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Comprehensive Analysis of Carbon Emission Reduction Technologies (Crts) In China's Coal-Fired Power Sector: A Bottom-Up Approach

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SSRN 2024年

作者： Wang, Xutao Zhao, Xinxu Yang, Yang Shao, Yuhao Zhang, Li Ni, Yu Pan, Jun Zhang, Yongxin Zheng, Chenghang Gao, Xiang State Key Lab of Clean Energy Utilization Institute of Carbon Neutrality State Environmental Protection Engineering Center for Coal-Fired Air Pollution Control Zhejiang University Hangzhou310027 China China Power Engineering Consulting Group Corporation Peking100000 China Baima Lake Laboratory Zhejiang Provincial Laboratory of Energy and Carbon Neutrality Hangzhou310051 China

Carbon dioxide (CO2) reduction technologies (CRTs) in the coal-fired power sector play an imperative role in the mitigation of environmental challenges. However, a compelling necessity persists for a unified framework that can effectively and accurately estimate the costs and potentials associated with CRTs, arising from the diversity of technologies and unit types. Therefore, this study employs a bottom-up approach to analyze the costs and potential of 25 advanced CRTs, excluding CO2 capture, utilization and storage (CCUS), across 19 types of coal-fired power units. This analysis amalgamates the CO2 reduction supply curve (CRSC) approach with levelized cost of CO2 reduction (LCOC) and a broken-even analysis. The outcomes reveal the following key insights: (1) These technologies collectively harbor a substantial CO2 conservation potential amounting to 925.61 Mt CO2, with a broken-even price of CNY 410.1 /tCO2;(2) The 300MW Subcritical & Wet cool & CHP unit emerges as the largest potential contributor to CO2 reduction in the coal-fired power industry;(3) For advanced technologies, like≥650℃ultra-supercritical unit ,the levelized cost of energy (LCOE) of them exhibit a reduction of CNY 1–13 /MWh in comparison to the conventional 1000 MW ultra-supercritical unit;(4) Comprehensive techno-economic benefits, CO2 reduction potential and other indicators,steam turbine flow path retrofit (T8) stands out the best technology for existing units;(5) Carbon price have a paramount influence on the cost-effectiveness of the targeted CRTs, while emphasizing the consequential impact of future generation levels on their CO2 reduction potential. © 2024, The Authors. All rights reserved.

关键词： Carbon dioxide

Quantifying Electric Vehicle Energy Consumption Benefits Across Cities: A Transferable Vehicle Energy Consumption Evaluation Framework

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SSRN 2024年

作者： Jia, Zhenyu Cao, Zeping Yin, Jiawei Wu, Lin Wei, Ning Zhang, Yanjie Jiang, Zhiwen Zhang, Qijun Mao, Hongjun Tianjin Key Laboratory of Urban Transport Emission Research & State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control College of Environmental Science and Engineering Nankai University Tianjin300071 China Jinchuan Group Information and Automation Engineering Co. Ltd. Jinchang737100 China Tianjin Youmei Environment Technology Ltd. Tianjin300380 China

Vehicle electrification is an important approach worldwide for energy saving and emission reduction. However, the absence of a unified assessment method complicates the accurate quantification of energy consumption benefits from Electric Vehicles (EVs), including Plug-in Hybrid Electric Vehicles (PHEVs) and Battery Electric Vehicles (BEVs). To address this issue, the study introduces a framework for evaluating these benefits across regions based on driving cycle (DC) database and machine learning method. Tianjin and Xining, two typical cities, were used as case studies. The DC databases were iteratively generated using a 3-D Markov chain method, capturing the main driving characteristics of two cities. Energy consumption models for Internal Combustion Engine Vehicles (ICEVs), BEVs, and PHEVs achieved R2 of 0.92, 0.83, and 0.74 on the test set, respectively. The results show that EVs can achieve energy consumption benefits ranging from 16.4 % to 77.8 %. Promoting EVs in both cities yields significant energy efficiency benefits, with BEVs offering more in Tianjin, while PHEVs offer greater benefits in Xining. The model interpretation indicates that the difference stems from Tianjin's more frequent and intense deceleration and Xining's more varied terrain. The framework standardizes energy consumption assessment across vehicle types, aiding policymakers in crafting regional EVs promotion plans. © 2024, The Authors. All rights reserved.

