The Experts below are selected from a list of 2679 Experts worldwide ranked by ideXlab platform

Tsuyoshi Fujita - One of the best experts on this subject based on the ideXlab platform.

  • analysis of low carbon industrial symbiosis technology for carbon mitigation in a chinese iron Steel industrial park a case study with carbon flow analysis
    2013
    Co-Authors: Hui Zhang, Liang Dong, Huiquan Li, Tsuyoshi Fujita, Satoshi Ohnishi, Qing Tang
    Abstract:

    CO2 mitigation strategies in industrial parks are a significant component of the Chinese climate change mitigation policy, and industrial symbiosis can provide specific CO2 mitigation opportunity. Technology is important to support symbiosis, but few studies in China have focused on this topic at the industrial park level. This research presented a case study in a national iron and Steel industrial park in China. Focus was given onto carbon mitigation through industrial symbiosis technology using substance flow analysis (SFA). Three typical iron and Steel industry technologies, including coke dry quenching (CDQ), combined cycle power plant (CCPP), and CO2 capture by slag carbonization (CCSC) were evaluated with SFA. Technology assessment was further conducted in terms of carbon mitigation potential and unit reduction cost. Compared with the Business as usual (BAU) scenario, application with CDQ, CCPP, and CCSC reduced the net carbon emissions by 56.18, 134.43, and 222.89kg CO2 per ton Crude Steel inside the industrial parks, respectively, including both direct and indirect emissions. Economic assessment revealed that the unit costs for the three technologies were also high, thereby necessitating national financial support. Finally, relevant policy suggestions and future concerns were proposed and discussed.

  • analysis of low carbon industrial symbiosis technology for carbon mitigation in a chinese iron Steel industrial park a case study with carbon flow analysis
    2013
    Co-Authors: H Zhang, Liang Dong, Tsuyoshi Fujita, Satoshi Ohnishi, Qing Tang
    Abstract:

    CO2 mitigation strategies in industrial parks are a significant component of the Chinese climate change mitigation policy, and industrial symbiosis can provide specific CO2 mitigation opportunity. Technology is important to support symbiosis, but few studies in China have focused on this topic at the industrial park level. This research presented a case study in a national iron and Steel industrial park in China. Focus was given onto carbon mitigation through industrial symbiosis technology using substance flow analysis (SFA). Three typical iron and Steel industry technologies, including coke dry quenching (CDQ), combined cycle power plant (CCPP), and CO2 capture by slag carbonization (CCSC) were evaluated with SFA. Technology assessment was further conducted in terms of carbon mitigation potential and unit reduction cost. Compared with the Business as usual (BAU) scenario, application with CDQ, CCPP, and CCSC reduced the net carbon emissions by 56.18, 134.43, and 222.89 kg CO2 per ton Crude Steel inside the industrial parks, respectively, including both direct and indirect emissions. Economic assessment revealed that the unit costs for the three technologies were also high, thereby necessitating national financial support. Finally, relevant policy suggestions and future concerns were proposed and discussed. (C) 2013 Elsevier Ltd. All rights reserved.

  • investigation of the residual heat recovery and carbon emission mitigation potential in a chinese Steelmaking plant a hybrid material energy flow analysis case study
    2013
    Co-Authors: Hui Zhang, Liang Dong, Huiquan Li, Bo Chen, Qing Tang, Tsuyoshi Fujita
    Abstract:

    Abstract As an energy intensive industry, China’s iron/Steel industry faces the challenge of energy conservation and carbon emission reduction. Energy efficiency, especially residual heat recovery is a critical issue. China is promoting a circular economy strategy in the iron/Steel industry, technology upgrading and industrial symbiosis make the material and energy flows more complicated. In order to quantify the energy flows and the related residual heat recovery and carbon emission mitigation potential, this study proposes a hybrid material and energy flow analysis approach at company level. We analyze the material based energy flow routes and the transformation rules. Then, we develop an evaluation index to evaluate the specific energy consumption (SEC) and direct carbon dioxide (CO 2 ) emissions (DCE). Furthermore, a case study is conducted in a 10 million ton/year Steelmaking plant in northern China. Results verified the effectiveness of the proposed approach. According to the results, the residual heat and carbon emission is mapped out graphically. Results highlight that the case company has 4.87 GJ/tons of Crude Steel residual heat recovery potential, equal to 26.08% of the total energy consumption. Finally, policy implications on the ever-improvement of residual heat utilization and the future research concerns are proposed and discussed.

