the co-benefit study on greenhouse gases … sessionⅣ[email protected] the co-benefit study...
TRANSCRIPT
The Co-benefit Study on Greenhouse Gases Mitigation and Air Pollution Control in China
Chinese Research Academy of Environmental Sciences
14th Workshop on Greenhouse Gas Inventory in Asia (WGIA 14)
Contents
NGIT Brief
The Connotation of Co-benefit
The Mechanism of Co-benefit
The Estimating Methodology
The Case studies
Conclusions
[email protected] 2016/8/2
NGIT Brief ----National Greenhouse Gases Inventory Team
NDRC
Energy
Industry Process
Agricultural LULUCF
Waste
Xu Huaqing
Su Minshan
Zu Jianhua Han Shenhui Zhang Wen
Zu Songli
Gao Qingxian Ma Zhanyun Shi Huading
Atmospheric pollution impacts on climate change
Climate Change Atmospheric pollution
Climate change impact on atmospheric pollution
Clouds Aerosol Direct and indirect raditive forcing SLCP
Pollutants characters Photochemistry Transportation and deposition Visibility Acid deposite Oxidation ability ……
The Connotation of Co-benefit --Background
[email protected] 2016/8/2
Energy
Industry
Agricultural
Land use
Transportation
Human Settlement
SO2
NO2 PMs NO
H2S CO
BC Pb Hg
Ge
VOCs
CO2
CH4
HFCs N2O
PFCs
NF3
SF6
The Connotation of Co-benefit --Same-source property
waste
[email protected] 2016/8/2
Energy
Industry
Agricultural
Land use
Transportation
Human Settlement
Energy Saving
Low Carbon technology Industry policies
Renewable energy
Enhance Afforestation etc. Develop circulate economy
The Connotation of Co-benefit --Same-measures property
Energy Saving
Clean energy
Desulfurization and denitrogenation
Technique reform
Enhance Afforestation Cleaner production
waste
[email protected] 2016/8/2
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.
[email protected] [email protected] 8
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.
The Connotation of Co-benefit --Targets
[email protected] [email protected] 9
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.
The Connotation of Co-benefit --Goal
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
The Connotation of Co-benefit --Methodology
Source: 【burning 】 【 transportation、electricity】 PM、SO2、Nox
Direct and indirect CO2
Raw Material Preparation Clinker Burning Cement Production
Raw Ore
Raw Coal
Raw Batch Warehouse
Cement
Packing
In Bulk
Decomposition furnace
Rotary kiln
Grate cooler
Sources 【material pile、transportation】 【broken】 PM Indirect CO2
Sources 【 material pile、transportation 】 PM Indirect CO2
The Mechanism of Co-benefit –--- {Cement}
Source: 【burning 】 【 transportation、electricity】 PM、F 、 SO2、Nox
Direct and indirect CO2
Raw Materials Sintering Steel-making
Raw Ore
Subsidiary
Warehouse Steel-making
Continuous casting
Sintering and iron-making
Coking, blast furnace
Electric furnace, converter
Sources 【material pile、transportation】 【broken】 PM Indirect CO2
Steel rolling
Source: 【burning 】 【 transportation、electricity】 PM、F 、 SO2、Nox
Direct and indirect CO2
The Mechanism of Co-benefit –--- {Iron and Steel}
Transient emissions
Cold and hot starting, acceleration, the sudden
increase in load conditions while moving
Steady state emissions
large, medium and small load; speed different ;
CO, HC and NOx Diesel Engine Gasoline Energy
Source: 【burning、transportation、electricity】 PM、CO 、HC、Nox 、BC Direct and indirect CO2
The Mechanism of Co-benefit –--- {Transportation}
Co-benefit control
Quantitative Assessment
Pollutants emissions
GHGs emissions
Gases: SO2 NOx PM VOCs….
Progress: Burning Transportation Warehouse Transformation…
IPCC methods： CO2
CH4
N2O F-Gases….
CMD method Others
The Estimating Methodology
[email protected] 2016/8/2
0
50
100
150
200
250
300
2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Capicity Production
China's cement production and capacity in recent decades (ten million tons)
The Case studies-----Cement
[email protected] 2016/8/2
Dust
CO2
NOx
SO2
HF
CaCO3 decomposition of raw materials Fuel combustion
Raw materials burring Fuel combustion
High temperature aerobic burning of H2 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
The Case studies-----Cement
[email protected] 2016/8/2
Product method Heat consumption
of clinker （kJ/kg）
Standard coal consumption of Clinker （kgce/t）
relevant（%）
New dry process kiln 3260 111 100
Shaft kiln 4180 143 129
Lepol kiln 4096 140 126
Hollow dry kiln 5434 186 168
Wet kiln 5852 200 180
The comparison of coal consumption of Cement production
The Case studies-----Cement
To speed up the eliminating for backward production techniques To develop and promote the new dry process kiln technology
[email protected] 2016/8/2
Type of kiln Production Coal consumption Electricity Total
Shaft kiln 480.65 398.34 21.50 900.50
Wet kiln 495.74 458.99 54.74 1009.47
Pre heater kiln 501.81 352.64 77.43 931.88
New dry process kiln 498.01 254.52 81.47 834.00
The CO2 emissions intensity from different clinker process (t one cement guessed)
The Case studies-----Cement
To speed up the eliminating for backward production techniques To develop and promote the new dry process kiln technology
[email protected] 2016/8/2
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 CO2 reduction 30 thousand tons per year The Dioxin emission is about 0.0376 ng/m3
{far less than control standard value (0.1 ng/m3) in most EU country}
[email protected] 2016/8/2
The Case studies-----Cement
Raw material
Rotary Kiln
Gasifier
MSW
Cement guessed
decomposition furnace
To treat solid waste using cement kiln techniques
[email protected] 2016/8/2
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 of the material by external force, generated a lot of new interface, the absorption of SO2
Reducing SO2 emissions 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
The Case studies-----Cement : Co-benefit technology