关键词： Plug-in hybrid vehicles

An Optimized Approach Based on Rs&Gee to Develop High Spatial Resolution Pm10 Emission Inventories from Wheat Tillage in Central China

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SSRN 2022年

作者： Li, Hu Bi, Xiaohui Bi, Shenyu Wang, Xuehan Song, Lilai Li, Linxuan Dai, Qili Zhang, Wenhui Li, Sen Liang, Jun Feng, Yinchang State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control College of Environmental Science and Engineering Nankai University Tianjin300350 China CMA-NKU Cooperative Laboratory for Atmospheric Environment-Health Research Tianjin300350 China Zhumadian Ecological and Environmental Monitoring Center of Henan Province Zhumadian463000 China Zhumadian Ecological Environment Bureau Zhumadian463000 China

Soil tillage has been proved to be the most significant anthropogenic contributor to agricultural particulate matter (PM) emissions. However, current PM inventory compilation methods for agricultural tillage dust are challenged by the acquisition of high-resolution activity levels and accurate local emission factors (EF). In this study, an optimized high spatial resolution agricultural tillage dust emission inventory compiling method is proposed, which uses remotely sensed data to identify the wheat planting areas and calculate the local EF based on the google earth engine platform. The Henan province, which is a major agricultural province located in central China, is chosen to develop the PM 10 emission inventory of wheat tillage in these areas in 2020, with a spatial resolution of 250m. The magnitude of PM 10 from wheat tillage was estimated to be 13167 tons, mainly concentrated in cities east of the Henan province. Moreover, the EFs of different cities show noticeable differences and exhibit an upward trend with the increase in latitude. Pearson’s correlation analysis was carried out between the PM 10 average observed concentration during the wheat tillage stage and the PM 10 emission factor values in different cities, which confirmed the reliability of the emission inventory (r = 0. 65, p © 2022, The Authors. All rights reserved.

关键词： Tillage

Measurement of the Mixing state of Pahs on Individual Particle and its Effect on Pahs Transport in Urban and Remote Areas and Major sources

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SSRN 2022年

作者： Lian, Xiufeng Zhang, Guohua Yang, Yuxiang Chena, Mubai Yang, Wenda Cheng, Chunlei Huang, Bo Fu, Zhong Bi, Xinhui Zhoua, Zhen Lia, Mei Institute of Mass Spectrometry and Atmospheric Environment Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air Pollution Jinan University Guangzhou510632 China State Key Laboratory of Organic Geochemistry Guangdong Provincial Key Laboratory of Environmental Protection and Resources Utilization Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou510640 China Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality Guangzhou510632 China Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou510640 China Guangzhou Hexin Analytical Instrument Company Limited Guangzhou510530 China

Although recent laboratory simulations have demonstrated that organics prevent PAHs from degradation, its role in the long-range transport of PAHs in the real atmosphere remains poorly understood. In this study, we measured the chemical composition and mixing state of PAHs-containing individual particles in aerosols from three sources, one urban area and one remote area. PAHs-containing particles are classified into five types: organic carbon (OC), KOC, KNa, Krich and PAH-rich. PAH-rich and KOC particles were the main particle types of vehicle exhaust/coal burning and biomass burning, respectively, accounting for > 50% of the PAHs-containing particles. Organics enhancement in PAHs-containing particles in the ambient atmosphere, with organic-rich (OC and KOC) particles accounting for > 90%. Further analysis suggests the increased abundance of total PAHs was closely related to the increase of the number fractions of PAHs particles mixed with organics at the remote site. This is due to the protection of organics against PAHs and/or the aging of PAHs-containing particles. Our results enhance the understanding of the chemical composition and mixing state of PAHs particles in atmospheric aerosols from emission sources and urban and remote areas, and provide field observational evidence to support the promotion of long-range transport of PAHs by organics. © 2022, The Authors. All rights reserved.

关键词： Polycyclic aromatic hydrocarbons

The Research on Co Oxidation Over Ce-Mn Oxides: The Preparation Method Effects and Oxidation Mechanism

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SSRN 2023年

作者： Ye, Zhiping Liu, Yang Nikiforov, Anton Ji, Jiayu Zhao, Bo Wang, Jiade College of Environment Zhejiang University of Technology 18 Chaowang RD Hangzhou310014 China Ghent University Faculty of Engineering Department of Applied Physics Research Unit Plasma Technology Sint-Pietersnieuwstraat 41 Ghent9000 Belgium Zhejiang Tuna Environmental Science & Technology Co. Ltd Shaoxing312071 China State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing100084 China