Liang Dong - One of the best experts on this subject based on the ideXlab platform.

  • analysis of low carbon industrial symbiosis technology for carbon mitigation in a chinese iron Steel industrial park a case study with carbon flow analysis
    2013
    Co-Authors: Hui Zhang, Liang Dong, Huiquan Li, Tsuyoshi Fujita, Satoshi Ohnishi, Qing Tang
    Abstract:

    CO2 mitigation strategies in industrial parks are a significant component of the Chinese climate change mitigation policy, and industrial symbiosis can provide specific CO2 mitigation opportunity. Technology is important to support symbiosis, but few studies in China have focused on this topic at the industrial park level. This research presented a case study in a national iron and Steel industrial park in China. Focus was given onto carbon mitigation through industrial symbiosis technology using substance flow analysis (SFA). Three typical iron and Steel industry technologies, including coke dry quenching (CDQ), combined cycle power plant (CCPP), and CO2 capture by slag carbonization (CCSC) were evaluated with SFA. Technology assessment was further conducted in terms of carbon mitigation potential and unit reduction cost. Compared with the Business as usual (BAU) scenario, application with CDQ, CCPP, and CCSC reduced the net carbon emissions by 56.18, 134.43, and 222.89kg CO2 per ton Crude Steel inside the industrial parks, respectively, including both direct and indirect emissions. Economic assessment revealed that the unit costs for the three technologies were also high, thereby necessitating national financial support. Finally, relevant policy suggestions and future concerns were proposed and discussed.

  • analysis of low carbon industrial symbiosis technology for carbon mitigation in a chinese iron Steel industrial park a case study with carbon flow analysis
    2013
    Co-Authors: H Zhang, Liang Dong, Tsuyoshi Fujita, Satoshi Ohnishi, Qing Tang
    Abstract:

    CO2 mitigation strategies in industrial parks are a significant component of the Chinese climate change mitigation policy, and industrial symbiosis can provide specific CO2 mitigation opportunity. Technology is important to support symbiosis, but few studies in China have focused on this topic at the industrial park level. This research presented a case study in a national iron and Steel industrial park in China. Focus was given onto carbon mitigation through industrial symbiosis technology using substance flow analysis (SFA). Three typical iron and Steel industry technologies, including coke dry quenching (CDQ), combined cycle power plant (CCPP), and CO2 capture by slag carbonization (CCSC) were evaluated with SFA. Technology assessment was further conducted in terms of carbon mitigation potential and unit reduction cost. Compared with the Business as usual (BAU) scenario, application with CDQ, CCPP, and CCSC reduced the net carbon emissions by 56.18, 134.43, and 222.89 kg CO2 per ton Crude Steel inside the industrial parks, respectively, including both direct and indirect emissions. Economic assessment revealed that the unit costs for the three technologies were also high, thereby necessitating national financial support. Finally, relevant policy suggestions and future concerns were proposed and discussed. (C) 2013 Elsevier Ltd. All rights reserved.

  • investigation of the residual heat recovery and carbon emission mitigation potential in a chinese Steelmaking plant a hybrid material energy flow analysis case study
    2013
    Co-Authors: Hui Zhang, Liang Dong, Huiquan Li, Bo Chen, Qing Tang, Tsuyoshi Fujita
    Abstract:

