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Beijing Experience on Coal-burning Pollution Control Beijing Municipal Ecology and Environment Bureau November, 2018

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  • Beijing Experience

    on Coal-burning Pollution Control

    Beijing Municipal Ecology and Environment Bureau

    November, 2018

  • Ⅲ What We Have Achieved

    Main Content

    I Brief Introduction of Beijing

    Ⅱ What We Have Done to Control Coal-burning Pollution

  • Landform:Mountains around

    Area:16,000 km2

    Climate:Temperate continental

    monsoon

    Annual precipitation:448 mm

    Population:> 21 million

    Vehicle fleet:> 5.9 million

    Annual Energy Consumption:

    71.3 million tce

    Total construction area under

    process : 200 million m2

    I. Brief Introduction

  • 1990s, Beijing encountered severe air pollution. The research showed that coal

    combustion was the main source. Since that time Beijing adopted the Clean

    Energy Strategy, and vigorously developed electricity, natural gas and

    renewable energy to cut emission and optimize energy mix

    The coal consumption in Beijing mainly in four areas: Power Plant, Heating

    Boilers, Industry, Household Stove

    ⅡWhat We Have Done to Control Coal-burning Pollution

    燃气锅炉

    延庆德青源沼气发电北京官厅风力发电场Gas-fired boiler

    煤改电

    Guanting Wind

    Power PlantUtilization of solar energy

    in rural areas

  • Ⅱ What We Have Done to Control Coal-burning Pollution

    (Ⅰ) Coal-fired Power Plants emission control

    1998

    Dedusting facilities

    adopted for coal-fired

    power plant

    2000

    desulfurization

    facilities

    adopted

    2007

    denitrification

    facilities

    adopted

    2010

    began to build

    4 gas-fired

    Co-generation

    power plant

    2014

    the Datang Gaojing

    coal-fired power

    plant shut down

    2015

    the Beijing Energy

    coal-fired

    power plant and

    Guohua

    coal-fired power

    plant shut down

    2016

    the Huaneng

    1st phase

    coal-fired

    power plant

    shut down

    2017

    4 Co-generation

    power plant

    completed

    A history of terminal pollutants removal to clean energy substitution

  • Reduce power plant coal use

  • Ⅱ What We Have Done to Control Coal-burning Pollution

    (Ⅱ)Coal Reduction of Boilers◆

    Coal-fired boilers were replaced mainly by natural gas boilers, electricity boilers, initially in

    core-urban area, then in the other urban districts, eventually in suburb districts

    ◆Since Nov. 2015, no coal-fired boilers in urban districts of Beijing.

    ◆Now there are almost no coal-fired boilers in Beijing. From 1998 to 2018, 25.3 thousand

    boilers (without small tea/bath ones), the total capacity fo which was 91.2 thousand ton

    steam/hour, have been replaced

    Phase Focus On Zone completed

    Phase 1 coal-fired boilers below

    1 ton steam/hour &

    small tea cooking/bath

    water heating boilers

    urban districts

    Replaced 10,633 boilers,

    22,410 t/h in sum.

    replaced about 44,000

    small tea/bath boilers(1998-2002)

    Phase 2 coal-fired boilers below

    20 ton steam/hoururban districts

    replaced 5,704 boilers,

    22,141 t/h in sum(2003-2008)

    Phase 3 coal-fired boilers above

    20 ton steam/hoururban districts

    replaced 598 boilers, 5,769

    t/h in sum(2009-2012)

    Phase 4 coal-fired boilers below

    10 ton steam/hour

    urban & suburb

    districts

    Replaced 8,312 boilers,

    39,166 t/h in sum(2013-2017)

  • Reduce coal-burning boilers

  • Ⅱ What We Have Done to Control Coal-burning Pollution

    燃气锅炉Gas-fired boiler

    Urbanization

    pull down illegal buildings

    LPG for cooking

    Clean energy for winter heating

    replace poor-quality coal by

    good-quality coal

    “five measures”

    (Ⅲ)Household Coal Reduction

  • Ⅱ What We Have Done to Control Coal-burning Pollution

    Phase Year Urban Suburb SubtotalNumber of

    villages

    Phase1 2001-2008 93,700

    ----

    93.7

    2,237Phase2 2009-2012 115,000 115.0

    Phase3 2013-2017 164,900 667,000 831,900

    Total 373,600 667,000 1,040,600

    Families benefitted from the coal to electricity/gas conversion

  • Ⅱ What We Have Done to Control Coal-burning Pollution

    NOx

    Main Emission

    Sources

    Beijing Standard National Standard

    NOx limit value

    (mg/m3)Implement Time

    NOx limit value

    (mg/m3)Implement Time

    gas turbine 30 February.1.2012 50 July.1.2014

    coal-fired power

    plant boilers80 July.1.2015 100 July.1.2014

    coal-fired boilers 150 July.1.2008

    300/400(new/in use)200(special emission

    limit)July.1.2014

    gas-fired boilers80/30(phase I/phase II)

    July.1.2015

    200/400(new/in use)200(special emission

    limit)July.1.2014

    cement

    industries

    320(phase I)200(phase II)

    January.1.2014

    January.1.2016

    320(special emission limit)

    March.1.2014

    Low sulfur coal and its products standard. Sulfur content of industrial and civil coal must be controlled below 0.4%, most

    stringent in China

    Although the NOx emission limit of gas turbine is 30mg/m3, the actual NOx emission concentration of

    gas turbine in Beijing is around 15mg/m3.

    (Ⅳ)Most Stringent Boiler Emission Limit In China

  • Ⅲ What We have Achieved

    Energy mix has been optimized obviously

    ◆ In 2000, coal accounted for

    more than a half in Beijing’s

    total energy consumption.

    But in 2017 it just acounted for

    5.6%

  • Expansion of Beijing’s Coal Free Area

  • Ⅲ What We Have Achieved

    Air quality keeps improving

  • SO2 annual concentration in Beijing and surrounding areas 2013 to 2017

    2013 2014

    2016 2017

    2015

  • Next,Beijing will focus on coal-burning emission control

    in moutain villages. Suitable

    technology that is cost

    effective needs to be

    developed.