EFB Carbonising and Its Utilisation in Cement Manufacturing for GHG Reduction

Transcription

1 EFB Carbonising and Its Utilisation in Cement Manufacturing for GHG Reduction Renewable Energy/Energy Efficiency and the CDM Workshop held in Jakarta Indonesia 13 September 2006 by Masato Tamura Ishikawajima-Harima Heavy Industries Co.,Ltd.

2 Siapa IHI? Who is IHI? Didirikan/Established : December, 1853 Modal/Capital : 590,218 (Thousands of US dollars) Sales tahunan/annual sales : 5,530,628 (Thousands of US dollars) Pegawai/Employees : 7,386 Pabrik/Works : 13 in Japan Perusahan utama/major affiliated companies : 99 in Japan Kantor, subsidiari /Offices, Subsidiaries & JV : 58 in Overseas (as of Mar. 2005) 1USD = \110 Contoh produk utama/examples of Major products Jet engines Shield tunneling machine Power station 2

3 Planned PROJECT - EFB Carbonising and Its Utilisation in Cement Manufacturing for GHG Reduction - 3

4 Palm Oil Mill : Oil Production Process FFB Steaming Fruit Press Palm Crude Oil Seed Core oil EFB Waste Fibre Power Boiler Shell Incinerator 4

5 Cement factory:cement producing process Limestone Clay Silica Iron material Cement Kiln Plaster Cooler 130kg/ton-cement COAL 6,000kcal/kg Pulveriser Cement 5

6 Carbonising plant Raw Materials Heating gas Heating gas Pyrolysis gas Dust collector External Heating type Kiln Carbonising fuel 6

7 Carbonising process Firing temp. >850 Down sizing < 150mm Heating gas temp. 550 Boiler Flue gas temp.160 Stack waste crusher Residence time 1hr Combustion chamber Gas cooler Air heater Gas cooler Bagfilter Carbonised fuel φ5~20mm pellet Carbonising furnace Pelletiser Cl <0.5% (option) Dechlorine Equipment Pyrolysis gas temp. 430~470 Char Discharger iron aluminum separator Iron Aluminum Limestone Active carbon Flying ash Ash pot Waste Flue gas Carbonised fuel Pyrolysis gas Iron, Aluminum 7

8 Carbonising Process Inside of the combustion chambre Flues Stack EFB Combustion chambre Boiler Bag Filtre Dryer EFB Carboniser Pyrolysis gas Carbonised fuel 8

9 Possible Operation without external fuels It is possible to operate with only waste calorie without any external fuels. Dryer : Direct heating by hot flue gas from Combustion chamber Carboniser : In-direct heating by hot flue gas from Combustion chamber Combustion chamber : High temperature firing of pyrolysis gas 1200 Operating without external fuels O perating trend data G as tem perature at C om bustion cham ber outlet O ilconsum ption Tem perature, Without external fuel No externalfuel O ilconsum ption,l/h 0 0:00 3:00 6:00 9:00 12:00 15:00 18:00 21:00 Tim e 0 9

10 Property of Carbonised fuel from waste Fuel properties 含有率 100% 80% 60% 40% 20% 0% 23.2 % 18.3 % 20.6 % 27.0 % 43.5 % % 40.9 % % 43.5 % 54.6 % % % 炭化物 A A 炭化物 B B 炭化物 C C Coal 石炭 Carbonised fuel Fuel 燃料比 ratio 揮発分 Volatile matter 固定炭素 Fixed carbon 灰分 Ash 水分 Water 燃料比 Fuel ratio Fuel A B C Coal HHV MJ/kg (4,816 kcal/kg) MJ/kg (4,050 kcal/kg) MJ/kg (4,579 kcal/kg) MJ/kg (6,580 kcal/kg) Water 1.9 wt% 5.7 wt% 2.6 wt% 0.2~0.3 wt% Ash 31.4 wt% 35.1 wt% 33.3 wt% 13.1~25.1 wt/% Volatile matter 23.2 wt% 18.3 wt% 20.6 wt% 29.8~33.4 wt% Fixed carbon 43.5 wt% 40.9 wt% 43.5 wt% 41.3~46.8 wt/% Fuel ratio ~2.5 10

11 Combustibility of waste Carbonised fuel Similar combustion performance with Coal Fuel ratio Ignition and burnout properties Combustion speed (Carbonised temp.,obtained Fuel ratio) 燃焼率 [%] Burnout [%] 炭化物 D D(400,1.1) 炭化物 E E(450,1.7) 炭化物 F(450,2.4) Coal 石炭 ( -,2.0) F 燃焼時間 [s] 炭化物の燃焼時間と燃焼率の関係 Residence time [s] Fuel 炭化物燃料比 ratio Carbonising 炭化温度 temp. [[ ] O C] 炭化温度と燃料比の関係 11

12 Combination of Palm Oil Mill and Cement Industry Palm Oil Mill Steaming Compress Palm Oil Cement Factory CO2 from Coal FFB Shell/Fibre Coal Grinding Cement Kiln EFB Power generation Transportation Plaster CO2 from Bio- Fuel Carboniser Bio-Fuel Cement Pulverising 12

13 Example of Expected Results Case study of one Palm Oil Mill in sumatra CO2 Reduction: 32,350 ton-co2/year replacement of Waste EFB 68,400 ton/year 8,840 ton-co2e/year reduction of CH4 from land-fill EFB 6,840 ton/year 68,400 ton/year EFB will be 13,680 ton/year carbonised fuel. It can be expected more than 20MJ/kg calorific value. 13

14 Expected Future Planning Farm Waste Low rank coal Forest Waste Food Waste Export to foreign Country Carboniser Cement Industry Power Generation High Grade Carbonised Fuel Steel manufacturing 14