    Abstract As an energy intensive industry, China’s iron/Steel industry faces the challenge of energy conservation and carbon emission reduction. Energy efficiency, especially residual heat recovery is a critical issue. China is promoting a circular economy strategy in the iron/Steel industry, technology upgrading and industrial symbiosis make the material and energy flows more complicated. In order to quantify the energy flows and the related residual heat recovery and carbon emission mitigation potential, this study proposes a hybrid material and energy flow analysis approach at company level. We analyze the material based energy flow routes and the transformation rules. Then, we develop an evaluation index to evaluate the specific energy consumption (SEC) and direct carbon dioxide (CO 2 ) emissions (DCE). Furthermore, a case study is conducted in a 10 million ton/year Steelmaking plant in northern China. Results verified the effectiveness of the proposed approach. According to the results, the residual heat and carbon emission is mapped out graphically. Results highlight that the case company has 4.87 GJ/tons of Crude Steel residual heat recovery potential, equal to 26.08% of the total energy consumption. Finally, policy implications on the ever-improvement of residual heat utilization and the future research concerns are proposed and discussed.

Qing Tang - One of the best experts on this subject based on the ideXlab platform.

  • analysis of low carbon industrial symbiosis technology for carbon mitigation in a chinese iron Steel industrial park a case study with carbon flow analysis
    2013
    Co-Authors: Hui Zhang, Liang Dong, Huiquan Li, Tsuyoshi Fujita, Satoshi Ohnishi, Qing Tang
    Abstract:

    CO2 mitigation strategies in industrial parks are a significant component of the Chinese climate change mitigation policy, and industrial symbiosis can provide specific CO2 mitigation opportunity. Technology is important to support symbiosis, but few studies in China have focused on this topic at the industrial park level. This research presented a case study in a national iron and Steel industrial park in China. Focus was given onto carbon mitigation through industrial symbiosis technology using substance flow analysis (SFA). Three typical iron and Steel industry technologies, including coke dry quenching (CDQ), combined cycle power plant (CCPP), and CO2 capture by slag carbonization (CCSC) were evaluated with SFA. Technology assessment was further conducted in terms of carbon mitigation potential and unit reduction cost. Compared with the Business as usual (BAU) scenario, application with CDQ, CCPP, and CCSC reduced the net carbon emissions by 56.18, 134.43, and 222.89kg CO2 per ton Crude Steel inside the industrial parks, respectively, including both direct and indirect emissions. Economic assessment revealed that the unit costs for the three technologies were also high, thereby necessitating national financial support. Finally, relevant policy suggestions and future concerns were proposed and discussed.

  • analysis of low carbon industrial symbiosis technology for carbon mitigation in a chinese iron Steel industrial park a case study with carbon flow analysis
    2013
    Co-Authors: H Zhang, Liang Dong, Tsuyoshi Fujita, Satoshi Ohnishi, Qing Tang
    Abstract:

    CO2 mitigation strategies in industrial parks are a significant component of the Chinese climate change mitigation policy, and industrial symbiosis can provide specific CO2 mitigation opportunity. Technology is important to support symbiosis, but few studies in China have focused on this topic at the industrial park level. This research presented a case study in a national iron and Steel industrial park in China. Focus was given onto carbon mitigation through industrial symbiosis technology using substance flow analysis (SFA). Three typical iron and Steel industry technologies, including coke dry quenching (CDQ), combined cycle power plant (CCPP), and CO2 capture by slag carbonization (CCSC) were evaluated with SFA. Technology assessment was further conducted in terms of carbon mitigation potential and unit reduction cost. Compared with the Business as usual (BAU) scenario, application with CDQ, CCPP, and CCSC reduced the net carbon emissions by 56.18, 134.43, and 222.89 kg CO2 per ton Crude Steel inside the industrial parks, respectively, including both direct and indirect emissions. Economic assessment revealed that the unit costs for the three technologies were also high, thereby necessitating national financial support. Finally, relevant policy suggestions and future concerns were proposed and discussed. (C) 2013 Elsevier Ltd. All rights reserved.