A series of CeO2-MnOx for highly efficient catalytical oxidation of carbon monoxide were prepared by citrate sol-gel (C), hydrothermal (H) and hydrothermal-citrate complexation (CH) methods. The outcome indicates that the catalyst generated using the CH technique (CH-1:8) demonstrated the greatest catalytic performance for CO oxidation with a T50 of 98°C, and also good stability in 1400 min. Compared to the catalysts prepared by C and H method, CH-1:8 has the highest specific surface of 156.1 m2/g, and the better reducibility of CH-1:8 was also observed in CO-TPR. It is also observed the high ratio of adsorbed oxygen/lattice oxygen (1.5) in the XPS result. Moreover, characterizations by the TOF-SIMS method indicated that obtained catalyst CH-Ce/Mn=1:8 had stronger interactions between Ce and Mn oxides, and the redox cycle of Mn3++Ce4+→ Mn4++Ce3+ was a key process for CO adsorption and oxidation process. According to in-situ FTIR, the possible reaction pathway for CO was deduced in three ways. CO directly oxidize with O2 to CO2, CO adsorbed on Mn4+ and Ce3+ reacts with O to form intermediates (COO-)(T>50°C) and carbonates (T>90°C), which are further oxidized into CO2. © 2023, The Authors. All rights reserved.

关键词： Carbon dioxide

Absorption enhancement of black carbon particles in the Pearl River Delta region

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Absorption enhancement of black carbon particles in the Pear...

第22届中国大气环境科学与技术大会暨中国环境科学学会大气环境分会2016年学术年会

作者： Xinhui Bi Guohua Zhang Long Peng Qinhao Lin Xinming Wang Mei Li Duohong Chen Ning Qiu Ping'an Peng Guoying Sheng Zhou Zhen South China Sea Institute of Oceanology Chinese Academy of SciencesGuangzhou 510301PR China State Environmental Protection Key Laboratory of Regional Air Quality Monitoring Guangdong Environmental Monitoring CenterGuangzhou 510308PR China Graduate University of Chinese Academy of Sciences Beijing 100039PR China State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Resources Utilization and Protection Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640PR China Atmospheric Environment Institute of Safety and Pollution Control Jinan UniversityGuangzhou 510632PR China

Mixing state of black carbon(BC)on light absorption is of enduring interest due to its tight connection to regional/global *** we present first concurrent measurements of both BC absorption enhancement(Eabs)and chemic...

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Accelerating environmental Research to Achieve Sustainable Development Goals

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environmental SCIENCE & TECHNOLOGY LETTERS 2023年第11期10卷 961-962页

作者： Mihelcic, James R. Barra, Ricardo O. Brooks, Bryan W. Diamond, Miriam L. Eckelman, Matthew J. Gibson, Jacqueline MacDonald Guidotti, Sunny Ikeda-Araki, Atsuko Kumar, Manish Maiga, Ynoussa McConville, Jennifer Miller, Shelly L. Pizarro, Valeria Rosario-Ortiz, Fernando Wang, Shuxiao Zimmerman, Julie B. Department of Civil & Environmental Engineering University of South Florida 4202 E Fowler Ave ENG 030 Tampa Florida 33620 United States Faculty of Environmental Sciences and EULA Chile Centre University of Concepcion Barrio Universitario s/n Concepción 4070386 Chile Department of Environmental Science Baylor University One Bear Place #97266 Waco Texas 76798-7266 United States Department of Earth Sciences and School of the Environment University of Toronto Toronto M5S 1A1 ON Canada College of Engineering Northeastern University Boston Massachusetts 02115 United States Department of Civil Construction and Environmental Engineering North Carolina State University Fitts-Woolard Hall Room 3253 915 Partners Way Raleigh North Carolina 27695-7908 United States UNICEF Latin America and Caribbean Regional Office Building 102 Alberto Tejada Street City of Knowledge 0843 Republic of Panama Faculty of Health Sciences Hokkaido University Kita 12 Nishi 5 Kitaku Sapporo 060-0812 Japan Sustainability Cluster School of Engineering University of Petroleum & Energy Studies Dehradun Uttarakhand 248007 India Escuela de Ingenieria y Ciencias Tecnologico de Monterrey Campus Monterey Monterrey 64849 Nuevo León Mexico Laboratory of Microbiology and Microbial Biotechnology UFR SVT University Joseph KI-ZERBO 03 BP 7021 Ouagadougou Burkina Faso Department of Energy and Technology Swedish University of Agricultural Sciences Box 7032 Uppsala SE-750 07 Sweden Department of Mechanical Engineering University of Colorado Boulder 427 UCB Boulder Colorado 80309-0427 United States Perry Institute for Marine Science Windsor School (Albany Campus) Frank Watson Boulevard Adelaide The Bahamas Department of Civil Environmental and Architectural Engineering Environmental Engineering Program University of Colorado Boulder Colorado 80309 United States State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084