The Co-benefit Study on Greenhouse Gases Mitigation and Air Pollution Control in China

Transcription

1 14 th Workshop on Greenhouse Gas Inventory in Asia (WGIA 14) The Co-benefit Study on Greenhouse Gases Mitigation and Air Pollution Control in China Chinese Research Academy of Environmental Sciences

2 Contents NGIT Brief The Connotation of Co-benefit The Mechanism of Co-benefit The Estimating Methodology The Case studies Conclusions

3 NGIT Brief ----National Greenhouse Gases Inventory Team Energy Zu Songli Xu Huaqing Gao Qingxian Ma Zhanyun Shi Huading Waste NDRC Industry Process Su Minshan LULUCF Agricultural Zu Jianhua Han Shenhui Zhang Wen

4 The Connotation of Co-benefit --Background Climate change impact on atmospheric pollution Pollutants characters Photochemistry Transportation and deposition Visibility Acid deposite Oxidation ability Atmospheric pollution impacts on climate change Climate Change Clouds Aerosol Direct and indirect raditive forcing SLCP Atmospheric pollution 4

5 The Connotation of Co-benefit --Same-source property SF 6 NF 3 PFCs HFCs CH 4 N 2 O CO 2 waste Land use Agricultural Human Settlement Transportation Industry Energy BC Pb Hg Ge H 2 S CO VOCs NO NO 2 PMs SO 2

6 The Connotation of Co-benefit --Same-measures property Enhance Afforestation etc. Develop circulate economy Renewable energy Low Carbon technology Industry policies Energy Saving waste Land use Agricultural Human Settlement Transportation Industry Energy Desulfurization and denitrogenation Enhance Afforestation Cleaner production Technique reform Clean energy Energy Saving

7 The Connotation of Co-benefit --Principle The Co-benefit principle is to maximize synergetic control effects. It consists of two aspects: Physics------the resources utilization maximized and pollutant emissions minimized. Economy----the economic efficiency maximized, and ensuring resources saving and enhancing control measures.

8 The Connotation of Co-benefit --Targets Targets for co-benefit control:pollutants Emission Sources and Greenhouse Gases Emissions Executive Subject:people, a conscious intervention activities. Executive Object: All kinds of process, the emission source, technical and policy etc. 8

9 The Connotation of Co-benefit --Goal To ensure normal activities (production and daily life), To maximum save economic resources and material resources, Do not produce waste, under this premise, to realize the minimizing pollutant emissions and greenhouse gas emissions. 9

10 The Connotation of Co-benefit --Methodology To clarify the mechanism of co-benefit control To identify the boundary and clarify the process To quantify all kinds of emissions (pollutants and GHGs) include direct and indirect emissions To identify positive and negative co-benefit effects in each link To formulate co-benefit control scheme According the control key points to design the scheme To quantify the co-benefit control effects To improve co-benefit control scheme To enhance co-benefit control management and assessment To build supervision and management system To enhance communication and sharing To carryout co-benefit control effect assessment

11 The Mechanism of Co-benefit --- {Cement} Raw Material Preparation Clinker Burning Cement Production Raw Ore Raw Coal Raw Batch Decomposition furnace Rotary kiln Grate cooler Warehouse Cement Packing In Bulk Sources material pile transportation broken PM Indirect CO 2 Source: burning transportation electricity PM SO 2 No x Direct and indirect CO 2 Sources material pile transportation PM Indirect CO 2

12 The Mechanism of Co-benefit --- {Iron and Steel} Raw Materials Sintering Steel-making Raw Ore Subsidiary Warehouse Sintering and iron-making Coking, blast furnace Electric furnace, converter Steelmaking Continuous casting Steel rolling Sources material pile transportation broken PM Indirect CO 2 Source: burning transportation electricity PM F SO 2 No x Direct and indirect CO 2 Source: burning transportation electricity PM F SO 2 No x Direct and indirect CO 2

13 The Mechanism of Co-benefit --- {Transportation} Steady state emissions large, medium and small load; speed different ; CO, HC and NOx Gasoline Energy Diesel Engine Transient emissions Cold and hot starting, acceleration, the sudden increase in load conditions while moving Source: burning transportation electricity PM CO HC No x BC Direct and indirect CO 2

14 The Estimating Methodology Pollutants emissions GHGs emissions Gases: SO 2 NO x PM VOCs. Progress: Burning Transportation Warehouse Transformation Co-benefit control Quantitative Assessment IPCC methods: CO 2 CH 4 N 2 O F-Gases. CMD method Others

15 The Case studies-----cement Capicity Production China's cement production and capacity in recent decades (ten million tons)

16 The Case studies-----cement NOx HF Dust High temperature aerobic burning of H 2 in the air Fluorite ore machine In the process of calcinations of the raw materials Raw material preparation system Clinker burning system Made from cement system Raw materials burring Fuel combustion CaCO 3 decomposition of raw materials Fuel combustion SO 2 CO 2

17 The Case studies-----cement To speed up the eliminating for backward production techniques To develop and promote the new dry process kiln technology Product method The comparison of coal consumption of Cement production Heat consumption of clinker (kj/kg) Standard coal consumption of Clinker (kgce/t) relevant(%) New dry process kiln Shaft kiln Lepol kiln Hollow dry kiln Wet kiln

18 The Case studies-----cement To speed up the eliminating for backward production techniques To develop and promote the new dry process kiln technology The CO 2 emissions intensity from different clinker process (t one cement guessed) Type of kiln Production Coal consumption Electricity Total Shaft kiln Wet kiln Pre heater kiln New dry process kiln

19 The Case studies-----cement To treat solid waste using cement kiln techniques Anhui Conch Cement Company Limited (CONCH) To Disposal Municipal Solid Waste Using New Dry Process Kiln Processing System The cement production capacity is 5000 tons The MSW treatment amount is 600 t/d (300 t/d x 2) 19.8 thousand tons MSW per year were treated The energy saving 13 thousand tons ce per year The CO 2 reduction 30 thousand tons per year The Dioxin emission is about ng/m 3 {far less than control standard value (0.1 ng/m 3 ) in most EU country}

20 The Case studies-----cement To treat solid waste using cement kiln techniques Raw material MSW decomposition furnace Gasifier Rotary Kiln Cement guessed

21 The Case studies-----cement : Co-benefit technology Technology Key point of technology goal Positive co-benefit Negative co-benefit Replace the raw material The change in additives or use of raw limestone Reducing SO2 emissions Reducing CO2 emissions Raw meal grinding Reducing SO2 emissions Increase CO2 indirect emissions Add lime hydrate Reducing SO2 emissions Reducing CO2 emissions set D-SOX cyclone tube Using the free lime (fcao) generated in the calciner Reducing CO2 emissions Reducing SO2 emissions Wet scrubber Reducing dust and SO2 emissions Increase CO2 indirect emissions Kiln grinding as a whole Introduce the preheater exhaust system of raw material grinding. In raw meal grinding, because Reducing SO2 emissions of the material by external force, generated a lot of new interface, the absorption of SO2 Increase CO2 indirect emissions Bag filter alkaline material combination of SO2, NO2 acid Reducing pollutants Increase CO2 indirect emissions Fluidized calcination process to complete cement calcination in fluidized bed of higher heat transfer efficiency, rather than rotary kiln Energy saving and pollutants reduction Reducing the Nox and CO emissions Reducing the indirect CO2 emissions

22 The Case studies-----main industries Gu Alun et al. (2016)

23 Thinking GHGs mitigation Pollutants control

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