  • investigation of the residual heat recovery and carbon emission mitigation potential in a chinese Steelmaking plant a hybrid material energy flow analysis case study
    2013
    Co-Authors: Hui Zhang, Liang Dong, Huiquan Li, Bo Chen, Qing Tang, Tsuyoshi Fujita
    Abstract:

    Abstract As an energy intensive industry, China’s iron/Steel industry faces the challenge of energy conservation and carbon emission reduction. Energy efficiency, especially residual heat recovery is a critical issue. China is promoting a circular economy strategy in the iron/Steel industry, technology upgrading and industrial symbiosis make the material and energy flows more complicated. In order to quantify the energy flows and the related residual heat recovery and carbon emission mitigation potential, this study proposes a hybrid material and energy flow analysis approach at company level. We analyze the material based energy flow routes and the transformation rules. Then, we develop an evaluation index to evaluate the specific energy consumption (SEC) and direct carbon dioxide (CO 2 ) emissions (DCE). Furthermore, a case study is conducted in a 10 million ton/year Steelmaking plant in northern China. Results verified the effectiveness of the proposed approach. According to the results, the residual heat and carbon emission is mapped out graphically. Results highlight that the case company has 4.87 GJ/tons of Crude Steel residual heat recovery potential, equal to 26.08% of the total energy consumption. Finally, policy implications on the ever-improvement of residual heat utilization and the future research concerns are proposed and discussed.

Hui Zhang - One of the best experts on this subject based on the ideXlab platform.

  • analysis of low carbon industrial symbiosis technology for carbon mitigation in a chinese iron Steel industrial park a case study with carbon flow analysis
    2013
    Co-Authors: Hui Zhang, Liang Dong, Huiquan Li, Tsuyoshi Fujita, Satoshi Ohnishi, Qing Tang
    Abstract:

    CO2 mitigation strategies in industrial parks are a significant component of the Chinese climate change mitigation policy, and industrial symbiosis can provide specific CO2 mitigation opportunity. Technology is important to support symbiosis, but few studies in China have focused on this topic at the industrial park level. This research presented a case study in a national iron and Steel industrial park in China. Focus was given onto carbon mitigation through industrial symbiosis technology using substance flow analysis (SFA). Three typical iron and Steel industry technologies, including coke dry quenching (CDQ), combined cycle power plant (CCPP), and CO2 capture by slag carbonization (CCSC) were evaluated with SFA. Technology assessment was further conducted in terms of carbon mitigation potential and unit reduction cost. Compared with the Business as usual (BAU) scenario, application with CDQ, CCPP, and CCSC reduced the net carbon emissions by 56.18, 134.43, and 222.89kg CO2 per ton Crude Steel inside the industrial parks, respectively, including both direct and indirect emissions. Economic assessment revealed that the unit costs for the three technologies were also high, thereby necessitating national financial support. Finally, relevant policy suggestions and future concerns were proposed and discussed.

  • investigation of the residual heat recovery and carbon emission mitigation potential in a chinese Steelmaking plant a hybrid material energy flow analysis case study
    2013
    Co-Authors: Hui Zhang, Liang Dong, Huiquan Li, Bo Chen, Qing Tang, Tsuyoshi Fujita
    Abstract:

    Abstract As an energy intensive industry, China’s iron/Steel industry faces the challenge of energy conservation and carbon emission reduction. Energy efficiency, especially residual heat recovery is a critical issue. China is promoting a circular economy strategy in the iron/Steel industry, technology upgrading and industrial symbiosis make the material and energy flows more complicated. In order to quantify the energy flows and the related residual heat recovery and carbon emission mitigation potential, this study proposes a hybrid material and energy flow analysis approach at company level. We analyze the material based energy flow routes and the transformation rules. Then, we develop an evaluation index to evaluate the specific energy consumption (SEC) and direct carbon dioxide (CO 2 ) emissions (DCE). Furthermore, a case study is conducted in a 10 million ton/year Steelmaking plant in northern China. Results verified the effectiveness of the proposed approach. According to the results, the residual heat and carbon emission is mapped out graphically. Results highlight that the case company has 4.87 GJ/tons of Crude Steel residual heat recovery potential, equal to 26.08% of the total energy consumption. Finally, policy implications on the ever-improvement of residual heat utilization and the future research concerns are proposed and discussed.

Qi Zhang - One of the best experts on this subject based on the ideXlab platform.

