GHG reduction in cement industry and the contribution to social

infrastructure

October 7, 2015

Kenji Ogawa Acting Chair of Production and Environment Committee

Japan Cement Association

Director, Senior Executive Officer Taiheiyo Cement Corporation

1

2

Safety Society

Society in harmony with nature •Concrete structures for disaster prevention •Biodiversity at quarry

Low-Carbon Society •Energy efficiency at plant •Concrete pavement •Green building

Recycling–based Society •Utilization of alternative fuels and raw materials (AFR) at plant

Our Contributions to Social Infrastructure

Sustainable Society

3

Our Intended Nationally Determined Contribution

2030 Target (vs. 2013)

*

The target by 2030 is set by taking into account of pledges from 53 industries and companies under the KEIDANREN's Commitment to a Low Carbon Society. http://www.keidanren.or.jp/en/policy/2013/003.html

Decided NOT by top-down but bottom-up approach.

4

FY 2010 FY 2030 FY 2020

3459 MJ/ｔ-cem

Target 2020

3420

MJ/ｔ-cem

3431 MJ/ｔ-cem

FY 2013

Japanese Cement industry keeps on challenging to install energy saving equipment and utilize Alternative Fuels and Raw materials [AFR].

Target 2030

3410

MJ/ｔ-cem

Cement Roadmap Targets by 2030

5

2000

2500

3000

3500

4000

4500

1970 1975 1980 1985 1990 1995 2000 2005 2010

Spe

cific

ther

mal

ene

rgy

cons

umpt

ion

Fiscal year

including alternative fuels

excluding alternative fuels

Note: Data collection for alternative fuels has been made since 1980

Our Performance Indicator

(MJ/t-cement)

Specific Thermal Energy Consumption

Installment of Modern Kiln

Technology Conserved Effect [per technical unit] %

2010 Perspective

% 2020

Waste heat recovery for power generation

Approximately 35～40kWh/t-cli. power conserved

60 68

High performance vertical mill for grinding blast furnace slag

Maximum 40kWh/t-cem. power conserved

73 78

Roller mill system to pre-grind clinker

10～20% improved of specific power consumption during finishing process

46 －

Air beam type cooler for clinker

42～167kJ/kg-cli. of energy conservation

0.5～1.5kWh/t-cli. of power saving

50 57

High performance separator

10%～20% improved of specific power consumption

53 －

Vertical coal mill 20～25% improved of specific power consumption

90 96

Vertical roller mill for grinding raw materials

Approximately 30% improved of specific power consumption during raw material preparation

46 －

Diffusion Rate of our Best Available Technologies

6

7

Note: Total thermal energy consumption consists of values for fossil fuels, alternative fuels, and biomass. Thermal energy is measured in terms of low heat value(LHV) base. There is no correction for waste heat recovery power generation.

Comparison of Thermal Energy required for Clinker Production

Junichiro Oda; International comparisons of energy efficiency in power, steel and cement industries, Energy plicy 44 (2012) 118-129

Theoretical Value

8

Safety Society

Society in harmony with nature •Concrete structures for disaster prevention •Biodiversity at quarry

Low-Carbon Society •Energy efficiency at plant •Concrete pavement •Green building

Recycling–based Society •Utilization of alternative fuels and raw materials (AFR) at plant

Our Contributions to Social Infrastructure

Sustainable Society

9

Power Fly ash, dust gypsum

Sewage sludge

Automotive Moulding sand, paint shredder residue, used tires

Steel Slag, ash Precipitator dust

Construction and building materials Soil, board, gypsum, wood

Agriculture and Forestry Plastics, thinned wood

Local Municipality Solid wastes, incineration ash

Chemicals Solvents, plastics, residue, oil

Pulp & paper Incineration ash

Printing Incineration ash, plastics, solvents

Food products Plastics, distillery residue, glass, oil

Nonferrous smelting Copper slag, moulding sand

Establishment of Recycling–based Society

10

Item 1990 1995 2000 2005 2010 2013 2014

Blast furnace slag 12,228 12,228 12,162 9,214 7,408 8,995 8,065

Coal ashes 2,021 3,103 5,145 7,185 6,631 7,332 7,407

Dirt and Sludge 312 905 1,906 2,526 2,627 3,206 2,970

By-product Gypsum 2,300 2,502 2,463 2,707 2,037 2,401 2,320

Waste tires 101 266 323 194 89 65 58

Waste oil 141 233 359 447 470 459 435

Waste plastics - - 102 302 445 518 595

Wood chips - - 2 340 574 657 696

Construction Soil 4,660 5,602 4,897

2,097 1,937 2,407 2,598

Others 4,581 3,809 4,225 4,068

Total 21,763 25,097 27,359 29,593 25,995 30,265 29,212

(Unit:thousand tons)

Alternative Fuels and Raw Materials used in Japan

11

Safety Society

Society in harmony with nature •Concrete structures for disaster prevention •Biodiversity at quarry

Low-Carbon Society •Energy efficiency at plant •Concrete pavement •Green building

Recycling–based Society •Utilization of alternative fuels and raw materials (AFR) at plant

Our Contributions to Social Infrastructure

Sustainable Society

Case study of quick plant operation for reconstruction and debris disposal management

1. Moving image and Pictures of the Great East Japan Earthquake and Subsequent Tsunami 2. Debris Disposal Collaboration with Government

12

― 13 ―

13

Our Plant Damages suffered by Huge Tsunami

14

Disaster Debris Disposal Management

Role of Japanese Cement Industry in Management of Disaster Waste Disposal

15

Ministry of the Environment

Private sector

JCA etc. Expert group

Academia etc.

Regional Environmental Office [Local task force for disaster debris disposal]

Local governments

After disasters

Support for activity

Request

Co-operation Request

Support for activity

Request

Request

D. Waste-Net

Dispatch (For recovery and support)

Dispatch with self-decision

Request for support

Support depending on each association

Introduction for technical support etc.

Dispatch based on each agreement

Dispatch based on each agreement

CH4 CH4

Effect of Biological Co-processing on CO2 Emissions

CO2

Landfill

CO2

CO2

Ash is used for producing

clinker

Cement

Source: Sustainable cement production, CEMBUREAU

Landfill

Incineration

Utilizing for Cement Production

Ash

16

CH4

Rotten fish and shellfishery along the shore

17

Summary

The cement industry should make a well-balanced contribution to a social infrastructure toward the sustainable society consisting of a low-carbon society, a recycling-based society and a society harmonized with nature.

We, JCA, defined an enegy performance indicator to aim at assessing measures taken towards sustainable soceity.

Global cement sector could share how for the Japanese cement industry effectively to dispose disaster debris collaborated with local government.