 citations
TL;DR: In this article, the authors present an in-depth decomposition analysis of trends in CO 2 emissions in the iron and steel industry using physical indicators, in contrast to the mostly used monetary indicators.
215 citations
TL;DR: In this article, the authors proposed a new energy development approach with Chinese characteristics whose main elements are: energy-saving, high-efficiency, diversified development, environment protection, technology guidance and international cooperation.
Abstract: Energy, which has a bearing on both economic and national security, is of importance and a major constraining factor to the economic and social development of China The article analyses the current world energy status and development trend from the perspectives of resources, production and consumption and in the context of its implications on the environment and economic and social development, and explores opportunities and challenges for China’s energy development With a focus on the strategy of energy development in China, the author proposes a new energy development approach with Chinese characteristics whose main elements are: energy-saving, high-efficiency, diversified development, environment protection, technology guidance and international cooperation In other words, China is striving to build a reliable energy production, circulation and consumption system that is efficient, technologically advanced, low polluting and ecologically friendly A long-term development strategy with priority on energy conservation, efficient utilization of primary energy and advanced electricity system is expounded in the paper The author also describes the prospect of energy technology development and stresses the implementation of energy strategy by further improving energy policy and related mechanisms, strengthening macro-management and the essential role of the market in resource allocation so as to ensure the economic and social development of China through reliable energy supply
104 citations
TL;DR: Steel works faced increasing demand to minimize the emission of GHGs and CO2 emissions of COREX and blast furnace iron-making system were compared, it is point out that COREX contribute little to CO2 emission reduction.
Abstract: Steel works faced increasing demand to minimize the emission of GHGs. The CO2 emissions of COREX and blast furnace iron-making system were compared. It is point out that COREX contribute little to CO2 emission reduction. Comparing to conventional blast furnace iron-making system, direct CO2 emissions of COREX is higher. Considering the credits of export gases for power generation, the total CO2 emission of COREX have advantages only when the COREX is joined with high-efficiency generating units which efficiency is greater than 45% and CO2 emission factor of the grid is higher than 0.9 kgCO2/kWh.
30 citations