  • comprehensive assessment of energy conservation and co2 emissions mitigation in china s iron and Steel industry based on dynamic material flows
    2018
    Co-Authors: Qi Zhang, Ali Hasanbeigi, Yujie Wang, Wei Zhang, Jin Xu, Hongyou Lu, Marlene Arens
    Abstract:

    To investigate the potential of energy saving and emissions mitigation during 2015–2050 in China’s iron and Steel industry (CISI), a comprehensive assessment approach was developed and applied on the basis of the dynamic Material Flow Analysis (MFA) model and the energy consumption and carbon dioxide (CO2) emission model. Four scenarios including the business-as-usual (BAU) scenario, the structure adjustment (STA) scenario, the energy-efficiency improvement (EEI) scenario, and the strengthened policy (STP) scenario have been set to describe future energy saving and carbon mitigation strategies in relation to the development of the iron and Steel industry. The modeling results show that China’s Steel demand will gradually decrease from 789.35 Mt in 2013 to 440.38 Mt in 2043 and will stabilize at around 450 Mt, and the scrap resources are sufficient to support the promotion of the production structure under all four scenarios. The results also indicate that energy consumption and CO2 emissions will gradually decline under the synergistic effect of technology promotion and structure adjustment during the period. In the short term, they will depend more on technology improvement; in the long term, particularly after 2040, promotion of the production structure adjustment will be the main force. The selected 35 energy saving technologies (ESTs) contribute to 3.01 GJ/t and 398.22 kg CO2/t Crude Steel when the discount rate of 15% is applied.

  • comprehensive assessment of energy conservation and co 2 emissions mitigation in china s iron and Steel industry based on dynamic material flows
    2018
    Co-Authors: Qi Zhang, Ali Hasanbeigi, Yujie Wang, Wei Zhang, Marlene Arens
    Abstract:

    Abstract To investigate the potential of energy saving and emissions mitigation during 2015–2050 in China’s iron and Steel industry (CISI), a comprehensive assessment approach was developed and applied on the basis of the dynamic Material Flow Analysis (MFA) model and the energy consumption and carbon dioxide (CO2) emission model. Four scenarios including the business-as-usual (BAU) scenario, the structure adjustment (STA) scenario, the energy-efficiency improvement (EEI) scenario, and the strengthened policy (STP) scenario have been set to describe future energy saving and carbon mitigation strategies in relation to the development of the iron and Steel industry. The modeling results show that China’s Steel demand will gradually decrease from 789.35 Mt in 2013 to 440.38 Mt in 2043 and will stabilize at around 450 Mt, and the scrap resources are sufficient to support the promotion of the production structure under all four scenarios. The results also indicate that energy consumption and CO2 emissions will gradually decline under the synergistic effect of technology promotion and structure adjustment during the period. In the short term, they will depend more on technology improvement; in the long term, particularly after 2040, promotion of the production structure adjustment will be the main force. The selected 35 energy saving technologies (ESTs) contribute to 3.01 GJ/t and 398.22 kg CO2/t Crude Steel when the discount rate of 15% is applied.

  • waste energy recovery and energy efficiency improvement in china s iron and Steel industry
    2017
    Co-Authors: Qi Zhang, Xiaoyu Zhao
    Abstract:

    Abstract Waste energy recovery and utilization presents a crucial opportunity in primary energy reduction and energy efficiency improvement for the global iron and Steel industry. However, lack of comprehensive and practical methodology, the exact quantity of waste energy is often poorly quantified. This paper develops an innovative techno-economic model to quantify this opportunity that links theoretical, technical, and economic potential with the characteristics of waste energy resources and waste recycling technologies. Various forms of waste energy, such as sensible heat, pressure energy, and chemical energy, were examined. In addition, four scenarios were established to evaluate future energy saving potential and energy consumption reduction under the synergistic effect of technology promotion and structure adjustment. Findings show that the proportion of practical potential is less than 20% when considering the technical implementation rate for the average industry value. The selected 35 energy-saving technologies contribute to 3.08 GJ/t Crude Steel of cumulative energy savings, and technology implementation plays a significant role in energy consumption reduction. A sensitivity analysis indicates that energy price and discount rate are the most sensitive factors.